Dr. John A Olsen, DDS, MAGD
Dr. John A Olsen is a General Practice Dentistry provider (Dentist) practicing in Franklin, WI, registered in the NPPES registry with NPI 1497870232 since 2007. The credential DDS stands for Doctor of Dental Surgery. Practices at John A Olsen, DDS, Sc (listed at the same practice address in NPPES).
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1497870232 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. John A Olsen |
| Credential | DDS, MAGD |
| Sex | Male |
| Practice address | 9725 W SAINT MARTINS RD, Franklin, WI, 53132 |
| Phone | 4144257050 |
| Fax | 4144258970 |
| Enumeration date | 2007-03-20 |
| Last updated in NPPES | 2007-07-08 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 1223G0001X | General Practice Dentistry | Primary | 4257 | WI |
DDS — Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential
Copy-ready billing details
Provider: John Olsen, DDS, MAGD NPI: 1497870232 Taxonomy: 1223G0001X (General Practice Dentistry) Address: 9725 W SAINT MARTINS RD, Franklin, WI, 53132
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1528188356 | John A Olsen, DDS, Sc | Organization | General Practice Dentistry | Franklin, WI |
Verify this record
Cross-check NPI 1497870232 against the authoritative CMS record: view Dr. John A Olsen on the official NPPES registry .
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 or validate an NPI number.
Frequently asked questions
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.