Quick answers
- Which hospitals does Harry G. Demeo work at?
- Medicare's official clinician data lists Harry G. Demeo at 1 hospital: NYU Langone Hospitals. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Harry G. Demeo see patients?
- Medicare's clinician data lists 1 practice location in Brooklyn, NY. Call before your visit to confirm the address.
- What is Harry G. Demeo's specialty?
- Medicare lists Gastroenterology as the primary specialty, and also Internal Medicine.
- Does Harry G. Demeo accept Medicare assignment?
- Yes. Medicare's clinician data says Harry G. Demeo 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 Harry G. Demeo?
- (718) 745-0623, as listed in official Medicare / NPI Registry data.
- What is Harry G. Demeo's NPI number?
- 1245313709. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Harry G. Demeo works
Medicare's Facility Affiliation Data lists Harry G. Demeo at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- NYU Langone HospitalsNew York, NY · Acute Care Hospital · CCN 330214
Practice locations
Addresses where Harry G. Demeo is enrolled with Medicare (CMS data updated 2026-10-02).
- 9920 4th Ave, Suite 205Brooklyn, NY 11209 (718) 745‑0623
Group practices
Medicare enrollment lists Harry G. Demeo as a member of this group (CMS data updated 2026-10-02).
- Bay Ridge Gastroenterology, PLLC2 clinicians in the group
Specialties
- Gastroenterologyprimary
- Internal Medicinealso
Other gastroenterologists in Brooklyn
Clinicians with the same Medicare primary specialty in Brooklyn, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1981 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1245313709 |
| 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