Quick answers
- Where does Yannick Y. Grenier see patients?
- Medicare's clinician data lists 2 practice locations, including Ticonderoga, NY and Lake Placid, NY. Call before your visit to confirm the address.
- What is Yannick Y. Grenier's specialty?
- Medicare lists Neurosurgery as the primary specialty.
- Does Yannick Y. Grenier accept Medicare assignment?
- Yes. Medicare's clinician data says Yannick Y. Grenier 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 Yannick Y. Grenier?
- (518) 585-2831, as listed in official Medicare / NPI Registry data.
- What is Yannick Y. Grenier's NPI number?
- 1083654875. 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 Yannick Y. Grenier is enrolled with Medicare (CMS data updated 2026-10-02).
- 1019 Wicker StTiconderoga, NY 12883 (518) 585‑2831
- 185 Old Military RdLake Placid, NY 12946 (518) 523‑2464
Group practices
Medicare enrollment lists Yannick Y. Grenier as a member of this group (CMS data updated 2026-10-02).
- Empire Wound Physician Services PLLC7 clinicians in the group
Specialties
- Neurosurgeryprimary
Other neurosurgeons in New York
Clinicians with the same Medicare primary specialty in New York — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1993 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1083654875 |
| 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