Accepting new patients

Dr. John Nienow, MD

Infectious Disease Medicine •  Male • Age 59

  7 Reviews
Dr. Nienow

Haight and Ashbury Free Clinic

558 Clayton St San Francisco, CA 94117
Accepting new patients

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(415) 746-1950

Dr. John Nienow, MD is an infectious disease specialist in San Francisco, CA and has been practicing for 31 years. He graduated from Yale University in 1988 and specializes in infectious disease medicine.

At a Glance

  • Practices at top hospital America's 250 Best Hospitals Award™ See hospitals

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Dr. Nienow accepts

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(415) 746-1950

Dr. Nienow accepts the following insurance:

Aetna HMO
Choice Plus POS II
Blue Cross Blue Shield
Blue Card PPO
CaliforniaCare HMO
Blue Cross Blue Shield of California
Blue Cross Blue Shield of California HMO
Blue Cross Blue Shield of California PPO
Blue Shield of California
Local Access Plus HMO
Cigna HMO
Cigna PPO
Great West Healthcare-Cigna PPO
First Health (Coventry Health Care)
First Health (Coventry Health Care) PPO
Health Net
Health Net PPO
Medicare Advantage PFFS
Kaiser PHCS Network PPO
MultiPlan PPO
PHCS Network PPO
Choice Plus POS
Navigate HMO
Navigate POS
Options PPO
PacifiCare HMO

Background Check

No malpractice claims found for California
No disciplinary actions found for the years we collect data
No board actions found for the years we collect data
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Experience Check

Check if Dr. Nienow treats your condition or procedure

Dr. Nienow's conditions and procedures:

  • Allergies
  • Diabetes

Dr. Nienow's Reviews

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Based on 7 reviews

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Average Reported Wait Time
  • 16 – 30 minutes
Dr. Nienow's Performance
  • Trustworthiness
  • Explains condition(s) well
  • Answers questions
  • Time well spent
Office & Staff Performance
  • Scheduling
  • Office environment
  • Staff friendliness

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About Me

Care Philosophy

John brings extensive knowledge and expertise in the management of chronic viral diseases, including HIV and Hepatitis C, to One Medical Group. He puts the doctor-patient relationship at the forefront of his practice, spending time getting to know his patients in order to better understand how to treat their health issues.


  • Infectious Disease Medicine

Board Certifications


University Of Washington
Residency Hospital
University Of Washington
Internship Hospital
Yale University
Medical School


Affiliated Hospitals

Check the quality of care at hospitals where Dr. Nienow treats patients.

Learn more

66% Patient experience rating, 3% lower than the national average

  • America's 250 Best Hospitals Award™ (2018, 2017)
  • America's 250 Best Hospitals Award™ (2019, 2018, 2017)
  • Patient Safety Excellence Award™ (2017)