David Lee Demby Sr., FNP
NPI 1396285557ActiveIndividual· Nurse Practitioner· Lancaster, SC
Nurse Practitioner (FNP) with Liberty Doctors LLC and 1 other group, practicing in Lancaster, South Carolina. Their prescriptions cost Medicare Part D more than their services did: $412,798 for 4,196 claims, against $6,347 paid for services in 2024. Astellas Pharma US Inc was the largest of 5 companies reporting payments in 2025, $186.27 in all, mostly food and beverage. Lists Atrium Health Union and 1 other hospital as hospital affiliations.
Overview
| NPI | 1396285557 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | FNP |
| Sole proprietor | Yes |
| NPI issued | Mar 6, 2017 |
| Last updated in NPPES | Mar 12, 2026 |
| Certified by provider | Mar 12, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | 20606 | 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 - Nurse Practitioner (SC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 87 |
|---|---|
| Services billed | 121 across 4 procedure codes |
| Paid by Medicare | $6,347 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,196 · 8,259 30-day fills |
|---|---|
| Patients | 479 |
| Total drug cost | $412,798 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 2016 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical groups
- Liberty Doctors LLCGoose Creek, SC · 44 clinicians
- Healogics Specialty Physicians of South Carolina LLCConway, SC · 17 clinicians
Hospital affiliations
- Atrium Health UnionMonroe, NC
- Musc Health Lancaster Medical CenterLancaster, SC
Other facilities
- Adoration Home HealthHome health agency · Lancaster, SC
- Neighbors Care Home Health Agency, An Amedisys CoHome health agency · Chester, SC
Industry payments (Open Payments)
- 2025$186.27 · 7 payments from 5 companies
- 2024$263.86 · 14 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astellas Pharma US Inc | $68.99 | 1 |
| Pfizer Inc. | $43.81 | 2 |
| Novo Nordisk Inc | $34.51 | 2 |
| Astrazeneca Pharmaceuticals LP | $20.18 | 1 |
| Abbvie Inc. | $18.78 | 1 |
What the 2025 payments were for
- Food and Beverage$117.28 · 6 payments
- Education$68.99 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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