Peter Trong Ngoc Nguyen, DO
Otolaryngology/Facial Plastic Surgery Physician · Fountain Valley, CA
Peter Trong Ngoc Nguyen, DO is an otolaryngology/facial plastic surgery physician with a practice address in Fountain Valley, California, and NPI 1538240734, issued on Oct 17, 2006. Check the license (California 20A9575, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Peter Trong Ngoc Nguyen
- Credential
- DO
- Primary taxonomy
- Otolaryngology/Facial Plastic Surgery Physician 207YX0905X
- License number
- 20A9575 CA
Self-reported in NPPES; status is on the state search - Practice location
- 18111 Brookhurst St Ste 5400, Fountain Valley, CA 92708
- Phone
- (714) 378-5577
- Enumerated
- Oct 17, 2006
- Record last updated
- Jan 28, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (714) 378-5578
- Medicare enrollment
- Enrolled (PECOS I20070705000345); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest otolaryngology/facial plastic surgery physician records → All 119 in California → Look up another NPI →
Verify Peter Trong Ngoc Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A9575Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
39% more Medicare Part D claims than the average otolaryngology/facial plastic surgery physician in 2024
766 Medicare Part D claims for 220 beneficiaries, against an average of 550 among the 650 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 48 claims were for opioids.
Most prescribed
- Fluticasone Propionate234 claims
- Levothyroxine Sodium81 claims
- Ipratropium Bromide69 claims
- Cephalexin42 claims
- Tramadol Hcl40 claims
- Omeprazole29 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.
Peter Trong Ngoc Nguyen among 119 otolaryngology/facial plastic surgery physician records in California
Peter Trong Ngoc Nguyen, DO is one of 119 otolaryngology/facial plastic surgery physician records with a practice address in California. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 47% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated2001 · median 1999 among the 67 with a school on file
- Record last updated2021 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207YX0905X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Otolaryngology/Facial Plastic Surgery Physician providers in California
There are 119 otolaryngology/facial plastic surgery physician records in California.
All 119 in California → Every provider in Fountain Valley → Otolaryngology/Facial Plastic Surgery Physician nationwide →
The 8 otolaryngology/facial plastic surgery physician records with the nearest ZIP codes
- Maansi Doshi, DOSan Clemente, CA 926721376842997
- Alexis Furze, MD, FACSNewport Beach, CA 926631447453048
- Timothy Kelley, MDNewport Beach, CA 926631871528802
- H. Brennan, M.D.Newport Beach, CA 926601558396895
- Steven Daines, M.D.Newport Beach, CA 926601982876041
- Esrafil Abedi, MDLaguna Hills, CA 926531093794604
- Cory Yeh, M.D.Laguna Woods, CA 926371861601999
- Norman Ge, M.D.Irvine, CA 926181760594170
Common questions
What is Peter Trong Ngoc Nguyen, DO's NPI number?
Peter Trong Ngoc Nguyen, DO's National Provider Identifier (NPI) is 1538240734, issued on Oct 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Peter Trong Ngoc Nguyen, DO located?
The NPPES record lists a practice address at 18111 Brookhurst St Ste 5400, Fountain Valley, CA, 92708. Phone: (714) 378-5577. Providers update this record themselves, so call before visiting.
How can I verify Peter Trong Ngoc Nguyen, DO's license?
NPPES lists California license number 20A9575, 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 Trong Ngoc Nguyen, DO prescribe under Medicare Part D?
In 2024, Peter Trong Ngoc Nguyen, DO had 766 Medicare Part D claims for 220 beneficiaries; the average among otolaryngology/facial plastic surgery physician prescribers was 550. 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.