Quick answers
- Which hospitals does Halyna Prokopiv work at?
- Medicare's official clinician data lists Halyna Prokopiv at 1 hospital: Methodist Hospitals Inc. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Halyna Prokopiv see patients?
- Medicare's clinician data lists 3 practice locations, including Mishawaka, IN, Gary, IN and Merrillville, IN. Call before your visit to confirm the address.
- What is Halyna Prokopiv's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Halyna Prokopiv accept Medicare assignment?
- Yes. Medicare's clinician data says Halyna Prokopiv 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 Halyna Prokopiv?
- (574) 335-5000, as listed in official Medicare / NPI Registry data.
- What is Halyna Prokopiv's NPI number?
- 1083844542. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Halyna Prokopiv works
Medicare's Facility Affiliation Data lists Halyna Prokopiv at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Methodist Hospitals IncGary, IN · Acute Care Hospital · CCN 150002
Practice locations
Addresses where Halyna Prokopiv is enrolled with Medicare (CMS data updated 2026-10-02).
- 5215 Holy Cross PkwyMishawaka, IN 46545 (574) 335‑5000
- 600 Richard Gordon Hatcher BlvdGary, IN 46402 (219) 886‑4000
- 8701 BroadwayMerrillville, IN 46410 (219) 738‑5500
Group practices
Medicare enrollment lists Halyna Prokopiv as a member of this group (CMS data updated 2026-10-02).
- Sound Physicians of Indiana LLC78 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Mishawaka
Clinicians with the same Medicare primary specialty in Mishawaka, IN — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1978 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1083844542 |
| 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