Timothy L. Williamson, M.D.

NPI 1750474326ActiveIndividual· Internal Medicine, Critical Care Medicine· Kansas City, KS

Internal Medicine, Critical Care Medicine (M.D.) in Kansas City, Kansas, trained at University of Kansas School of Med (Kc/Wich/Sal) (class of 1995). Their prescriptions cost Medicare Part D more than their services did: $13,586,884 for 2,211 claims, against $24,368 paid for services in 2024. United Therapeutics Corporation was the largest of 2 companies reporting payments in 2025, $8,214 in all, mostly consulting fees.

Overview

NPI	1750474326
Status	Active
Entity type	Individual
Credential	M.D.
Sole proprietor	No
NPI issued	Oct 2, 2006
Last updated in NPPES	May 22, 2014

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine, Critical Care Medicine Primary	207RC0200X	04-27184	KS
Internal Medicine, Pulmonary Disease	207RP1001X	04-27184	KS

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 - Pulmonary Disease (KS)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	140
Services billed	245 across 9 procedure codes
Paid by Medicare	$24,368

Part D prescriptions in 2024

Prescriptions (claims)	2,211 · 3,090 30-day fills
Patients	144
Total drug cost	$13,586,884
Generic share	59% of claims

Medicare sources and data years

Education and affiliations

Medical school	University of Kansas School of Med (Kc/Wich/Sal)
Graduation year	1995
Medicare specialty	Pulmonary Disease
Secondary specialties	Critical Care (Intensivists), Internal Medicine
Telehealth	Offers telehealth