Christopher John Carlson, M.D.

NPI 1821011065ActiveIndividual· Internal Medicine, Gastroenterology· Seattle, WA

Internal Medicine, Gastroenterology (M.D.) in Seattle, Washington, trained at State University of New York at Buffalo School of Medicine (class of 1999). Their prescriptions cost Medicare Part D more than their services did: $339,505 for 346 claims, against $71,034 paid for services in 2024. Boston Scientific Corporation reported $416.97 in payments in 2025, mostly food and beverage.

Overview

NPI	1821011065
Status	Active
Entity type	Individual
Credential	M.D.
Sole proprietor	No
NPI issued	Jul 26, 2006
Last updated in NPPES	Apr 16, 2021
Certified by provider	Apr 16, 2021

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine, Gastroenterology Primary	207RG0100X	MD00042230	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	225
Services billed	512 across 60 procedure codes
Paid by Medicare	$71,034

Part D prescriptions in 2024

Prescriptions (claims)	346 · 510 30-day fills
Patients	127
Total drug cost	$339,505
Generic share	72% of claims

Medicare sources and data years

Education and affiliations

Medical school	State University of New York at Buffalo School of Medicine
Graduation year	1999
Medicare specialty	Gastroenterology
Secondary specialties	Internal Medicine
Telehealth	Offers telehealth