NPPES file of Aug 9, 2026

Trong B. Nguyen, MD

Sports Medicine (Orthopaedic Surgery) Physician · Fountain Valley, CA

Trong B. Nguyen, MD is a sports medicine (orthopaedic surgery) physician with a practice address in Fountain Valley, California, and NPI 1427221134, issued on Apr 2, 2008. Check the license (California A99679, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1427221134
Name
Trong B. Nguyen
Credential
MD
Primary taxonomy
Sports Medicine (Orthopaedic Surgery) Physician 207XX0005X
License number
A99679 CA
Self-reported in NPPES; status is on the state search
Practice location
18035 Brookhurst St # 1100, Fountain Valley, CA 92708
Phone
(714) 861-4888
Enumerated
Apr 2, 2008
Record last updated
Mar 17, 2018 (not updated in 8 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20090102000160); accepts Medicare assignment
Medical or professional school
Un Of California, Irvine, College Of Medicine, 2002
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 18035 Brookhurst St # 1100

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

  1. Michael Kim-Orden, MDAdult Reconstructive Orthopaedic Surgery Physician1326457839

Verify Trong B. 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 A99679
    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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2.3 times the Medicare Part D claims of the average sports medicine (orthopaedic surgery) physician in 2024

650 Medicare Part D claims for 199 beneficiaries, against an average of 288 among the 2,562 providers of this specialty who prescribed in Part D. 157 claims were for opioids.

  1. Trong Nguyen650
  2. Specialty average288

Most prescribed

  1. Meloxicam335 claims
  2. Oxycodone-Acetaminophen122 claims
  3. Gabapentin54 claims
  4. Celecoxib20 claims
  5. Tramadol Hcl19 claims
  6. Hydrocodone-Acetaminophen16 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 76.7 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score80.9
  2. Costout of 100 · 30%55.1
  3. Promoting interoperabilityout of 100 · 25%78.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $270.27

5 payments; by number, the most common kind was food and beverage; the largest payer was Stryker Corporation. The 2,400 providers of this specialty with any payment received $19,779.31 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Trong Nguyen$270
  2. Specialty average$19,779

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. Trong B Nguyen MD IncFountain Valley, CA

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

Trong B. Nguyen among 384 sports medicine (orthopaedic surgery) physician records in California

Trong B. Nguyen, MD is one of 384 sports medicine (orthopaedic surgery) physician records with a practice address in California. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 57% of them.

  • NPI issued2008 · 57% of these records are older, 36% newer
  • In a Medicare fileYes · 88% of these records are
  • In the CMS Doctors and Clinicians fileYes · 76% of these records are
  • Graduated2002 · median 2003 among the 293 with a school on file
  • Record last updated2018 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207XX0005X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Sports Medicine (Orthopaedic Surgery) Physician providers in California

There are 384 sports medicine (orthopaedic surgery) physician records in California.

The 8 sports medicine (orthopaedic surgery) physician records with the nearest ZIP codes

  1. Alan Strizak, M.D.Mission Viejo, CA 926921750488755
  2. Herbert Eidt, M.D.Mission Viejo, CA 926911093797367
  3. Michael J Fitzpatrick, MDMission Viejo, CA 926911952481004
  4. Eric TaylorMission Viejo, CA 926911255046777
  5. Neilen Benvegnu, MDNewport Beach, CA 926631073054490
  6. Alan Beyer, M.D.Newport Beach, CA 926601104853134
  7. Ryan Labovitch, MDNewport Beach, CA 926601003914318
  8. Stephen Mikulak, M.D.Newport Beach, CA 926601891722203

Common questions

What is Trong B. Nguyen, MD's NPI number?

Trong B. Nguyen, MD's National Provider Identifier (NPI) is 1427221134, issued on Apr 2, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Trong B. Nguyen, MD located?

The NPPES record lists a practice address at 18035 Brookhurst St # 1100, Fountain Valley, CA, 92708. Phone: (714) 861-4888. Providers update this record themselves, so call before visiting.

How can I verify Trong B. Nguyen, MD's license?

NPPES lists California license number A99679, 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 Trong B. Nguyen, MD prescribe under Medicare Part D?

In 2024, Trong B. Nguyen, MD had 650 Medicare Part D claims for 199 beneficiaries; the average among sports medicine (orthopaedic surgery) physician prescribers was 288. Part D covers Medicare prescriptions only.

What is Trong B. Nguyen, MD's MIPS final score?

The 2023 MIPS final score is 76.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.