Doctor profile · Federal record

Dr. Nikki Duong, MD

Gastroenterology Physician (CMS: Gastroenterology) · Internal Medicine Physician · Transplant Hepatology Physician · Hospitalist Physician · Palo Alto, CA

  • NPI 1164884284
  • Accepts Medicare
  • 10 yrs in practice
  • Licensed in 2 states
  • Male
  • Solo practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
300 Pasteur Dr
Palo Alto, CA 943042203
(650) 723-4000
Additional location
3800 Reservoir RD Nw Dept of
Washington, DC 200072113
(202) 444-8168

Credentials & registration

NPPES · NUCC
NPI registered
March 2016 — 10 yrs on file
Profile last updated
March 16, 2024
Year of graduation
2016 — 10 yrs since
Specialty taxonomy
207RG0100X — NUCC code
State licenses (2)
California #A192254 · District of Columbia #MD045392

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1164884284. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,619
Transactions
3
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Ardelyx, INC. 2 $1,581.67
Takeda Pharmaceuticals U.S.A., INC. 1 $37.38

By nature of payment

Consulting Fee
$1,582
Food and Beverage
$37

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
24
Patients
24
Total drug cost
$409
Drug Type Claims Patients Total cost
Gavilyte-G (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) Brand 24 24 $409

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Nikki Duong's medical specialty?
Dr. Nikki Duong practices Gastroenterology Physician in Palo Alto, CA.
Where does Dr. Nikki Duong practice?
Dr. Nikki Duong practices at 300 Pasteur Dr, Palo Alto, CA 943042203. Office phone: 6507234000.
What is Dr. Nikki Duong's NPI?
Dr. Nikki Duong's National Provider Identifier (NPI) is 1164884284, issued by NPPES.
Does Dr. Nikki Duong accept Medicare assignment?
Yes. Dr. Nikki Duong accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.

Methodology · sources used on this page

All figures on this page come from publicly available federal datasets. We do not edit, score, or summarise the underlying data. Profile generated Jun 17, 2026.

NPPES Provider identifiers and practice info May 11, 2026
Open Payments Industry payments to providers (Sunshine Act) May 11, 2026
Medicare Procedure Utilization Services and allowed amounts by HCPCS May 11, 2026
Medicare Part D Prescription drug claims May 11, 2026
CMS MIPS Quality performance scores May 11, 2026
OIG LEIE Federal exclusion / sanctions list May 11, 2026

Information based on publicly available federal data. Not medical advice. Report incorrect data ›