Quick answers
- Which hospitals does Guy J. Schwartz work at?
- Medicare's official clinician data lists Guy J. Schwartz at 2 hospitals: St Charles Hospital and Suny/Stony Brook University Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Guy J. Schwartz see patients?
- Medicare's clinician data lists 2 practice locations, including Stony Brook, NY. Call before your visit to confirm the address.
- What is Guy J. Schwartz's specialty?
- Medicare lists Neurology as the primary specialty.
- Does Guy J. Schwartz accept Medicare assignment?
- Yes. Medicare's clinician data says Guy J. Schwartz 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.
- Does Guy J. Schwartz offer telehealth?
- Medicare's clinician data says Guy J. Schwartz offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Guy J. Schwartz?
- (631) 444-2599, as listed in official Medicare / NPI Registry data.
- What is Guy J. Schwartz's NPI number?
- 1265592943. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Guy J. Schwartz works
Medicare's Facility Affiliation Data lists Guy J. Schwartz at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- St Charles HospitalPort Jefferson, NY · Acute Care Hospital · CCN 330246
- Suny/Stony Brook University HospitalStony Brook, NY · Acute Care Hospital · CCN 330393
Practice locations
Addresses where Guy J. Schwartz is enrolled with Medicare (CMS data updated 2026-10-02).
- 100 Nicolls RdStony Brook, NY 11794 (631) 444‑2599
- Lauterbur DrStony Brook, NY 11794 (631) 638‑1000
Group practices
Medicare enrollment lists Guy J. Schwartz as a member of this group (CMS data updated 2026-10-02).
- Neurology Associates of Stony Brook, University Faculty Practice Corpo57 clinicians in the group
Specialties
- Neurologyprimary
Other neurologists in Stony Brook
Clinicians with the same Medicare primary specialty in Stony Brook, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2002 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1265592943 |
| 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