Quick answers
- Where does John J. Grillo see patients?
- Medicare's clinician data lists 3 practice locations, including New York, NY. Call before your visit to confirm the address.
- What is John J. Grillo's specialty?
- Medicare lists Anesthesiology as the primary specialty.
- Does John J. Grillo accept Medicare assignment?
- Medicare's clinician data says John J. Grillo may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is the phone number for John J. Grillo?
- (212) 861-2000, as listed in official Medicare / NPI Registry data.
- What is John J. Grillo's NPI number?
- 1104919265. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where John J. Grillo is enrolled with Medicare (CMS data updated 2026-10-02).
- 12 E 86th StNew York, NY 10028 (212) 861‑2000
- 75 W End Ave, Apt P33CNew York, NY 10023
- 920 Park AveNew York, NY 10028 (212) 535‑3400
Specialties
- Anesthesiologyprimary
Other anesthesiologists in New York
Clinicians with the same Medicare primary specialty in New York, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1985 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1104919265 |
| 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
- 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