Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Diane Pauline Kowalski, MD

Anatomic Pathology Physician in New Haven, CT · enumerated 2005.

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

National Provider Identifier

1881675197

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Registry record

Entity type Individual (Type 1)

Name Diane Pauline Kowalski

Credential MD

Sex Female

Practice address 20 York St, New Haven, CT, 06504

Phone (203) 785-6933

Enumeration date Nov 14, 2005

Last updated in NPPES Aug 4, 2008

Taxonomy & licenses

207ZC0500X Cytopathology Physician Allopathic & Osteopathic Physicians · License 038380 (CT) Secondary

207ZP0101X Anatomic Pathology Physician Allopathic & Osteopathic Physicians · License 038380 (CT) 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
001383801	Medicaid	CT	-

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 Diane Kowalski?

Diane Kowalski is registered in NPPES with the primary taxonomy of Anatomic Pathology 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 2008-08-04.