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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Irene Kotok, M.D.

Internal Medicine Physician in East Windsor, NJ · enumerated 2018.

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

National Provider Identifier

1386136935

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Registry record

Entity type Individual (Type 1)
Name Dr. Irene Kotok
Credential M.D.
Sex Female
Practice address 319 Highway 130 North, Suite 29b, East Windsor, NJ, 08520
Phone (609) 426-1555
Fax (609) 443-1394
Enumeration date May 30, 2018
Last updated in NPPES Sep 27, 2022

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 25MA11572900 (NJ) Secondary
390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 25MA11572900 (NJ) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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.

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Frequently asked questions

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Irene Kotok?
Irene Kotok is registered in NPPES with the primary taxonomy of Internal Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-09-27.