Quick answers
- Which hospitals does Mark E. Nielson work at?
- Medicare's official clinician data lists Mark E. Nielson at 1 hospital: Indiana University Health Ball Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark E. Nielson see patients?
- Medicare's clinician data lists 4 practice locations, including Indianapolis, IN, Plymouth, IN and Muncie, IN. Call before your visit to confirm the address.
- What is Mark E. Nielson's specialty?
- Medicare lists Anesthesiology as the primary specialty, and also Pain Management.
- Does Mark E. Nielson accept Medicare assignment?
- Yes. Medicare's clinician data says Mark E. Nielson 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 Mark E. Nielson?
- (888) 484-3258, as listed in official Medicare / NPI Registry data.
- What is Mark E. Nielson's NPI number?
- 1942407838. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mark E. Nielson works
Medicare's Facility Affiliation Data lists Mark E. Nielson at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Indiana University Health Ball Memorial HospitalMuncie, IN · Acute Care Hospital · CCN 150089
Practice locations
Addresses where Mark E. Nielson is enrolled with Medicare (CMS data updated 2026-10-02).
- 1701 N Senate BlvdIndianapolis, IN 46202 (888) 484‑3258
- 1915 Lake AvePlymouth, IN 46563 (574) 948‑4000
- 2401 W University AveMuncie, IN 47303 (765) 747‑3111
- 5215 Holy Cross PkwyMishawaka, IN 46545 (574) 335‑2443
Group practices
Medicare enrollment lists Mark E. Nielson as a member of these groups (CMS data updated 2026-10-02).
- IU Health Medical Group LLC4,462 clinicians in the group
- Cep America - Anesthesia PC849 clinicians in the group
- Indiana University Health Ball Memorial Physicians Inc232 clinicians in the group
Specialties
- Anesthesiologyprimary
- Pain Managementalso
Other anesthesiologists in Indianapolis
Clinicians with the same Medicare primary specialty in Indianapolis, IN — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Indiana University School Of Medicine |
| Graduation year | 2007 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1942407838 |
| 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