Dr. John Mendelson, MD
Internist
OH
At a glance
Accepts 21 insurances
Aetna, Anthem Blue Cross, BlueCross BlueShield, Cigna, UnitedHealthcare, more+ ·
Has 20+ years of experience
Graduated from University of California, San Francisco, Doctor of Medicine
Works at Ria Health
38 office locations
Speaks English
John Mendelson does not participate in Zocdoc to offer online booking at this time
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In-network insurances
Aetna
BlueCross BlueShield
Cigna
UnitedHealthcare
Aetna
BlueCross BlueShield
Cigna
UnitedHealthcare
More about Dr. John Mendelson, MD
Dr. John Mendelson is a Board Certified Internist with over 30 years of research and practice in addiction treatment. He earned his Doctor of Medicine from the University of California, San Francisco (UCSF), after completing undergraduate studies at Antioch College. He completed both his internship and residency in Internal Medicine at Highland Hospital. In addition to being Ria Health’s Founder and Chief Medical Officer, he currently serves as Clinical Professor of Medicine at UCSF and maintains a private practice.
Dr. Mendelson is deeply committed to evidence-based addiction treatment and has dedicated much of his career to researching new options and expanding access. He was Medical Director of the Drug Dependence Research Center at UCSF from 1991 to 2007 and Founder and Director of the Addiction and Pharmacology Research Laboratory at California Pacific Medical Center from 2004 to 2016. More recently, he served as Senior Research Scientist at Friends Research Institute.
His work has been widely published, earning him international recognition as an expert in addiction medicine.
Alongside research, Dr. Mendelson has maintained a strong commitment to direct patient care. He has worked with patients in his private practice for decades and recently served as Medical Director of BAART (Bay Area Addiction Research and Treatment), overseeing five opioid treatment clinics in San Francisco treating approximately 3,500 patients daily.
Dr. Mendelson has profound empathy for individuals struggling with substance abuse. He founded Ria Health (formerly DxRx) in 2015, driven by the conviction that patients deserve safe, effective, and affordable treatment for alcohol use disorder. He believes success should be measured by scientific data and that tools such as medication and recovery coaching should be accessible to all who need them. My goal is to provide comprehensive, compassionate care tailored to each individual's unique needs.
Education & experience
Education
Medical School - University of California, San Francisco, Doctor of Medicine
Antioch College (Bachelor's)
Highland Hospital, Residency in Internal Medicine
Highland Hospital, Internship in Internal Medicine
Practice
Ria Health
Certifications
American Board of Internal Medicine
Professional memberships
American Society of Addiction Medicine
Research Society on Alcoholism
American Society for Clinical Pharmacology and Therapeutics
Background
Languages spoken
English
Gender
Male
NPI number
#1891889341
John Mendelson does not participate in Zocdoc to offer online booking at this time
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Dr. Terence Ching, PhD
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Patient reviews
All reviews have been submitted by patients after interacting with the practice.
Overall rating
1.00
Wait time
1.00
Bedside manner
3.00
Your trust is our top concern, so providers can't pay to alter or remove reviews. We also don't publish reviews that contain any private patient health information. Learn more here
1 review
Most relevant
Never heard anything from this provider.
April 9, 2025Heather E.Verified patientVideo visit
What practice does Dr. John Mendelson work with?
Dr. John Mendelson works with Ria Health.
Which board certifications does Dr. John Mendelson have?
Dr. John Mendelson is certified by American Board of Internal Medicine.
What languages does Dr. John Mendelson speak?
Dr. John Mendelson speaks English.
How do patients rate Dr. John Mendelson in reviews?
1 patients have reviewed Dr. John Mendelson. The overall rating for this doctor is 1/5. They have a 3/5 rating for bedside manner and a 1/5 rating for wait time. You can read individual reviews and ratings on their profile.