Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Ross Lewis Oberschlake, D.D.S.
Dentist in Watertown, WI · enumerated 2011.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1801182225
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Registry record
Entity type Individual (Type 1)
Name Dr. Ross Lewis Oberschlake
Credential D.D.S.
Sex Male
Practice address 1518 Doctors Ct, Watertown, WI, 53094
Phone (920) 261-8228
Enumeration date Jun 23, 2011
Last updated in NPPES Aug 12, 2014
Taxonomy & licenses
DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees.
About the DDS 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
Where does Ross Oberschlake practice?
The practice location on file with NPPES is in Watertown, WI. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Ross Oberschlake?
The National Provider Identifier (NPI) for Ross Oberschlake is 1801182225, 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 2014-08-12.