Brian James Secemsky, M.D.
Internal Medicine Physician · San Francisco, CA
Brian James Secemsky, M.D. is an internal medicine physician with a practice address in San Francisco, California, and NPI 1790044519, issued on May 14, 2012. Check the license (California 128809, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Brian James Secemsky
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 128809 CA
Self-reported in NPPES; status is on the state search - Practice location
- 501 2ND St Ste 415, San Francisco, CA 94107
- Phone
- (415) 529-4567
- Enumerated
- May 14, 2012
- Record last updated
- May 20, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (415) 291-0489
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 501 2ND St Ste 415
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jhankhana Shah, MDFamily Medicine Physician1669542403
Verify Brian James Secemsky in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 128809Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average internal medicine physician in 2024
105 Medicare Part D claims for 17 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 30% of 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.
Industry payments in 2024: $155.55
2 payments; by number, the most common kind was food and beverage; the largest payer was ViiV Healthcare Company. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Brian James Secemsky among 17,696 internal medicine physician records in California
Brian James Secemsky, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 68% of them.
- NPI issued2012 · 68% of these records are older, 29% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2021 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,318 internal medicine physician records list a practice address in San Francisco
They are 1,318 of the 38,143 NPPES records with a practice address in San Francisco, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in San Francisco → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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- Tiffany Kenison, MDSan Francisco, CA 941071841684776
- Emily LawSan Francisco, CA 941071962882811
- Dawn Malter, M.D., PH.D.San Francisco, CA 941071780062844
- Anuruddh Misra, MDSan Francisco, CA 941071619177227
Common questions
What is Brian James Secemsky, M.D.'s NPI number?
Brian James Secemsky, M.D.'s National Provider Identifier (NPI) is 1790044519, issued on May 14, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Brian James Secemsky, M.D. located?
The NPPES record lists a practice address at 501 2ND St Ste 415, San Francisco, CA, 94107. Phone: (415) 529-4567. Providers update this record themselves, so call before visiting.
How can I verify Brian James Secemsky, M.D.'s license?
NPPES lists California license number 128809, 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 Brian James Secemsky, M.D. prescribe under Medicare Part D?
In 2024, Brian James Secemsky, M.D. had 105 Medicare Part D claims for 17 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.