Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ryan Demares, OD
Optometrist in Brookfield, WI · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1962559138
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Registry record
Entity type Individual (Type 1)
Name Ryan Demares
Credential OD
Sex Male
Practice address 16025 W Bluemound Rd, Brookfield, WI, 53005
Phone (262) 785-0490
Fax (262) 785-1690
Enumeration date Jan 3, 2007
Last updated in NPPES Apr 11, 2008
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD 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.
Frequently asked questions
What is the NPI number for Ryan Demares?
The National Provider Identifier (NPI) for Ryan Demares is 1962559138, a Type 1 (individual) record in the CMS NPPES registry.
Where does Ryan Demares practice?
The practice location on file with NPPES is in Brookfield, WI. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-04-11.