Quick answers
- Where does Glenn Y. Castaneda see patients?
- Medicare's clinician data lists 2 practice locations, including Fishkill, NY and Poughkeepsie, NY. Call before your visit to confirm the address.
- What is Glenn Y. Castaneda's specialty?
- Medicare lists Neurology as the primary specialty, and also Psychiatry.
- Does Glenn Y. Castaneda accept Medicare assignment?
- Yes. Medicare's clinician data says Glenn Y. Castaneda 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 Glenn Y. Castaneda?
- (845) 452-9750, as listed in official Medicare / NPI Registry data.
- What is Glenn Y. Castaneda's NPI number?
- 1821090333. 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 Glenn Y. Castaneda is enrolled with Medicare (CMS data updated 2026-10-02).
- 200 Westage Bus Ctr Dr, Suite 324Fishkill, NY 12524 (845) 452‑9750
- 21 Fox StPoughkeepsie, NY 12601 (845) 452‑9750
Group practices
Medicare enrollment lists Glenn Y. Castaneda as a member of this group (CMS data updated 2026-10-02).
- Eriver Neurology of New York LLC4 clinicians in the group
Specialties
- Neurologyprimary
- Psychiatryalso
Other neurologists in New York
Clinicians with the same Medicare primary specialty in New York — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1989 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1821090333 |
| 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