GREGORY JOSEPH SIEVERDING ACNPC-AG
NPI 1376275420
Nurse Practitioner - Acute Care in Columbia, SC
About Gregory Joseph Sieverding Acnpc-ag NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GREGORY JOSEPH SIEVERDING ACNPC-AG (NPI 1376275420) is an individual acute care provider in Columbia, South Carolina, licensed in South Carolina (26633) and active in the NPI registry since June 2022. He is enrolled in Medicare PECOS and is a graduate of Other (2022).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Gregory Joseph Sieverding Acnpc-ag is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
5Medicare enrollment records show Gregory Sieverding reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Easley, SC 29642
- Reassigned Medicare billing, South Carolina enrollment
- 49 clinicians in this Medicare group
Easley, SC 29642
- Reassigned Medicare billing, South Carolina enrollment
- 10 clinicians in this Medicare group
Easley, SC 29642
- Reassigned Medicare billing, South Carolina enrollment
- 44 clinicians in this Medicare group
Easley, SC 29642
- Reassigned Medicare billing, South Carolina enrollment
- 43 clinicians in this Medicare group
Carmel, IN 46032
- Reassigned Medicare billing, South Carolina enrollment
- 4 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 29204 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
COLUMBIA, SC 29204
COLUMBIA, SC 29204
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 Gregory Sieverding's NPI number?
The NPI number for Gregory Sieverding is 1376275420. It was assigned to this individual provider in the NPPES registry on June 28, 2022.
Where is Gregory Sieverding located?
Gregory Sieverding practices at 2435 Forest Dr, Columbia, SC 29204. The listed phone number is (803) 256-5300.
What is Gregory Sieverding's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.
Is Gregory Sieverding enrolled in Medicare?
Yes. Gregory Sieverding is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Gregory Sieverding's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Sieverding reassigns Medicare benefits to 5 organizations: Onsite Healthcare And Wellness LLC (Easley, SC), Onsite Home Primary Care (Easley, SC), Onsite Medical Solutions Sc Coastal LLC (Easley, SC), Onsite Medical Solutions Sc Upstate LLC (Easley, SC) and Impact Physician Group Pulmonary LLC (Carmel, IN). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Gregory Sieverding's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Gregory Sieverding accept?
Health plans from First Choice Next and UnitedHealthcare list Gregory Sieverding as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Gregory Sieverding was last updated on November 21, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years 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.
# Gregory Joseph Sieverding, ACNPC-AG · NPI 1376275420
Acute Care physician in Columbia, South Carolina. Individual provider, active in the CMS NPPES registry since June 28, 2022.
## Identity
- **NPI:** 1376275420 (Entity type: Individual)
- **Enumerated:** June 28, 2022
- **Primary specialty:** Nurse Practitioner - Acute Care · taxonomy 363LA2100X
- **State license:** 26633 (South Carolina)
- **Sole proprietor:** No
## Practice location
- **Address:** 2435 FOREST DR, Columbia, SC 29204-2026
- **Phone:** (803) 256-5300
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 5 organizations under Medicare reassignment (form CMS-855R): Onsite Healthcare And Wellness LLC (NPI 1437648904, Easley, SC); Onsite Home Primary Care (NPI 1730966110, Easley, SC); Onsite Medical Solutions Sc Coastal LLC (NPI 1326864141, Easley, SC); Onsite Medical Solutions Sc Upstate LLC (NPI 1457177289, Easley, SC); Impact Physician Group Pulmonary LLC (NPI 1043804578, Carmel, IN) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2022
## Record status
- **NPPES last updated:** November 21, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1376275420) · Data from the CMS NPPES public registry.