Doctor profile · Federal record
Dr. Mark Filstein, MD
Specialist (CMS: Internal Medicine) · Brooklyn, NY
- NPI 1649396110
- 41 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
2422 Knapp St
Brooklyn, NY 112351006
(718) 934-6777 - Additional location
-
161 Madison Ave Rm 4E
New York, NY 100165461
(212) 481-4041
fax (212) 481-1008 - Mailing address
-
161 Madison Ave Rm 4E
New York, NY 100165461
Credentials & registration
- NPI registered
- March 2007 — 19 yrs on file
- Profile last updated
- October 30, 2025
- Year of graduation
- 1985 — 41 yrs since
- Specialty taxonomy
- 174400000X — NUCC code
- State license (1)
- New York #182093
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1649396110. Last verified May 11, 2026.Open Payments
Industry payments received
All-time total
$383
Transactions
9
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbvie INC. | 9 | $383.42 |
By nature of payment
Frequently asked questions
What is Dr. Mark Filstein's medical specialty?
Dr. Mark Filstein practices Specialist in Brooklyn, NY.
Where does Dr. Mark Filstein practice?
Dr. Mark Filstein practices at 2422 Knapp St, Brooklyn, NY 112351006. Office phone: 7189346777.
What is Dr. Mark Filstein's NPI?
Dr. Mark Filstein's National Provider Identifier (NPI) is 1649396110, issued by NPPES.
Does Dr. Mark Filstein accept Medicare assignment?
Dr. Mark Filstein does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.