Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Carolyn J Horowitz, MD

Radiation Oncology Physician in Sewell, NJ · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1275512600

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Registry record

Entity type Individual (Type 1)

Name Dr. Carolyn J Horowitz

Credential MD

Sex Female

Practice address 900 Medical Center Dr, Suite 100, Sewell, NJ, 08080

Phone (856) 582-3008

Fax (856) 582-3009

Enumeration date Jan 13, 2006

Last updated in NPPES Oct 24, 2025

Taxonomy & licenses

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License MD030246E (PA) Secondary

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License 25MA04089200 (NJ) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
2580647	Other	NJ	AETNA USHC
80457	Other	NJ	AMERIGROUP
204378	Other	NJ	US FAMILY HEALTH PLAN
2K1601	Other	NJ	HEALTHNET
0061886000	Other	NJ	AMERIHEALTH HMO
422817	Other	NJ	AMERIHEALTH PPO
BNS021	Other	NJ	OXFORD
1153666	Other	NJ	HORIZON/MERCY
223782602	Other	NJ	HORIZON BCBS
1371509	Medicaid	NJ	-
920006709	Other	NJ	RAILROAD MEDICARE
P00613893	Other	NJ	RR MEDICARE

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Carolyn Horowitz?

The National Provider Identifier (NPI) for Carolyn Horowitz is 1275512600, a Type 1 (individual) record in the CMS NPPES registry.

Where does Carolyn Horowitz practice?

The practice location on file with NPPES is in Sewell, NJ. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Professional Radiation Oncology Services Radiation Oncology Physician · Sewell, NJ NPI 1598744922 John Glassburn Medical Oncology Physician · Sewell, NJ NPI 1669404984 New Jersey Oncology Services, PC Radiation Oncology Physician · Sewell, NJ NPI 1790803351 Neveen Malik Pulmonary Disease Physician · Sewell, NJ NPI 1730370891 Kennedy University Hospital, Inc Clinic/Center · Sewell, NJ NPI 1144544297 Kennedy University Hospital, Inc Clinic/Center · Sewell, NJ NPI 1992020358 Kennedy Medical Group Practice, P.C. Surgical Oncology Physician · Sewell, NJ NPI 1043580806

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-10-24.