Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Douglas Christian Johnson, PH.D.

Clinical Neuropsychologist in La Jolla, CA · enumerated 2007.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1770788697

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Douglas Christian Johnson

Credential PH.D.

Sex Male

Practice address La Jolla, CA, 92037

Phone (858) 999-4287

Enumeration date Jun 20, 2007

Last updated in NPPES Feb 6, 2013

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

103G00000X Clinical Neuropsychologist Behavioral Health & Social Service Providers · License PSY21975 (CA) Primary

103TF0200X Forensic Psychologist Behavioral Health & Social Service Providers · License PSY21975 (CA) Secondary

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License PSY21975 (CA) Secondary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

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 → Validate an NPI →

Frequently asked questions

Is NPI 1770788697 active?

Yes, as of the latest NPPES snapshot, NPI 1770788697 is active (record last updated 2013-02-06).

How do I verify Douglas Johnson's NPI record?

Cross-check NPI 1770788697 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-02-06.