Doctor profile · Federal record

Dr. Dennis Dillon, PA

Physician Assistant · Orthopaedic Surgery Physician · West Islip, NY

  • NPI 1578661195
  • Accepts Medicare
  • 30 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
400 Montauk Hwy, Suite 108
West Islip, NY 117954429
(631) 482-9192
fax (631) 482-9195
Mailing address
340 Montauk Hwy, Ste 1
West Islip, NY 117954437

Credentials & registration

NPPES · NUCC
NPI registered
September 2006 — 20 yrs on file
Profile last updated
January 15, 2021
Year of graduation
1996 — 30 yrs since
Specialty taxonomy
363A00000X — NUCC code
State license (1)
New York #006337

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1578661195. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$45
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
DePuy Synthes Sales Inc. 1 $28.64
Bioventus LLC 1 $16.44

By nature of payment

Food and Beverage
$45

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
298
Patients
181
Total drug cost
$1,656
Drug Type Claims Patients Total cost
Meloxicam Generic 196 96 $834
Methylprednisolone Generic 79 68 $691
Tramadol Hcl Generic 23 17 $132

Frequently asked questions

Auto-generated from federal data
What is Dr. Dennis Dillon's medical specialty?
Dr. Dennis Dillon practices Physician Assistant in West Islip, NY.
Where does Dr. Dennis Dillon practice?
Dr. Dennis Dillon practices at 400 Montauk Hwy, West Islip, NY 117954429. Office phone: 6314829192.
What is Dr. Dennis Dillon's NPI?
Dr. Dennis Dillon's National Provider Identifier (NPI) is 1578661195, issued by NPPES.
Does Dr. Dennis Dillon accept Medicare assignment?
Yes. Dr. Dennis Dillon accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.