NPPES file of Aug 9, 2026

Amy Ngoc Nguyen, MD

Family Medicine Physician · Fullerton, CA

Amy Ngoc Nguyen, MD is a family medicine physician with a practice address in Fullerton, California, and NPI 1548274996, issued on Jul 28, 2006. Check the license (California A80879, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1548274996
Name
Amy Ngoc Nguyen
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
A80879 CA
Self-reported in NPPES; status is on the state search
Practice location
2720 N Harbor Blvd Ste 205, Fullerton, CA 92835
Phone
(714) 882-5525
Enumerated
Jul 28, 2006
Record last updated
May 23, 2026
Fax
(714) 882-5078
Medicaid ID
GR0094190 CA
Medicare enrollment
Enrolled (PECOS I20040719000562); accepts Medicare assignment
Medical or professional school
Tufts University School Of Medicine, 2001
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Amy Ngoc Nguyen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A80879
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

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96% fewer Medicare Part D claims than the average family medicine physician in 2024

149 Medicare Part D claims for 53 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.

  1. Amy Nguyen149
  2. Specialty average3,544

Most prescribed

  1. Ciclopirox16 claims
  2. Mupirocin13 claims
  3. Dupixent Pen12 claims
  4. Clobetasol Propionate11 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.

Industry payments in 2024: $2,350.62

88 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Amy Nguyen$2,350.62
  2. Specialty average$902.55

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

  1. Howard Fein MD IncFullerton, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Amy Ngoc Nguyen among 17,133 family medicine physician records in California

Amy Ngoc Nguyen, MD is one of 17,133 family 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 2006, is newer than 6% of them.

  • NPI issued2006 · 6% of these records are older, 59% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2001 · median 2005 among the 10,652 with a school on file
  • Record last updated2026 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

35 family medicine physician records list a practice address in Fullerton

They are 35 of the 5,437 NPPES records with a practice address in Fullerton, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Anne Amer, D.O.Fullerton, CA 928351194979377
  2. Jonathan Anderson, MDFullerton, CA 928351588664916
  3. Christopher Aou, DOFullerton, CA 928351164422671
  4. James Benoit, M.D.Fullerton, CA 928351407843949
  5. Bing-Lo Chang, M.D.Fullerton, CA 928351295721900
  6. Mark Davenport, M.D.Fullerton, CA 928351679569636
  7. Michael Green, D.O.Fullerton, CA 928351902944788
  8. Daniel Kim, M.D.Fullerton, CA 928351457347411

Common questions

What is Amy Ngoc Nguyen, MD's NPI number?

Amy Ngoc Nguyen, MD's National Provider Identifier (NPI) is 1548274996, issued on Jul 28, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Amy Ngoc Nguyen, MD located?

The NPPES record lists a practice address at 2720 N Harbor Blvd Ste 205, Fullerton, CA, 92835. Phone: (714) 882-5525. Providers update this record themselves, so call before visiting.

How can I verify Amy Ngoc Nguyen, MD's license?

NPPES lists California license number A80879, 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 Amy Ngoc Nguyen, MD prescribe under Medicare Part D?

In 2024, Amy Ngoc Nguyen, MD had 149 Medicare Part D claims for 53 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.