Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Katie C Lewallen, PH.D.

Psychologist in Huntsville, AL · enumerated 2013.

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

National Provider Identifier

1578909982

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Registry record

Entity type Individual (Type 1)

Name Dr. Katie C Lewallen

Credential PH.D.

Sex Female

Practice address 250 Chateau Dr Sw Ste 145, Huntsville, AL, 35801

Phone (256) 801-8937

Fax (256) 517-8355

Enumeration date May 14, 2013

Last updated in NPPES Mar 17, 2018

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 1662 (AL) Secondary

103T00000X Psychologist Behavioral Health & Social Service Providers · License 1662 (AL) 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

How do I verify Katie Lewallen's NPI record?

Cross-check NPI 1578909982 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1578909982 active?

Yes, as of the latest NPPES snapshot, NPI 1578909982 is active (record last updated 2018-03-17).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-03-17.