Ho Tsuan Tan, M.D.
Adult Medicine Physician · San Francisco, CA
Ho Tsuan Tan, M.D. is an adult medicine physician with a practice address in San Francisco, California, and NPI 1285737692, issued on Sep 7, 2006. Check the license (California A32071, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ho Tsuan Tan
- Credential
- M.D.
- Primary taxonomy
- Adult Medicine Physician 207QA0505X
- License number
- A32071 CA
Self-reported in NPPES; status is on the state search - Practice location
- 919 Clay St, San Francisco, CA 94108
- Phone
- (415) 781-8881
- Enumerated
- Sep 7, 2006
- Record last updated
- Jun 9, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (415) 781-5118
- Medicare enrollment
- Enrolled (PECOS I20100826000246); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest adult medicine physician records → All 386 in California → Look up another NPI →
Also registered at 919 Clay St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jerome Jew, M.D.Internal Medicine Physician1235143702
Verify Ho Tsuan Tan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A32071Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4% fewer Medicare Part D claims than the average adult medicine physician in 2024
2,879 Medicare Part D claims for 282 beneficiaries, against an average of 3,002 among the 1,307 providers of this specialty who prescribed in Part D. 11 claims were for opioids.
Most prescribed
- Atorvastatin Calcium262 claims
- Celecoxib182 claims
- Metoprolol Succinate154 claims
- Lidocaine147 claims
- Jardiance121 claims
- Losartan Potassium114 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: $87.83
4 payments; by number, the most common kind was food and beverage; the largest payer was Ironwood Pharmaceuticals, Inc. The 664 providers of this specialty with any payment received $1,405.95 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.
Ho Tsuan Tan among 386 adult medicine physician records in California
Ho Tsuan Tan, M.D. is one of 386 adult medicine physician records with a practice address in California. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 3% of them.
- NPI issued2006 · 3% of these records are older, 65% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileYes · 48% of these records are
- Graduated1963 · median 2005 among the 187 with a school on file
- Record last updated2020 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207QA0505X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Adult Medicine Physician providers in California
There are 386 adult medicine physician records in California.
All 386 in California → Every provider in San Francisco → Adult Medicine Physician nationwide →
The 8 adult medicine physician records with the nearest ZIP codes
- Ricardo Alvarez, MDSan Francisco, CA 941101649352626
- Mary Beasley, L.V.N.San Francisco, CA 941101346388642
- David Pepper, MDSan Francisco, CA 941101881776896
- Juan Posada, M.D.San Francisco, CA 941101265496301
- Joel Samuels, MDSan Francisco, CA 941101225314487
- Lynne Lazarus, MDSan Francisco, CA 941051154471969
- Jessica Dejarnette, M.D.San Francisco, CA 941031881952406
- Jodi Baptiste, M.D.San Francisco, CA 941141508866153
Common questions
What is Ho Tsuan Tan, M.D.'s NPI number?
Ho Tsuan Tan, M.D.'s National Provider Identifier (NPI) is 1285737692, issued on Sep 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ho Tsuan Tan, M.D. located?
The NPPES record lists a practice address at 919 Clay St, San Francisco, CA, 94108. Phone: (415) 781-8881. Providers update this record themselves, so call before visiting.
How can I verify Ho Tsuan Tan, M.D.'s license?
NPPES lists California license number A32071, 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 Ho Tsuan Tan, M.D. prescribe under Medicare Part D?
In 2024, Ho Tsuan Tan, M.D. had 2,879 Medicare Part D claims for 282 beneficiaries; the average among adult medicine physician prescribers was 3,002. 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.