John Ewing Harris, PHD
John Ewing Harris is a Psychologist provider (Psychologist) practicing in Springfield, IL, registered in the NPPES registry with NPI 1558359828 since 2005. The credential PHD stands for Doctor of Philosophy.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1558359828 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | John Ewing Harris |
| Credential | PHD |
| Sex | Male |
| Practice address | 2921 GREENBRIAR DR STE B1, Springfield, IL, 62704 |
| Phone | 2175463118 |
| Fax | 2175463184 |
| Enumeration date | 2005-10-11 |
| Last updated in NPPES | 2021-02-14 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 103T00000X | Psychologist | Primary | 071005273 | IL |
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 Harris, PHD NPI: 1558359828 Taxonomy: 103T00000X (Psychologist) Address: 2921 GREENBRIAR DR STE B1, Springfield, IL, 62704
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1861650525 | Sheryl Reminger | Individual | Clinical Psychologist | Springfield, IL |
| 1952652331 | Alicia Shapinsky | Individual | Clinical Psychologist | Springfield, IL |
Verify this record
Cross-check NPI 1558359828 against the authoritative CMS record: view John Ewing Harris 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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Where does John Harris practice?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2021-02-14.