Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Andrew Thomas Wiswall, D.D.S
Endodontics in Sioux Falls, SD · enumerated 2010.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1255656807
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Registry record
Entity type Individual (Type 1)
Name Dr. Andrew Thomas Wiswall
Credential D.D.S
Sex Male
Practice address 2333 W 57th St, Suite 103, Sioux Falls, SD, 57108
Phone (612) 208-7458
Enumeration date Apr 6, 2010
Last updated in NPPES Aug 24, 2011
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 Andrew Wiswall practice?
The practice location on file with NPPES is in Sioux Falls, SD. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Andrew Wiswall?
The National Provider Identifier (NPI) for Andrew Wiswall is 1255656807, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-08-24.