Tuan Anh Nguyen, D.O.
Emergency Medicine Physician · Anaheim, CA
Tuan Anh Nguyen, D.O. is an emergency medicine physician with a practice address in Anaheim, California, and NPI 1861636037, issued on Apr 30, 2009. Check the license (California 20A11388, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Tuan Anh Nguyen
- Credential
- D.O.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- 20A11388 CA
11012792A IN
Self-reported in NPPES; status is on the state search - Practice location
- 3440 E LA Palma Ave, Anaheim, CA 92806
- Phone
- (714) 644-2000
- Enumerated
- Apr 30, 2009
- Record last updated
- Dec 2, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20110809000658); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 3440 E LA Palma Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Maria Abrantes, MDNeonatal-Perinatal Medicine Physician1861438889
- David Alvarez, MDDiagnostic Radiology Physician1255448924
- Marithel Arambulo, MSN RNC-OB PHNRegistered Nurse1174329551
- Salli AzizHospitalist Physician1841720604
- Ricardo Bardales MendozaInternal Medicine Physician1801103130
- Sharrise Boop, MSWSocial Worker1134643489
Verify Tuan Anh Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A11388Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
25% fewer Medicare Part D claims than the average emergency medicine physician in 2024
169 Medicare Part D claims for 134 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 41 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen38 claims
- Cefadroxil21 claims
- Ciprofloxacin Hcl13 claims
- Cephalexin12 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 GroupSanta Ana, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Tuan Anh Nguyen among 7,751 emergency medicine physician records in California
Tuan Anh Nguyen, D.O. is one of 7,751 emergency 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 2009, is newer than 54% of them.
- NPI issued2009 · 54% of these records are older, 42% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2005 · median 2011 among the 4,560 with a school on file
- Record last updated2021 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in California
There are 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in Anaheim → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Stephanie Chen, M.D.Anaheim, CA 928061669634432
- Cory Hata, DOAnaheim, CA 928061508136847
- Charles Lu, DOAnaheim, CA 928061104189414
- John McCoy, D.O.Anaheim, CA 928061730499336
- Chien Sun, M.D.Anaheim, CA 928061326153750
- Sean Wilson, MDAnaheim, CA 928061528320231
- Albert Aparicio, MDAnaheim, CA 928051336645852
- Robert Becker, MDAnaheim, CA 928071487725362
Common questions
What is Tuan Anh Nguyen, D.O.'s NPI number?
Tuan Anh Nguyen, D.O.'s National Provider Identifier (NPI) is 1861636037, issued on Apr 30, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Tuan Anh Nguyen, D.O. located?
The NPPES record lists a practice address at 3440 E LA Palma Ave, Anaheim, CA, 92806. Phone: (714) 644-2000. Providers update this record themselves, so call before visiting.
How can I verify Tuan Anh Nguyen, D.O.'s license?
NPPES lists California license number 20A11388, 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 Tuan Anh Nguyen, D.O. prescribe under Medicare Part D?
In 2024, Tuan Anh Nguyen, D.O. had 169 Medicare Part D claims for 134 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.