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WILLIAM HARRISON MCALLISTER MD
NPI 1194305292
Pediatrics in Charleston, SC

Active since April 12, 2021PECOS Enrolled
169 ASHLEY AVENUE, ROOM 202 MAIN HOSPITAL MSC333, CHARLESTON, SC 29425(843) 792-9570 Get Directions Write a Review

NPPES record last updated: November 3, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Nov 3, 2025, Apr 10, 2024, Jun 22, 2021 and 1 more (4 updates tracked since 2021).

About William Harrison Mcallister Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

WILLIAM HARRISON MCALLISTER MD (NPI 1194305292) is an individual pediatrics provider in Charleston, South Carolina, licensed in South Carolina (91777) and active in the NPI registry since April 2021. He is enrolled in Medicare PECOS, maintains a secondary practice location in Charleston, and is a graduate of Other (2021).

NPPES Registry Identity

NPI1194305292
Entity TypeIndividualMale
Primary Taxonomy208000000X
Provider Legal NameWILLIAM HARRISON MCALLISTERCredential: MD
Location Address169 ASHLEY AVENUE, ROOM 202 MAIN HOSPITAL MSC333Charleston, SC 29425
Mailing Address169 Ashley AveCharleston, SC 29425-8905
Phone(843) 792-9570
Sole ProprietorNo
Medical School CMSOtherGraduated 2021
Enumeration DateApril 12, 2021
Last NPPES UpdateNovember 3, 20254 updates tracked since enumeration
NPPES CertifiedNovember 3, 2025
✔ NPI 1194305292 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
Licenses✔ Licensed in SC · 91777✔ Licensed in OH · 57.251574
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
Also ListedHospitalistTaxonomy 208M00000X · License 91777 (SC)
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
169 ASHLEY AVENUE, Charleston, SC 29425
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Secondary Practice Location 1

Location 12095 Henry Tecklenburg DrCharleston, SC 29414-5733 · Phone (843) 402-1634 · Fax (843) 402-1550

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

William Harrison Mcallister Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID6901207877
PECOS Enrollment IDI20251211002824
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 29425 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$83.18 typical visit price
range $53.57 – $163.84
Typical copayment $20.79 (range $13.39 – $40.96)
Most-billed visit code 99203
Established Patient
$95.12 typical visit price
range $16.96 – $133.52
Typical copayment $23.78 (range $4.24 – $33.38)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. JAMES HOWARD BENSON III MD
Internal Medicine
169 ASHLEY AVENUE, ROOM 202 MAIN HOSPITAL MSC333
CHARLESTON, SC 29425
Charleston County (843) 792-4074
COURTNEY AUGUSTA LUKITSCH MD
Psychiatry & Neurology (Psychiatry)
169 ASHLEY AVENUE, ROOM 202 MAIN HOSPITAL, MSC333
CHARLESTON, SC 29425
Charleston County (843) 792-9162
DR. CHARLES SPENCER TEIXEIRA DO
Internal Medicine (Infectious Disease)
169 ASHLEY AVENUE, ROOM 202 MAIN HOSPITAL MSC 333
CHARLESTON, SC 29425
Charleston County (843) 792-2575
CHELSEA WRIGHT-VOID MD
Pathology (Anatomic Pathology & Clinical Pathology)
169 ASHLEY AVENUE, ROOM 202 MAIN HOSPITAL MSC333
CHARLESTON, SC 29425
Charleston County (843) 792-1086
HELEN JENSIE BURTON MD
Internal Medicine
169 ASHLEY AVENUE, ROOM 202 MSC333
CHARLESTON, SC 29425
Charleston County (843) 792-2911
DR. MITCHELL BENTON MD
Internal Medicine
169 ASHLEY AVENUE, ROOM 202 MAIN HOSPITAL MSC333
CHARLESTON, SC 29425
Charleston County (843) 792-5386
DR. ALLISON CRECELIUS DO
Emergency Medicine
169 ASHLEY AVENUE, ROOM 202 MAIN HOSPITAL MSC333
CHARLESTON, SC 29425
Charleston County (314) 808-5444
RONIT KULKARNI
Surgery
169 ASHLEY AVENUE, ROOM 202 MAIN HOSPITAL MSC333
CHARLESTON, SC 29425
Charleston County (843) 792-2081

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Mcallister's NPI number?

The NPI number for William Mcallister is 1194305292. It was assigned to this individual provider in the NPPES registry on April 12, 2021.

Where is William Mcallister located?

William Mcallister practices at 169 Ashley Avenue Room 202 Main Hospital Msc333, Charleston, SC 29425. The listed phone number is (843) 792-9570.

What is William Mcallister's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is William Mcallister enrolled in Medicare?

Yes. William Mcallister is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for William Mcallister was last updated on November 3, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.