Cynthia Wun-Ping Ko

NPI 1063597870ActiveIndividual· Internal Medicine, Gastroenterology· Seattle, WA

Internal Medicine, Gastroenterology in Seattle, Washington, trained at Stanford University School of Medicine (class of 1991). Their prescriptions cost Medicare Part D more than their services did: $179,775 for 388 claims, against $23,307 paid for services in 2024. Cook Medical LLC was the largest of 2 companies reporting payments in 2025, $103.75 in all, mostly food and beverage.

Overview

NPI	1063597870
Status	Active
Entity type	Individual
Sole proprietor	No
NPI issued	Oct 27, 2006
Last updated in NPPES	Jul 8, 2007

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine, Gastroenterology Primary	207RG0100X	MD00031815	WA

About license numbers in NPPES

Exclusion screening

List	Result	Details
HHS-OIG LEIE · Nov 10, 2026	No match	Checked by NPI and by name + state
North Carolina Medicaid · Nov 11, 2026	No match	—
New York OMIG · Nov 11, 2026	No match	—
Ohio Medicaid · Nov 11, 2026	No match	—
Pennsylvania Medicheck · Nov 11, 2026	No match	—
Washington HCA · Nov 11, 2026	No match	—

Official OIG search · How matching works ·Bulk check a roster

Medicare

Enrollment (PECOS)	Enrolled Practitioner - Gastroenterology (WA)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	125
Services billed	210 across 24 procedure codes
Paid by Medicare	$23,307

Part D prescriptions in 2024

Prescriptions (claims)	388 · 626 30-day fills
Patients	146
Total drug cost	$179,775
Generic share	70% of claims

Medicare sources and data years

Education and affiliations

Medical school	Stanford University School of Medicine
Graduation year	1991
Medicare specialty	Gastroenterology
Secondary specialties	Internal Medicine
Telehealth	Offers telehealth