Gregory Lee Koch, PH.D
Gregory Lee Koch is a Psychologist provider (Psychologist) practicing in Orange, CA, registered in the NPPES registry with NPI 1497705347 since 2006. The credential PHD stands for Doctor of Philosophy. Practices at County of Orange (listed at the same practice address in NPPES).
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1497705347 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Gregory Lee Koch |
| Credential | PH.D |
| Sex | Male |
| Practice address | Orange, CA, 92868 |
| Phone | 7144806760 |
| Enumeration date | 2006-05-11 |
| Last updated in NPPES | 2026-05-31 |
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 | PSY17893 | CA |
PHD — Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| PSY17893 | Other | CA | MEDICAL LICENSE |
Copy-ready billing details
Provider: Gregory Koch, PH.D NPI: 1497705347 Taxonomy: 103T00000X (Psychologist) Address: Orange, CA, 92868
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1346204856 | Janice Coniglio | Individual | Clinical Social Worker | Orange, CA |
| 1013005842 | Azin Asli | Individual | Clinical Psychologist | Orange, CA |
| 1457498941 | County of Orange | Organization | Adolescent and Children Mental Health Clinic/Center | Orange, CA |
| 1013189448 | Michelle Flores | Individual | Marriage & Family Therapist | Orange, CA |
| 1093954307 | Gabriela Ruelas | Individual | Rehabilitation Practitioner | Orange, CA |
| 1255657813 | Caitlin Suggs | Individual | Marriage & Family Therapist | Orange, CA |
| 1487954731 | Skarlet Segundo | Individual | Marriage & Family Therapist | Orange, CA |
| 1275964884 | Shaun Lee | Individual | Marriage & Family Therapist | Orange, CA |
Verify this record
Cross-check NPI 1497705347 against the authoritative CMS record: view Gregory Lee Koch 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.
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2026-05-31.