Quick answers
- Which hospitals does John Mastrangelo work at?
- Medicare's official clinician data lists John Mastrangelo at 5 hospitals: Adirondack Medical Center - Saranac Lake, Nathan Littauer Hospital, Our Lady of Lourdes Memorial Hospital, Inc, Saratoga Hospital and St Marys Healthcare. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John Mastrangelo see patients?
- Medicare's clinician data lists 22 practice locations, including Latham, NY, Binghamton, NY and Lake Placid, NY. Call before your visit to confirm the address.
- What is John Mastrangelo's specialty?
- Medicare lists Diagnostic Radiology as the primary specialty.
- Does John Mastrangelo accept Medicare assignment?
- Yes. Medicare's clinician data says John Mastrangelo 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 Mastrangelo?
- (516) 536-2800, as listed in official Medicare / NPI Registry data.
- What is John Mastrangelo's NPI number?
- 1790986230. 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 Mastrangelo works
Medicare's Facility Affiliation Data lists John Mastrangelo at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Adirondack Medical Center - Saranac LakeSaranac Lake, NY · Acute Care Hospital · CCN 330079
- Nathan Littauer HospitalGloversville, NY · Acute Care Hospital · CCN 330276
- Our Lady of Lourdes Memorial Hospital, IncBinghamton, NY · Acute Care Hospital · CCN 330011
- Saratoga HospitalSaratoga Springs, NY · Acute Care Hospital · CCN 330222
- St Marys HealthcareAmsterdam, NY · Acute Care Hospital · CCN 330047
Practice locations
Addresses where John Mastrangelo is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 22; the Medicare profile lists all.
- 16 Henkes LnLatham, NY 12110 (516) 536‑2800
- 169 Riveride DrBinghamton, NY 13905 (607) 798‑5111
- 17 Chenango Bridge RdBinghamton, NY 13901 (607) 772‑2995
- 203 Old Military RdLake Placid, NY 12946 (518) 650‑7503
- 211 Church StSaratoga Springs, NY 12866 (518) 583‑8461
Group practices
Medicare enrollment lists John Mastrangelo as a member of these groups (CMS data updated 2026-10-02).
- True North Medical Group PC188 clinicians in the group
- Millennium Medical Imaging PC37 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Latham
Clinicians with the same Medicare primary specialty in Latham, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Albany Medical College Of Union University |
| Graduation year | 2006 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1790986230 |
| 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