Christopher Aaron Dalby, PA
NPI 1104329069ActiveIndividual· Physician Assistant, Surgical· Knoxville, TN
Physician Assistant, Surgical (PA) with Ivan N. Cooper, DPM, PC, practicing in Knoxville, Tennessee. 396 Medicare patients in 2024, $79,368 paid; nearly all of their 172 Part D prescriptions were generic (94%). Organogenesis Inc. was the largest of 13 companies reporting payments in 2025, $850.58 in all, mostly food and beverage. Lists University Health System, Inc as a hospital affiliation.
Overview
| NPI | 1104329069 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA |
| Sole proprietor | No |
| NPI issued | Mar 16, 2018 |
| Last updated in NPPES | Mar 16, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant, Surgical Primary | 363AS0400X | 3528 | TN |
| Physician Assistant, Medical | 363AM0700X | 3528 | 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 - Physician Assistant (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 396 |
|---|---|
| Services billed | 1,343 across 35 procedure codes |
| Paid by Medicare | $79,368 |
Part D prescriptions in 2024
| Prescriptions (claims) | 172 · 174 30-day fills |
|---|---|
| Patients | 112 |
| Total drug cost | $3,439 |
| Generic share | 94% of claims |
Education and affiliations
| Graduation year | 2017 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Ivan N. Cooper, DPM, PCLenoir City, TN · 4 clinicians
Hospital affiliation
- University Health System, IncKnoxville, TN
Industry payments (Open Payments)
- 2025$850.58 · 30 payments from 13 companies
- 2024$1,063 · 42 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Organogenesis Inc. | $225.75 | 7 |
| Smith+nephew, Inc. | $145.70 | 5 |
| Stryker Corporation | $118.40 | 1 |
| Acera Surgical, Inc. | $93.43 | 4 |
| Abbvie Inc. | $75.60 | 4 |
What the 2025 payments were for
- Food and Beverage$850.58 · 30 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 43 surgical physician assistants in Knoxville · All surgical physician assistants in Tennessee