Nathaniel Christian Oncken, DC
NPI 1447211214ActiveIndividual· Chiropractor· Greenwood, SC
Chiropractor (DC) in Greenwood, South Carolina, trained at Sherman College of Straight Chiropractic (class of 2005). Medicare paid $28,398 for services to 130 patients in 2024.
Overview
| NPI | 1447211214 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DC |
| Sole proprietor | Yes |
| NPI issued | Mar 31, 2006 |
| Last updated in NPPES | Feb 23, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Chiropractor Primary | 111N00000X | 3107 | SC |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Chiropractic (SC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 130 |
|---|---|
| Services billed | 1,087 across 3 procedure codes |
| Paid by Medicare | $28,398 |
Education and affiliations
| Medical school | Sherman College of Straight Chiropractic |
|---|---|
| Graduation year | 2005 |
| Medicare specialty | Chiropractic |
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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