Quick answers
- Which hospitals does John Gianetti work at?
- Medicare's official clinician data lists John Gianetti at 5 hospitals: HMHP St Elizabeth Boardman Health Center, Meadville Medical Center, MH St Elizabeth Youngstown Hospital, Salem Regional Medical Center and Surgical Hospital at Southwoods. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John Gianetti see patients?
- Medicare's clinician data lists 2 practice locations, including Niles, OH and Youngstown, OH. Call before your visit to confirm the address.
- What is John Gianetti's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does John Gianetti accept Medicare assignment?
- Yes. Medicare's clinician data says John Gianetti 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 John Gianetti?
- (330) 505-1362, as listed in official Medicare / NPI Registry data.
- What is John Gianetti's NPI number?
- 1437132933. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where John Gianetti works
Medicare's Facility Affiliation Data lists John Gianetti at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- HMHP St Elizabeth Boardman Health CenterBoardman, OH · Acute Care Hospital · CCN 360276
- Meadville Medical CenterMeadville, PA · Acute Care Hospital · CCN 390113
- MH St Elizabeth Youngstown HospitalYoungstown, OH · Acute Care Hospital · CCN 360064
- Salem Regional Medical CenterSalem, OH · Acute Care Hospital · CCN 360185
- Surgical Hospital at SouthwoodsYoungstown, OH · Acute Care Hospital · CCN 360352
Practice locations
Addresses where John Gianetti is enrolled with Medicare (CMS data updated 2026-10-02).
- 656 Youngstown Warren RdNiles, OH 44446 (330) 505‑1362
- 7629 Market St, Suite 100Youngstown, OH 44512 (330) 729‑8015
Group practices
Medicare enrollment lists John Gianetti as a member of these groups (CMS data updated 2026-10-02).
- Triad Health Services LLC258 clinicians in the group
- Novacare Rehabilitation of Ohio Inc80 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Niles
Clinicians with the same Medicare primary specialty in Niles, OH — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Northeastern Ohio University College Of Medicine |
| Graduation year | 1988 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1437132933 |
| 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