Thuy-An Tran, MD
Internal Medicine Physician · Oakland, CA
Thuy-An Tran, MD is an internal medicine physician with a practice address in Oakland, California, and NPI 1760919021, issued on May 17, 2017. Check the license (California A160148, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Thuy-An Tran
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A160148 CA
Self-reported in NPPES; status is on the state search - Practice location
- 835 Webster St, Oakland, CA 94607
- Phone
- (510) 318-5800
- Enumerated
- May 17, 2017
- Record last updated
- Jul 27, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (510) 986-8681
- Medicare enrollment
- Enrolled (PECOS I20200825000293); accepts Medicare assignment
- Medical or professional school
- Icahn School Of Medicine At Mount Sinai, 2017
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 835 Webster St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nhat Bui, AGNPNurse Practitioner1457807588
- Clara ChenGeriatric Medicine (Internal Medicine) Physician1336883024
- Li Jun Chen, REGISTERED NURSERegistered Nurse1629612239
- Yuk Pui ChingRegistered Nurse1316594443
- Heidi ChiuRegistered Nurse1710742580
- David HoangCommunity Health Worker1407597057
Verify Thuy-An Tran in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A160148Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
33% more Medicare Part D claims than the average internal medicine physician in 2024
4,231 Medicare Part D claims for 460 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 19 claims were for opioids.
Most prescribed
- Atorvastatin Calcium371 claims
- Losartan Potassium270 claims
- Amlodipine Besylate231 claims
- Famotidine168 claims
- Metformin Hcl155 claims
- Jardiance130 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
- Asian Health ServicesOakland, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Thuy-An Tran among 17,696 internal medicine physician records in California
Thuy-An Tran, 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 2017, is newer than 81% of them.
- NPI issued2017 · 81% of these records are older, 16% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2017 · median 2004 among the 11,065 with a school on file
- Record last updated2020 · 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).
432 internal medicine physician records list a practice address in Oakland
They are 432 of the 18,558 NPPES records with a practice address in Oakland, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Oakland → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Marilyn Ancel, MDOakland, CA 946071295813087
- Clayton Chan, MDOakland, CA 946071972682037
- Stewart Fong, MDOakland, CA 946071659459436
- Xiaoguang Huang, M.D., PHD.Oakland, CA 946071235179870
- Susan Mei Huang, MDOakland, CA 946071093894032
- Dennis Ing, MDOakland, CA 946071477631257
- Anthony Iton, M.D.Oakland, CA 946071609961101
- Nicola Longmuir, MDOakland, CA 946071710065511
Common questions
What is Thuy-An Tran, MD's NPI number?
Thuy-An Tran, MD's National Provider Identifier (NPI) is 1760919021, issued on May 17, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Thuy-An Tran, MD located?
The NPPES record lists a practice address at 835 Webster St, Oakland, CA, 94607. Phone: (510) 318-5800. Providers update this record themselves, so call before visiting.
How can I verify Thuy-An Tran, MD's license?
NPPES lists California license number A160148, 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 Thuy-An Tran, MD prescribe under Medicare Part D?
In 2024, Thuy-An Tran, MD had 4,231 Medicare Part D claims for 460 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.