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Mark Matson Kaehr, MD

NPI 1427361450ActiveIndividual· Ophthalmology, Retina Specialist· Carmel, IN

Ophthalmology, Retina Specialist (MD) in Carmel, Indiana, trained at Indiana University School of Medicine (class of 2010). In 2024 Medicare paid $2,969,444 for 964 patients, and Part D covered 679 of their prescriptions, 63% of them generic. Astellas Pharma US Inc reported $21.16 in payments in 2025, mostly food and beverage.

Overview

NPI1427361450
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedJul 19, 2010
Last updated in NPPESMay 15, 2025
Certified by providerMay 15, 2025

Specialties and licenses

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 - Ophthalmology (IN)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients964
Services billed35,176 across 49 procedure codes
Paid by Medicare$2,969,444

Part D prescriptions in 2024

Prescriptions (claims)679 · 1,125 30-day fills
Patients232
Total drug cost$269,039
Generic share63% of claims

Medicare sources and data years

Education and affiliations

Medical schoolIndiana University School of Medicine
Graduation year2010
Medicare specialtyOphthalmology

Medical group

Hospital affiliation

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$21.16 · 1 payment from 1 company

Top paying companies in 2025

CompanyAmountPayments
Astellas Pharma US Inc$21.161

What the 2025 payments were for

  • Food and Beverage$21.16 · 1 payment

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

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