Quick answers
- Which hospitals does John Mongan work at?
- Medicare's official clinician data lists John Mongan at 3 hospitals: Albany Medical Center Hospital, Glens Falls Hospital and Saratoga Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John Mongan see patients?
- Medicare's clinician data lists 2 practice locations, including Saratoga Springs, NY and Granville, NY. Call before your visit to confirm the address.
- What is John Mongan's specialty?
- Medicare lists Internal Medicine as the primary specialty, and also Hematology/Oncology.
- Does John Mongan accept Medicare assignment?
- Yes. Medicare's clinician data says John Mongan 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.
- Does John Mongan offer telehealth?
- Medicare's clinician data says John Mongan offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for John Mongan?
- (518) 226-6000, as listed in official Medicare / NPI Registry data.
- What is John Mongan's NPI number?
- 1134235765. 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 Mongan works
Medicare's Facility Affiliation Data lists John Mongan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Albany Medical Center HospitalAlbany, NY · Acute Care Hospital · CCN 330013
- Glens Falls HospitalGlens Falls, NY · Acute Care Hospital · CCN 330191
- Saratoga HospitalSaratoga Springs, NY · Acute Care Hospital · CCN 330222
Practice locations
Addresses where John Mongan is enrolled with Medicare (CMS data updated 2026-10-02).
- 211 Church StSaratoga Springs, NY 12866 (518) 226‑6000
- 79 N St, Granville Medical CenterGranville, NY 12832 (518) 642‑0612
Group practices
Medicare enrollment lists John Mongan as a member of this group (CMS data updated 2026-10-02).
- Glens Falls Hospital Inc178 clinicians in the group
Specialties
- Internal Medicineprimary
- Hematology/Oncologyalso
Other internal medicine doctors in Saratoga Springs
Clinicians with the same Medicare primary specialty in Saratoga Springs, NY — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Philadelphia College Of Osteopathic Medicine |
| Graduation year | 2005 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1134235765 |
| 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