Quick answers
- Which hospitals does David A. Gentile work at?
- Medicare's official clinician data lists David A. Gentile at 1 hospital: John T Mather Memorial Hospital of Port Jefferson. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does David A. Gentile see patients?
- Medicare's clinician data lists 1 practice location in Rocky Point, NY. Call before your visit to confirm the address.
- What is David A. Gentile's specialty?
- Medicare lists Osteopathic Manipulative Medicine as the primary specialty, and also Family Practice.
- Does David A. Gentile accept Medicare assignment?
- Medicare's clinician data says David A. Gentile may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- Does David A. Gentile offer telehealth?
- Medicare's clinician data says David A. Gentile offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for David A. Gentile?
- (631) 821-4200, as listed in official Medicare / NPI Registry data.
- What is David A. Gentile's NPI number?
- 1821102732. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where David A. Gentile works
Medicare's Facility Affiliation Data lists David A. Gentile at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- John T Mather Memorial Hospital of Port JeffersonPort Jefferson, NY · Acute Care Hospital · CCN 330185
Practice locations
Addresses where David A. Gentile is enrolled with Medicare (CMS data updated 2026-10-02).
- 797 Route 25aRocky Point, NY 11778 (631) 821‑4200
Specialties
Find other Osteopathic Manipulative Medicine doctors in New York →
Other osteopathic manipulative medicine doctors in New York
Clinicians with the same Medicare primary specialty in New York — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 1999 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1821102732 |
| 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