Quick answers
- Which hospitals does Michael Nissen work at?
- Medicare's official clinician data lists Michael Nissen at 1 hospital: New York-Presbyterian Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Michael Nissen see patients?
- Medicare's clinician data lists 2 practice locations, including New York, NY. Call before your visit to confirm the address.
- What is Michael Nissen's specialty?
- Medicare lists Ophthalmology as the primary specialty.
- Does Michael Nissen accept Medicare assignment?
- Yes. Medicare's clinician data says Michael Nissen 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 Michael Nissen?
- (212) 772-7000, as listed in official Medicare / NPI Registry data.
- What is Michael Nissen's NPI number?
- 1609875442. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Michael Nissen works
Medicare's Facility Affiliation Data lists Michael Nissen at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- New York-Presbyterian HospitalNew York, NY · Acute Care Hospital · CCN 330101
Practice locations
Addresses where Michael Nissen is enrolled with Medicare (CMS data updated 2026-10-02).
- 1317 3rd AveNew York, NY 10021 (212) 772‑7000
- 1317 3rd Ave, Ground FloorNew York, NY 10021
Specialties
- Ophthalmologyprimary
Other ophthalmologists in New York
Clinicians with the same Medicare primary specialty in New York, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Albany Medical College Of Union University |
| Graduation year | 1990 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1609875442 |
| 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