Win Mar Thi, M.D
Internal Medicine Physician · Bakersfield, CA
Win Mar Thi, M.D is an internal medicine physician with a practice address in Bakersfield, California, and NPI 1700274800, issued on Dec 26, 2014. Check the license (California 133519, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Win Mar Thi
- Credential
- M.D
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 133519 CA
Self-reported in NPPES; status is on the state search - Practice location
- 5055 California Ave Ste 300, Bakersfield, CA 93309
- Phone
- (661) 334-2009
- Enumerated
- Dec 26, 2014
- Record last updated
- Dec 8, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (877) 744-2842
- Medicare enrollment
- Enrolled (PECOS I20151013000968); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 5055 California Ave Ste 300
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Win Mar Thi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 133519Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% fewer Medicare Part D claims than the average internal medicine physician in 2024
375 Medicare Part D claims for 129 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 24 claims were for opioids.
Most prescribed
- Cefpodoxime Proxetil37 claims
- Pantoprazole Sodium24 claims
- Hydrocodone-Acetaminophen21 claims
- Prednisone19 claims
- Doxycycline Monohydrate17 claims
- Furosemide15 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.
Bills Medicare through one group practice
- Southern California Permanente Medical GroupBakersfield, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Win Mar Thi among 17,696 internal medicine physician records in California
Win Mar Thi, 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 2014, is newer than 74% of them.
- NPI issued2014 · 74% of these records are older, 24% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2006 · median 2004 among the 11,065 with a school on file
- 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).
214 internal medicine physician records list a practice address in Bakersfield
They are 214 of the 11,539 NPPES records with a practice address in Bakersfield, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Bakersfield → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Carlos Alvarez, MDBakersfield, CA 933091891805610
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- Russell Enoch, D.O.Bakersfield, CA 933091811009525
- Thin Han, M.D.Bakersfield, CA 933091356319826
- Joseph Hayes, D.O.Bakersfield, CA 933091083681498
- Rusong Huang, MDBakersfield, CA 933091598767949
- Ju Hwan Lee, MDBakersfield, CA 933091619969847
- Mark Lin, MDBakersfield, CA 933091528050754
Common questions
What is Win Mar Thi, M.D's NPI number?
Win Mar Thi, M.D's National Provider Identifier (NPI) is 1700274800, issued on Dec 26, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Win Mar Thi, M.D located?
The NPPES record lists a practice address at 5055 California Ave Ste 300, Bakersfield, CA, 93309. Phone: (661) 334-2009. Providers update this record themselves, so call before visiting.
How can I verify Win Mar Thi, M.D's license?
NPPES lists California license number 133519, 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 Win Mar Thi, M.D prescribe under Medicare Part D?
In 2024, Win Mar Thi, M.D had 375 Medicare Part D claims for 129 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.