Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Michael Scott Unnerstall, DC
Chiropractor in Ballwin, MO · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1043210222
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Dr. Michael Scott Unnerstall
Credential DC
Sex Male
Practice address 15945 Clayton Rd Ste 230c, Ballwin, MO, 63011
Phone (636) 256-5200
Enumeration date Jul 28, 2005
Last updated in NPPES Oct 5, 2023
Taxonomy & licenses
DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders.
About the DC 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 Michael Unnerstall?
The National Provider Identifier (NPI) for Michael Unnerstall is 1043210222, a Type 1 (individual) record in the CMS NPPES registry.
Where does Michael Unnerstall practice?
The practice location on file with NPPES is in Ballwin, MO. 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 2023-10-05.