Douglas A. Tran, MD
Otolaryngology Physician · Fountain Valley, CA
Douglas A. Tran, MD is an otolaryngology physician with a practice address in Fountain Valley, California, and NPI 1922003623, issued on Jun 17, 2005. Check the license (California G42263, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Douglas A. Tran
- Credential
- MD
- Primary taxonomy
- Otolaryngology Physician 207Y00000X
- License number
- G42263 CA
Self-reported in NPPES; status is on the state search - Practice location
- 10760 Warner Avenue, Fountain Valley, CA 92708
- Phone
- (714) 593-5356
- Enumerated
- Jun 17, 2005
- Record last updated
- Jan 8, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (714) 593-5366
- Medicare enrollment
- Enrolled (PECOS I20110829000188); accepts Medicare assignment
- Medical or professional school
- University Of California, Irvine, California College Of Medicine, 1979
- Entity
- Type 1 · individual
8 nearest otolaryngology physician records → All 1,212 in California → Look up another NPI →
Also registered at 10760 Warner Avenue
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Thanh Nguyen, M.D.Otolaryngology Physician1508862061
Verify Douglas A. Tran in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G42263Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average otolaryngology physician in 2024
29 Medicare Part D claims, against an average of 541 among the 8,339 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: $526.28
1 payment: education; the largest payer was W. L. Gore & Associates, Inc. The 6,429 providers of this specialty with any payment received $1,922.50 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
- Douglas A Tran MD IncFountain Valley, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Douglas A. Tran among 1,212 otolaryngology physician records in California
Douglas A. Tran, MD is one of 1,212 otolaryngology physician records with a practice address in California. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 93% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated1979 · median 2004 among the 818 with a school on file
- Record last updated2015 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Y00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Otolaryngology Physician providers in California
There are 1,212 otolaryngology physician records in California.
All 1,212 in California → Every provider in Fountain Valley → Otolaryngology Physician nationwide →
The 8 otolaryngology physician records with the nearest ZIP codes
- Tam Bui, M.D.Fountain Valley, CA 927081215937859
- Cyril Mahood, MDFountain Valley, CA 927081598762742
- Thanh Nguyen, M.D.Fountain Valley, CA 927081508862061
- Veeral Patel, MDFountain Valley, CA 927081790284347
- Avrum Kaufman, DOLadera Ranch, CA 926941093863722
- Michael Cho, MDMission Viejo, CA 926911750313508
- Michelle Lee, MDMission Viejo, CA 926911396322673
- Quang Luu, MDMission Viejo, CA 926911861528663
Common questions
What is Douglas A. Tran, MD's NPI number?
Douglas A. Tran, MD's National Provider Identifier (NPI) is 1922003623, issued on Jun 17, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Douglas A. Tran, MD located?
The NPPES record lists a practice address at 10760 Warner Avenue, Fountain Valley, CA, 92708. Phone: (714) 593-5356. Providers update this record themselves, so call before visiting.
How can I verify Douglas A. Tran, MD's license?
NPPES lists California license number G42263, 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 Douglas A. Tran, MD prescribe under Medicare Part D?
In 2024, Douglas A. Tran, MD had 29 Medicare Part D claims; the average among otolaryngology physician prescribers was 541. 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.