Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Theresa Welles, PH.D.

Psychologist in Duluth, GA · enumerated 2014.

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

National Provider Identifier

1851719710

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Registry record

Entity type Individual (Type 1)

Name Dr. Theresa Welles

Credential PH.D.

Sex Female

Practice address 3650 Steve Reynolds Blvd., Duluth, GA, 30096

Phone (770) 931-6200

Fax (770) 931-6042

Enumeration date Mar 28, 2014

Last updated in NPPES Mar 28, 2014

Taxonomy & licenses

103T00000X Psychologist Behavioral Health & Social Service Providers · License PSY003526 (GA) 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.

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Frequently asked questions

What specialty is Theresa Welles?

Theresa Welles is registered in NPPES with the primary taxonomy of Psychologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-03-28.