Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Caitlin Victoria Mary Fleming, MD/MBA

Pediatrics Physician in Fort Atkinson, WI · enumerated 2021 · practices at Internal Medicine & Pediatrics, S.C..

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

National Provider Identifier

1518540657

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Registry record

Entity type Individual (Type 1)

Name Dr. Caitlin Victoria Mary Fleming

Credential MD/MBA

Sex Female

Practice address 500 Mcmillen St, Fort Atkinson, WI, 53538

Phone (713) 500-5666

Fax (713) 500-5800

Enumeration date May 5, 2021

Last updated in NPPES Jul 8, 2024

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 8401720 (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 Caitlin Fleming practice?

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

What is the NPI number for Caitlin Fleming?

The National Provider Identifier (NPI) for Caitlin Fleming is 1518540657, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-07-08.