Quick answers
- Which hospitals does Robert A. Schwaner work at?
- Medicare's official clinician data lists Robert A. Schwaner at 2 hospitals: St Catherine of Siena Hospital and Suny/Stony Brook University Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Robert A. Schwaner see patients?
- Medicare's clinician data lists 2 practice locations, including Stony Brook, NY and Smithtown, NY. Call before your visit to confirm the address.
- What is Robert A. Schwaner's specialty?
- Medicare lists Medical Toxicology as the primary specialty, and also Emergency Medicine.
- Does Robert A. Schwaner accept Medicare assignment?
- Yes. Medicare's clinician data says Robert A. Schwaner 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 Robert A. Schwaner?
- (631) 444-6000, as listed in official Medicare / NPI Registry data.
- What is Robert A. Schwaner's NPI number?
- 1902959794. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Robert A. Schwaner works
Medicare's Facility Affiliation Data lists Robert A. Schwaner at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- St Catherine of Siena HospitalSmithtown, NY · Acute Care Hospital · CCN 330401
- Suny/Stony Brook University HospitalStony Brook, NY · Acute Care Hospital · CCN 330393
Practice locations
Addresses where Robert A. Schwaner is enrolled with Medicare (CMS data updated 2026-10-02).
- 100 Nicolls RdStony Brook, NY 11794 (631) 444‑6000
- 50 Route 25aSmithtown, NY 11787 (240) 686‑2300
Group practices
Medicare enrollment lists Robert A. Schwaner as a member of these groups (CMS data updated 2026-10-02).
- Siena Emergency Medical Services PC14 clinicians in the group
- Stony Brook Emergency Physicians, University Faculty Practice Corporat7 clinicians in the group
Specialties
- Medical Toxicologyprimary
- Emergency Medicinealso
Other medical toxicologists in New York
Clinicians with the same Medicare primary specialty in New York — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Loyola University Of Chicago, Stritch School Of Medicine |
| Graduation year | 2000 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1902959794 |
| 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