Ann Mary Belek, MD
Rheumatology Physician · San Francisco, CA
Ann Mary Belek, MD is a rheumatology physician with a practice address in San Francisco, California, and NPI 1780841197, issued on May 22, 2008. Check the license (California A103125, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ann Mary Belek
- Credential
- MD
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- A103125 CA
Self-reported in NPPES; status is on the state search - Practice location
- 505 Parnassus Ave, San Francisco, CA 94143
- Phone
- (415) 476-1528
- Enumerated
- May 22, 2008
- Record last updated
- Dec 27, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (415) 502-1976
- Medicare enrollment
- Enrolled (PECOS I20110914000295); accepts Medicare assignment
- Medical or professional school
- University Of Kentucky College Of Medicine, 2006
- Entity
- Type 1 · individual
Also registered at 505 Parnassus Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Alexander Aabedi, MDStudent in an Organized Health Care Education/Training Program1245971480
- Kathryn Aaronson, RN, CPNPPediatric Nurse Practitioner1992030951
- Sharon AbadaStudent in an Organized Health Care Education/Training Program1003492844
- Abul Abbas, MBBSAnatomic Pathology Physician1881652964
- Jesse Abelson, MDInternal Medicine Physician1083843817
- Rhonald AbitonaAcute Care Nurse Practitioner1164993473
Verify Ann Mary Belek in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A103125Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
13% more Medicare Part D claims than the average rheumatology physician in 2024
2,241 Medicare Part D claims for 514 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. Brand-name drugs were 26% of claims.
Most prescribed
- Prednisone494 claims
- Methotrexate310 claims
- Hydroxychloroquine Sulfate286 claims
- Rasuvo140 claims
- Alendronate Sodium114 claims
- Meloxicam87 claims
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
- Permanente Medical Group IncStockton, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Rheumatology Physician providers in California
There are 926 rheumatology physician records in California.
Other rheumatology physician records in California
- Khurram Abbass, MDSan Jose, CA1154455178
- Mai Abdelnabi, MDSan Francisco, CA1013394980
- Brian Abe, MD, PHDStanford, CA1104262708
- Thomas Abel, MDMonte Sereno, CA1871679399
- Feruza AbraamyanRoseville, CA1124769278
- Thomas Adamson, M.D.San Diego, CA1639187057
- Sana Afroz, MDMoreno Valley, CA1356724074
- Ishita Aggarwal, MDSan Francisco, CA1518385699
- Atul Agrawal, MDAntioch, CA1528146016
- Bikramjit Ahluwalia, MDApple Valley, CA1669402467
Common questions
What is Ann Mary Belek, MD's NPI number?
Ann Mary Belek, MD's National Provider Identifier (NPI) is 1780841197, issued on May 22, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Ann Mary Belek, MD located?
The NPPES record lists a practice address at 505 Parnassus Ave, San Francisco, CA, 94143. Phone: (415) 476-1528. Providers update this record themselves, so call before visiting.
How can I verify Ann Mary Belek, MD's license?
NPPES lists California license number A103125, 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 Ann Mary Belek, MD prescribe under Medicare Part D?
In 2024, Ann Mary Belek, MD had 2,241 Medicare Part D claims for 514 beneficiaries; the average among rheumatology physician prescribers was 1,978. 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.
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.