NPPES file of Aug 9, 2026

Thuy-Anh Nguyen, D.O.

Family Medicine Physician · Garden Grove, CA

Thuy-Anh Nguyen, D.O. is a family medicine physician with a practice address in Garden Grove, California, and NPI 1609927722, issued on Jan 15, 2007. Check the license (California 20A7243, 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
1609927722
Name
Thuy-Anh Nguyen
Credential
D.O.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
20A7243 CA
Self-reported in NPPES; status is on the state search
Practice location
9862 Chapman Ave, Garden Grove, CA 92841
Phone
(714) 418-2040
Enumerated
Jan 15, 2007
Record last updated
Feb 21, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(714) 418-2045
Medicare enrollment
Enrolled (PECOS I20110118000829); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 9862 Chapman Ave

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

  1. Cindy CungCase Manager/Care Coordinator1457995441
  2. Ngoc Nga Do, FNP-CFamily Nurse Practitioner1972186179
  3. Huong Hoang, DDSGeneral Practice Dentistry1295860013
  4. Thuy Hoang, RNMental Health Counselor1538448907
  5. Jenny KyPsychiatric/Mental Health Nurse Practitioner1306716758
  6. Thuy Le, R.N.Case Management Registered Nurse1508230806

Verify Thuy-Anh 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 20A7243
    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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3.1 times the Medicare Part D claims of the average family medicine physician in 2024

11,058 Medicare Part D claims for 967 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 64 claims were for opioids.

  1. Thuy-Anh Nguyen11,058
  2. Specialty average3,544

Most prescribed

  1. Amlodipine Besylate736 claims
  2. Atorvastatin Calcium683 claims
  3. Losartan Potassium481 claims
  4. Metformin Hcl431 claims
  5. Gabapentin393 claims
  6. Omeprazole376 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: $22.34

1 payment: food and beverage; the largest payer was Bayer Healthcare Pharmaceuticals 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. Thuy-Anh Nguyen$22.34
  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. Top Care Medical Group IncSan Jose, CA

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

Thuy-Anh Nguyen among 17,133 family medicine physician records in California

Thuy-Anh Nguyen, D.O. 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
  • Graduated1994 · median 2005 among the 10,652 with a school on file
  • Record last updated2012 · 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).

69 family medicine physician records list a practice address in Garden Grove

They are 69 of the 4,572 NPPES records with a practice address in Garden Grove, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Hung Doan, M.D.Garden Grove, CA 928411376699918
  2. Lisa Nguyen, DOGarden Grove, CA 928411346735156
  3. Thuy-Chung NguyenGarden Grove, CA 928411942820402
  4. Rupal SidhuGarden Grove, CA 928411114033594
  5. Jennifer Chan, D.O.Garden Grove, CA 928401821433830
  6. Duongthuy Chau, MD, DCGarden Grove, CA 928401154660710
  7. David FannGarden Grove, CA 928401982098182
  8. Cynthia Gonzalez, M.D.Garden Grove, CA 928401881125409

Common questions

What is Thuy-Anh Nguyen, D.O.'s NPI number?

Thuy-Anh Nguyen, D.O.'s National Provider Identifier (NPI) is 1609927722, issued on Jan 15, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Thuy-Anh Nguyen, D.O. located?

The NPPES record lists a practice address at 9862 Chapman Ave, Garden Grove, CA, 92841. Phone: (714) 418-2040. Providers update this record themselves, so call before visiting.

How can I verify Thuy-Anh Nguyen, D.O.'s license?

NPPES lists California license number 20A7243, 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 Thuy-Anh Nguyen, D.O. prescribe under Medicare Part D?

In 2024, Thuy-Anh Nguyen, D.O. had 11,058 Medicare Part D claims for 967 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.