Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Megan Elizabeth O'Brien, MD

Individual provider Psychiatry Physician · NPI 1861029183

Megan Elizabeth O'Brien, MD is a Psychiatry in San Francisco, California. Graduated from Georgetown University School of Medicine in 2020, 6 years ago. Practices with University of California San Francisco, a 1,793-clinician group, works from 4 locations, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
6
Trained at
Georgetown University School of Medicine
Licensed in
CA
In the registry since
2020
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

675 18th St
San Francisco, CA 94143-4200
Phone: (415) 476-7000
Fax: (415) 476-7320
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 1801 Vicente St, San Francisco, CA 94116-2923 — (415) 681-3211
  • 401 Parnassus Ave, San Francisco, CA 94143-2211 — (415) 476-7527
  • 401 Parnassus Ave # 984, San Francisco, CA 94143-2211 — (415) 476-7527

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence 178997 (CA)

Record details

NPI number1861029183
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedMarch 25, 2020
Last updated in NPPESOctober 2, 2025
Certification dateOctober 2, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPSYCHIATRY
Medical schoolGEORGETOWN UNIVERSITY SCHOOL OF MEDICINE
Graduated 2020 (6 years in practice)
Group practice University Of California San Francisco — 1793 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations5 on file with Medicare

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