Quick answers
- Where does John E. Shallat see patients?
- Medicare's clinician data lists 2 practice locations, including Deer Park, NY and Rocky Point, NY. Call before your visit to confirm the address.
- What is John E. Shallat's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does John E. Shallat accept Medicare assignment?
- Yes. Medicare's clinician data says John E. Shallat 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 John E. Shallat?
- (631) 254-5900, as listed in official Medicare / NPI Registry data.
- What is John E. Shallat's NPI number?
- 1538379599. 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 E. Shallat is enrolled with Medicare (CMS data updated 2026-10-02).
- 1930 Deer Park AveDeer Park, NY 11729 (631) 254‑5900
- 47 Route 25aRocky Point, NY 11778 (631) 821‑5900
Group practices
Medicare enrollment lists John E. Shallat as a member of this group (CMS data updated 2026-10-02).
- City Medical of Upper East Side PLLC658 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Deer Park
Clinicians with the same Medicare primary specialty in Deer Park, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Cincinnati College Of Medicine |
| Graduation year | 1998 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1538379599 |
| 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