Doctor profile · Federal record
Dr. Marc Fenster, D.M.D.
General Practice Dentistry · Smithtown, NY
- NPI 1821317223
- 16 yrs on file
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
50 Route 111 Ste 212
Smithtown, NY 117873700
(631) 724-6960
fax (631) 724-6886
Credentials & registration
- NPI registered
- May 2010 — 16 yrs on file
- Specialty taxonomy
- 1223G0001X — NUCC code
- State license (1)
- New York #047688
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1821317223. Last verified May 11, 2026.Open Payments
Industry payments received
All-time total
$154
Transactions
5
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Lilly USA, LLC | 4 | $114.65 | |
| Janssen Biotech, INC. | 1 | $39.11 |
By nature of payment
Frequently asked questions
What is Dr. Marc Fenster's medical specialty?
Dr. Marc Fenster practices General Practice Dentistry in Smithtown, NY.
Where does Dr. Marc Fenster practice?
Dr. Marc Fenster practices at 50 Route 111 Ste 212, Smithtown, NY 117873700. Office phone: 6317246960.
What is Dr. Marc Fenster's NPI?
Dr. Marc Fenster's National Provider Identifier (NPI) is 1821317223, issued by NPPES.