NPPES file of Aug 9, 2026

Anna Buchsbaum, M.D.

Obstetrics & Gynecology Physician · San Francisco, CA

Anna Buchsbaum, M.D. is an obstetrics & gynecology physician with a practice address in San Francisco, California, and NPI 1689806317, issued on Aug 13, 2009. Check the license (California A107516, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1689806317
Name
Anna Buchsbaum
Credential
M.D.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
A107516 CA
Self-reported in NPPES; status is on the state search
Practice location
1100 Van Ness Ave FL 4, San Francisco, CA 94109
Phone
(415) 750-7050
Enumerated
Aug 13, 2009
Record last updated
Dec 17, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(415) 369-1389
Medicare enrollment
Enrolled (PECOS I20140602000223); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1100 Van Ness Ave FL 4

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Gabriella Brown, MS, LCGCGenetic Counselor (M.S.)1326026873
  2. Elena Burbridge, RD, CDERegistered Dietitian1841804259
  3. John Chan, MDGynecologic Oncology Physician1962596551
  4. Lejla Delic, M.D.Gynecologic Oncology Physician1063615185
  5. Jessica Fisher, FNP-CFamily Nurse Practitioner1326875550
  6. Eva Gabor-Fourcade, CGCGenetic Counselor (M.S.)1053909622

Verify Anna Buchsbaum in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A107516    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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85% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

24 Medicare Part D claims for 12 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.

  1. Anna Buchsbaum24
  2. Specialty average165

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Permanente Medical Group IncSan Francisco, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Obstetrics & Gynecology Physician providers in California

There are 5,088 obstetrics & gynecology physician records in California.

All 5,088 in California → Every provider in San Francisco →

Other obstetrics & gynecology physician records in California

  1. Ingrid Aalami, MDSan Jose, CA1952376550
  2. Avisa Abaian- Eagar, M.D.Orange, CA1316057755
  3. Derek Abbassi, MDWalnut Creek, CA1841364155
  4. Ahmed Abdelaziz, MDSanta Maria, CA1790039733
  5. Alireza Abdollah Shamshirsaz, M.D.Palo Alto, CA1881804235
  6. Nicole Abell, DOVentura, CA1811243603
  7. Zachary AbelsonLos Angeles, CA1689237414
  8. Ray Abinader, M.D.Loma Linda, CA1770901548
  9. Tarek Abou El Kheir, M.D.San Bernardino, CA1477521789
  10. Nada Abou-HaibaLos Angeles, CA1134067549

Common questions

What is Anna Buchsbaum, M.D.'s NPI number?

Anna Buchsbaum, M.D.'s National Provider Identifier (NPI) is 1689806317, issued on Aug 13, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Anna Buchsbaum, M.D. located?

The NPPES record lists a practice address at 1100 Van Ness Ave FL 4, San Francisco, CA, 94109. Phone: (415) 750-7050. Providers update this record themselves, so call before visiting.

How can I verify Anna Buchsbaum, M.D.'s license?

NPPES lists California license number A107516, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Anna Buchsbaum, M.D. prescribe under Medicare Part D?

In 2024, Anna Buchsbaum, M.D. had 24 Medicare Part D claims for 12 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.