Thomas Wayne Waddington, M.D.

NPI 1891744470ActiveIndividual· Internal Medicine, Pulmonary Disease· Orange, CA

Internal Medicine, Pulmonary Disease (M.D.) in Orange, California, trained at Saint Louis University School of Medicine (class of 2000). In 2024 Medicare paid $109,371 for 408 patients, and Part D covered 202 of their prescriptions, 50% of them generic. Steris Corporation was the largest of 4 companies reporting payments in 2025, $2,050 in all, mostly travel and lodging.

Overview

NPI	1891744470
Status	Active
Entity type	Individual
Credential	M.D.
Sole proprietor	No
NPI issued	May 9, 2006
Last updated in NPPES	Sep 30, 2024
Certified by provider	Sep 30, 2024

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine, Pulmonary Disease Primary	207RP1001X	A81367	CA
Internal Medicine	207R00000X	A81367	CA
Internal Medicine, Critical Care Medicine	207RC0200X	A81367	CA

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 (CA)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	408
Services billed	1,077 across 49 procedure codes
Paid by Medicare	$109,371

Part D prescriptions in 2024

Prescriptions (claims)	202 · 290 30-day fills
Patients	50
Total drug cost	$58,395
Generic share	50% of claims

Medicare sources and data years

Education and affiliations

Medical school	Saint Louis University School of Medicine
Graduation year	2000
Medicare specialty	Pulmonary Disease
Secondary specialties	Critical Care (Intensivists), Internal Medicine
Telehealth	Offers telehealth