NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mrs. Kathleen S. Mauks, M.D.

Internal Medicine Physician in Danbury, CT · enumerated 2005.

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

National Provider Identifier

1629064035

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Registry record

Entity type Individual (Type 1)
Name Mrs. Kathleen S. Mauks
Credential M.D.
Sex Female
Practice address Danbury, CT, 06810
Phone (203) 743-0100
Fax (203) 794-1851
Enumeration date Sep 21, 2005
Last updated in NPPES Oct 1, 2012

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 014605 (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
010014605CT01 Other CT BC/BS
001146059 Medicaid CT -
040045 Other CT HEALTHNET
0078385 Other CT UNITED HEALTH CARE
P476668 Other CT OXFORD
4283743 Other CT AETNA
714605 Other CT CONNECTICARE

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 Kathleen Mauks?
Kathleen Mauks 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 2012-10-01.