Quick answers
- Which hospitals does Cassandra Castma work at?
- Medicare's official clinician data lists Cassandra Castma at 3 hospitals: Montefiore Medical Center, St Francis Hospital - The Heart Center and Strong Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Cassandra Castma see patients?
- Medicare's clinician data lists 3 practice locations, including Rockville Center, NY, Bronx, NY and Rochester, NY. Call before your visit to confirm the address.
- What is Cassandra Castma's specialty?
- Medicare lists Certified Registered Nurse Anesthetist (CRNA) as the primary specialty.
- Does Cassandra Castma accept Medicare assignment?
- Medicare's clinician data says Cassandra Castma 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 Cassandra Castma?
- (516) 627-6624, as listed in official Medicare / NPI Registry data.
- What is Cassandra Castma's NPI number?
- 1437950474. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Cassandra Castma works
Medicare's Facility Affiliation Data lists Cassandra Castma at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Montefiore Medical CenterBronx, NY · Acute Care Hospital · CCN 330059
- St Francis Hospital - The Heart CenterRoslyn, NY · Acute Care Hospital · CCN 330182
- Strong Memorial HospitalRochester, NY · Acute Care Hospital · CCN 330285
Practice locations
Addresses where Cassandra Castma is enrolled with Medicare (CMS data updated 2026-10-02).
- 1000 N Village AveRockville Center, NY 11570 (516) 627‑6624
- 111 E 210th StBronx, NY 10467
- 601 Elmwood AveRochester, NY 14642 (585) 275‑2141
Group practices
Medicare enrollment lists Cassandra Castma as a member of these groups (CMS data updated 2026-10-02).
- Montefiore Medical Center2,820 clinicians in the group
- U of R Anesthesiology Group347 clinicians in the group
- New York Cardiovascular Anesthesiologists, P.C.134 clinicians in the group
Specialties
Find other clinicians: Certified Registered Nurse Anesthetist (CRNA), New York →
Other nurse anesthetists in Rockville Center
Clinicians with the same Medicare primary specialty in Rockville Center, NY — not a recommendation.
Clinician information
| Credential | CNA |
|---|---|
| Graduation year | 2024 |
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1437950474 |
| 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