Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Hospitalist

Keith E. Mahin, DO

Works at hospitals in Indianapolis, IN · Lafayette, IN · Monticello, IN · Indiana

Summary

Keith E. Mahin, DO (Hospitalist) is listed by Medicare at 3 hospitals in Indianapolis, IN, Lafayette, IN and Monticello, IN. NPI 1770928608. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Keith E. Mahin, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

HospitalistPrimary specialty
YesAccepts Medicare assignment
13Years since medical school (graduated 2013)
Lincoln Medical College, EclecticMedical school
MaleGender (as listed)
IU Health Medical Group LLCGroup practice (+1 more)

Quick answers

Which hospitals does Keith E. Mahin work at?
Medicare's official clinician data lists Keith E. Mahin at 3 hospitals: Indiana University Health, Indiana University Health Arnett Hospital and Indiana University Health White Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Keith E. Mahin see patients?
Medicare's clinician data lists 2 practice locations, including Indianapolis, IN and Lafayette, IN. Call before your visit to confirm the address.
What is Keith E. Mahin's specialty?
Medicare lists Hospitalist as the primary specialty, and also Internal Medicine.
Does Keith E. Mahin accept Medicare assignment?
Yes. Medicare's clinician data says Keith E. Mahin accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Keith E. Mahin?
(888) 484-3258, as listed in official Medicare / NPI Registry data.
What is Keith E. Mahin's NPI number?
1770928608. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Keith E. Mahin works

Medicare's Facility Affiliation Data lists Keith E. Mahin at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Keith E. Mahin is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Keith E. Mahin as a member of these groups (CMS data updated 2026-10-02).

  • IU Health Medical Group LLC4,462 clinicians in the group
  • Arnett Clinic LLC390 clinicians in the group

Specialties

Find other Hospitalist doctors in Indiana →

Other hospitalists in Indianapolis

Clinicians with the same Medicare primary specialty in Indianapolis, IN — not a recommendation.

All hospitalists in Indianapolis →

Clinician information

CredentialDO
Medical schoolLincoln Medical College, Eclectic
Graduation year2013
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1770928608
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians