Skip to content

James David Callahan, M.D.

NPI 1750311098ActiveIndividual· Neurological Surgery· Anderson, IN

Neurological Surgery (M.D.) in Anderson, Indiana, trained at Indiana University School of Medicine (class of 1988). 191 Medicare patients in 2024, $209,483 paid; nearly all of their 323 Part D prescriptions were generic (99%). Medtronic, Inc. was the largest of 2 companies reporting payments in 2025, $514.50 in all, mostly travel and lodging.

Overview

NPI1750311098
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedJul 3, 2006
Last updated in NPPESFeb 12, 2023
Certified by providerFeb 12, 2023

Specialties and licenses

TaxonomyCodeLicenseState
Neurological Surgery Primary207T00000X01037785AIN

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 - Neurosurgery (IN)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients191
Services billed692 across 62 procedure codes
Paid by Medicare$209,483

Part D prescriptions in 2024

Prescriptions (claims)323 · 369 30-day fills
Patients149
Total drug cost$3,259
Generic share99% of claims

Medicare sources and data years

Education and affiliations

Medical schoolIndiana University School of Medicine
Graduation year1988
Medicare specialtyNeurosurgery

Medical group

Hospital affiliations

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$514.50 · 4 payments from 2 companies
  • 2024$127.36 · 1 payment from 1 company

Top paying companies in 2025

CompanyAmountPayments
Medtronic, Inc.$468.632
Abbvie Inc.$45.872

What the 2025 payments were for

  • Travel and Lodging$468.63 · 2 payments
  • Food and Beverage$45.87 · 2 payments

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

Other Neurological Surgery providers in Anderson

All Neurological Surgery providers in Indiana →