Doctor profile · Federal record

Dr. Stephen Marshall

Psychiatric/Mental Health Nurse Practitioner (CMS: Nurse Practitioner) · Brookhaven, NY

  • NPI 1700590023
  • 4 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
9 Newey Ln
Brookhaven, NY 117199634
(631) 946-9800

Credentials & registration

NPPES · NUCC
NPI registered
January 2023 — 3 yrs on file
Year of graduation
2022 — 4 yrs since
Specialty taxonomy
363LP0808X — NUCC code
State license (1)
New York #F40445-01

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1700590023. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$33
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Almatica Pharma LLC 1 $17.50
Teva Pharmaceuticals USA, INC. 1 $15.56

By nature of payment

Food and Beverage
$33

Frequently asked questions

Auto-generated from federal data
What is Dr. Stephen Marshall's medical specialty?
Dr. Stephen Marshall practices Psychiatric/Mental Health Nurse Practitioner in Brookhaven, NY.
Where does Dr. Stephen Marshall practice?
Dr. Stephen Marshall practices at 9 Newey Ln, Brookhaven, NY 117199634. Office phone: 6319469800.
What is Dr. Stephen Marshall's NPI?
Dr. Stephen Marshall's National Provider Identifier (NPI) is 1700590023, issued by NPPES.
Does Dr. Stephen Marshall accept Medicare assignment?
Dr. Stephen Marshall does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.