Total Payments
$8,424
2024 Payments
$259.22
Companies
27
Transactions
99
Medicare Patients
16,051
Medicare Billing
$492,113
Payment Breakdown by Category
Food & Beverage$4,530 (53.8%)
Travel$3,893 (46.2%)
Payments by Nature
| Nature of Payment | Amount | Transactions | Share |
|---|---|---|---|
| Food and Beverage | $4,530 | 85 | 53.8% |
| Travel and Lodging | $3,893 | 14 | 46.2% |
Top Paying Companies
| Company | Total | Records | Latest Year |
|---|---|---|---|
| Boston Scientific Corporation | $3,111 | 20 | $0 (2024) |
| Bard Peripheral Vascular, Inc. | $1,695 | 14 | $0 (2020) |
| Stryker Corporation | $1,160 | 7 | $0 (2019) |
| Penumbra, Inc. | $282.86 | 2 | $0 (2021) |
| Nevro Corp. | $272.80 | 7 | $0 (2024) |
| Siemens Medical Solutions USA, Inc. | $198.44 | 3 | $0 (2022) |
| Terumo Medical Corporation | $177.52 | 2 | $0 (2021) |
| Medtronic, Inc. | $163.40 | 4 | $0 (2024) |
| Biocompatibles, Inc. | $151.67 | 2 | $0 (2018) |
| Spinal Simplicity, LLC | $148.11 | 5 | $0 (2024) |
Payment History by Year
| Year | Amount | Transactions | Top Company |
|---|---|---|---|
| 2024 | $259.22 | 10 | Nevro Corp. ($99.62) |
| 2023 | $2,392 | 29 | Boston Scientific Corporation ($1,542) |
| 2022 | $31.64 | 2 | Medtronic, Inc. ($20.00) |
| 2021 | $488.97 | 5 | Penumbra, Inc. ($282.86) |
| 2020 | $873.65 | 7 | Bard Peripheral Vascular, Inc. ($820.62) |
| 2019 | $2,846 | 21 | Boston Scientific Corporation ($1,384) |
| 2018 | $306.60 | 9 | Terumo Medical Corporation ($155.72) |
| 2017 | $1,226 | 16 | Bard Peripheral Vascular, Inc. ($645.94) |
All Payment Transactions
99 individual payment records from CMS Open Payments — Page 1 of 4
| Date | Company | Product | Nature | Form | Amount | Type |
|---|---|---|---|---|---|---|
| 06/04/2024 | Salix Pharmaceuticals, a division of Bausch Health US, LLC | RELISTOR (Drug) | Food and Beverage | In-kind items and services | $15.73 | General |
| Category: Gastroenterology | ||||||
| 03/15/2024 | Nevro Corp. | Senza (Device) | Food and Beverage | In-kind items and services | $26.92 | General |
| Category: Spinal Cord Stimulator | ||||||
| 02/27/2024 | Medtronic, Inc. | INTELLIS ADAPTIVESTIM (Device) | Food and Beverage | In-kind items and services | $69.54 | General |
| Category: Spinal Cord Neurostimulation | ||||||
| 02/22/2024 | Nevro Corp. | Senza (Device) | Food and Beverage | In-kind items and services | $26.55 | General |
| Category: Spinal Cord Stimulator | ||||||
| 02/12/2024 | Salix Pharmaceuticals, a division of Bausch Health US, LLC | RELISTOR (Drug) | Food and Beverage | In-kind items and services | $15.73 | General |
| Category: Gastroenterology | ||||||
| 02/08/2024 | Boston Scientific Corporation | Intracept (Device) | Food and Beverage | Cash or cash equivalent | $26.40 | General |
| Category: Pain | ||||||
| 02/07/2024 | Nevro Corp. | Senza (Device) | Food and Beverage | In-kind items and services | $13.89 | General |
| Category: Spinal Cord Stimulator | ||||||
| 01/17/2024 | Spinal Simplicity, LLC | HA MINUTEMAN G3-R (Device) | Food and Beverage | In-kind items and services | $18.87 | General |
| Category: SPINAL HARDWARE | ||||||
| 01/11/2024 | Nevro Corp. | Senza (Device) | Food and Beverage | In-kind items and services | $32.26 | General |
| Category: Spinal Cord Stimulator | ||||||
| 01/10/2024 | Salix Pharmaceuticals, a division of Bausch Health US, LLC | RELISTOR (Drug) | Food and Beverage | In-kind items and services | $13.33 | General |
| Category: Gastroenterology | ||||||
| 12/15/2023 | MML US, Inc. | ReActiv8 (Device) | Food and Beverage | Cash or cash equivalent | $13.94 | General |
| Category: Pain Management | ||||||
| 12/12/2023 | Spinal Simplicity, LLC | HA MINUTEMAN G3-R (Device) | Food and Beverage | In-kind items and services | $113.17 | General |
| Category: SPINAL HARDWARE | ||||||
| 12/04/2023 | Spinal Simplicity, LLC | HA MINUTEMAN G3-R (Device) | Food and Beverage | In-kind items and services | $6.25 | General |
| Category: SPINAL HARDWARE | ||||||
| 11/28/2023 | Salix Pharmaceuticals, a division of Bausch Health US, LLC | RELISTOR (Drug) | Food and Beverage | In-kind items and services | $13.46 | General |
| Category: Gastroenterology | ||||||
| 11/27/2023 | Boston Scientific Corporation | — | Food and Beverage | In-kind items and services | $15.42 | General |
| Category: General - Pain Management_NMD | ||||||
| 11/14/2023 | Relievant Medsystems, Inc. | Intracept (Device), Intracept, Intracept | Food and Beverage | Cash or cash equivalent | $24.57 | General |
| Category: Pain | ||||||
| 11/01/2023 | Salix Pharmaceuticals, a division of Bausch Health US, LLC | RELISTOR (Drug) | Food and Beverage | In-kind items and services | $15.24 | General |
| Category: Gastroenterology | ||||||
| 10/14/2023 | Boston Scientific Corporation | — | Travel and Lodging | In-kind items and services | $478.10 | General |
| Category: General - Therapies_NMD | ||||||
| 10/14/2023 | Boston Scientific Corporation | — | Travel and Lodging | In-kind items and services | $150.00 | General |
| Category: General - Therapies_NMD | ||||||
| 10/14/2023 | Boston Scientific Corporation | — | Travel and Lodging | In-kind items and services | $113.37 | General |
| Category: General - Therapies_NMD | ||||||
| 10/14/2023 | Boston Scientific Corporation | — | Food and Beverage | In-kind items and services | $67.25 | General |
| Category: General - Therapies_NMD | ||||||
| 10/13/2023 | Boston Scientific Corporation | — | Travel and Lodging | In-kind items and services | $375.77 | General |
| Category: General - Therapies_NMD | ||||||
| 10/13/2023 | Boston Scientific Corporation | — | Travel and Lodging | In-kind items and services | $211.68 | General |
| Category: General - Therapies_NMD | ||||||
| 10/05/2023 | Curonix LLC | PNS FREEDOM-4A PERMANENT NEUROSTIMULATOR RECEIVER KIT CHANNEL A (Device) | Food and Beverage | In-kind items and services | $21.14 | General |
| Category: PAIN MANAGEMENT | ||||||
| 10/04/2023 | Boston Scientific Corporation | — | Food and Beverage | In-kind items and services | $113.52 | General |
| Category: General - Pain Management_NMD | ||||||
Medicare Billing by Year
| Year | Procedures | Beneficiaries | Services | Submitted | Medicare Paid |
|---|---|---|---|---|---|
| 2023 | 20 | 558 | 641 | $208,394 | $40,494 |
| 2022 | 44 | 2,325 | 2,475 | $338,493 | $66,434 |
| 2021 | 84 | 6,838 | 7,534 | $1.0M | $194,749 |
| 2020 | 85 | 6,330 | 7,015 | $929,797 | $190,436 |
Total Patients
16,051
Total Services
17,665
Medicare Billing
$492,113
Procedure Codes
314
All Medicare Procedures & Services
314 procedure records from CMS Medicare Utilization — Page 1 of 13
| HCPCS | Description | Setting | Year | Patients | Services | Charges | Medicare Paid | Ratio |
|---|---|---|---|---|---|---|---|---|
| 99204 | New patient office or other outpatient visit, 45-59 minutes | Office | 2023 | 63 | 63 | $19,747 | $7,539 | 38.2% |
| 72148 | Mri scan of lower spinal canal without contrast | Office | 2023 | 43 | 43 | $46,061 | $6,147 | 13.3% |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | Office | 2023 | 40 | 59 | $14,169 | $5,638 | 39.8% |
| 73221 | Mri scan of arm joint without contrast | Office | 2023 | 32 | 32 | $36,539 | $4,742 | 13.0% |
| 73721 | Mri scan of leg joint without contrast | Office | 2023 | 25 | 25 | $27,515 | $3,766 | 13.7% |
| 72141 | Mri scan of upper spinal canal without contrast | Office | 2023 | 18 | 18 | $19,965 | $2,345 | 11.7% |
| 62323 | Injection of substance into lower spine canal using imaging guidance | Office | 2023 | 12 | 12 | $8,530 | $2,141 | 25.1% |
| 74177 | Ct scan of abdomen and pelvis with contrast | Facility | 2023 | 24 | 24 | $6,432 | $1,604 | 24.9% |
| 70450 | Ct scan head or brain without contrast | Facility | 2023 | 35 | 38 | $4,750 | $1,165 | 24.5% |
| 71045 | X-ray of chest, 1 view | Facility | 2023 | 104 | 146 | $3,915 | $949.55 | 24.3% |
| 70496 | Ct scan of blood vessels of head with contrast | Facility | 2023 | 15 | 15 | $3,855 | $825.26 | 21.4% |
| 70498 | Ct scan of blood vessels of neck with contrast | Facility | 2023 | 15 | 15 | $3,855 | $805.86 | 20.9% |
| 71275 | Ct scan of blood vessels of chest with contrast | Facility | 2023 | 11 | 11 | $2,937 | $725.83 | 24.7% |
| 71260 | Ct scan of chest with contrast | Facility | 2023 | 12 | 12 | $2,196 | $497.90 | 22.7% |
| 72110 | X-ray of lower and sacral spine, minimum of 4 views | Office | 2023 | 13 | 13 | $1,685 | $428.08 | 25.4% |
| 72125 | Ct scan of upper spine without contrast | Facility | 2023 | 11 | 11 | $1,727 | $389.04 | 22.5% |
| J1040 | Injection, methylprednisolone acetate, 80 mg | Office | 2023 | 35 | 44 | $1,454 | $376.06 | 25.9% |
| 74018 | X-ray of abdomen, 1 view | Facility | 2023 | 24 | 30 | $2,190 | $201.60 | 9.2% |
| 71046 | X-ray of chest, 2 views | Facility | 2023 | 12 | 14 | $462.00 | $112.56 | 24.4% |
| J1030 | Injection, methylprednisolone acetate, 40 mg | Office | 2023 | 14 | 16 | $408.61 | $94.54 | 23.1% |
| 70450 | Ct scan head or brain without contrast | Facility | 2022 | 174 | 184 | $20,093 | $4,991 | 24.8% |
| 72148 | Mri scan of lower spinal canal without contrast | Office | 2022 | 37 | 37 | $26,690 | $3,741 | 14.0% |
| 74176 | Ct scan of abdomen and pelvis without contrast | Facility | 2022 | 57 | 58 | $19,112 | $3,257 | 17.0% |
| 74177 | Ct scan of abdomen and pelvis with contrast | Facility | 2022 | 49 | 50 | $14,552 | $3,123 | 21.5% |
| 74178 | Ct scan of abdomen and pelvis before and after contrast | Facility | 2022 | 42 | 42 | $12,600 | $2,973 | 23.6% |
About Dr. Marshall Walker, M.D
Dr. Marshall Walker, M.D is a Diagnostic Radiology healthcare provider based in Mobile, Alabama. This provider has been registered with the National Plan and Provider Enumeration System (NPPES) since 05/04/2010. The National Provider Identifier (NPI) number assigned to this provider is 1619295441.
According to the Centers for Medicare & Medicaid Services (CMS) Open Payments database, Dr. Marshall Walker, M.D has received a total of $8,424 in payments from pharmaceutical and medical device companies, with $259.22 received in 2024. These payments were reported across 99 transactions from 27 companies. The most common payment nature is "Food and Beverage" ($4,530).
As a Medicare-enrolled provider, Walker has provided services to 16,051 Medicare beneficiaries, totaling 17,665 services with total Medicare billing of $492,113. Data is available for 4 years (2020–2023), covering 314 distinct procedure/service records.
Ad
Practice Information
- Specialty Diagnostic Radiology
- Other Specialties Diagnostic Radiology, Vascular & Interventional Radiology
- Location Mobile, AL
- Active Since 05/04/2010
- Last Updated 11/21/2025
- Taxonomy Code 2085R0202X
- Entity Type Individual
- Practice Solo Practitioner
- NPI Number 1619295441
Products in Payments
- IVS - VERTEBRAL AUGMENTATION PRODUCTS (Device) $1,110
- DIREXION (Device) $1,064
- Senza (Device) $272.80
- BPV-Fluency (Device) $246.32
- MAGNETOM Aera (Device) $186.80
- AZUR (Device) $155.72
- BPV-Denali (Device) $152.61
- THERASPHERE - BIO (Device) $151.67
- HA MINUTEMAN G3-R (Device) $148.11
- PAINTEQ (Device) $148.01
- INTELLIS ADAPTIVESTIM (Device) $143.40
- Indigo System (Device) $141.82
- RUBY Coil (Device) $141.04
- mild Device Kit (Device) $132.17
- GENERAL NON VASCULAR INTERVENTION (Device) $124.38
- BPV-ClearVUE (Device) $124.06
- BPV-Glidepath Catheter (Device) $122.95
- EMBOZENE (Device) $117.35
- SwiftNINJA Steerable Microcatheter (Device) $102.70
- VIATORR TIPS Endoprosthesis w/ (Device) $93.51
Explore
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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