Dr. Dorsay Leroy Winthers, DDS
Dr. Dorsay Leroy Winthers is a Dentist provider (Dentist) practicing in Mitchell, SD, registered in the NPPES registry with NPI 1356557136 since 2007. The credential DDS stands for Doctor of Dental Surgery. Practices at Mitchell Dental Clinic LLC (listed at the same practice address in NPPES).
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1356557136 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Dorsay Leroy Winthers |
| Credential | DDS |
| Sex | Male |
| Practice address | 1920 NORTH KIMBALL, Mitchell, SD, 57301 |
| Phone | 6059967786 |
| Fax | 6059965895 |
| Enumeration date | 2007-05-16 |
| Last updated in NPPES | 2007-07-08 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 122300000X | Dentist | Primary | M379 | SD |
DDS — Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 7800550 | Medicaid | SD | — |
Copy-ready billing details
Provider: Dorsay Winthers, DDS NPI: 1356557136 Taxonomy: 122300000X (Dentist) Address: 1920 NORTH KIMBALL, Mitchell, SD, 57301
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1629284401 | Mitchell Dental Clinic LLC | Organization | Dentist | Mitchell, SD |
| 1225231152 | Amber Determan | Individual | Dentist | Mitchell, SD |
Verify this record
Cross-check NPI 1356557136 against the authoritative CMS record: view Dr. Dorsay Leroy Winthers 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.