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Mark F. Berntsen, MD

NPI 1730166687ActiveIndividual· Internal Medicine· Greeley, CO

Internal Medicine (MD) in Greeley, Colorado, trained at University of Kansas School of Med (Kc/Wich/Sal) (class of 1993). Their prescriptions cost Medicare Part D more than their services did: $2,368,917 for 25,805 claims, against $114,466 paid for services in 2024.

Overview

NPI1730166687
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedDec 30, 2005
Last updated in NPPESJul 1, 2013

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine Primary207R00000X35897CO

About license numbers in NPPES

Exclusion screening

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

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

Medicare

Enrollment (PECOS)Enrolled Practitioner - Internal Medicine (CO)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients820
Services billed2,769 across 42 procedure codes
Paid by Medicare$114,466

Part D prescriptions in 2024

Prescriptions (claims)25,805 · 63,204 30-day fills
Patients1,711
Total drug cost$2,368,917
Generic share88% of claims

Medicare sources and data years

Education and affiliations

Medical schoolUniversity of Kansas School of Med (Kc/Wich/Sal)
Graduation year1993
Medicare specialtyInternal Medicine
TelehealthOffers telehealth

Medical groups

Hospital affiliations

Other facilities

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

Other Internal Medicine providers in Greeley

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