Quick answers
- Which hospitals does Michael S. Kaplan work at?
- Medicare's official clinician data lists Michael S. Kaplan at 1 hospital: Suny/Stony Brook University Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Michael S. Kaplan see patients?
- Medicare's clinician data lists 1 practice location in Smithtown, NY. Call before your visit to confirm the address.
- What is Michael S. Kaplan's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Michael S. Kaplan accept Medicare assignment?
- Medicare's clinician data says Michael S. Kaplan 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 Michael S. Kaplan?
- (631) 366-2333, as listed in official Medicare / NPI Registry data.
- What is Michael S. Kaplan's NPI number?
- 1841298593. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Michael S. Kaplan works
Medicare's Facility Affiliation Data lists Michael S. Kaplan 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 Michael S. Kaplan is enrolled with Medicare (CMS data updated 2026-10-02).
- 329 E Main St, Suite 9Smithtown, NY 11787 (631) 366‑2333
Group practices
Medicare enrollment lists Michael S. Kaplan as a member of this group (CMS data updated 2026-10-02).
- Dr Michael Kaplan DO PC2 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Smithtown
Clinicians with the same Medicare primary specialty in Smithtown, NY — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | New York College Of Osteo Medicine Of New York Institute Of Technology |
| Graduation year | 1996 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1841298593 |
| 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