Quick answers
- Which hospitals does Howard D. Merzel work at?
- Medicare's official clinician data lists Howard D. Merzel at 2 hospitals: Arnot Ogden Medical Center and Geneva General Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Howard D. Merzel see patients?
- Medicare's clinician data lists 3 practice locations, including Geneva, NY and Elmira, NY. Call before your visit to confirm the address.
- What is Howard D. Merzel's specialty?
- Medicare lists Gastroenterology as the primary specialty, and also Internal Medicine.
- Does Howard D. Merzel accept Medicare assignment?
- Yes. Medicare's clinician data says Howard D. Merzel 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 Howard D. Merzel?
- (315) 787-5310, as listed in official Medicare / NPI Registry data.
- What is Howard D. Merzel's NPI number?
- 1447233002. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Howard D. Merzel works
Medicare's Facility Affiliation Data lists Howard D. Merzel at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Arnot Ogden Medical CenterElmira, NY · Acute Care Hospital · CCN 330090
- Geneva General HospitalGeneva, NY · Acute Care Hospital · CCN 330058
Practice locations
Addresses where Howard D. Merzel is enrolled with Medicare (CMS data updated 2026-10-02).
- 1150 State Route 5 and 20Geneva, NY 14456 (315) 787‑5310
- 555 Saint Josephs BlvdElmira, NY 14901 (607) 733‑6541
- 555 Saint Josephs Blvd, Suite M2Elmira, NY 14901 (607) 734‑7121
Group practices
Medicare enrollment lists Howard D. Merzel as a member of these groups (CMS data updated 2026-10-02).
- Arnot Ogden Medical Center216 clinicians in the group
- FLH Medical PC46 clinicians in the group
Specialties
- Gastroenterologyprimary
- Internal Medicinealso
Other gastroenterologists in New York
Clinicians with the same Medicare primary specialty in New York — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Medical College Of Wisconsin |
| Graduation year | 1984 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1447233002 |
| 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