Willie Tang, MD
Internal Medicine Physician · Larkspur, CA
Willie Tang, MD is an internal medicine physician with a practice address in Larkspur, California, and NPI 1215513890, issued on Mar 23, 2021. Check the license (California A193256, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Willie Tang
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A193256 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1100 Larkspur Landing Cir Ste 10, Larkspur, CA 94939
- Phone
- (415) 924-1214
- Enumerated
- Mar 23, 2021
- Record last updated
- Jun 19, 2024
- Medicare enrollment
- Enrolled (PECOS I20240904000981); may accept Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 1100 Larkspur Landing Cir Ste 10
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Injil Abubakar, MDFamily Medicine Physician1013095041
- Saba Bagewadi, M.D.Pediatrics Physician1588059059
- Anjuli Brighton, MDPulmonary Disease Physician1407110588
- Robert DorisInternal Medicine Physician1528647096
- Grace Fong, D.O.Family Medicine Physician1952559585
- Maria Garcia-Ball, RNFamily Nurse Practitioner1972987519
Verify Willie Tang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A193256Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average internal medicine physician in 2024
119 Medicare Part D claims for 74 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 12 claims were for opioids.
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: $125.00
2 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Pharmaceuticals, Inc. 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
- Regents Univ OF California UcsfSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Willie Tang among 17,696 internal medicine physician records in California
Willie Tang, MD 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 2021, is newer than 92% of them.
- NPI issued2021 · 92% of these records are older, 5% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2021 · median 2004 among the 11,065 with a school on file
- Record last updated2024 · 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).
7 internal medicine physician records list a practice address in Larkspur
They are 7 of the 291 NPPES records with a practice address in Larkspur, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Larkspur → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Alaric Akashi, MDLarkspur, CA 949391285784264
- Katherine Chick, M.DLarkspur, CA 949391386855567
- Robert DorisLarkspur, CA 949391528647096
- Marvin Freid, M.D.Larkspur, CA 949391639602923
- Rosalind Hudson, M.D.Larkspur, CA 949391528122900
- Oana Klein, MDLarkspur, CA 949391427240647
- Holly Batterman, M.D.Mill Valley, CA 949411124138276
- Kathy Chang-Lipsenthal, MDMill Valley, CA 949411356340079
Common questions
What is Willie Tang, MD's NPI number?
Willie Tang, MD's National Provider Identifier (NPI) is 1215513890, issued on Mar 23, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Willie Tang, MD located?
The NPPES record lists a practice address at 1100 Larkspur Landing Cir Ste 10, Larkspur, CA, 94939. Phone: (415) 924-1214. Providers update this record themselves, so call before visiting.
How can I verify Willie Tang, MD's license?
NPPES lists California license number A193256, 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 Willie Tang, MD prescribe under Medicare Part D?
In 2024, Willie Tang, MD had 119 Medicare Part D claims for 74 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.