Peter Thanhtung Nguyen, D.O.
Emergency Medicine Physician · Irvine, CA
Peter Thanhtung Nguyen, D.O. is an emergency medicine physician with a practice address in Irvine, California, and NPI 1871933366, issued on Jun 27, 2013. Check the license (California 20A14978, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Peter Thanhtung Nguyen
- Credential
- D.O.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- 20A14978 CA
OP70029432 WA
Self-reported in NPPES; status is on the state search - Practice location
- 1000 Fivepoint, Irvine, CA 92618
- Phone
- (888) 333-4673
- Enumerated
- Jun 27, 2013
- Record last updated
- Nov 24, 2025
- Medicare enrollment
- Enrolled (PECOS I20170616002298); accepts Medicare assignment
- Medical or professional school
- Arizona College Of Osteopathic Medicine Mid Western University, 2013
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 1000 Fivepoint
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mary Alessi, PA-CPhysician Assistant1962711838
- Tara Anderson, PA-CPhysician Assistant1770058349
- Aubree Ashdown, PA-CPhysician Assistant1679244503
- Ghazal Bahri, M.D.Hospitalist Physician1770013146
- Meg Camille Baldonado, FNP-CFamily Nurse Practitioner1346602604
- Joseph Barrera, FNPFamily Nurse Practitioner1306289491
Verify Peter Thanhtung Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A14978Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.2 times the Medicare Part D claims of the average emergency medicine physician in 2024
712 Medicare Part D claims for 557 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 30 claims were for opioids.
Most prescribed
- Cefadroxil138 claims
- Nitrofurantoin Mono-Macro133 claims
- Ciprofloxacin Hcl43 claims
- Ondansetron Odt35 claims
- Doxycycline Monohydrate34 claims
- Cephalexin23 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 3 group practices
- Cep America - CaliforniaGarden Grove, CA
- City OF Hope Medical FoundationIrvine, CA
- Franciscan Medical GroupIrvine, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Peter Thanhtung Nguyen among 7,751 emergency medicine physician records in California
Peter Thanhtung 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 2013, is newer than 66% of them.
- NPI issued2013 · 66% of these records are older, 31% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2013 · median 2011 among the 4,560 with a school on file
- Record last updated2025 · 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 Irvine → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Nicholas Bove, MDIrvine, CA 926181255837837
- Ahmed Elrefaie, M.D.Irvine, CA 926181578820155
- Stephen Gau, M.D.Irvine, CA 926181942640354
- Ryan Hurd, M.D.Irvine, CA 926181255377156
- Ethan Kunstadt, M.D.Irvine, CA 926181992167993
- Cong LyIrvine, CA 926181649456682
- Cassondra Majestic, M.D.Irvine, CA 926181538501705
- Karin Reed, M.D.Irvine, CA 926181649560913
Common questions
What is Peter Thanhtung Nguyen, D.O.'s NPI number?
Peter Thanhtung Nguyen, D.O.'s National Provider Identifier (NPI) is 1871933366, issued on Jun 27, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Peter Thanhtung Nguyen, D.O. located?
The NPPES record lists a practice address at 1000 Fivepoint, Irvine, CA, 92618. Phone: (888) 333-4673. Providers update this record themselves, so call before visiting.
How can I verify Peter Thanhtung Nguyen, D.O.'s license?
NPPES lists California license number 20A14978, 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 Peter Thanhtung Nguyen, D.O. prescribe under Medicare Part D?
In 2024, Peter Thanhtung Nguyen, D.O. had 712 Medicare Part D claims for 557 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.