Doctor profile · Federal record

Dr. Tammy Castles, FNP-BC

Family Medicine Physician (CMS: Nurse Practitioner) · Family Nurse Practitioner · Nurse Practitioner · Hackettstown, NJ

  • NPI 1295517373
  • Accepts Medicare
  • 3 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
254B Mountain Ave Ste 100
Hackettstown, NJ 078402413
(908) 852-6400
Mailing address
Po Box 95000 Lb#7550
Philadelphia, PA 191957550

Credentials & registration

NPPES · NUCC
NPI registered
October 2023 — 3 yrs on file
Profile last updated
December 21, 2023
Year of graduation
2023 — 3 yrs since
Specialty taxonomy
207Q00000X — NUCC code
State license (1)
New Jersey #26NJ14936600

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1295517373. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$308
Transactions
18
Manufacturers
10
Payer (manufacturer) Industry Txns Amount
Exact Sciences Corporation 2 $54.90
Novo Nordisk Inc 3 $48.11
Lilly USA, LLC 3 $45.90
Merck Sharp & Dohme LLC 3 $45.81
Seqirus USA Inc 2 $34.12
AstraZeneca Pharmaceuticals LP 1 $17.79
GlaxoSmithKline, LLC. 1 $17.00
Otsuka America Pharmaceutical, Inc. 1 $16.49
Cumberland Pharmaceuticals, Inc. 1 $14.22
Paratek Pharmaceuticals, Inc. 1 $13.69

By nature of payment

Food and Beverage
$308

Frequently asked questions

Auto-generated from federal data
What is Dr. Tammy Castles's medical specialty?
Dr. Tammy Castles practices Family Medicine Physician in Hackettstown, NJ.
Where does Dr. Tammy Castles practice?
Dr. Tammy Castles practices at 254B Mountain Ave Ste 100, Hackettstown, NJ 078402413. Office phone: 9088526400.
What is Dr. Tammy Castles's NPI?
Dr. Tammy Castles's National Provider Identifier (NPI) is 1295517373, issued by NPPES.
Does Dr. Tammy Castles accept Medicare assignment?
Yes. Dr. Tammy Castles accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.