Dr. Steven P. Klein, PH.D.
Dr. Steven P. Klein is a Psychologist provider (Psychologist) practicing in Appleton, WI, registered in the NPPES registry with NPI 1700897766 since 2006. The credential PHD stands for Doctor of Philosophy. Practices at Steven Klein, Ph.D., S.C. (listed at the same practice address in NPPES).
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1700897766 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Steven P. Klein |
| Credential | PH.D. |
| Sex | Male |
| Practice address | Appleton, WI, 54913 |
| Phone | 9207491005 |
| Fax | 9207494914 |
| Enumeration date | 2006-08-11 |
| Last updated in NPPES | 2007-07-08 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 103T00000X | Psychologist | Primary | 1262 | WI |
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: Steven Klein, PH.D. NPI: 1700897766 Taxonomy: 103T00000X (Psychologist) Address: Appleton, WI, 54913
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1508107491 | Steven Klein, Ph.D., S.C. | Organization | Clinical Psychologist | Appleton, WI |
| 1588067201 | Suzanne Arroyo | Individual | Clinical Psychologist | Appleton, WI |
| 1871950774 | Jacob Hermes | Individual | Behavior Analyst | Appleton, WI |
Verify this record
Cross-check NPI 1700897766 against the authoritative CMS record: view Dr. Steven P. Klein 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.