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Shannon Elise Mackay, DO

NPI 1235585548ActiveIndividual· Hospitalist· Littleton, CO

Hospitalist (DO) in Littleton, Colorado, trained at Rocky Vista University College of Osteopathic Med (class of 2016). In 2024 Medicare paid $68,289 for 356 patients, and Part D covered 281 of their prescriptions, 83% of them generic.

Overview

NPI1235585548
StatusActive
Entity typeIndividual
CredentialDO
Sole proprietorYes
NPI issuedMay 5, 2016
Last updated in NPPESOct 9, 2026
Certified by providerOct 9, 2026

Specialties and licenses

TaxonomyCodeLicenseState
Hospitalist Primary208M00000XDR.0062368CO
Internal Medicine207R00000XDR.0062368CO

About license numbers in NPPES

Exclusion screening

ListResultDetails
HHS-OIG LEIE · Nov 10, 2026No matchChecked by NPI and by name + state
North Carolina Medicaid · Nov 11, 2026No match—
New York OMIG · Nov 11, 2026No match—
Ohio Medicaid · Nov 11, 2026No match—
Pennsylvania Medicheck · Nov 11, 2026No match—
Washington HCA · Nov 11, 2026No match—

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

Medicare

Enrollment (PECOS)Enrolled Practitioner - Hospitalist (CO)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients356
Services billed704 across 10 procedure codes
Paid by Medicare$68,289

Part D prescriptions in 2024

Prescriptions (claims)281 · 290 30-day fills
Patients127
Total drug cost$12,040
Generic share83% of claims

Medicare sources and data years

Education and affiliations

Medical schoolRocky Vista University College of Osteopathic Med
Graduation year2016
Medicare specialtyHospitalist
Secondary specialtiesInternal Medicine

Medical group

Hospital affiliations

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 hospitalists in Littleton

All hospitalists in Colorado