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

Dr. Mary Elizabeth Poston, MD

Individual provider Internal Medicine Physician · NPI 1497722367

Dr. Mary Elizabeth Poston, MD practises Internal Medicine in Columbia, South Carolina. Graduated from Medical University of South Carolina College of Medicine in 1999, 27 years ago. Practices with Prisma Health Medical Group-Midlands, a 1,018-clinician group, accepts Medicare assignment and offers telehealth. Licensed in South Carolina.

Years since qualifying
27
Trained at
Medical University of South Carolina College of Medicine
Licensed in
SC
In the registry since
2006
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

1801 Sunset Dr
Columbia, SC 29203-6803
Phone: (803) 540-5444
Fax: (803) 933-3042
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 21863 (SC)

Record details

NPI number1497722367
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 1, 2006
Last updated in NPPESJuly 13, 2020
Certification dateJuly 13, 2020

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolMEDICAL UNIVERSITY OF SOUTH CAROLINA COLLEGE OF MEDICINE
Graduated 1999 (27 years in practice)
Group practice Prisma Health Medical Group-Midlands — 1018 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients198
Services billed 812 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Prisma Health Baptist Hospital · Columbia, SC
  • Prisma Health Richland Hospital Hospital · Columbia, SC

Colleagues at Prisma Health Medical Group-Midlands

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1018 clinicians in the practice; 12 are shown here.

Other providers in Columbia