Dr. John Larson, PH.D.
Dr. John Larson is a School Psychologist provider (Psychologist) practicing in Spearfish, SD, registered in the NPPES registry with NPI 1982152609 since 2016. The credential PHD stands for Doctor of Philosophy. Practices at Spearfish School District (listed at the same practice address in NPPES).
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1982152609 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. John Larson |
| Credential | PH.D. |
| Sex | Male |
| Practice address | Spearfish, SD, 57783 |
| Phone | 6057171219 |
| Enumeration date | 2016-09-12 |
| Last updated in NPPES | 2016-09-12 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 103TS0200X | School Psychologist | Primary | 73165-2 | SD |
PHD — Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential
Copy-ready billing details
Provider: John Larson, PH.D. NPI: 1982152609 Taxonomy: 103TS0200X (School Psychologist) Address: Spearfish, SD, 57783
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1326243817 | Spearfish School District | Organization | Local Education Agency (LEA) | Spearfish, SD |
| 1720439011 | Julie Peldo | Individual | Speech-Language Pathologist | Spearfish, SD |
| 1073347563 | Shelby Hartze | Individual | School Psychologist | Spearfish, SD |
Verify this record
Cross-check NPI 1982152609 against the authoritative CMS record: view Dr. John Larson 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 2026-07-10. Provider record last updated 2016-09-12.