NPPES file of Aug 9, 2026

Tracy Uyentrang Nguyen-Oghalai, MD

Rheumatology Physician · La Canada, CA

Tracy Uyentrang Nguyen-Oghalai, MD is a rheumatology physician with a practice address in La Canada, California, and NPI 1013078229, issued on Dec 12, 2006. Check the license (California G86114, 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
1013078229
Name
Tracy Uyentrang Nguyen-Oghalai
Credential
MD
Primary taxonomy
Rheumatology Physician 207RR0500X
License number
G86114 CA
Self-reported in NPPES; status is on the state search
Practice location
1751 Foothill Blvd, La Canada, CA 91011
Phone
(323) 442-9700
Enumerated
Dec 12, 2006
Record last updated
Nov 27, 2023
Fax
(713) 457-4200
Medicare enrollment
Enrolled (PECOS I20170906003939); accepts Medicare assignment
Medical or professional school
University Of Tennessee, Hsc, College Of Medicine, 1993
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 1751 Foothill Blvd

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

  1. Julia Cassetta, M.D.Internal Medicine Physician1548279383
  2. Laura Kauffman, MS, RDNRegistered Dietitian1538771415

Verify Tracy Uyentrang Nguyen-Oghalai in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G86114
    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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89% fewer Medicare Part D claims than the average rheumatology physician in 2024

222 Medicare Part D claims for 38 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims.

  1. Tracy Nguyen-Oghalai222
  2. Specialty average1,978

Most prescribed

  1. Prednisone42 claims
  2. Hydroxychloroquine Sulfate28 claims
  3. Methotrexate22 claims
  4. Allopurinol18 claims
  5. Enbrel Sureclick14 claims
  6. Orencia Clickject11 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. Usc Care Medical Group IncLos Angeles, CA

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

Tracy Uyentrang Nguyen-Oghalai among 926 rheumatology physician records in California

Tracy Uyentrang Nguyen-Oghalai, MD is one of 926 rheumatology 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, 55% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated1993 · median 2003 among the 641 with a school on file
  • Record last updated2023 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Rheumatology Physician providers in California

There are 926 rheumatology physician records in California.

The 8 rheumatology physician records with the nearest ZIP codes

  1. Talha Khawar, M.D.La Canada, CA 910111699089508
  2. Stanley Alexander, MDArcadia, CA 910071497814685
  3. Emy Chen, MDArcadia, CA 910061689741910
  4. Massoud Soleimani, MDArcadia, CA 910061831147156
  5. Soon Min Tan, MDArcadia, CA 910061861578569
  6. Dan La, MDTujunga, CA 910421437178274
  7. David Brown, MDPasadena, CA 911051689710055
  8. Stratos Christianakis, M.D.Pasadena, CA 911051831114008

Common questions

What is Tracy Uyentrang Nguyen-Oghalai, MD's NPI number?

Tracy Uyentrang Nguyen-Oghalai, MD's National Provider Identifier (NPI) is 1013078229, issued on Dec 12, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Tracy Uyentrang Nguyen-Oghalai, MD located?

The NPPES record lists a practice address at 1751 Foothill Blvd, La Canada, CA, 91011. Phone: (323) 442-9700. Providers update this record themselves, so call before visiting.

How can I verify Tracy Uyentrang Nguyen-Oghalai, MD's license?

NPPES lists California license number G86114, 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 Tracy Uyentrang Nguyen-Oghalai, MD prescribe under Medicare Part D?

In 2024, Tracy Uyentrang Nguyen-Oghalai, MD had 222 Medicare Part D claims for 38 beneficiaries; the average among rheumatology physician prescribers was 1,978. 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.