Dr. Douglas Alvin Peterson, PHD
Dr. Douglas Alvin Peterson is a Clinical Psychologist provider (Psychologist) practicing in Oxnard, CA, registered in the NPPES registry with NPI 1598787764 since 2006. The credential PHD stands for Doctor of Philosophy.
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1598787764 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Douglas Alvin Peterson |
| Credential | PHD |
| Sex | Male |
| Practice address | Oxnard, CA, 93036 |
| Phone | 8053888330 |
| Fax | 8053888030 |
| Enumeration date | 2006-07-24 |
| Last updated in NPPES | 2014-09-05 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 103TC0700X | Clinical Psychologist | Primary | PSY17831 | CA |
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: Douglas Peterson, PHD NPI: 1598787764 Taxonomy: 103TC0700X (Clinical Psychologist) Address: Oxnard, CA, 93036
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1245263664 | Vinod K. Valiveti M.D. Inc., | Organization | Geriatric Medicine (Internal Medicine) Physician | Oxnard, CA |
| 1629001094 | Donna Hethcock | Individual | Ambulatory Care Registered Nurse | Oxnard, CA |
| 1508870700 | Yogender Garg | Individual | Ophthalmology Physician | Oxnard, CA |
| 1316961998 | Yogender P. Garg MD, Inc. | Organization | Ophthalmology Physician | Oxnard, CA |
| 1225149560 | Indarjit Singh | Individual | Family Medicine Physician | Oxnard, CA |
| 1851402184 | Jerry Bruns | Individual | Psychiatry Physician | Oxnard, CA |
| 1114000569 | Alejandro Garcia | Individual | Specialist | Oxnard, CA |
| 1588740641 | Ojai Heart Institute Medical Corporation | Organization | Specialist | Oxnard, CA |
Verify this record
Cross-check NPI 1598787764 against the authoritative CMS record: view Dr. Douglas Alvin Peterson 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 2014-09-05.