Exceptional Care from a Physician in a League of His Own…read more I'm in my 50s and have lived in three major cities, experiencing care from multiple internists and general physicians over the years. While a couple have been good, Dr. Douglas Severance and his staff are in a league of their own. What sets him apart is not just his deep medical expertise but his pragmatic and caring demeanor -- a rare combination in today's healthcare landscape. He has successfully diagnosed complex medical conditions that others might have overlooked, guided me through holistic lifestyle changes that have significantly improved my health, and helped me navigate chronic conditions with both medical precision and compassion. Dr. Severance takes the time to truly listen, understand the full picture of his patients' health, and offer practical, sustainable solutions rather than just quick fixes. His thoughtful approach to patient care has made a profound difference in my life. Plus, he is just a great guy. He reminds me of my brother, an M.D. on the East Coast, who pursued medicine out of a genuine desire to help people. Dr. Severance embodies this same commitment. If more physicians were like him, healthcare would be transformed. I cannot recommend him highly enough--he is truly an exceptional doctor and a trusted partner in my health journey. His staff matches his caring ways. 5+ stars.

Dr. Severance who practices family medicine, listens attentively, he is an excellent communicator…read morewho truly cared about my well being. The staff is friendly, and extremely efficient and caring. My experience was very positive all the way around.

I've been a patient of Dr. Gracer, for nearly a decade, and I can't recommend him highly enough…read more From day one, Dr. Gracer, has consistently provided exceptional care. He is incredibly attentive, knowledgeable, and genuinely compassionate. I always feel heard and well cared for. He always takes time to explain everything in a way that makes sense and ensures I am comfortable with my treatment plan. Dr. Gracer, truly puts his patience first.

Dr Gracer is kind and caring. He takes the time to listen to you and explains everything very…read morewell. He makes you feel like he has all the time in the world to discuss your issues without feeling rushed. I highly recommend this excellent doctor!

To be honest, Dr Reginato wasn't my first choice when doing my research for a new primary care…read morephysician. He was the default choice after the first two declined to take new patients. But from the moment I made the appointment, then met the office staff, then meeting Dr Reginato for the first time -- I definitely feel I made a great choice. He was very thorough, nice, and a gentle spirit. He wanted to know all about me and prior conditions. He checked me up, down, and sideways. He recognized something that alarmed him, that ended up getting an x-ray (Bass), and then further, having a procedure (Bass), that proved to be negative. But my takeaway, I've had other doctors and no one noticed this. Despite the start, I found my new doctor. I recommend!

Dr prescribes meds way to fast without checking the actual background. Patients are in and out of…read morethere too fast with out Dr R actually getting to the root of a problem. PLS Dr R check with the patient if you can contact their family and get the real scoop of what is going on. A patients demise might be on your record.

Dr. Frank Lin was my family doctor for more than 10 years. He has moved to another medical network…read morethat I'm not a part of, but I still want to highly recommend him to anyone looking for an excellent physician. Dr. Lin is trilingual; besides English, he speaks fluent Chinese and some Taiwanese. He constantly goes above and beyond the standard practice of a family doctor, and his medical knowledge is far more extensive than most. If I hadn't moved away, I would have switched my medical network just to keep seeing him. It is truly hard to find a doctor as dedicated and capable as Dr. Lin.

Family Practice/primary care. a very engaging physical with a pleasant personality. He seems very…read moreknowledgeable and is a good listener. The office, Tri-Valley Medical Associates, is well run and has friendly staff.

Dr Wherry is a family physician who is real, trustworthy, and honest. I am lucky to be a patient…read more The office is well run by friendly staff. I certainly recommend him, but he might have limited availability to taking new patients.

Love Dr Wherry. He very quickly diagnosed a problem side effect I had with a medication and I…read morereally appreciate that.

Very professional and through with wonderful follow up and service. The only issue was that I…read morecouldn't get through on the phone and drove there to make my appointment

I have had cancer twice so trying to stay on top of my health issues. Dr. Wong ordered an MRI which…read moreI had done about 3 weeks ago. I am still waiting for a response from Dr. Wong. I have sent 3 messages through the John Muir portal plus leaving messages for him at his office but still NO response. I can't believe the lack of care/concern that I have received. It would be great just to get a phone call or even a message back regarding the MRI that was done 3 weeks ago.

LOVE Dr. Flagg!! He is thorough with his exams, is personable, and is very knowledgeable. Though…read moregetting an appointment may be challenging due to so many patients wanting to see him, it's definitely worth it. The office was even able to schedule my next annual visit while I was there. Highly recommend Dr. Flagg if you're in the Danville/San Ramon area.

Dr. Flagg is everything you'd want in a primary care physician: knowledgeable, empathetic,…read morecourteous, and diligent. The last quality is especially evident in the fact that he responds quickly to messages, takes the time to communicate with you outside of office visits with regard to test results, etc. He also has a good sense of humor. He's also assisted by a great office staff.

This review is for the Cardiology department only. Last week my great uncle needed to have a…read morepacemaker put in. After the procedure I asked if it was ok for him to use his microwave oven at home. I had heard that microwave ovens can interfere with pacemakers. The nurse said that she wasn't sure. She suggested to be on the safe side he can use his microwave, but he should run out of the kitchen after pressing the start button. I was appalled. First off my great uncle was a war hero and lost the use of his legs in Korea in an attempt to rid the world of communism. How is a man who is confined to a wheelchair supposed to cook his hot pocket under these circumstances? Just imagine my poor great uncle Sterling having to wheel himself across the kitchen floor to avoid certain death! Is this how we treat veterans in this country? The only helpful person there was Alicia Cruz. I think she was a nurse. She intervened and suggested cooking the hot pocket in the over or an air fryer as these cooking methods will not interfere with the pacemaker. She also noted that cooking a hot pocket in a conventional oven or an air fryer will make a crispier crust. You are a true saint Alicia! God bless you, and God bless America!!

I had a very disappointing experience during my appointment on April 7th, 2025, with Dr. Andrew…read moreCheung, DO, at 200 Porter Dr, Suite #300, San Ramon, CA. From the moment I arrived, the medical assistant, who is blonde and works under Dr. Cheung, displayed aggressive, uninterested, and dismissive behavior that made me feel uncomfortable and frightened. The medical assistant never introduced herself or informed me that she would be administering a COVID test. Things only worsened during the COVID-19 testing. She simply told me to pull my mask down and said, "This isn't going to be fun." She never once mentioned that she would be doing a COVID test or a throat swab, and she didn't explain what tests would be run or why they were necessary. Her overly aggressive approach caused pain and injury when she inserted the nasal swab too deeply, causing bleeding. The throat swab was similarly forceful and painful. When taking my blood pressure, she failed to perform the procedure properly, inflating the cuff and then quickly removing it without obtaining an accurate reading. She never placed the stethoscope like one does when taking manual blood pressure. She also used the wrong size cuff, and instead of properly taking my blood pressure, getting the correct cuff size and recording the result, she fabricated the reading. The assistant was rude, rushed, and unprofessional, slamming doors behind her and showing no interest in my well-being. When the doctor arrived, he was kind and apologized, but the blood pressure reading issue was never corrected on the discharge form. Later, the doctor said the manager would come into speak with me, but after he left, the blonde medical assistant returned and confronted me in a very intimidating manner, asking, "Do we have a problem?" in a tone that felt confrontational. I was shaken by her approach, and instead of offering a genuine apology, she attempted to justify her rushed behavior, claiming she had to attend to another patient. Her response was dismissive and unprofessional. Her appearance back in the room frightened me, as the doctor had told me the manager would be in, not the medical assistant to confront me about my complaint about her. The practice manager, Vicky, dismissed my complaints, suggesting that I was simply having a "bad day," and minimized my experience, failing to acknowledge the serious issues I raised. The practice manager then seemed to defend the medical assistant as if they were friends, mentioning that the assistant had worked there for 15 years with no complaints, and that she herself was a medical assistant for 40 years. She even explained that she was just in a hurry. To which i replied, "they should not schedule me an appointment if they cant take the time to explain the procedure, or properly take my blood pressure, or even introduce themselves" this is no excuse, and there is no reason to rush. It only takes a few seconds to introduce yourself, and explain a procedure. I guess she was trying to justify there was nothing wrong with how i was treated by saying this? Didn't make sense how that was relevant in the moment, and raises more concerns about her lack of concern over her employees behavior towards a patient, given all of the experience she claims to have. This statement that the blonde medical assistant had no complaints in 15 years is false, as there are multiple reviews online with similar complaints about the same medical assistant, who works under Dr. Cheung, highlighting ongoing issues with her behavior and procedures. What's even more concerning is that this particular medical assistant has received negative reviews going back six years, with several patients complaining about similar mistreatment and her aggressive behaviors. It seems that the practice is not taking these complaints seriously, and the assistant's behavior continues to harm patients. Despite the doctor's kindness, the lack of professionalism from the assistant and the practice manager was disturbing. I was left feeling unheard and disrespected, especially disappointing in an institution like John Muir Health, which has a strong reputation. I sincerely hope the practice takes action to address these issues to prevent future patients from experiencing similar mistreatment. I also believe a reimbursement for this visit is warranted. Crazy to pay for care and then be treated this way. I hope no one else has to experience the mistreatment I received during my visit. People who display such unprofessional and aggressive behavior should not be working in the medical field. I sincerely hope John Muir Health takes this complaint seriously and takes action to ensure better care and professionalism in the future, especially for patients who are unable to advocate for themselves or who feel threatened and scared, as I did, by behavior like this.