Quick answers
- Which hospitals does Ann M. Defnet work at?
- Medicare's official clinician data lists Ann M. Defnet at 3 hospitals: Lenox Hill Hospital, North Shore University Hospital and Northwell Hospital Glen Cove. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Ann M. Defnet see patients?
- Medicare's clinician data lists 4 practice locations, including New York, NY, New Hyde Park, NY and Astoria, NY. Call before your visit to confirm the address.
- What is Ann M. Defnet's specialty?
- Medicare lists General Surgery as the primary specialty.
- Does Ann M. Defnet accept Medicare assignment?
- Yes. Medicare's clinician data says Ann M. Defnet 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 Ann M. Defnet?
- (212) 988-8269, as listed in official Medicare / NPI Registry data.
- What is Ann M. Defnet's NPI number?
- 1215298872. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Ann M. Defnet works
Medicare's Facility Affiliation Data lists Ann M. Defnet at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Lenox Hill HospitalNew York, NY · Acute Care Hospital · CCN 330119
- North Shore University HospitalManhasset, NY · Acute Care Hospital · CCN 330106
- Northwell Hospital Glen CoveGlen Cove, NY · Acute Care Hospital · CCN 330181
Practice locations
Addresses where Ann M. Defnet is enrolled with Medicare (CMS data updated 2026-10-02).
- 1060 5th Ave, Suite 1bNew York, NY 10128 (212) 988‑8269
- 27005 75th AveNew Hyde Park, NY 11040 (718) 470‑7000
- 3016 30th Dr, Suite 3bAstoria, NY 11102 (718) 626‑0707
- 40 Berry Hill RdOyster Bay, NY 11771 (718) 626‑0707
Group practices
Medicare enrollment lists Ann M. Defnet as a member of these groups (CMS data updated 2026-10-02).
- North Shore-Lij Medical PC6,440 clinicians in the group
- Surgical Specialists of Greater NY LLP13 clinicians in the group
- Related Surgical Specialties, PC12 clinicians in the group
Specialties
- General Surgeryprimary
Other general surgeons in New York
Clinicians with the same Medicare primary specialty in New York, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2012 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1215298872 |
| 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