Lee Tat Chan, M.D.
Internal Medicine Physician · San Francisco, CA
Lee Tat Chan, M.D. is an internal medicine physician with a practice address in San Francisco, California, and NPI 1992728414, issued on Jul 25, 2006. Check the license (California A60670, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Lee Tat Chan
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A60670 CA
Self-reported in NPPES; status is on the state search - Practice location
- 416 16TH Ave, San Francisco, CA 94118
- Phone
- (415) 221-0177
- Enumerated
- Jul 25, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20040929001143); accepts Medicare assignment
- Medical or professional school
- Eastern Virginia Medical School, 1994
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 416 16TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Lee Tat Chan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A60670Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.4 times the Medicare Part D claims of the average internal medicine physician in 2024
7,663 Medicare Part D claims for 649 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 25 claims were for opioids.
Most prescribed
- Atorvastatin Calcium742 claims
- Amlodipine Besylate670 claims
- Simvastatin485 claims
- Metformin Hcl291 claims
- Losartan Potassium248 claims
- Metoprolol Succinate247 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: $3,105.43
144 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. 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.
Bills Medicare through one group practice
- Wellness Care Medical Group A Professional CorporationSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Lee Tat Chan among 17,696 internal medicine physician records in California
Lee Tat Chan, 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 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1994 · median 2004 among the 11,065 with a school on file
- Record last updated2007 · 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
- Nikola Bukurov, M.D.San Francisco, CA 941181861423279
- Randolph Chase, M.D.San Francisco, CA 941181063428225
- Catherine Collins, M.D.San Francisco, CA 941181346265790
- Robert Dobrow, MDSan Francisco, CA 941181356336051
- Joyce Hansen, M.D.San Francisco, CA 941181639190085
- Karen Khoo, MDSan Francisco, CA 941181629031430
- Eric Kwok, M.D.San Francisco, CA 941181447231618
- Stephen Lee, M.D.San Francisco, CA 941181053327288
Common questions
What is Lee Tat Chan, M.D.'s NPI number?
Lee Tat Chan, M.D.'s National Provider Identifier (NPI) is 1992728414, issued on Jul 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Lee Tat Chan, M.D. located?
The NPPES record lists a practice address at 416 16TH Ave, San Francisco, CA, 94118. Phone: (415) 221-0177. Providers update this record themselves, so call before visiting.
How can I verify Lee Tat Chan, M.D.'s license?
NPPES lists California license number A60670, 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 Lee Tat Chan, M.D. prescribe under Medicare Part D?
In 2024, Lee Tat Chan, M.D. had 7,663 Medicare Part D claims for 649 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.