Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dana Michelle Defta, MD

Q: What is the NPI number for Dana Defta?

The National Provider Identifier (NPI) for Dana Defta is 1902365729, a Type 1 (individual) record in the CMS NPPES registry.

Neurological Surgery Physician in Neenah, WI · enumerated 2019 · practices at The Neuroscience Group of Northeast Wisconsin, Sc.

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

National Provider Identifier

1902365729

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Registry record

Entity type Individual (Type 1)

Name Dana Michelle Defta

Credential MD

Sex Female

Practice address 1305 W American Dr, Neenah, WI, 54956

Phone (920) 725-9373

Enumeration date Mar 19, 2019

Last updated in NPPES Jun 29, 2026

Taxonomy & licenses

207T00000X Neurological Surgery Physician Allopathic & Osteopathic Physicians · License 87730-20 (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 Dana Defta practice?

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

What is the NPI number for Dana Defta?

The National Provider Identifier (NPI) for Dana Defta is 1902365729, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-06-29.