Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Donald Larry Johnson, PH.D.

Clinical Psychologist in Castle Rock, CO · enumerated 2015.

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

National Provider Identifier

1780072009

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Registry record

Entity type Individual (Type 1)

Name Dr. Donald Larry Johnson

Credential PH.D.

Sex Male

Practice address 4001 Home St, Castle Rock, CO, 80108

Phone (303) 688-3174

Enumeration date Jan 9, 2015

Last updated in NPPES Jan 9, 2015

Taxonomy & licenses

103K00000X Behavior Analyst Behavioral Health & Social Service Providers · License 1623 (CO) Secondary

103TA0700X Adult Development & Aging Psychologist Behavioral Health & Social Service Providers · License 1623 (CO) Secondary

103TB0200X Cognitive & Behavioral Psychologist Behavioral Health & Social Service Providers · License 1623 (CO) Secondary

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 1623 (CO) Primary

103TC2200X Clinical Child & Adolescent Psychologist Behavioral Health & Social Service Providers · License 1623 (CO) Secondary

103TF0000X Family Psychologist Behavioral Health & Social Service Providers · License 1623 (CO) Secondary

103TM1800X Intellectual & Developmental Disabilities Psychologist Behavioral Health & Social Service Providers · License 0393393 (CO) Secondary

103TS0200X School Psychologist Behavioral Health & Social Service Providers · License 0393393 (CO) 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.

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Frequently asked questions

Where does Donald Johnson practice?

The practice location on file with NPPES is in Castle Rock, CO. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Donald Johnson?

The National Provider Identifier (NPI) for Donald Johnson is 1780072009, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-01-09.