Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Gregory Joseph Sieverding, ACNPC-AG

Individual provider Acute Care Nurse Practitioner · NPI 1376275420

Gregory Joseph Sieverding, ACNPC-AG is a Nurse Practitioner in Columbia, South Carolina. Qualified in 2022, 4 years ago. Practices with Onsite Healthcare and Wellness LLC, a 28-clinician group and accepts Medicare assignment. Licensed in Iowa and South Carolina.

Years since qualifying
4
Licensed in
IA, SC
In the registry since
2022
Specialties on file
2
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Practice location Address checks out

2435 Forest Dr
Columbia, SC 29204-2026
Phone: (803) 256-5300
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Acute Care Nurse Practitioner (primary) Taxonomy 363LA2100X · Licence 26633 (SC)
Acute Care Nurse Practitioner Taxonomy 363LA2100X · Licence H169714 (IA)

Record details

NPI number1376275420
Entity typeIndividual (Type 1)
GenderMale
Credentials ACNPC-AG
Sole proprietorNo
NPI enumeratedJune 28, 2022
Last updated in NPPESNovember 21, 2023
Certification dateNovember 21, 2023

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2022 (4 years in practice)
Group practice Onsite Healthcare And Wellness Llc — 28 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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