Quick answers
- Which hospitals does David Ellis work at?
- Medicare's official clinician data lists David Ellis at 4 hospitals: Bon Secours Community Hospital, Garnet Health Medical Center, St Anthony Community Hospital and Westchester Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does David Ellis see patients?
- Medicare's clinician data lists 7 practice locations, including Chester, NY, Warwick, NY and Florida, NY. Call before your visit to confirm the address.
- What is David Ellis's specialty?
- Medicare lists Gastroenterology as the primary specialty, and also Internal Medicine.
- Does David Ellis accept Medicare assignment?
- Yes. Medicare's clinician data says David Ellis 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.
- Does David Ellis offer telehealth?
- Medicare's clinician data says David Ellis offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for David Ellis?
- (845) 651-1400, as listed in official Medicare / NPI Registry data.
- What is David Ellis's NPI number?
- 1891792214. 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 Ellis works
Medicare's Facility Affiliation Data lists David Ellis at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Bon Secours Community HospitalPort Jervis, NY · Acute Care Hospital · CCN 330135
- Garnet Health Medical CenterMiddletown, NY · Acute Care Hospital · CCN 330126
- St Anthony Community HospitalWarwick, NY · Acute Care Hospital · CCN 330205
- Westchester Medical CenterValhalla, NY · Acute Care Hospital · CCN 330234
Practice locations
Addresses where David Ellis is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 7; the Medicare profile lists all.
- 1460 State Route 17mChester, NY 10918 (845) 651‑1400
- 1460 State Route 17m, Suite AChester, NY 10918 (845) 469‑4211
- 15 Maple AveWarwick, NY 10990 (845) 986‑2276
- 21 Edward J Lempka Dr, Family PracticeFlorida, NY 10921 (845) 651‑1777
- 277 Quassaick AveNew Windsor, NY 12553 (845) 565‑5630
Group practices
Medicare enrollment lists David Ellis as a member of this group (CMS data updated 2026-10-02).
- Horizon Medical Group PC75 clinicians in the group
Specialties
- Gastroenterologyprimary
- Internal Medicinealso
Other gastroenterologists in Chester
Clinicians with the same Medicare primary specialty in Chester, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Albert Einstein College Of Medicine Of Yeshiva University |
| Graduation year | 1988 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1891792214 |
| 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