Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Karen E Brown, M.D.

Internal Medicine Physician in Hamden, CT · enumerated 2006.

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

National Provider Identifier

1285609412

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Registry record

Entity type Individual (Type 1)

Name Karen E Brown

Credential M.D.

Sex Female

Practice address 2440 Whitney Ave, Hamden, CT, 06518

Phone (203) 288-9650

Fax (203) 288-9670

Enumeration date Feb 21, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 033624 (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
0Q3226	Other	CT	HEALTH NET
1987932	Other	CT	UNITED HEALTHCARE
7166741009	Other	CT	CIGNA
P839588	Other	CT	OXFORD
010033624CT02	Other	CT	ANTHEM BC BS 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

How do I verify Karen Brown's NPI record?

Cross-check NPI 1285609412 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1285609412 active?

Yes, as of the latest NPPES snapshot, NPI 1285609412 is active (record last updated 2007-07-08).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.