Doctor profile · Federal record
Dr. William Walker, MD
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (CMS: General Surgery) · Vascular Surgery Physician · Knoxville, TN
- NPI 1770551368
- Accepts Medicare
- MIPS 88.8 / 100 · 2023
- 45 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
10810 Parkside Dr Ste 208
Knoxville, TN 379341981
(865) 647-3350
fax (865) 647-3359
Credentials & registration
- NPI registered
- March 2006 — 20 yrs on file
- Profile last updated
- September 10, 2020
- Year of graduation
- 1981 — 45 yrs since
- Specialty taxonomy
- 208G00000X — NUCC code
- State license (1)
- Tennessee #14057
- Medicaid
- TN #3002187
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1770551368. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
275
Distinct HCPCS
7
Medicare allowed
$167,342
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
33508 |
Harvest of vein using an endoscope | 69 | 69 | $14 | |
33361 |
Replacement of aortic valve through the skin and femoral artery | 68 | 68 | $664 | |
33533 |
Coronary artery bypass using artery graft, 1 graft | 64 | 64 | $1,559 | |
33518 |
Coronary artery bypass using vein or artery graft, 2 grafts | 32 | 32 | $342 | |
33517 |
Coronary artery bypass using vein or artery graft, 1 graft | 17 | 17 | $163 | |
33519 |
Coronary artery bypass using vein or artery graft, 3 grafts | 13 | 13 | $487 | |
33268 |
Exclusion of appendage of left upper chamber of heart performed during other procedure on chest | 12 | 12 | $118 |
In context: peer comparison
Among 8 peers in Knoxville Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician, average services per provider: 26. This provider delivers 11× the peer median.Open Payments
Industry payments received
All-time total
$1,214
Transactions
39
Manufacturers
9
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Atricure, INC. | 22 | $514.11 | |
| Edwards Lifesciences Corporation | 3 | $178.93 | |
| Getinge USA Sales, LLC | 4 | $124.11 | |
| Artivion, INC. | 4 | $107.33 | |
| Sanara MedTech INC. | 1 | $102.33 | |
| Zimmer Biomet Holdings, INC. | 1 | $86.57 | |
| Abiomed | 2 | $49.32 | |
| ConvaTec INC. | 1 | $30.03 | |
| Zoll Services LLC (A/K/A Zoll LifeCor Corp) | 1 | $21.11 |
By nature of payment
Hospital affiliations
Frequently asked questions
What is Dr. William Walker's medical specialty?
Dr. William Walker practices Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in Knoxville, TN.
Where does Dr. William Walker practice?
Dr. William Walker practices at 10810 Parkside Dr Ste 208, Knoxville, TN 379341981. Office phone: 8656473350.
What is Dr. William Walker's NPI?
Dr. William Walker's National Provider Identifier (NPI) is 1770551368, issued by NPPES.
Does Dr. William Walker accept Medicare assignment?
Yes. Dr. William Walker accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Walker commonly perform?
Top Medicare-reported procedures in 2023: Harvest of vein using an endoscope (HCPCS 33508); Replacement of aortic valve through the skin and femoral artery (HCPCS 33361); Coronary artery bypass using artery graft, 1 graft (HCPCS 33533). Source: CMS Medicare Physician & Other Practitioners file.