Karen B. Alderfer, MD

NPI 1043534654ActiveIndividual· Radiology, Diagnostic Radiology· Fort Collins, CO

Radiology, Diagnostic Radiology (MD) in Fort Collins, Colorado, trained at University of Nevada School of Medicine (class of 2010). Medicare paid $72,094 for services to 1,444 patients in 2024.

Overview

NPI	1043534654
Status	Active
Entity type	Individual
Credential	MD
Sole proprietor	No
NPI issued	Mar 25, 2010
Last updated in NPPES	Jul 1, 2025
Certified by provider	Jul 1, 2025

Specialties and licenses

Taxonomy	Code	License	State
Radiology, Diagnostic Radiology Primary	2085R0202X	16586	NV
Radiology, Diagnostic Radiology	2085R0202X	14311C	WY
Radiology, Diagnostic Radiology	2085R0202X	CDR.0001517	CO
Radiology, Diagnostic Radiology	2085R0202X	34356	NE
Radiology, Diagnostic Radiology	2085R0202X	A121137	CA

About license numbers in NPPES

Exclusion screening

List	Result	Details
HHS-OIG LEIE · Oct 9, 2026	No match	Checked by NPI and by name + state
North Carolina Medicaid · Nov 10, 2026	No match	—
New York OMIG · Nov 10, 2026	No match	—
Ohio Medicaid · Nov 10, 2026	No match	—
Pennsylvania Medicheck · Nov 10, 2026	No match	—
Washington HCA · Nov 10, 2026	No match	—

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

Medicare

Enrollment (PECOS)	Enrolled Practitioner - Diagnostic Radiology (CO); Practitioner - Diagnostic Radiology (NV)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	1,444
Services billed	3,810 across 114 procedure codes
Paid by Medicare	$72,094

Medicare sources and data years

Education and affiliations

Medical school	University of Nevada School of Medicine
Graduation year	2010
Medicare specialty	Diagnostic Radiology

Medical groups

Uchealth Imaging Services LLCBroomfield, CO · 258 clinicians
Fort Collins Radiologic Associates PCFort Collins, CO · 63 clinicians

Hospital affiliations

Ivinson Memorial HospitalLaramie, WY
Longs Peak HospitalLongmont, CO
Medical Center of the RockiesLoveland, CO
Poudre Valley HospitalFort Collins, CO
Uchealth Greeley HospitalGreeley, CO

Source: CMS Care Compare

Industry payments (Open Payments)

None reported for 2025 or 2024.

Receiving payments does not imply wrongdoing. What Open Payments covers ·original records

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