Michael Tang, MD
Internal Medicine Physician · Winters, CA
Michael Tang, MD is an internal medicine physician with a practice address in Winters, California, and NPI 1912469446, issued on Apr 3, 2019. Check the license (California A182335, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Michael Tang
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- A182335 CA
35.143391 OH
Self-reported in NPPES; status is on the state search - Practice location
- 101 Main Street, Winters, CA 95694
- Phone
- (530) 334-7184
- Enumerated
- Apr 3, 2019
- Record last updated
- Sep 12, 2025
- Fax
- (530) 334-7186
- Medicare enrollment
- Enrolled (PECOS I20230524002641); accepts 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 →
Verify Michael Tang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A182335Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
36 Medicare Part D claims for 11 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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: $19.18
1 payment: food and beverage; the largest payer was Amgen 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 2 group practices
- Northbay Health Medical FoundationFairfield, CA
- Northbay Physicians Surgery Center, LLCWinters, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael Tang among 17,696 internal medicine physician records in California
Michael 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 2019, is newer than 86% of them.
- NPI issued2019 · 86% of these records are older, 11% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2019 · median 2004 among the 11,065 with a school on file
- Record last updated2025 · 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).
2 internal medicine physician records list a practice address in Winters
They are 2 of the 59 NPPES records with a practice address in Winters, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Winters → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Annemarie Hargadon, M.D.Winters, CA 956941679691497
- Alexander Chen, M.D.Woodland, CA 956951164537858
- Timothy Davis, D.O.Woodland, CA 956951477865053
- Amanpreet Kaur, M.D.Woodland, CA 956951811910672
- Syed Khasimuddin, M.D.Woodland, CA 956951720008212
- Monika Kraft, M.D.Woodland, CA 956951841206463
- Uma Kunda, M.D.Woodland, CA 956951225068943
- Chu Kwan Lau, MDWoodland, CA 956951164438933
Common questions
What is Michael Tang, MD's NPI number?
Michael Tang, MD's National Provider Identifier (NPI) is 1912469446, issued on Apr 3, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Michael Tang, MD located?
The NPPES record lists a practice address at 101 Main Street, Winters, CA, 95694. Phone: (530) 334-7184. Providers update this record themselves, so call before visiting.
How can I verify Michael Tang, MD's license?
NPPES lists California license number A182335, 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 Michael Tang, MD prescribe under Medicare Part D?
In 2024, Michael Tang, MD had 36 Medicare Part D claims for 11 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.