I cannot recommend Colette Caldwell, PA highly enough. After seeing two orthopedic surgeons and my primary care physician, all of whom believed my injury was related to my ankle, Colette correctly diagnosed a severely broken foot within five minutes of evaluating me -- something that had been completely missed for weeks. She immediately recognized key clinical signs that had been documented in every prior visit but never fully addressed. In particular, she identified that my foot being cold to the touch was not due to recent icing (as previously assumed), but instead a more serious issue directly related to the misdiagnosed injury. That level of insight, pattern recognition, and clinical intuition was remarkable. Beyond her diagnostic skill, Colette was attentive, decisive, and compassionate. She listened carefully, connected the dots quickly, and explained everything clearly, which was incredibly reassuring after such a frustrating and overwhelming experience. Colette quite literally changed the trajectory of my care. If you are looking for someone who truly understands what they're seeing -- and who will advocate for you when something isn't right -- she is exceptional. read more

I understand weekends are busy for urgent care clinics, and the staff was doing their best, but the scheduling process was frustrating. There were multiple patients booked for the same appointment times while the waiting room was already full, which made the appointment time feel a bit meaningless. It also seemed difficult for one doctor to keep up with the weekend patient volume. Adding additional provider coverage during peak times would probably help improve wait times and the overall experience for patients. I appreciate the staff's efforts, but I do think the scheduling and staffing process could be improved especialy for a technology company. read more

Taylor in Urgent Care is an absolute gem. I had a very challenging experience recently and she has guided me every step of the difficult way. My best friend is now having an issue and I suggested Taylor for his care and she is also going above and beyond for him. Her bedside manner is top tier, she listens and truly cares. Taylor thank you for restoring my faith in the healthcare system! read more

What's the point of making an appointment? Had a 10:00 appointment and an hour later I am still waiting to be seen. Who knows how long it will be before I actually get seen? Meanwhile, other people have walked in without an appointment and have already been called in. Why book so many appointments that you have over an hour wait? read more

We went to the facility as an urgent care facility over the weekend. The doctor unfortunately spoke over us and didn't listen to us when we were explaining the issues we we're having. This lead to us in the ER the next day. Instead of offering or trying to prescribe over the counter medication, please just listen to the concerns of your patients. We never had a cough or ear infection and the pharmacist told us he prescribed a liquid version of allergy medication with Sudafed. She even was completely confused and told us not to fill the prescription. The office itself was ok. But the front desk seemed irritated to help us schedule an appt over the phone. I wouldn't recommend this place to anyone. read more

I am being charged $930 by Carbon Health's Corte Madera location for a basic ANNUAL PHYSICAL and an "establish care" visit--both of which were clearly confirmed to be in-network by their staff four separate times. Despite this, they submitted both claims as out-of-network using an incorrect NPI and are refusing to fix it. I first visited Carbon Health in Corte Madera, CA on May 2, 2025 for an "establish care" visit--required by them before I could schedule a physical. The visit lasted less than 9 minutes. The nurse never made eye contact, simply asked AI-generated questions already answered during my iPad check-in, and provided no medical care or consultation. I was charged $575 for that low value visit. I returned on May 28, 2025 for a routine physical and was charged an additional $355, bringing my total to $930. Before both appointments, I confirmed Carbon Health was in-network: 1. Over the phone before scheduling the "establish care" visit 2. Again over the phone before the physical 3. In person at the first appointment (5/2) 4. And again on the day of the physical (5/28) My insurance has since confirmed that Carbon Health is in-network, but Carbon Health submitted both claims using the wrong NPI, triggering out-of-network denial. I contacted Carbon Health's billing department several times, and they have refused to resubmit the claim using the correct NPI--despite multiple verbal confirmations from their own staff. I am requesting that Carbon Health: 1. Resubmit both claims using the correct NPI that reflects their in-network status 2. Cancel the $930 in charges 3. Provide me with written confirmation that my balance is cleared read more

This company is a joke. They accept appointments to fill their waiting room and there's no receptionist when you arrive. There is no X-ray on site so if you wait long enough to actually speak with someone, they will send you to San Francisco to start your wait all over again. UCSF has a facility in Mill Valley and I recommend it. read more

These people EXCEL at horrible customer experience. Missed appointments. Bad billing. Never answer the phone. They don't explain things. The person at the front is nice but that's all I can say that is good. read more

If you've ever wondered what healthcare would look like if it were run by a group of raccoons who found a computer, welcome to Carbon Health -- where confusion isn't a mistake, it's a core value. Let me walk you through our magical journey: *Level 1: The Science Fiction Consult We asked about the new COVID antiviral. Carbon Health (PA Novato) confidently replied with: "It could alter your DNA." ??? Marvel Studios, if you're reading this, please hire this PA -- she's clearly got ideas. * Level 2: The $395 Charge That Came Out of Thin Air A $395 bill suddenly appeared like a wizard's spell. We were told it was "removed," which was adorable, because it definitely wasn't. Carbon Health billing basically works on the honor system... except without the honor. * Level 3: The Magical Returning Refund We paid a bill. Carbon Health returned the money. Not because they fixed the issue -- no no. Because even THEY couldn't figure out why they billed us. It was the closest thing we've had to customer appreciation. * Level 4: The Front Desk's Daily Jump Scare Every visit, the receptionist pulled up my husband's chart and made the face of someone opening WebMD at 2 AM. Then they'd blink, shrug, and say "okay, you are checked in." Super reassuring. * Level 5: Customer Support -- The Final Boss I called Carbon Health. I called my insurance company. I learned that nobody actually knows what Carbon Health is doing -- including Carbon Health. If confusion burned calories, I'd be at my goal weight. * Level 6: The Waiting Room Public Shaming Spectacular Then came the showstopper. An office manager announced, loudly enough for people in the parking lot to hear: "You owe about $1,000. Pay $500 now or he can't see the doctor." Ah yes, the classic Carbon Health "Pay-Per-View Healthcare Experience." So classy. So discreet. So... HIPAA-adjacent. * Level 7: The Clinic We Never Visited Carbon Health mailed us a bill from Mill Valley (I believe no longer there?), a clinic we have never seen or driven past. The provider? A total stranger. The services billed? A work of fiction. At this point, I fully expected a bill from Atlantis. * FINAL VERDICT Carbon Health doesn't need a new billing system. Carbon Health needs a documentary crew. Preferably the same people who filmed Tiger King. Good doctors (Dr. Francesca Burgos is the best!) trapped inside a billing system that operates like a toddler with a crayon and an attitude. If you like mystery charges, sci-fi medical advice, and the thrill of not knowing what state your next bill will come from, this is your clinic. If you prefer reality? Run. Don't walk. RUN. read more

This place is a joke. I made an appointment and when I arrived at the reception, the front desk, Giselle, told me they couldn't see me for another hour. Confused, I'm like, "- I have made an appointment, I don't get it, why didn't anyone call me? I wasted an Uber ride for nothing". Giselle then tells me that they don't have time to call appointments . What is the point of making an appointment? I'm so confused. Also, how can you expect the patient to just have their whole day wide open to just wait around? I wasn't a walk-in! What is happening? read more

Brought my son in for a toe laceration during a weekend, it was not taken care of correctly, was stitched but the flap of skin could/should have been removed. It got infected and the skin that was stitched died and there was still so much sand under the skin. The regular doctor had to re-clean, unstitch and clip, took much longer to heal and we basically had to pay twice for this minor injury. read more

I wish I could them ZERO stars. I just got an e-bill which stated I have a balance. My insurance EOB said my visit was paid in full. AVOID THIS PLACE!!! read more

I'm going to be the exception here because I/we (my wife) had an excellent experience at this Urgent Care office on a Sunday. Now, perhaps because we used Medicare and a Medicare Suppliment, which they accepted as payment in full there are no billing issues. Maybe because a bunch of football games were on, we were able to make an almost immediate appointment and upon arrival got the office visit started on time. The intake person was friendly and efficient. The diagnosis and treatment was with a Physician Assistant (PA) who is able to dispense Rx and who also presented as friendly, caring and knowledgeable. I know that in this current day and age, medicine is not what it was when Drs. Kildare, Casey and Welby (for those too young to recognize these names, they were television doctors) were practicing and that insurance or lack of it, can make things infinitly more complicated and difficult and if one is using Urgent Care as a primary health provider, there can be perceptions or realities of questionable care. But my experience wasn't that, at all. So, there are five stars from me. Of course, your mileage may vary. read more

They are genuinely the worst health care provider I have ever been to. They always charge me for PCP visits that are fully covered by my insurance plan. So, I have to spend much time resolving these billing issues each time. The PCP I dealt with was rather abrupt and dogmatic. She scheduled visits I did not ask for, and she requested exams I had already taken. And, I shared the info with her. She should have known not to order the exams again. Between Carbon Health and Brown & Toland, their IPA doctor network, they are truly incapable of generating referrals/authorization to any specialist on a timely basis. A couple of months ago, I needed authorization for physical therapy. It took me over a month to just get authorization for only a 30 minute consultation. To actually get physical therapy I went directly to my usual place and paid out-of-pocket. As a side note, half of the staff look like they are on Ozempic, or should be. It is a pretty odd look for a place that provides health care. I complained about all of the above (except for the Ozempic-look bit) with Carbon Health Senior Management. I got a text indicating they were very concerned and would contact me to learn more. They never did. read more

Loom for the AT&T logo and you have arrived. The door to Carbon Health is next to AT&T so pay attention. This Urgent Care is convenient with easy parking and open until 7 pm everyday for your needs. My issue was minor. Check-in was easy and service was quick. I didn't have to wait long to be seen. Maybe it was my lucky day despite needing medical attention. Thanks to the caring team at Carbon Health! read more

Carbon Health - Waiting area - Urgent Care Near Me - Corte Madera, California

I went in for an employment drug screen as required by a prospective employer for project based work. The process is advertised to take 5 days. The testing was time sensitive and I had 13 days to get the results into the employing entity. After 8 days with no results I contacted the clinic, they did not know what the problem was. In short, we learned that the manager at Carbon Health Corte Madera had sent the wrong forms to the laboratory. By the time they straightened everything out, the deadline had passed and I missed out on the project opportunity costing me income. I am very disappointed in the quality of service and attention to detail for such an important process. Despite having reached out to catch the issue well within the deadline, they did not act rectify their mistake in time. I will not be returning and recommend people go elsewhere for such critical services. read more

This place consistently provides very poor medical care, misdiagnosed ear infections, rashes, etc. Most recently, they stitched up a wound and failed to notice that the tendon was torn. At this point, a full recovery isn't possible because of their negligence--- if they would have just been attentive at the time of the injury I could have been routed to the right follow-up care. You SHOULD NOT GO HERE! read more

I've been here twice and have had exceptionally terrible experiences both times. The front desk staff are rude and the care is subpar. Avoid going here. read more

Awful experience! Front desk girl had extremely loud annoying music turned up so loud that I couldn't hear her over the music. You would think she would turn it down but didn't. She just spoke really loud. I showed up 20 minutes early so I could get out in time. No one in the waiting room but 2 people showed up after me and knowing I to leave on time, decided to take the other 2 people after me at the time of my appt. So unprofessional and honestly did not feel like a clean doctors office. read more

Leslie Cady needs to read charts before seeing patients. I have been twice where she wants to prescribe me penicillin and I am deathly allergic. One time she even wrote it up and I checked it when I got into the car. Went back and she changed it. Thank goodness I was paying attention. Never had a doctor make that mistake before. Otherwise the scheduling is easy and it is fine for minor things. Some of the front desk team members are not very professional. read more

I had a fantastic experience with Carbon Health recently when I was dealing with significant pain in my left shoulder. Colette Caldwell was the physican assistant that treated me and not only did a thorough workup during the appointment, but continued to follow-up and check-in on my progress. When I mentioned that I was still experiencing the pain she proactively made me an appointment for an x-ray and provided a referral for an ortho appointment. Extremely satisified with my experience and with Colette. I will absolutely go back to Carbon Health in the future. read more

The NP I saw misdiagnosed my pneumonia and said I only had the flu. Got sicker and sicker till I ended up in the ER. Disastrous!!!

They don't respond to messages for many days and when they do they haven't even read the message! I have been very unhappy with the knowledge of the provider. Maybe fine for the most basic things but not for anything that requires thought and prompt attention. read more

We were seen at 530pm on a friday for a quickly increasingly painful UTI. The doctor told my daughter the RX might not be available until Monday! The RX never made it to CVS; we should have been able to pick it up that same evening. She's now in serious pain and we are seeing another urgent care provider to get her the urgent treatment she needs. Unacceptable. read more

Could have been a zoom call visit the way I was treated, except it was a wellness check. Only took BP and nurse practitioner only asked questions as she input answer into computer. Blood work was only Thyroid and A1c. Very disappointed and will never go back. There was no comprehensive check up. read more

Buyer Beware here. They were dropped by some insurance companies, meanwhile take the insurance info with no mention that you are not covered. Ended up with a hefty bill for service. When I inquired with customer service it took over a month to get a reply, that said I should call my insurance and tell them to start covering carbon health again. Not terribly helpful. Would be 1 star, but 2 because the NP covering was polite and professional. read more

Their "appointment" system is a misleading waste of time. They keep every appointment time available online no matter how many people have booked the same time. I made an appointment for myself at 9:30am, and then I made an appointment for my wife at 9:30am as well. When we showed up, 3 people were ahead of us, and there was only 1 doctor in house. Each visit is a minimum of 20 minutes, so if someone books 9:30am, then the website should block out 9:30-9:50 as unavailable, but it doesn't. This is contrary to what they advertise on their website and through their online ads - "fast 20 minute visit"... sure after you wait 2 hours past the agreed upon time to get it. read more

Initially bad when I was told there was an hour+ wait (after my scheduled appt). But was actually in the office in 20 mins. Not too bad for an urgent care center. Staff is nice, and TBD on the care. We'll see how long I'm waiting in the room. More to come! read more

I've been to this center twice so far, and was absolutely pleased both times. Both times my problems were small, but concerning. Once I went in without an appointment, and the wait was minimal. Today I had made an appointment a couple of hours earlier, and arrived a few minutes early. Two people were there ahead of me, One went in before, and I was next - very near to my time. Both times the receptionist was efficient and courteous. Both times also the nurse was thorough and kind. Both doctors whom I saw were very knowledgeable and gave me exactly the treatment I needed. From now on I do plan to go to this urgent-care for any situations that are too minor for the E.R., but I don't want to wait several weeks for my primary caregiver to see me! read more

While no one wants to go to urgent care or the er at all, unfortunately, we had to bring our 78 year old mother there yesterday. She wanted to have her finger checked because she pricked it on a plant and it was over a month now and it was giving her a lot of pain and looked infected. She had misplaced her drivers license and they refused to see her despite my sister having a picture of it. They kept insisting it was just "policy." We left. On a whim, while we were sitting outside, contemplating if we should drive to Marin General, we just looked at her wallet inside and out and found it. Luckily Carbon was still open. We went back in and the same woman at the front who happily turned us away, happily and smugly said that they were able to see my mother tomorrow. I was hot! After finding her license, my mother was so angry that she said, "this is not a big deal! It's only one finger and they can look at it really quickly! Again, here's a 78 year old woman in pain. Laneisha, apparently that's her name, went back to ask the clinician if they would see her. It was 6:39 pm and they closed at 7. No other patients were there. Thankfully, the nurse practitioner agreed to see my mother. Leslie Katy was nice, professional and down to earth. She prescribed my mother some antibiotics and suggested she soak the finger in some warm water and epsom salts. I gave her a piece of my mind. I told her that Laniesha was very dismissive and rude to us, and had no regard for a woman almost 80 years old, especially after having found the drivers license, after all! Leslie understood and said she would take it into consideration. We were out of there in less than fifteen minutes, and the place was still open for another seven minutes. Thankfully that Laniesha woman disappeared, so we didn't have to deal with her on the way out. I will say the medical assistant was okay, albeit fake, but it didn't matter at this point, since our main concern was getting my mother seen. Folks, avoid this place if you can. Only come here as a last resort. The irony of it all is my mother sells medical insurance and is semi-retired. She knows the medical business very well, but as a patient, you are really at their mercy when you're in pain. She wanted to wait until Monday, but she kept holding onto her finger, and was trying to keep it together and not be a bother, so that's why we decided to give this place a try. While I am grateful Leslie, the nurse practitioner, agreed to fit her in, despite them being opened for 21 more minutes, we would surely choose another place before coming here again. read more

Terrible service. Drove an hour for my scheduled appointment just for them to not take me until the next day.

While I thought their medical service was fine, I am very upset that at the time of checking in they didn't alert me that they were out of network for my Blue Shield PPO plan which is very surprising but also caused me to have to pay completely out of pocket. Not going there again. read more

Needed an urgent throat swab three days ago. No doctor on staff when we arrived-the PA prescribed medication I am allergic to even after both the staff nurse and PA asked about allergies. Luckily the Pharmacist at CVS asked and took care of changing the medication to a non penicillin based antibiotic. Post appointment cannot receive labs because the only way they can be delivered is via the "Carby" app and no one from the clinic sent the invite as promised three days ago. There is no customer support other than by email. When they checked my throat I noticed there was no plastic cover on the device and that it was put back on the charging stand dirty for the next patient. All of the staff appear to be very young and inexperienced. I could go on. Scary read more

Absolutely horrific experience at this clinic. Negligent healthcare at its worst. I'm currently prescribed a medication with which you have to consistently increase dosage. I was instructed very clearly to schedule a follow-up appointment with my NP after 1-month to prescribe the next increased dosage. On the day of my appointment I received a call that my provider, Francisca Turen Burgos, NP, who btw has ZERO bedside manner to begin with, was out of the office and needed to reschedule out two-weeks--leaving me without an updated prescription or any sort of resolution. I was told the Carbon staff would message her urgently and she was checking her messages periodically while on vacation and would fill the prescription and send confirmation in my app. Two days go by, I hear nothing. I call again, get the same runaround--they'll message her & notify her urgently. Still no response. I call again, same thing. Saturday roles around, injection day, and still no Rx. I call again, am placed on a 30 min hold, only to be told there's still nothing they can do. So here I am, no Rx, no solution, faced with the fact that I might have to begin this entire medication program over since I will now miss a minimum of 2-weeks dosage, and I'm left with only anger for how this situation has been handled. The word "Care" shouldn't ever be used in Carbon Health's brand, because they don't. Only bright spot was the front desk woman named Netty who took my infuriated phone call. She was kind and understanding, but had unfortunately been left with no solutions to offer me due to the negligence of the rest of the staff at this Corte Madera location. read more

2pm appt, been waiting for over an hour. employees telling each other jokes while patients wait. No MD here, just a PA and support staff. PA finally comes in, is wearing ipods, is distracted. Not coming back here, hopefully ever. read more

Does not do X-rays site, you have to schedule with an outside imaging provider. Would recommend going to a different urgent care if you need an X-ray. read more

The doctor I liked very much left the practice. I was supposed to have a 2 month refill of my meds. Of course, only received one month's worth. Now they won't give me an appointment before my meds run out. Nor did they offer to re-prescribe until my next appointment. Do I hear the phrase "Malpractice" in my head? Awaiting a return call since early this morning. No such call received. Please avoid this place. read more

Don't understand the negative reviews. Have been here 5 different. times now over several years, when I am at my absolute worst as a human being. Every time they have provided excellent care. Always an efficient in/out and easy process. And the care has always gotten me back on my feet. Staff is friendly. Highly recommend when you can't get into your primary care and don't want to wait at the emergency room for eons. read more

Very impressed with the service here. I injured my ankle and made a last minute online appointment (10am on a Saturday morning for a 12:00 visit, and wrote "x ray needed" in the notes section of my appointment. On my way over, at about 11:50 Jadah calls me and tells me she looked through my notes and saw that I needed an X-ray tech. Unfortunately their x ray tech wasn't present that day. She apologized for not calling me sooner (she responded pretty quickly to me- especially for a medical visit) and stayed on the phone with me while she looked up surrounding areas that did have an X-ray tech available. We honed in on the Albany location which was 10 minutes away so I turned my car around and headed there. She told me she earliest appointment they had was 2:40 and that she'd transfer my appointment, however if I got there around 12 they may be able to see me before lunch. I got there at 12:06. The Albany location (also very sweet and accommodating) took me in and saw me through their lunch hours 5 stars because of how proactive she was in calling me, apologetic/empathetic she was in taking responsibility (when this really wasn't even her fault) and how quickly she worked to find me a solution. She could have chose not to look into my notes ahead of time, and sent me away without a solution once I got there. I've worked at some of the top companies in customer service (Zappos, Nordstrom) so I know what good service is. She saved me time and convenience and for that I am grateful. I usually go to concentra so this is my first time with Carbon Health- but after this experience it certainly won't be my last! (Hopefully I won't need anymore urgent care, but in the event that I do, I feel confident I'll get the care that I need!) read more

So I guess, this scam company is trying to silence me instead of reaching out. After my visit now, 7 MONTHS AGO, they decided to auto charge my card on file for $40. Why? Who knows. I've reached out to billing for help with no avail. Instead they have IGNORED ME for a month and a half! And now threatening collections? I PAID MY BILL!!!!!!! Here comes the fun part. Their incompetence. I have screenshots :) Their rn gave me the WRONG VACCINE. VANESSA, if she's you're nurse, RUN. Leslie CADY, PA, ordered TDAP, and Vanessa gave me Tetanus. I have a lot number. :) A134A, I should have been administered, the vaccine ordered by Cady. tetanus-diphtheria toxoids-Td 2-2Lf unit/ 0.5ml suspension They stated that's what I was administered. Intramuscular. Where is the lot#? I wouldn't be posting this again, but you left me no choice as NO ONE has reached out to me since August. Now, you're threatening me with collections?? All I get is a generic email response from MEGAN. *Yikes...... There literally tried to hide me from viewing the reviews on my actual account. They made it seem like there were only 3 positive reviews. This place is nasty. Please, please, please, never come to this fake clinic. read more