Quick answers
- Which hospitals does Mark O. Carter work at?
- Medicare's official clinician data lists Mark O. Carter at 1 hospital: St Mary Medical Center Inc. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark O. Carter see patients?
- Medicare's clinician data lists 2 practice locations, including Hobart, IN and Chesterton, IN. Call before your visit to confirm the address.
- What is Mark O. Carter's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Mark O. Carter accept Medicare assignment?
- Yes. Medicare's clinician data says Mark O. Carter 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 O. Carter?
- (219) 942-1145, as listed in official Medicare / NPI Registry data.
- What is Mark O. Carter's NPI number?
- 1831125806. 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 O. Carter works
Medicare's Facility Affiliation Data lists Mark O. Carter at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- St Mary Medical Center IncHobart, IN · Acute Care Hospital · CCN 150034
Practice locations
Addresses where Mark O. Carter is enrolled with Medicare (CMS data updated 2026-10-02).
- 164 Bracken PkwyHobart, IN 46342 (219) 942‑1145
- 425 Sand Creek Dr, Suite CChesterton, IN 46304
Group practices
Medicare enrollment lists Mark O. Carter as a member of these groups (CMS data updated 2026-10-02).
- Community Care Network Inc379 clinicians in the group
- Chesterton Physical Therapy Inc186 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Hobart
Clinicians with the same Medicare primary specialty in Hobart, IN — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1982 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1831125806 |
| 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