NPPES file of Aug 9, 2026

Thoa Trong Do, MD

Family Medicine Physician · Garden Grove, CA

Thoa Trong Do, MD is a family medicine physician with a practice address in Garden Grove, California, and NPI 1982719597, issued on Aug 21, 2006. Check the license (California A43520, 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
1982719597
Name
Thoa Trong Do
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
A43520 CA
Self-reported in NPPES; status is on the state search
Practice location
14350 Brookhurst St, Garden Grove, CA 92843
Phone
(714) 839-0294
Enumerated
Aug 21, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(714) 839-1082
Medicaid ID
00A435200 CA
Medicare enrollment
Enrolled (PECOS I20100825000461); accepts Medicare assignment
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 Thoa Trong Do in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A43520
    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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24% more Medicare Part D claims than the average family medicine physician in 2024

4,388 Medicare Part D claims for 162 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.

  1. Thoa Do4,388
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium465 claims
  2. Amlodipine Besylate322 claims
  3. Metformin Hcl251 claims
  4. Losartan Potassium250 claims
  5. Tradjenta167 claims
  6. Tamsulosin Hcl165 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. Family Choice Aco IncWestminster, CA

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

Thoa Trong Do among 17,133 family medicine physician records in California

Thoa Trong Do, 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
  • Graduated1975 · median 2005 among the 10,652 with a school on file
  • Record last updated2007 · 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. Trieu Bui, DOGarden Grove, CA 928431548252505
  2. Hiep Dang, D.O.Garden Grove, CA 928431356328900
  3. Michael Dao, M.D.Garden Grove, CA 928431033182951
  4. Usha Dhar, M.D.Garden Grove, CA 928431699886846
  5. Jaclynn Do, M.D.Garden Grove, CA 928431366439051
  6. Said El-Zayat, M.D.Garden Grove, CA 928431215042866
  7. Ann Newsome, MDGarden Grove, CA 928431346285509
  8. Lanhuong Nguyen, M.D.Garden Grove, CA 928431336104264

Common questions

What is Thoa Trong Do, MD's NPI number?

Thoa Trong Do, MD's National Provider Identifier (NPI) is 1982719597, issued on Aug 21, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Thoa Trong Do, MD located?

The NPPES record lists a practice address at 14350 Brookhurst St, Garden Grove, CA, 92843. Phone: (714) 839-0294. Providers update this record themselves, so call before visiting.

How can I verify Thoa Trong Do, MD's license?

NPPES lists California license number A43520, 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 Thoa Trong Do, MD prescribe under Medicare Part D?

In 2024, Thoa Trong Do, MD had 4,388 Medicare Part D claims for 162 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.