Dillon N. Tran, D.O., F.A.C.O.F.P.
Family Medicine Physician · Westminster, CA
Dillon N. Tran, D.O., F.A.C.O.F.P. is a family medicine physician with a practice address in Westminster, California, and NPI 1619248903, issued on Jan 19, 2012. Check the license (California 20A12056, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Dillon N. Tran
- Credential
- D.O., F.A.C.O.F.P.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 20A12056 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9191 Bolsa Ave, Westminster, CA 92683
- Phone
- (714) 897-3300
- Enumerated
- Jan 19, 2012
- Record last updated
- Jun 10, 2013 (not updated in 13 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20120529000511); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 9191 Bolsa Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Thuy Luu, MDGeneral Practice Physician1457301723
- Tam Nguyen, O.D.Optometrist1346366093
- Thuy Nguyen, MS,L.ACAcupuncturist1528131471
- Khanh Pham, MDFamily Medicine Physician1437160439
Verify Dillon N. Tran in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A12056Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% more Medicare Part D claims than the average family medicine physician in 2024
6,345 Medicare Part D claims for 249 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.
Most prescribed
- Losartan Potassium421 claims
- Amlodipine Besylate385 claims
- Jardiance260 claims
- Pravastatin Sodium259 claims
- Metformin Hcl243 claims
- Metoprolol Succinate185 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: $25.17
1 payment: food and beverage; the largest payer was Lilly USA, LLC. The 55,478 providers of this specialty with any payment received $902.55 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
- Family Choice Aco IncWestminster, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Dillon N. Tran among 17,133 family medicine physician records in California
Dillon N. Tran, D.O., F.A.C.O.F.P. is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 66% of them.
- NPI issued2012 · 66% of these records are older, 32% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2009 · median 2005 among the 10,652 with a school on file
- Record last updated2013 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
37 family medicine physician records list a practice address in Westminster
They are 37 of the 1,306 NPPES records with a practice address in Westminster, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Westminster → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Thuy Bui, MDWestminster, CA 926831619990587
- Chung Bui, M.D.Westminster, CA 926831427143072
- Dinh Dinh, DOWestminster, CA 926831972600856
- Jason Hart, M.D.Westminster, CA 926831780614602
- Jamie Lewis, M.D.Westminster, CA 926831073584173
- Diane Nguyen, MDWestminster, CA 926831225065428
- Gary Ohashi, M.D.Westminster, CA 926831417928516
- Trung Pham, M.D.Westminster, CA 926831851355101
Common questions
What is Dillon N. Tran, D.O., F.A.C.O.F.P.'s NPI number?
Dillon N. Tran, D.O., F.A.C.O.F.P.'s National Provider Identifier (NPI) is 1619248903, issued on Jan 19, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Dillon N. Tran, D.O., F.A.C.O.F.P. located?
The NPPES record lists a practice address at 9191 Bolsa Ave, Westminster, CA, 92683. Phone: (714) 897-3300. Providers update this record themselves, so call before visiting.
How can I verify Dillon N. Tran, D.O., F.A.C.O.F.P.'s license?
NPPES lists California license number 20A12056, 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 Dillon N. Tran, D.O., F.A.C.O.F.P. prescribe under Medicare Part D?
In 2024, Dillon N. Tran, D.O., F.A.C.O.F.P. had 6,345 Medicare Part D claims for 249 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.