Dr. Ari Baron, MD

Dr. Ari Baron, MD

Oncology  ·  
Male  ·  
Age 55
Dr. Ari Baron, MD is an oncology specialist in San Francisco, CA and has been practicing for 21 years. He graduated from Tufts University School Of Medicine in 1990 and specializes in oncology.

2100 Webster St Ste 225

San Francisco, CA 94115

Contact Information

Insurance Accepted

  • Aetna
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield of California
  • Cigna
  • First Health (Coventry Health Care)
  • MultiPlan

*Please verify this information when scheduling an appointment.

Learn about Dr. Baron

Be confident in your decisions by checking out your provider's top areas of care, education, patient reviews and more. Learn about finding the right doctor for you.

Top Care Areas

See how frequently Dr. Baron performs your care needs compared to other doctors.

Anal and Rectal Cancer
very high
more than 98% of peers
Anal Disorders
very high
more than 98% of peers
Colorectal Cancer
very high
more than 98% of peers

Dr. Baron's percentages are based on the rate of treatment compared to peers nationwide from insurance data. Learn more info about our data and this Top Care Areas component.

1  Specialties

  • Oncology

1  Board Certifications

  • Medical Oncology
    Accredited by: American Board of Internal Medicine*

96  Conditions Treated

Read Less

4  Procedures

Background Check

0 Malpractice Claims

No malpractice history found for California.

0 Sanctions

No sanctions history found for the years that Healthgrades collects data.

0 Board Actions

No board actions found for the years that Healthgrades collects data.


  • Tufts University School Of Medicine
    Medical School | Graduated 1990
  • Ucsf Medical Center
    Internship Hospital | Completed 1991
  • Ucsf Medical Center
    Residency Hospital | Completed 1993
  • Ucsf Medical Center
    Fellowship Hospital | Completed 1997

Awards & Recognition

Awards & Honors
  • Healthgrades Honor Roll
Media & Publications

Dr. Baron has no media or publications listed.

Languages Spoken

  • English
  • French

Memberships & Professional Affiliations

Dr. Baron does not have any memberships or affiliations listed. If you are Dr. Baron and would like to add memberships or affiliations, please update your profile.

Dr. Baron's Reviews

Likelihood of recommending Dr. Baron to family and friends
7 total reviews (4 have comments)

Likelihood to Recommend (7)

  • 5
  • 4
  • 3
  • 2
  • 1

Dr. Baron's Performance

  • Trustworthiness

  • Explains condition(s) well

  • Answers questions

  • Time well spent


Office & Staff Performance

  • Scheduling

  • Office environment

  • Staff friendliness

  • Average wait time

    16 to 30 minutes

Patient Comments (4)

Unfortunately Dr. Baron can’t save everyone but he will try his hardest to save as many lives! He saved mine ?? Remember as a cancer patient you must be in charge of your care. also , Dr Baron has Super experienced-nursing staff to help too!
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17 years he's kept me going-- He is well read, stays current He's careful and thoughtful Washes his hands- and does an appropriate hands on physical exam every visit
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500 stars were this site to allow it. No nonsense science based treatment. Studies in which he has participated have been published in the highest ranked scholarly journals in the world. My cancer is especially aggressive and there was no approved treatment that offered much hope, so he...more
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Dr. Baron's insulation from patients can cause them pain. My sweetheart died under Dr. Baron's care. She began treatment with metastatic urothelial cancer, a fatal diagnosis. After two failed rounds of chemo and much suffering she began Tencentriq treatment which had extraordinarily severe side...more
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