Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mary E Mihalek, M.D.

Obstetrics & Gynecology Physician in New Britain, CT · enumerated 2005.

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

National Provider Identifier

1639178296

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Registry record

Entity type Individual (Type 1)

Name Dr. Mary E Mihalek

Credential M.D.

Sex Female

Practice address 300 Kensington Ave, Grove Hill Medical Center, New Britain, CT, 06051

Phone (860) 224-6215

Fax (860) 826-4957

Enumeration date Jul 18, 2005

Last updated in NPPES Jul 9, 2007

Taxonomy & licenses

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License 036746 (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
010036746CT02	Other	CT	BCBS N BCFP PROV ID
0V5162	Other	CT	HEALTH NET PROV ID
CL00041	Other	CT	OXFORD PROV ID
1255448155	Other	CT	GHMC GRP NPI ID
2171905	Other	CT	AETNA PROV ID
368089	Other	CT	WELLCARE MEDCIARE
036746	Other	CT	CONNECTICARE PROV ID
01036746	Other	CT	CIGNA PROV ID

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 specialty is Mary Mihalek?

Mary Mihalek is registered in NPPES with the primary taxonomy of Obstetrics & Gynecology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-09.