Greg A. Zweiacher, DC
NPI 1801873385ActiveIndividual· Chiropractor· Smyrna, DE
Chiropractor (DC) in Smyrna, Delaware, trained at Palmer College Chiropractic - Davenport (class of 1991). Medicare paid $32,932 for services to 117 patients in 2024.
Overview
| NPI | 1801873385 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DC |
| Sole proprietor | No |
| NPI issued | Dec 27, 2005 |
| Last updated in NPPES | May 29, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Chiropractor Primary | 111N00000X | F10000349 | DE |
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 (DE) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 117 |
|---|---|
| Services billed | 1,337 across 2 procedure codes |
| Paid by Medicare | $32,932 |
Education and affiliations
| Medical school | Palmer College Chiropractic - Davenport |
|---|---|
| Graduation year | 1991 |
| 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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