Zachery Alexander Greathouse, MD
NPI 1033797675ActiveIndividual· Internal Medicine, Infectious Disease· Chapel Hill, NC
Internal Medicine, Infectious Disease (MD) in Chapel Hill, North Carolina, licensed in NC and WV, with an NPI issued in April 2021. Their prescriptions cost Medicare Part D more than their services did: $47,922 for 514 claims, against $2,290 paid for services in 2024. Electronic Waveform Lab, Inc. reported $22.78 in payments in 2024, mostly food and beverage.
Overview
| NPI | 1033797675 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 1, 2021 |
| Last updated in NPPES | Jun 27, 2025 |
| Certified by provider | Jun 27, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Infectious Disease Primary | 207RI0200X | 2025-00083 | NC |
| Internal Medicine | 207R00000X | 34099 | WV |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Order and Referring Only - Infectious Disease (NC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 28 |
|---|---|
| Services billed | 35 across 4 procedure codes |
| Paid by Medicare | $2,290 |
Part D prescriptions in 2024
| Prescriptions (claims) | 514 · 944 30-day fills |
|---|---|
| Patients | 66 |
| Total drug cost | $47,922 |
| Generic share | 83% of claims |
Industry payments (Open Payments)
- 2024$22.78 · 2 payments from 1 company
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Electronic Waveform Lab, Inc. | $22.78 | 2 |
What the 2024 payments were for
- Food and Beverage$22.78 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 41 infectious disease specialists in Chapel Hill · All infectious disease specialists in North Carolina