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Robert J S Mack, M.D. P C

NPI 1932107778ActiveIndividual· Ophthalmology· Hoffman Estates, IL

Ophthalmology (M.D. P C) in Hoffman Estates, Illinois, trained at Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University (class of 1989). In 2024 Medicare paid $586,700 for 796 patients, and Part D covered 5,212 of their prescriptions, 62% of them generic. Hologic Sales and Service, LLC reported $47.78 in payments in 2024, mostly food and beverage.

Overview

NPI1932107778
StatusActive
Entity typeIndividual
CredentialM.D. P C
Sole proprietorNo
NPI issuedJul 13, 2005
Last updated in NPPESDec 28, 2022
Certified by providerDec 28, 2022

Specialties and licenses

TaxonomyCodeLicenseState
Ophthalmology Primary207W00000X036090403IL
Specialist174400000X036-090403IL

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 - Ophthalmology (IL)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients796
Services billed5,384 across 71 procedure codes
Paid by Medicare$586,700

Part D prescriptions in 2024

Prescriptions (claims)5,212 · 8,384 30-day fills
Patients835
Total drug cost$530,372
Generic share62% of claims

Medicare sources and data years

Education and affiliations

Medical schoolClvlnd Clinic Lerner College of Med of Case Wstn Rsv University
Graduation year1989
Medicare specialtyOphthalmology

Medical group

Hospital affiliations

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2024$47.78 · 2 payments from 1 company

Top paying companies in 2024

CompanyAmountPayments
Hologic Sales and Service, LLC$47.782

What the 2024 payments were for

  • Food and Beverage$47.78 · 2 payments

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

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