Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Katherine M Bayliss, MD

General Practice Physician in Colgate, WI · enumerated 2006.

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

National Provider Identifier

1144288861

Verified

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Registry record

Entity type Individual (Type 1)

Name Katherine M Bayliss

Credential MD

Sex Female

Practice address 5449 Monches Rd, Colgate, WI, 53017

Phone (414) 828-0331

Enumeration date May 2, 2006

Last updated in NPPES Sep 27, 2022

Taxonomy & licenses

207ZP0102X Anatomic Pathology & Clinical Pathology Physician Allopathic & Osteopathic Physicians · License 28481 (WI) Secondary

208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License 28481 (WI) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 Bayliss practice?

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

What is the NPI number for Katherine Bayliss?

The National Provider Identifier (NPI) for Katherine Bayliss is 1144288861, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-09-27.