Clayton Devereau Humphrey, D.O.
NPI 1104289057ActiveIndividual· Hospitalist· Knoxville, TN
Hospitalist (D.O.) in Knoxville, Tennessee, trained at Lincoln Memorial University Medical Department (class of 2016). Their prescriptions cost Medicare Part D more than their services did: $87,978 for 469 claims, against $53,803 paid for services in 2024. E.R. Squibb & Sons, L.L.C. was the largest of 5 companies reporting payments in 2025, $232.88 in all, mostly food and beverage.
Overview
| NPI | 1104289057 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Mar 29, 2016 |
| Last updated in NPPES | Apr 4, 2024 |
| Certified by provider | Apr 2, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Hospitalist Primary | 208M00000X | 3530 | TN |
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 Practitioner - Internal Medicine (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 192 |
|---|---|
| Services billed | 708 across 15 procedure codes |
| Paid by Medicare | $53,803 |
Part D prescriptions in 2024
| Prescriptions (claims) | 469 · 660 30-day fills |
|---|---|
| Patients | 177 |
| Total drug cost | $87,978 |
| Generic share | 83% of claims |
Education and affiliations
| Medical school | Lincoln Memorial University Medical Department |
|---|---|
| Graduation year | 2016 |
| Medicare specialty | Internal Medicine |
Medical group
- University Health System, Inc.Knoxville, TN · 522 clinicians
Hospital affiliation
- University Health System, IncKnoxville, TN
Industry payments (Open Payments)
- 2025$232.88 · 11 payments from 5 companies
- 2024$238.98 · 12 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| E.R. Squibb & Sons, L.L.C. | $72.90 | 3 |
| Dexcom, Inc. | $65.25 | 3 |
| Vertex Pharmaceuticals Incorporated | $38.44 | 2 |
| Zoll Services LLC (A/K/A Zoll Lifecor Corp) | $30.86 | 2 |
| Abbvie Inc. | $25.43 | 1 |
What the 2025 payments were for
- Food and Beverage$232.88 · 11 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 77 hospitalists in Knoxville · All hospitalists in Tennessee