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

William T. Halligan, MD

Individual provider Cardiovascular Disease Physician · NPI 1255698163

William T. Halligan, MD is a Cardiovascular Disease (Cardiology) in Greenville, South Carolina. Graduated from Medical University of South Carolina College of Medicine in 2012, 14 years ago. Practices with Prisma Health University Medical Group, a 2,446-clinician group and accepts Medicare assignment. Licensed in South Carolina.

Years since qualifying
14
Trained at
Medical University of South Carolina College of Medicine
Licensed in
SC
In the registry since
2012
Specialties on file
2
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

1005 Grove Rd
Greenville, SC 29605-4630
Phone: (864) 455-6900
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence 39407 (SC)
Internal Medicine Physician Taxonomy 207R00000X · Licence LL39407 (SC)

Record details

NPI number1255698163
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 16, 2012
Last updated in NPPESMay 7, 2021
Certification dateMay 7, 2021

Medicare enrollment

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

Medicare specialtyCARDIOVASCULAR DISEASE (CARDIOLOGY)
Medical schoolMEDICAL UNIVERSITY OF SOUTH CAROLINA COLLEGE OF MEDICINE
Graduated 2012 (14 years in practice)
Group practice Prisma Health University Medical Group — 2446 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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