Individual provider · Type 1 NPI

William Harrison Mellick Iii, PhD

Clinical Psychologist · Charleston, SC

NPI number 1154040293 Active

Practice location

171 Ashley Ave
Charleston, SC 29425-8908

Call (843) 792-1414 Map

Mailing address

PO Box 751461
Charlotte, NC 28275-1461

Specialties and licenses

TaxonomyCodeLicense
Addiction (Substance Use Disorder) Psychologist 103TA0400X1542 (SC)
Family Psychologist 103TF0000X1542 (SC)
Cognitive & Behavioral Psychologist 103TB0200X1542 (SC)
Clinical Child & Adolescent Psychologist 103TC2200X1542 (SC)
Clinical Psychologist Primary 103TC0700X1542 (SC)

Clinical Psychologist: A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of discip…

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About NPI 1154040293

William Harrison Mellick Iii, PhD's National Provider Identifier is 1154040293, issued on Aug 23, 2022. The primary taxonomy on file is Clinical Psychologist (103TC0700X), and the practice location is in Charleston, SC. The record was last updated on Sep 9, 2025.