Doctor profile · Federal record

Dr. Tiffany Nguyen, MD

Internal Medicine Physician (CMS: Internal Medicine) · Downey, CA

  • NPI 1265004303
  • Accepts Medicare
  • 5 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
9449 Imperial Hwy
Downey, CA 902422814
(833) 574-2273

Credentials & registration

NPPES · NUCC
NPI registered
July 2021 — 5 yrs on file
Profile last updated
October 25, 2024
Year of graduation
2021 — 5 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #A191819

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1265004303. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$140
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Mallinckrodt Hospital Products Inc. 1 $140.02

By nature of payment

Food and Beverage
$140

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
147
Patients
0
Total drug cost
$85,675
Drug Type Claims Patients Total cost
Pantoprazole Sodium Generic 19 0 $326
Atorvastatin Calcium Generic 18 0 $355
Losartan Potassium Generic 18 0 $422
Prezista (Darunavir) Brand 16 0 $37,540
Amlodipine Besylate Generic 14 0 $248
Etravirine Generic 13 0 $17,867
Lisinopril Generic 13 0 $142
Ritonavir Generic 13 0 $1,610
Sulfasalazine Generic 12 0 $398
Descovy (Emtricitabine/Tenofov Alafenam) Brand 11 0 $26,767

Frequently asked questions

Auto-generated from federal data
What is Dr. Tiffany Nguyen's medical specialty?
Dr. Tiffany Nguyen practices Internal Medicine Physician in Downey, CA.
Where does Dr. Tiffany Nguyen practice?
Dr. Tiffany Nguyen practices at 9449 Imperial Hwy, Downey, CA 902422814. Office phone: 8335742273.
What is Dr. Tiffany Nguyen's NPI?
Dr. Tiffany Nguyen's National Provider Identifier (NPI) is 1265004303, issued by NPPES.
Does Dr. Tiffany Nguyen accept Medicare assignment?
Yes. Dr. Tiffany Nguyen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.