Dr. Donald Walker, MD

Vascular & Interventional Radiology Knoxville, TN Male
NPI: 1669664033
Total Payments
$4,754
2024 Payments
$391.99
Companies
13
Transactions
62
Medicare Patients
6,463
Medicare Billing
$239,582

Payment Breakdown by Category

Food & Beverage$3,732 (78.5%)
Travel$1,022 (21.5%)
Other$0.00 (0.0%)

Payments by Nature

Nature of Payment Amount Transactions Share
Food and Beverage $3,732 58 78.5%
Travel and Lodging $1,022 4 21.5%

Top Paying Companies

Company Total Records Latest Year
Inari Medical, Inc. $2,829 25 $0 (2024)
Boston Scientific Corporation $521.11 9 $0 (2024)
Getinge USA Sales, LLC $461.33 9 $0 (2024)
Sirtex Medical Inc $336.79 4 $0 (2022)
Maquet Cardiovascular U.S. Sales, L.L.C. $294.94 7 $0 (2020)
Medtronic, Inc. $189.04 1 $0 (2022)
Teleflex LLC $36.70 1 $0 (2023)
TriSalus Life Sciences, Inc. $16.33 1 $0 (2024)
Covidien LP $15.05 1 $0 (2018)
Cardinal Health 200, LLC $14.17 1 $0 (2019)

Payment History by Year

Year Amount Transactions Top Company
2024 $391.99 8 Inari Medical, Inc. ($329.31)
2023 $814.14 10 Inari Medical, Inc. ($497.63)
2022 $2,416 20 Inari Medical, Inc. ($1,802)
2021 $167.91 4 Getinge USA Sales, LLC ($167.91)
2020 $509.87 8 Maquet Cardiovascular U.S. Sales, L.L.C. ($243.61)
2019 $399.13 8 Sirtex Medical Inc ($155.27)
2018 $27.88 2 Covidien LP ($15.05)
2017 $27.05 2 Becton, Dickinson and Company ($14.05)

All Payment Transactions

62 individual payment records from CMS Open Payments — Page 1 of 3

Date Company Product Nature Form Amount Type
12/12/2024 Boston Scientific Corporation TheraSphere Y90 Glass Microspheres 10 GBq (Device) Food and Beverage In-kind items and services $14.50 General
Category: TheraSphere_PI
10/31/2024 Inari Medical, Inc. FLOWTRIEVER CATHETER, S (Device), CT THROMBECTOMY SYSTEM KIT Food and Beverage In-kind items and services $16.03 General
Category: VTE
06/14/2024 Inari Medical, Inc. FLOWTRIEVER CATHETER, S (Device), CT THROMBECTOMY SYSTEM KIT Food and Beverage In-kind items and services $13.92 General
Category: VTE
05/23/2024 Inari Medical, Inc. FLOWTRIEVER CATHETER, S (Device), CT THROMBECTOMY SYSTEM KIT Food and Beverage In-kind items and services $124.86 General
Category: VTE
05/10/2024 Inari Medical, Inc. CT THROMBECTOMY SYSTEM KIT (Device), FLOWTRIEVER CATHETER, S Food and Beverage In-kind items and services $12.44 General
Category: VTE
04/19/2024 TriSalus Life Sciences, Inc. TRINAV INFUSION SYSTEM (Device) Food and Beverage In-kind items and services $16.33 General
Category: ONCOLOGY
03/13/2024 Inari Medical, Inc. FLOWTRIEVER CATHETER, S (Device), CT THROMBECTOMY SYSTEM KIT Food and Beverage In-kind items and services $162.06 General
Category: VTE
01/27/2024 Getinge USA Sales, LLC FLIXENE (Device) Food and Beverage In-kind items and services $31.85 General
Category: Cardiology/Vascular Diseases
12/19/2023 Boston Scientific Corporation OBSIDIO (Device) Food and Beverage In-kind items and services $121.13 General
Category: Obsidio_PI
12/07/2023 Inari Medical, Inc. FLOWTRIEVER CATHETER, S (Device), CT THROMBECTOMY SYSTEM KIT Food and Beverage In-kind items and services $18.78 General
Category: VTE
12/04/2023 Inari Medical, Inc. FLOWTRIEVER CATHETER, S (Device), CT THROMBECTOMY SYSTEM KIT Food and Beverage In-kind items and services $175.97 General
Category: VTE
08/14/2023 Inari Medical, Inc. FLOWTRIEVER CATHETER, S (Device), CT THROMBECTOMY SYSTEM KIT Food and Beverage In-kind items and services $98.97 General
Category: VTE
08/14/2023 Inari Medical, Inc. FLOWTRIEVER CATHETER, S (Device), CT THROMBECTOMY SYSTEM KIT Food and Beverage In-kind items and services $28.22 General
Category: VTE
05/16/2023 Inari Medical, Inc. FLOWTRIEVER CATHETER, S (Device), CT THROMBECTOMY SYSTEM KIT Food and Beverage In-kind items and services $175.69 General
Category: VTE
04/01/2023 Getinge USA Sales, LLC Vasoview Hemopro 2 (Device) Food and Beverage In-kind items and services $81.94 General
Category: Cardiology/Vascular Diseases
03/09/2023 Getinge USA Sales, LLC Vasoview Hemopro 2 (Device) Food and Beverage In-kind items and services $55.78 General
Category: Cardiology/Vascular Diseases
03/01/2023 Teleflex LLC ARROW (Device) Food and Beverage In-kind items and services $36.70 General
Category: Interventional Access
02/09/2023 Getinge USA Sales, LLC Fusion Bioline Supported Vascular Grafts (Device) Food and Beverage In-kind items and services $20.96 General
Category: Cardiology/Vascular Diseases
12/14/2022 Boston Scientific Corporation General - Embolics (Device) Food and Beverage In-kind items and services $121.22 General
Category: General - Embolics_PI
12/06/2022 Boston Scientific Corporation General - Embolics (Device) Food and Beverage In-kind items and services $6.07 General
Category: General - Embolics_PI
11/30/2022 Sirtex Medical Inc SIR-Spheres Microspheres (Device) Food and Beverage Cash or cash equivalent $39.79 General
Category: Interventional Oncology
11/16/2022 Inari Medical, Inc. CT THROMBECTOMY SYSTEM KIT (Device), FLOWTRIEVER CATHETER, S Travel and Lodging Cash or cash equivalent $660.91 General
Category: VTE
11/16/2022 Inari Medical, Inc. CT THROMBECTOMY SYSTEM KIT (Device), FLOWTRIEVER CATHETER, S Food and Beverage Cash or cash equivalent $143.51 General
Category: VTE
11/15/2022 Inari Medical, Inc. FLOWTRIEVER CATHETER, S (Device), CT THROMBECTOMY SYSTEM KIT Travel and Lodging In-kind items and services $42.55 General
Category: VTE
11/15/2022 Inari Medical, Inc. FLOWTRIEVER CATHETER, S (Device), CT THROMBECTOMY SYSTEM KIT Travel and Lodging In-kind items and services $34.04 General
Category: VTE
123»

Medicare Billing by Year

Year Procedures Beneficiaries Services Submitted Medicare Paid
2023 35 1,854 1,982 $369,837 $69,937
2022 35 1,304 1,411 $301,461 $62,239
2021 40 1,557 1,630 $211,808 $46,105
2020 44 1,748 1,852 $268,650 $61,300
Total Patients
6,463
Total Services
6,875
Medicare Billing
$239,582
Procedure Codes
175

All Medicare Procedures & Services

175 procedure records from CMS Medicare Utilization — Page 1 of 7

HCPCS Description Setting Year Patients Services Charges Medicare Paid Ratio
71275 Ct scan of blood vessels of chest with contrast Facility 2023 107 108 $35,208 $6,593 18.7%
74174 Ct scan of blood vessels of abdomen and pelvis with contrast Facility 2023 77 78 $30,498 $5,646 18.5%
74177 Ct scan of abdomen and pelvis with contrast Facility 2023 85 87 $28,449 $5,302 18.6%
36561 Insertion of central venous tube with port (5 years or older) Facility 2023 20 20 $23,980 $4,842 20.2%
49083 Drainage of fluid from abdominal cavity using imaging guidance Facility 2023 36 57 $22,059 $4,133 18.7%
74174 Ct scan of blood vessels of abdomen and pelvis with contrast Office 2023 29 32 $12,512 $2,412 19.3%
71275 Ct scan of blood vessels of chest with contrast Office 2023 39 39 $12,714 $2,407 18.9%
74177 Ct scan of abdomen and pelvis with contrast Office 2023 39 40 $13,080 $2,338 17.9%
74176 Ct scan of abdomen and pelvis without contrast Facility 2023 37 37 $11,830 $2,286 19.3%
70450 Ct scan head or brain without contrast Facility 2023 76 77 $12,158 $2,273 18.7%
32408 Core needle biopsy of lung or center cavity of chest (mediastinum), accessed through skin Facility 2023 20 20 $11,200 $2,263 20.2%
32555 Aspiration of fluid from chest cavity using imaging guidance Facility 2023 25 29 $11,687 $2,258 19.3%
71260 Ct scan of chest with contrast Facility 2023 56 56 $11,867 $2,059 17.3%
71045 X-ray of chest, 1 view Facility 2023 300 319 $10,527 $2,017 19.2%
38222 Biopsy and aspiration of bone marrow sample for diagnosis Facility 2023 35 38 $10,640 $1,971 18.5%
99152 Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes Facility 2023 183 205 $9,225 $1,871 20.3%
49440 Insertion of stomach tube using fluoroscopic guidance with contrast Facility 2023 12 12 $8,844 $1,796 20.3%
75774 Review by radiologist of additional artery image Facility 2023 14 49 $8,477 $1,710 20.2%
71260 Ct scan of chest with contrast Office 2023 42 43 $8,944 $1,644 18.4%
71250 Ct scan of chest without contrast Facility 2023 35 36 $6,984 $1,313 18.8%
77012 Review by radiologist of ct guidance for needle placement Facility 2023 24 24 $6,312 $1,274 20.2%
75635 Ct scan of abdominal aorta and both leg arteries with contrast Facility 2023 15 15 $6,345 $1,204 19.0%
71250 Ct scan of chest without contrast Office 2023 25 25 $4,850 $950.78 19.6%
71046 X-ray of chest, 2 views Facility 2023 116 118 $4,642 $922.20 19.9%
72125 Ct scan of upper spine without contrast Facility 2023 25 25 $4,475 $820.45 18.3%
123…7»

About Dr. Donald Walker, MD

Dr. Donald Walker, MD is a Vascular & Interventional Radiology healthcare provider based in Knoxville, Tennessee. This provider has been registered with the National Plan and Provider Enumeration System (NPPES) since 08/09/2007. The National Provider Identifier (NPI) number assigned to this provider is 1669664033.

According to the Centers for Medicare & Medicaid Services (CMS) Open Payments database, Dr. Donald Walker, MD has received a total of $4,754 in payments from pharmaceutical and medical device companies, with $391.99 received in 2024. These payments were reported across 62 transactions from 13 companies. The most common payment nature is "Food and Beverage" ($3,732).

As a Medicare-enrolled provider, Walker has provided services to 6,463 Medicare beneficiaries, totaling 6,875 services with total Medicare billing of $239,582. Data is available for 4 years (2020–2023), covering 175 distinct procedure/service records.

Practice Information

  • Specialty Vascular & Interventional Radiology
  • Other Specialties Vascular & Interventional Radiology, Diagnostic Radiology
  • Location Knoxville, TN
  • Active Since 08/09/2007
  • Last Updated 10/31/2022
  • Taxonomy Code 2085R0204X
  • Entity Type Individual
  • NPI Number 1669664033

Products in Payments

  • FLOWTRIEVER CATHETER, S (Device) $1,812
  • CT THROMBECTOMY SYSTEM KIT (Device) $816.86
  • Vasoview Hemopro 2 (Device) $408.52
  • SIR-Spheres Microspheres (Device) $336.79
  • Express (Device) $294.94
  • FlowTriever (Device) $200.21
  • ABRE (Device) $189.04
  • TheraSphere Y90 Glass Microspheres 10 GBq (Device) $151.05
  • General - Embolics (Device) $127.29
  • OBSIDIO (Device) $121.13
  • GENERAL EMBOLICS (Device) $87.66
  • ARROW (Device) $36.70
  • FLIXENE (Device) $31.85
  • Fusion Bioline Supported Vascular Grafts (Device) $20.96
  • ICEfx Cryoablation System (Device) $18.96
  • TRINAV INFUSION SYSTEM (Device) $16.33
  • GENERAL - GUIDEWIRES (Device) $15.02
  • CFN PleurX (Device) $14.05
  • Indigo (Device) $13.00
  • TYRX (Device) $12.83

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Data Sources

Provider data from NPPES. Payment data from CMS Open Payments. Medicare data from CMS Medicare Provider Utilization. All data is public and updated periodically.

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