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Mary Eileen McCormack, DO

NPI 1104939958ActiveIndividual· Obstetrics & Gynecology· Crown Point, IN

Obstetrics & Gynecology (DO) in Crown Point, Indiana, trained at Midwestern University, Chicago College of Osteopathic Med (class of 1987). Part D covered 152 prescriptions written in 2024, 78% of them generic. Organon LLC was the largest of 6 companies reporting payments in 2025, $218.82 in all, mostly food and beverage.

Overview

NPI1104939958
StatusActive
Entity typeIndividual
CredentialDO
Sole proprietorNo
NPI issuedAug 16, 2006
Last updated in NPPESMar 7, 2025
Certified by providerMar 7, 2025

Specialties and licenses

TaxonomyCodeLicenseState
Obstetrics & Gynecology Primary207V00000X02001585AIN
Hospitalist208M00000X02001585AIN

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 - Obstetrics/Gynecology (IN)

Part D prescriptions in 2024

Prescriptions (claims)152 · 353 30-day fills
Patients58
Total drug cost$11,066
Generic share78% of claims

Medicare sources and data years

Education and affiliations

Medical schoolMidwestern University, Chicago College of Osteopathic Med
Graduation year1987
Medicare specialtyObstetrics/Gynecology

Medical group

Hospital affiliations

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$218.82 · 13 payments from 6 companies
  • 2024$557.39 · 25 payments from 10 companies

Top paying companies in 2025

What the 2025 payments were for

  • Food and Beverage$218.82 · 13 payments

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

Other OB-GYNs in Crown Point

All 19 OB-GYNs in Crown Point · All OB-GYNs in Indiana