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Michael L. Baach, MD

NPI 1578579546ActiveIndividual· Internal Medicine· Fishers, IN

Internal Medicine (MD) in Fishers, Indiana, trained at Indiana University School of Medicine (class of 1991). Their prescriptions cost Medicare Part D more than their services did: $332,275 for 4,133 claims, against $52,996 paid for services in 2024. Amgen Inc. was the largest of 15 companies reporting payments in 2025, $822.29 in all, mostly food and beverage.

Overview

NPI1578579546
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedJul 31, 2006
Last updated in NPPESNov 27, 2023
Certified by providerSep 1, 2020

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine Primary207R00000X01040531AIN

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 (IN)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients280
Services billed647 across 28 procedure codes
Paid by Medicare$52,996

Part D prescriptions in 2024

Prescriptions (claims)4,133 · 10,269 30-day fills
Patients677
Total drug cost$332,275
Generic share88% of claims

Medicare sources and data years

Education and affiliations

Medical schoolIndiana University School of Medicine
Graduation year1991
Medicare specialtyInternal Medicine
TelehealthOffers telehealth

Medical group

Hospital affiliations

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$822.29 · 38 payments from 15 companies
  • 2024$569.33 · 31 payments from 13 companies

Top paying companies in 2025

CompanyAmountPayments
Amgen Inc.$203.473
Lilly USA, LLC$110.805
Abbott Laboratories$90.334
Abbvie Inc.$74.084
Astrazeneca Pharmaceuticals LP$66.354

What the 2025 payments were for

  • Food and Beverage$647.29 · 37 payments
  • Consulting Fee$175.00 · 1 payment

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

Other Internal Medicine providers in Fishers

All Internal Medicine providers in Indiana →