Quick answers
- Which hospitals does Jack D. Markiewicz work at?
- Medicare's official clinician data lists Jack D. Markiewicz at 5 hospitals: Franciscan Health Michigan City, Goshen Hospital, Memorial Hospital of South Bend, Northwest Health - Starke and Northwest Health-La Porte. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Jack D. Markiewicz see patients?
- Medicare's clinician data lists 8 practice locations, including La Porte, IN, Knox, IN and Bremen, IN. Call before your visit to confirm the address.
- What is Jack D. Markiewicz's specialty?
- Medicare lists Diagnostic Radiology as the primary specialty.
- Does Jack D. Markiewicz accept Medicare assignment?
- Yes. Medicare's clinician data says Jack D. Markiewicz 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 Jack D. Markiewicz?
- (574) 258-1100, as listed in official Medicare / NPI Registry data.
- What is Jack D. Markiewicz's NPI number?
- 1003066325. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Jack D. Markiewicz works
Medicare's Facility Affiliation Data lists Jack D. Markiewicz at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Franciscan Health Michigan CityMichigan City, IN · Acute Care Hospital · CCN 150015
- Goshen HospitalGoshen, IN · Acute Care Hospital · CCN 150026
- Memorial Hospital of South BendSouth Bend, IN · Acute Care Hospital · CCN 150058
- Northwest Health - StarkeKnox, IN · Acute Care Hospital · CCN 150102
- Northwest Health-La PorteLa Porte, IN · Acute Care Hospital · CCN 150006
Practice locations
Addresses where Jack D. Markiewicz is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 8; the Medicare profile lists all.
- 10164 N Ruby Rd, Dr. Markiewicz HomeLa Porte, IN 46350 (574) 258‑1100
- 102 E Culver Rd, Northwest Health Starke HospitalKnox, IN 46534 (574) 772‑6231
- 1020 High RdBremen, IN 46506 (574) 546‑2211
- 1115 Professional DrGoshen, IN 46526 (574) 364‑4850
- 1135 Professional DrGoshen, IN 46526 (574) 364‑4000
Group practices
Medicare enrollment lists Jack D. Markiewicz as a member of this group (CMS data updated 2026-10-02).
- Radiology Inc34 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in La Porte
Clinicians with the same Medicare primary specialty in La Porte, IN — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2008 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1003066325 |
| 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