Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Catherine Holmes, M.D.

Internal Medicine Physician in New Britain, CT · enumerated 2005.

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

National Provider Identifier

1497751168

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Registry record

Entity type Individual (Type 1)

Name Dr. Catherine Holmes

Credential M.D.

Sex Female

Practice address 300 Kensington Ave, New Britain, CT, 06051

Phone (860) 832-8150

Fax (860) 224-6953

Enumeration date Jun 27, 2005

Last updated in NPPES Jul 9, 2007

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 040511 (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
001405118	Medicaid	CT	-
010040511CT01	Other	CT	BCBS N BCFP PROV ID
1255448155	Other	CT	GHMC GRP NPI ID
P2720404	Other	CT	OXFORD PROV ID
004215324	Medicaid	CT	-
7542369	Other	CT	AETNA REF ID
C01373	Other	CT	GHMC GRP MEDICARE ID
040511	Other	CT	CONNECTICARE PROV ID
2V2142	Other	CT	HEALTH NET PROV ID
1308844	Other	CT	CIGNA PROV ID
368438	Other	CT	WELLCARE 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 Catherine Holmes?

The National Provider Identifier (NPI) for Catherine Holmes is 1497751168, a Type 1 (individual) record in the CMS NPPES registry.

Where does Catherine Holmes practice?

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

Other providers at this practice address

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