Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mr. William Henry Korthals III, MSW, LCSW

Individual provider Clinical Social Worker · NPI 1972721124

Mr. William Henry Korthals III, MSW, LCSW is a Clinical Social Worker in Myrtle Beach, South Carolina. Qualified in 2000, 26 years ago. Works from 2 locations. Licensed in Delaware, New York and South Carolina.

Years since qualifying
26
Licensed in
DE, NY, SC
In the registry since
2007
Specialties on file
3
What do these letters mean?
MSW — Master of Social Work
The graduate degree in social work.
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.

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Practice location Address checks out

1800 Airpark Dr
Myrtle Beach, SC 29577-1412
Phone: (843) 301-3202
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 250 Southern Breezes Cir, Murrells Inlet, SC 29576-9390 — (716) 517-1394

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 13050 (SC)
Clinical Social Worker Taxonomy 1041C0700X · Licence Q1-0001104 (DE)
Clinical Social Worker Taxonomy 1041C0700X · Licence 061583 (NY)

Record details

NPI number1972721124
Entity typeIndividual (Type 1)
GenderMale
Credentials MSW , LCSW
Sole proprietorNo
NPI enumeratedApril 23, 2007
Last updated in NPPESMarch 21, 2025
Certification dateMarch 21, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 2000 (26 years in practice)
Accepts Medicare assignment Not indicated
Practice locations3 on file with Medicare

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