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

Mrs. Katherine Ann Mcmillan

Contractor in Hyde Park, NY · enumerated 2011 · practices at Hyde Park Central School District.

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

National Provider Identifier

1497039903

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Mrs. Katherine Ann Mcmillan

Sex Female

Practice address Hyde Park, NY, 12538

Phone (845) 229-4007

Enumeration date Oct 3, 2011

Last updated in NPPES Oct 3, 2011

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

Taxonomy & licenses

171W00000X Contractor Other Service Providers · License 63009014 (NY) Primary

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

Where does Katherine Mcmillan practice?

The practice location on file with NPPES is in Hyde Park, NY. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Katherine Mcmillan?

The National Provider Identifier (NPI) for Katherine Mcmillan is 1497039903, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Hyde Park Central School District Local Education Agency (LEA) · Hyde Park, NY NPI 1366589723 Karin Sonntag Speech-Language Pathologist · Hyde Park, NY NPI 1316256423 Mckenna Farrere Occupational Therapist · Hyde Park, NY NPI 1922872456

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-10-03.