Quick answers
- Which hospitals does Anne M. Klassert work at?
- Medicare's official clinician data lists Anne M. Klassert at 1 hospital: Suny/Stony Brook University Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Anne M. Klassert see patients?
- Medicare's clinician data lists 2 practice locations, including East Setauket, NY and Stony Brook, NY. Call before your visit to confirm the address.
- What is Anne M. Klassert's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Anne M. Klassert accept Medicare assignment?
- Yes. Medicare's clinician data says Anne M. Klassert 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 Anne M. Klassert?
- (631) 444-6270, as listed in official Medicare / NPI Registry data.
- What is Anne M. Klassert's NPI number?
- 1467448985. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Anne M. Klassert works
Medicare's Facility Affiliation Data lists Anne M. Klassert at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Suny/Stony Brook University HospitalStony Brook, NY · Acute Care Hospital · CCN 330393
Practice locations
Addresses where Anne M. Klassert is enrolled with Medicare (CMS data updated 2026-10-02).
- 24 Research Way, Suite 500East Setauket, NY 11733 (631) 444‑6270
- P O Box, Suite 1554Stony Brook, NY 11790
Group practices
Medicare enrollment lists Anne M. Klassert as a member of this group (CMS data updated 2026-10-02).
- Stony Brook Urology University Faculty Practice Corporation39 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in East Setauket
Clinicians with the same Medicare primary specialty in East Setauket, NY — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 1993 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1467448985 |
| 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