NPPES file of Aug 9, 2026

Khoi Trinh

Family Medicine Physician · Garden Grove, CA

Khoi Trinh is a family medicine physician with a practice address in Garden Grove, California, and NPI 1275117004, issued on May 7, 2021. Check the license (California 20A21321, 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
1275117004
Name
Khoi Trinh
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
20A21321 CA
Self-reported in NPPES; status is on the state search
Practice location
10222 Westminster Ave, Garden Grove, CA 92843
Phone
(714) 539-0444
Enumerated
May 7, 2021
Record last updated
Oct 3, 2024
Medicare enrollment
Enrolled (PECOS I20241028001606); 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 Khoi Trinh in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A21321
    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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50% more Medicare Part D claims than the average family medicine physician in 2024

5,306 Medicare Part D claims for 594 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 25 claims were for opioids.

  1. Khoi Trinh5,306
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium292 claims
  2. Amlodipine Besylate250 claims
  3. Losartan Potassium249 claims
  4. Celecoxib223 claims
  5. Triamcinolone Acetonide179 claims
  6. Azithromycin158 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: $89.68

4 payments; by number, the most common kind was food and beverage; the largest payer was Aimmune Therapeutics, 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. Khoi Trinh$89.68
  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 2 group practices

  1. American Current Care OF California A Medical CorporationPlacentia, CA
  2. Hung Nguyen, M.D., Inc.Garden Grove, CA

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

Khoi Trinh among 17,133 family medicine physician records in California

Khoi Trinh 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 2021, is newer than 91% of them.

  • NPI issued2021 · 91% of these records are older, 6% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2021 · median 2005 among the 10,652 with a school on file
  • Record last updated2024 · 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. Thoa Do, MDGarden Grove, CA 928431982719597
  7. Said El-Zayat, M.D.Garden Grove, CA 928431215042866
  8. Ann Newsome, MDGarden Grove, CA 928431346285509

Common questions

What is Khoi Trinh's NPI number?

Khoi Trinh's National Provider Identifier (NPI) is 1275117004, issued on May 7, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Khoi Trinh located?

The NPPES record lists a practice address at 10222 Westminster Ave, Garden Grove, CA, 92843. Phone: (714) 539-0444. Providers update this record themselves, so call before visiting.

How can I verify Khoi Trinh's license?

NPPES lists California license number 20A21321, 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 Khoi Trinh prescribe under Medicare Part D?

In 2024, Khoi Trinh had 5,306 Medicare Part D claims for 594 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.