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

William Harrison McAllister, MD

Individual provider Pediatrics Physician · NPI 1194305292

William Harrison McAllister, MD is a Pediatric Medicine in Charleston, South Carolina. Qualified in 2021, 5 years ago. Works from 2 locations. Licensed in Ohio and South Carolina.

Years since qualifying
5
Licensed in
OH, SC
In the registry since
2021
Specialties on file
4
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

169 Ashley Ave Rm 202 Main Hospital MSC333
Charleston, SC 29425
Phone: (843) 792-9570
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 2095 Henry Tecklenburg Dr, Charleston, SC 29414-5733 — (843) 402-1634

Specialties & licences

Pediatrics Physician (primary) Taxonomy 208000000X · Licence 91777 (SC)
Pediatrics Physician Taxonomy 208000000X · Licence 57.251574 (OH)
Hospitalist Physician Taxonomy 208M00000X · Licence 91777 (SC)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1194305292
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 12, 2021
Last updated in NPPESNovember 3, 2025
Certification dateNovember 3, 2025

Medicare enrollment

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

Medicare specialtyPEDIATRIC MEDICINE
Also practisesHOSPITALIST
Medical schoolOTHER
Graduated 2021 (5 years in practice)
Accepts Medicare assignment Not indicated

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