Peter B. Nguyen, DDS
Dentist · San Marcos, CA
Peter B. Nguyen, DDS is a dentist with a practice address in San Marcos, California, and NPI 1720118920, issued on Mar 6, 2007. Check the license (California 47536, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Peter B. Nguyen
- Credential
- DDS
- Primary taxonomy
- Dentist 122300000X
- License number
- 47536 CA
Self-reported in NPPES; status is on the state search - Practice location
- 250 S Pacific St, San Marcos, CA 92078
- Phone
- (760) 597-9999
- Enumerated
- Mar 6, 2007
- Record last updated
- Apr 6, 2026
- Fax
- (760) 798-7960
- Entity
- Type 1 · individual
8 nearest dentist records → All 14,729 in California → Look up another NPI →
Verify Peter B. Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 47536Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
69% fewer Medicare Part D claims than the average dentist in 2024
27 Medicare Part D claims for 20 beneficiaries, against an average of 86 among the 51,021 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.
Peter B. Nguyen among 14,729 dentist records in California
Peter B. Nguyen, DDS is one of 14,729 dentist records with a practice address in California. 56% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 18% of them.
- NPI issued2007 · 18% of these records are older, 58% newer
- In a Medicare fileYes · 56% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2026 · 73% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 122300000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
46 dentist records list a practice address in San Marcos
They are 46 of the 1,985 NPPES records with a practice address in San Marcos, and 14,729 dentist records in California.
All 14,729 in California → Every provider in San Marcos → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Jeffrey Allred, D.D.S.San Marcos, CA 920781194964411
- David Banks, D.D.S.San Marcos, CA 920781083620223
- Jordan ColbySan Marcos, CA 920781861874471
- Pierre Doche, DMDSan Marcos, CA 920781396789327
- Karina Gregg, DDSSan Marcos, CA 920781811276983
- Jonathan HanSan Marcos, CA 920781407529217
- Caroline HwangSan Marcos, CA 920781659634194
- Randall Leads, DDSSan Marcos, CA 920781578585188
Common questions
What is Peter B. Nguyen, DDS's NPI number?
Peter B. Nguyen, DDS's National Provider Identifier (NPI) is 1720118920, issued on Mar 6, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Peter B. Nguyen, DDS located?
The NPPES record lists a practice address at 250 S Pacific St, San Marcos, CA, 92078. Phone: (760) 597-9999. Providers update this record themselves, so call before visiting.
How can I verify Peter B. Nguyen, DDS's license?
NPPES lists California license number 47536, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Peter B. Nguyen, DDS prescribe under Medicare Part D?
In 2024, Peter B. Nguyen, DDS had 27 Medicare Part D claims for 20 beneficiaries; the average among dentist prescribers was 86. 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.