Doctor profile · Federal record

Dr. Ian Marshall, MD

Pediatric Endocrinology Physician (CMS: Pediatric Medicine) · Pediatric Endocrinology Physician · New Brunswick, NJ

  • NPI 1396760450
  • Accepts Medicare
  • 35 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
89 French Street, Pediatric Endocrinology Suite 2300
New Brunswick, NJ 08901
(732) 235-6230
Mailing address
66 West Gilbert St
Red Bank, NJ 07701

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
July 23, 2021
Year of graduation
1991 — 35 yrs since
Specialty taxonomy
2080P0205X — NUCC code
State licenses (2)
New Jersey #25MA07638500 · New Jersey #MA76385
Medicaid
NJ #0075272

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1396760450. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$12,192
Transactions
19
Manufacturers
6
Payer (manufacturer) Industry Txns Amount
Neurocrine Biosciences, INC. 12 $11,454.52
Sanofi-Aventis U.S. LLC 2 $224.26
Tolmar, INC. 1 $175.84
Alexion Pharmaceuticals, INC. 1 $115.15
Tandem Diabetes Care, INC. 1 $114.33
BioMarin Pharmaceutical INC. 2 $107.89

By nature of payment

Consulting Fee
$10,000
Travel and Lodging
$1,240
Food and Beverage
$952

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
11
Patients
0
Total drug cost
$4,785
Drug Type Claims Patients Total cost
Myrbetriq (Mirabegron) Brand 11 0 $4,785

Frequently asked questions

Auto-generated from federal data
What is Dr. Ian Marshall's medical specialty?
Dr. Ian Marshall practices Pediatric Endocrinology Physician in New Brunswick, NJ.
Where does Dr. Ian Marshall practice?
Dr. Ian Marshall practices at 89 French Street, New Brunswick, NJ 08901. Office phone: 7322356230.
What is Dr. Ian Marshall's NPI?
Dr. Ian Marshall's National Provider Identifier (NPI) is 1396760450, issued by NPPES.
Does Dr. Ian Marshall accept Medicare assignment?
Yes. Dr. Ian Marshall accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.