Quick answers
- Which hospitals does James G. Mazalewski work at?
- Medicare's official clinician data lists James G. Mazalewski at 5 hospitals: Good Samaritan Hospital Medical Center, Owensboro Health Regional Hospital, St Catherine of Siena Hospital, St Francis Hospital - The Heart Center and St John's Episcopal Hospital at South Shore. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does James G. Mazalewski see patients?
- Medicare's clinician data lists 23 practice locations, including Flint, MI, Melbourne, FL and Fort Myers, FL. Call before your visit to confirm the address.
- What is James G. Mazalewski's specialty?
- Medicare lists Diagnostic Radiology as the primary specialty.
- Does James G. Mazalewski accept Medicare assignment?
- Yes. Medicare's clinician data says James G. Mazalewski 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 James G. Mazalewski?
- (810) 262-4787, as listed in official Medicare / NPI Registry data.
- What is James G. Mazalewski's NPI number?
- 1578674248. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where James G. Mazalewski works
Medicare's Facility Affiliation Data lists James G. Mazalewski at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Good Samaritan Hospital Medical CenterWest Islip, NY · Acute Care Hospital · CCN 330286
- Owensboro Health Regional HospitalOwensboro, KY · Acute Care Hospital · CCN 180038
- St Catherine of Siena HospitalSmithtown, NY · Acute Care Hospital · CCN 330401
- St Francis Hospital - The Heart CenterRoslyn, NY · Acute Care Hospital · CCN 330182
- St John's Episcopal Hospital at South ShoreFar Rockaway, NY · Acute Care Hospital · CCN 330395
Practice locations
Addresses where James G. Mazalewski is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 23; the Medicare profile lists all.
- 1 Hurley Plasa, 9w Hurley Maternal Fetal MedicineFlint, MI 48503 (810) 262‑4787
- 1 Hurley PlzFlint, MI 48503
- 1223 Gateway DrMelbourne, FL 32901 (321) 725‑4500
- 1318 La Faunce WayFort Myers, FL 33919 · Alaska Radiology Associates Inc (907) 339‑9455
- 1350 Hickory StMelbourne, FL 32901 · Brevard Physician Associates PLLC (321) 434‑7000
Group practices
Medicare enrollment lists James G. Mazalewski as a member of these groups (CMS data updated 2026-10-02).
- Mori Bean and Brooks Inc977 clinicians in the group
- Health First Medical Group, LLC711 clinicians in the group
- Radiology Alliance PC455 clinicians in the group
- Northside Radiology Associates LLC385 clinicians in the group
- Hurley Medical Center342 clinicians in the group
- Imaging Associates of Indiana PC301 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Flint
Clinicians with the same Medicare primary specialty in Flint, MI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of South Florida College Of Medicine |
| Graduation year | 1990 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1578674248 |
| 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