Quick answers
- Where does Dennis T. Dillon see patients?
- Medicare's clinician data lists 1 practice location in West Islip, NY. Call before your visit to confirm the address.
- What is Dennis T. Dillon's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Dennis T. Dillon accept Medicare assignment?
- Yes. Medicare's clinician data says Dennis T. Dillon 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 Dennis T. Dillon?
- (631) 422-9530, as listed in official Medicare / NPI Registry data.
- What is Dennis T. Dillon's NPI number?
- 1578661195. 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 Dennis T. Dillon is enrolled with Medicare (CMS data updated 2026-10-02).
- 340 Montauk Hwy, Suite 1West Islip, NY 11795 (631) 422‑9530
Group practices
Medicare enrollment lists Dennis T. Dillon as a member of this group (CMS data updated 2026-10-02).
- South Shore Orthopaedic Associates3 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in West Islip
Clinicians with the same Medicare primary specialty in West Islip, NY — not a recommendation.
Clinician information
| Graduation year | 1996 |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1578661195 |
| 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