Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Dennis J Butler, PHD

Family Psychologist in Milwaukee, WI · enumerated 2006.

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

National Provider Identifier

1801841531

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Ms. Dennis J Butler

Credential PHD

Sex Male

Practice address 1121 E North Ave, Columbia-St. Mary'S Family Practice, Milwaukee, WI, 53212

Phone (414) 267-6533

Fax (414) 267-3892

Enumeration date May 23, 2006

Last updated in NPPES Feb 11, 2013

Taxonomy & licenses

103TF0000X Family Psychologist Behavioral Health & Social Service Providers Primary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

Other identifiers

Identifier	Type	State	Issuer
1801841531	Medicaid	WI	-
002000139X	Other	-	HUMANA

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 Dennis Butler practice?

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

What is the NPI number for Dennis Butler?

The National Provider Identifier (NPI) for Dennis Butler is 1801841531, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-02-11.