Quick answers
- Which hospitals does Erin E. Diem work at?
- Medicare's official clinician data lists Erin E. Diem at 5 hospitals: Ascension St Vincent Jennings, Columbus Regional Hospital, Decatur County Memorial Hospital, Major Hospital and Margaret Mary Community Hospital Inc. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Erin E. Diem see patients?
- Medicare's clinician data lists 4 practice locations, including New Castle, IN, Muncie, IN and Batesville, IN. Call before your visit to confirm the address.
- What is Erin E. Diem's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Erin E. Diem accept Medicare assignment?
- Yes. Medicare's clinician data says Erin E. Diem 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 Erin E. Diem?
- (765) 717-5399, as listed in official Medicare / NPI Registry data.
- What is Erin E. Diem's NPI number?
- 1588190755. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Erin E. Diem works
Medicare's Facility Affiliation Data lists Erin E. Diem at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Ascension St Vincent JenningsNorth Vernon, IN · Critical Access Hospital · CCN 151303
- Columbus Regional HospitalColumbus, IN · Acute Care Hospital · CCN 150112
- Decatur County Memorial HospitalGreensburg, IN · Critical Access Hospital · CCN 151332
- Major HospitalShelbyville, IN · Acute Care Hospital · CCN 150097
- Margaret Mary Community Hospital IncBatesville, IN · Critical Access Hospital · CCN 151329
Practice locations
Addresses where Erin E. Diem is enrolled with Medicare (CMS data updated 2026-10-02).
- 1007 N 16th StNew Castle, IN 47362 (765) 717‑5399
- 1107 S Tillotson AveMuncie, IN 47304 (765) 717‑5399
- 26 Six Pine Ranch RdBatesville, IN 47006 (812) 934‑6626
- 955 N Michigan Ave, 4 Dcmh Immediate CareGreensburg, IN 47240 (812) 662‑6450
Group practices
Medicare enrollment lists Erin E. Diem as a member of these groups (CMS data updated 2026-10-02).
- Decatur County Memorial Hospital129 clinicians in the group
- Medical Group of Indiana LLC9 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in New Castle
Clinicians with the same Medicare primary specialty in New Castle, IN — not a recommendation.
Clinician information
| Graduation year | 2017 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1588190755 |
| Corrections | Report 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians