1. John Nienow, MD

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John Nienow, MD

3.8 (26 reviews)
Open • 8:00 am - 6:00 pm

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1 year ago

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2 years ago

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1 year ago

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2 years ago

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1 year ago

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2 years ago

Slow to respond. No empathy. No help. Virtually ignores your condition and complaints. I don't know how this office retains clients.

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5 years ago

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5 years ago

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5 years ago

Dr. Nienow is now at Strategic Wellness - 2300 California St. 415-202-1550. He took over the practice of my old doctor, Gary Feldman.

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11 years ago

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14 years ago

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12 years ago

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11 years ago

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11 years ago

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14 years ago

I would highly recommend Dr. Nienow (and have to many friends). He's punctual, very well informed, and a great physician.

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11 years ago

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12 years ago

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11 years ago

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10 years ago

WHERE IS HE NOW? He is my PCP and I have not been able to find him since he left One Medical. Anyone with info, please share. Thanks!

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10 years ago

If anyone knows where this fabulous physician and human being is, please let all of us who obviously miss his care know! Hope all is well.

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13 years ago

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13 years ago

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12 years ago

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14 years ago

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11 years ago

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Ask the Community - John Nienow, MD

Review Highlights - John Nienow, MD

“Nienow I know he will take great care of me, that means a lot after fighting HIV for 42 years.”

Mentioned in 13 reviews

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Jenny-Viva Collisson, MD

5.0(9 reviews)
3.0 km•Lower Pacific Heights

Dr. Collisson has definitely changed my life and arguably saved it…read more I've gone from life-threatening crisis to full recovery over the last year and a half. After 6 years of misdiagnosis and over-medication I was suffering from extreme chronic illness both physically and mentally. I came to her on at least 8 long-term medications, disabled and in total crisis. Through detailed testing, attentive personal conversations and her connecting and coordinating with my other specialists, Dr. Collisson pieced together the wicked puzzle that eluded at least a dozen prior doctors. I am no longer disabled at all. She empowered me to finally understand and control my own health. Today I feel healthier and stronger than I was in my 20s. I've only maintained one of the 8 medications and I've reduced the dose. I'm on one new permanent medication, but it's making a clearly understood and observable improvement to my health. I can't thank her enough! ...It's no small wonder that she is so over-subscribed and unable to accept new patients.

Dr. Collisson is an exceptional physician whose focus is mind-body healing. She works with people…read moreseeking healthier lifestyles, including patients wishing to overcome sleep issues, improve diet, and/or manage stress more effectively. She works with individuals to discover the root causes of the situation and to find a holistic approach to healing. Not only is Dr. Collisson a great listener, but she is an incredibly intuitive person who is sincerely interested in one's well-being. Her process of learning about me and my lifestyle is very organic; conversation is very relaxed and never feels forced. She has a fantastic sense of humor, too, which helps to maintain a sense of balance in discussions. I like that she is dedicated to spending an entire hour with you each time, to maximize the outcomes of the visit (unlike most doctors I've been to, I never feel rushed). She is very good at piecing together aspects of one's life and using that information for individualized treatment. Going to Dr. Collisson is the best decision I've ever made in terms of my health, and I absolutely recommend her to anyone looking for an integrative medicine specialist.

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Jenny-Viva Collisson, MD
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Melissa Wong, MD

Melissa Wong, MD

4.1(11 reviews)
4.1 km•Outer Sunset

Dr Wong is the best family medicine doctor I've ever had - and that's saying a lot considering that…read moreI've moved more than 10 times in the past 10 years. She has a great background/training and takes a very measured approach with her diagnoses - everything she's recommended has worked. She's also incredibly friendly yet exhibits the highest level of professionalism and is very approachable/disarming, which are really good qualities to have for an OB/GYN. Altogether very good bedside manner. Lastly you can always get an appointment with 2 days notice. That said she does have two offices - one in Chinatown that she goes to T/Th and one in the Sunset that she goes to M/W/F, so that could be helpful for some!

Candid and Knowledgeable Doctor + In network for pretty much every insurance provider + Decent…read moreChinatown location (and another in Sunset) + Appointments via ZocDoc = Awesome annual checkup spot Decided to change it up from seeing another ugly old white dude for my annual, and was very pleasantly surprised. Dr. Wong is way more current on her stuff than most doctors I've met with, she was able to address all my concerns without confusing me, and she corrected a lot of bad habits. She wasn't a stickler for scripts that I needed, and she gave me really good lifestyle pointers I never thought about. The building is pretty Spartan and very... Chinatown Medical Office, but Dr. Wong's office is very clean and spacious, with a huge waiting room + in-suite bathroom. It has a unique Chinatown charm in an east meets west kind of way! There's also quest lab in the building. Her Yelp reviews are buried in other previous practices, she operates in 2 locations- this one and another in Sunset. I found her via ZocDoc where she has a really long list of praises from her past patients. She was definitely that really smart kid in class everyone expected to end up a doctor, you can tell she's super sharp when you talk to her.

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Melissa Wong, MD - Tv in waiting area

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Melissa Wong, MD - Front desk area

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Waiting room view

Circle Medical

Circle Medical

3.3(383 reviews)
4.7 km•SoMa

I've been a circle medical virtual patient for 5 months now. I've seen my medical provider a total…read moreof 3 times. It's very convenient for me to schedule an appointment that works with my schedule. My PCP does a great job at checking up on my medical needs thoroughly checking my medical history and caring about my urgent medical conditions. I typically do a lab test and my PCP summarizes the results. The circle medical mobile app is awesome because it makes it easy to pay my bill, contact my PCP, request an appointment and see my lab results. Although, It is sometimes buggy when it comes to video calls and refuses to connect the call.

I have now called, and messaged on the app over a dozen times, including providing my full bank…read morestatement history, and a note from my bank itself, and I continue to not be refunded the $500 owed from appointments that were double paid by me and insurance. The online representatives just continue to state that it has been refunded without reviewing the evidence I've provided that it has not been. Can you please escalate this to have a representative work to actually resolve this? I don't know what to do other than small claims court at this point because I need this money to pay for my healthcare, especially with my recent purchase of a wheelchair. As a chronically ill, disabled person, it is taking energy I don't have to keep fighting for money that is not Circle Medical's to keep. I love my doctor, but don't want to continue to use Circle Medical if it means putting my money at risk and dealing with so much unnecessary stress.

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Circle Medical
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John Nienow, MD - familydr - Updated October 2026

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