NPPES file of Aug 9, 2026

Suzanne Nguyen, MD

Family Medicine Physician · Santa Ana, CA

Suzanne Nguyen, MD is a family medicine physician with a practice address in Santa Ana, California, and NPI 1164605713, issued on Dec 6, 2007. Check the license (California A98321, 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
1164605713
Name
Suzanne Nguyen
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
A98321 CA
Self-reported in NPPES; status is on the state search
Practice location
800 N Main St, Santa Ana, CA 92701
Phone
(714) 456-7002
Enumerated
Dec 6, 2007
Record last updated
May 26, 2010 (not updated in 16 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20090217000067); accepts Medicare assignment
Medical or professional school
Albert Einstein College Of Medicine Of Yeshiva University, 2005
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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Also registered at 800 N Main St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Refat AhsanStudent in an Organized Health Care Education/Training Program1790623676
  2. Lynette Anderson, DOFamily Medicine Physician1164674503
  3. Joanne Azer, D.O.Family Medicine Physician1275822850
  4. Jacob Beene, MDStudent in an Organized Health Care Education/Training Program1477491363
  5. Karen Brandeis, F.N.P.Family Nurse Practitioner1336426840
  6. Karen Bui, MDStudent in an Organized Health Care Education/Training Program1124604954

Verify Suzanne 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 A98321
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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21% fewer Medicare Part D claims than the average family medicine physician in 2024

2,789 Medicare Part D claims for 258 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 16 claims were for opioids.

  1. Suzanne Nguyen2,789
  2. Specialty average3,544

Most prescribed

  1. Amlodipine Besylate196 claims
  2. Atorvastatin Calcium175 claims
  3. Metformin Hcl138 claims
  4. Losartan Potassium111 claims
  5. Lisinopril104 claims
  6. Fluticasone Propionate82 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

  1. Asian Health ServicesOakland, CA

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

Suzanne Nguyen among 17,133 family medicine physician records in California

Suzanne 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 2007, is newer than 41% of them.

  • NPI issued2007 · 41% of these records are older, 47% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2005 · median 2005 among the 10,652 with a school on file
  • Record last updated2010 · 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).

177 family medicine physician records list a practice address in Santa Ana

They are 177 of the 8,904 NPPES records with a practice address in Santa Ana, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Lynette Anderson, DOSanta Ana, CA 927011164674503
  2. Bruno Bucci, M.D.Santa Ana, CA 927011407811250
  3. James Chau, M.D.Santa Ana, CA 927011285727784
  4. John Ehum, MDSanta Ana, CA 927011942483409
  5. Kathryn Larsen, MDSanta Ana, CA 927011598845638
  6. Tim Le, D.O.Santa Ana, CA 927011366480188
  7. Amy Leu, D.O.Santa Ana, CA 927011922297712
  8. Jose Mayorga, MDSanta Ana, CA 927011295925154

Common questions

What is Suzanne Nguyen, MD's NPI number?

Suzanne Nguyen, MD's National Provider Identifier (NPI) is 1164605713, issued on Dec 6, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Suzanne Nguyen, MD located?

The NPPES record lists a practice address at 800 N Main St, Santa Ana, CA, 92701. Phone: (714) 456-7002. Providers update this record themselves, so call before visiting.

How can I verify Suzanne Nguyen, MD's license?

NPPES lists California license number A98321, 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 Suzanne Nguyen, MD prescribe under Medicare Part D?

In 2024, Suzanne Nguyen, MD had 2,789 Medicare Part D claims for 258 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.