NPPES file of Aug 9, 2026

Tram Ngoc Nguyen, M.D.

Physical Medicine & Rehabilitation Physician · San Mateo, CA

Tram Ngoc Nguyen, M.D. is a physical medicine & rehabilitation physician with a practice address in San Mateo, California, and NPI 1336257534, issued on Aug 28, 2006. Check the license (California A68051, 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
1336257534
Name
Tram Ngoc Nguyen
Credential
M.D.
Primary taxonomy
Physical Medicine & Rehabilitation Physician 208100000X
License number
A68051 CA
Self-reported in NPPES; status is on the state search
Practice location
100 S San Mateo Dr, San Mateo, CA 94401
Phone
(650) 696-4300
Enumerated
Aug 28, 2006
Record last updated
Mar 24, 2009 (not updated in 17 years: call before relying on the address or phone)
Fax
(650) 696-4984
Medicare enrollment
Enrolled (PECOS I20061227000221); may accept Medicare assignment
Medical or professional school
Louisiana State University School Of Medicine In New Orleans, 1997
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 100 S San Mateo Dr

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

  1. Frederick Adler, M.D.Family Medicine Physician1629030515
  2. Avanti Ambekar, M.D.Diagnostic Radiology Physician1356447627
  3. Mandeep Bajwa, M.D.Family Medicine Physician1891083978
  4. Harriet Borofsky, M.D.Diagnostic Radiology Physician1033162912
  5. Kelly Broderick, M.D.Diagnostic Radiology Physician1609821891
  6. Joey CheungRadiological Physics Physician1154256493

Verify Tram Ngoc 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 A68051
    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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73% fewer Medicare Part D claims than the average physical medicine & rehabilitation physician in 2024

196 Medicare Part D claims for 14 beneficiaries, against an average of 727 among the 7,448 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 97 claims were for opioids.

  1. Tram Nguyen196
  2. Specialty average727

Most prescribed

  1. Gabapentin42 claims
  2. Hydrocodone-Acetaminophen36 claims
  3. Tramadol Hcl14 claims
  4. Buprenorphine13 claims
  5. Oxycodone Hcl13 claims
  6. Baclofen11 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: $364.49

11 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 3,895 providers of this specialty with any payment received $1,237.86 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Tram Nguyen$364.49
  2. Specialty average$1,237.86

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. Hoyman Hong, MD A Prof Med CorpSan Mateo, CA

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

Tram Ngoc Nguyen among 1,549 physical medicine & rehabilitation physician records in California

Tram Ngoc Nguyen, M.D. is one of 1,549 physical medicine & rehabilitation physician records with a practice address in California. 59% 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 3% of them.

  • NPI issued2006 · 3% of these records are older, 70% newer
  • In a Medicare fileYes · 59% of these records are
  • In the CMS Doctors and Clinicians fileYes · 51% of these records are
  • Graduated1997 · median 2008 among the 786 with a school on file
  • Record last updated2009 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208100000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Physical Medicine & Rehabilitation Physician providers in California

There are 1,549 physical medicine & rehabilitation physician records in California.

The 8 physical medicine & rehabilitation physician records with the nearest ZIP codes

  1. Lefkos Aftonomos, M.D.San Mateo, CA 944011972544088
  2. Yung Chen, MDSan Mateo, CA 944011386601623
  3. Aaron Parnell, ACSTSan Mateo, CA 944011629611405
  4. Christian Sustrina, PTASan Mateo, CA 944031013737568
  5. Kari Robinson, PTPalo Alto, CA 943061477831089
  6. Navjeet Boparai, MDPalo Alto, CA 943051407025299
  7. Edward Chaw, DOPalo Alto, CA 943051679742472
  8. Raymond Chou, MDStanford, CA 943051376934067

Common questions

What is Tram Ngoc Nguyen, M.D.'s NPI number?

Tram Ngoc Nguyen, M.D.'s National Provider Identifier (NPI) is 1336257534, issued on Aug 28, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Tram Ngoc Nguyen, M.D. located?

The NPPES record lists a practice address at 100 S San Mateo Dr, San Mateo, CA, 94401. Phone: (650) 696-4300. Providers update this record themselves, so call before visiting.

How can I verify Tram Ngoc Nguyen, M.D.'s license?

NPPES lists California license number A68051, 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 Tram Ngoc Nguyen, M.D. prescribe under Medicare Part D?

In 2024, Tram Ngoc Nguyen, M.D. had 196 Medicare Part D claims for 14 beneficiaries; the average among physical medicine & rehabilitation physician prescribers was 727. 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.