Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Douglas G Mckown, PSY.D.
Clinical Psychologist in Upland, CA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1659478113
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Registry record
Entity type Individual (Type 1)
Name Dr. Douglas G Mckown
Credential PSY.D.
Sex Male
Practice address 1126 W. Foothill Blvd. Suite 110, Upland, CA, 91786
Phone (909) 985-0513
Fax (909) 985-7193
Enumeration date Sep 19, 2006
Last updated in NPPES Feb 3, 2020
Taxonomy & licenses
103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License PSY1988 (CA) Secondary
103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License PSY19880 (CA) Primary
PSYD · Doctor of Psychology: A clinical doctorate in psychology focused on professional practice.
About the PSYD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 366620 | Other | CA | MANAGED HEALTH NETWORK # |
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.
Frequently asked questions
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Douglas Mckown?
Douglas Mckown is registered in NPPES with the primary taxonomy of Clinical Psychologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-02-03.