Quick answers
- Which hospitals does John Ulahannan work at?
- Medicare's official clinician data lists John Ulahannan at 4 hospitals: Crouse Hospital, Oneida Health Hospital, Oswego Hospital and St Joseph's Hospital Health Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John Ulahannan see patients?
- Medicare's clinician data lists 1 practice location in Syracuse, NY. Call before your visit to confirm the address.
- What is John Ulahannan's specialty?
- Medicare lists Interventional Cardiology as the primary specialty, and also Cardiovascular Disease (Cardiology).
- Does John Ulahannan accept Medicare assignment?
- Yes. Medicare's clinician data says John Ulahannan 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 Ulahannan?
- (315) 470-7409, as listed in official Medicare / NPI Registry data.
- What is John Ulahannan's NPI number?
- 1750539482. 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 Ulahannan works
Medicare's Facility Affiliation Data lists John Ulahannan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Crouse HospitalSyracuse, NY · Acute Care Hospital · CCN 330203
- Oneida Health HospitalOneida, NY · Acute Care Hospital · CCN 330115
- Oswego HospitalOswego, NY · Acute Care Hospital · CCN 330218
- St Joseph's Hospital Health CenterSyracuse, NY · Acute Care Hospital · CCN 330140
Practice locations
Addresses where John Ulahannan is enrolled with Medicare (CMS data updated 2026-10-02).
- 739 Irving Ave, Suite 500Syracuse, NY 13210 (315) 470‑7409
Group practices
Medicare enrollment lists John Ulahannan as a member of this group (CMS data updated 2026-10-02).
- Crouse Medical Practice PLLC188 clinicians in the group
Specialties
Other interventional cardiologists in New York
Clinicians with the same Medicare primary specialty in New York — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2007 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1750539482 |
| 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