Charles L. Knupp, MD
NPI 1154313575ActiveIndividual· Internal Medicine, Hematology & Oncology· Greenville, NC
Internal Medicine, Hematology & Oncology (MD) in Greenville, North Carolina, trained at University of Maryland School of Medicine (class of 1976). Their prescriptions cost Medicare Part D more than their services did: $1,721,999 for 968 claims, against $35,588 paid for services in 2024. Masimo Corporation reported $14.31 in payments in 2024, mostly food and beverage.
Overview
| NPI | 1154313575 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 22, 2005 |
| Last updated in NPPES | Nov 8, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 24433 | NC |
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 - Hematology/Oncology (NC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 197 |
|---|---|
| Services billed | 480 across 16 procedure codes |
| Paid by Medicare | $35,588 |
Part D prescriptions in 2024
| Prescriptions (claims) | 968 · 1,156 30-day fills |
|---|---|
| Patients | 100 |
| Total drug cost | $1,721,999 |
| Generic share | 77% of claims |
Education and affiliations
| Medical school | University of Maryland School of Medicine |
|---|---|
| Graduation year | 1976 |
| Medicare specialty | Hematology/Oncology |
| Secondary specialties | Internal Medicine |
Medical group
- Vidant Medical Group LLCAhoskie, NC · 1,012 clinicians
Hospital affiliation
- Ecu Health Medical CenterGreenville, NC
Industry payments (Open Payments)
- 2024$14.31 · 1 payment from 1 company
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Masimo Corporation | $14.31 | 1 |
What the 2024 payments were for
- Food and Beverage$14.31 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Hematology & Oncology providers in Greenville
- 1437102209
- 1376752618
- 1255349361
- 1275702417
- 1346802634
- 1912359506
- 1316079262
- 1134475650
- 1811990831
- 1811980071
- 1053304212
- 1528051729
All Internal Medicine, Hematology & Oncology providers in North Carolina →