NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Brian Tillis, MD

Obstetrics & Gynecology Physician in Pleasant Prairie, WI · enumerated 2016.

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

National Provider Identifier

1396107405

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Brian Tillis
Credential MD
Sex Male
Practice address 9555 76th St Ste 4105, Pleasant Prairie, WI, 53158
Phone (262) 577-8080
Fax (262) 577-8081
Enumeration date Mar 28, 2016
Last updated in NPPES Jul 16, 2020

Taxonomy & licenses

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License 69543-20 (WI) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
69543-20 Other WI WI LICENSE

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 Brian Tillis practice?
The practice location on file with NPPES is in Pleasant Prairie, WI. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Brian Tillis?
The National Provider Identifier (NPI) for Brian Tillis is 1396107405, 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 2020-07-16.