Casey Williamson, M.D.

NPI 1437683570ActiveIndividual· Radiology, Radiation Oncology· Portland, OR

Radiology, Radiation Oncology (M.D.) in Portland, Oregon, trained at University of California, San Diego School of Medicine (class of 2017). 237 Medicare patients in 2024, $85,762 paid; nearly all of their 62 Part D prescriptions were generic (98%). Boston Scientific Corporation reported $39.77 in payments in 2024, mostly food and beverage.

Overview

NPI	1437683570
Status	Active
Entity type	Individual
Credential	M.D.
Sole proprietor	No
NPI issued	Apr 15, 2017
Last updated in NPPES	Nov 29, 2022
Certified by provider	Jun 17, 2022

Specialties and licenses

Taxonomy	Code	License	State
Radiology, Radiation Oncology Primary	2085R0001X	MD209995	OR
Student in an Organized Health Care Education/Training Program	390200000X	—	—

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 - Radiation Oncology (OR)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	237
Services billed	967 across 35 procedure codes
Paid by Medicare	$85,762

Part D prescriptions in 2024

Prescriptions (claims)	62 · 102 30-day fills
Patients	31
Total drug cost	$963.65
Generic share	98% of claims

Medicare sources and data years

Education and affiliations

Medical school	University of California, San Diego School of Medicine
Graduation year	2017
Medicare specialty	Radiation Oncology
Telehealth	Offers telehealth