Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Douglas Stephen Southern, PHD

Psychologist in Norman, OK · enumerated 2007.

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

National Provider Identifier

1043407190

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Douglas Stephen Southern

Credential PHD

Sex Male

Practice address 15951 Little Axe Dr, Norman, OK, 73026

Phone (405) 447-0300

Enumeration date Oct 2, 2007

Last updated in NPPES Mar 25, 2026

Taxonomy & licenses

101YP2500X Professional Counselor Behavioral Health & Social Service Providers · License 0128981 (NM) Secondary

103T00000X Psychologist Behavioral Health & Social Service Providers · License 1445 (OK) Primary

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

How do I verify Douglas Southern's NPI record?

Cross-check NPI 1043407190 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1043407190 active?

Yes, as of the latest NPPES snapshot, NPI 1043407190 is active (record last updated 2026-03-25).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-03-25.