Doctor profile · Federal record

Dr. Naomi Chou, MD

Gastroenterology Physician (CMS: Gastroenterology) · Internal Medicine Physician · Issaquah, WA

  • NPI 1518487628
  • Accepts Medicare
  • MIPS 82.8 / 100 · 2023
  • 9 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
751 Ne Blakely Dr Ste 3020
Issaquah, WA 980296201
(425) 313-5345
fax (425) 313-4704
Mailing address
Po Box 25608
Salt Lake City, UT 841250608

Credentials & registration

NPPES · NUCC
NPI registered
June 2017 — 9 yrs on file
Profile last updated
October 5, 2023
Year of graduation
2017 — 9 yrs since
Specialty taxonomy
207RG0100X — NUCC code
State license (1)
Washington #MD61052834
Medicaid
WA #2159224

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1518487628. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
29
Distinct HCPCS
2
Medicare allowed
$5,199
HCPCS Description Services Patients Avg allowed
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare 15 15 $267
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 14 13 $85

In context: peer comparison

Among 2 peers in this city , average services per provider: 24. This provider delivers 1.2× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$100
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Boston Scientific Corporation 1 $100.04

By nature of payment

Food and Beverage
$100

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
48
Patients
48
Total drug cost
$1,615
Drug Type Claims Patients Total cost
Gavilyte-G (Peg3350/Sod Sulf,bicarb,cl/Kcl) Brand 25 25 $451
Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,mag Sulfates) Brand 12 12 $951
Peg-3350 And Electrolytes (Peg3350/Sod Sulf,bicarb,cl/Kcl) Brand 11 11 $213

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Naomi Chou's medical specialty?
Dr. Naomi Chou practices Gastroenterology Physician in Issaquah, WA.
Where does Dr. Naomi Chou practice?
Dr. Naomi Chou practices at 751 Ne Blakely Dr Ste 3020, Issaquah, WA 980296201. Office phone: 4253135345.
What is Dr. Naomi Chou's NPI?
Dr. Naomi Chou's National Provider Identifier (NPI) is 1518487628, issued by NPPES.
Does Dr. Naomi Chou accept Medicare assignment?
Yes. Dr. Naomi Chou accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Naomi Chou commonly perform?
Top Medicare-reported procedures in 2023: Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385); Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239). Source: CMS Medicare Physician & Other Practitioners file.