Quick answers
- Where does John D. Zimmerly see patients?
- Medicare's clinician data lists 1 practice location in Sayville, NY. Call before your visit to confirm the address.
- What is John D. Zimmerly's specialty?
- Medicare lists Obstetrics/Gynecology as the primary specialty.
- Does John D. Zimmerly accept Medicare assignment?
- Medicare's clinician data says John D. Zimmerly 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 John D. Zimmerly?
- (631) 589-3131, as listed in official Medicare / NPI Registry data.
- What is John D. Zimmerly's NPI number?
- 1841362316. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where John D. Zimmerly is enrolled with Medicare (CMS data updated 2026-10-02).
- 160 Middle Rd, Suite 1Sayville, NY 11782 (631) 589‑3131
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in New York
Clinicians with the same Medicare primary specialty in New York — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | State University Of New York At Buffalo School Of Medicine |
| Graduation year | 1977 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1841362316 |
| 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
- 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