Dr. Gregory Walker, MD
NPI: 1801250659
Total Payments
$18,008
2024 Payments
$465.54
Companies
14
Transactions
90
Medicare Patients
590
Medicare Billing
$58,286
Payment Breakdown by Category
Other$10,000 (55.5%)
Education$3,600 (20.0%)
Food & Beverage$2,624 (14.6%)
Travel$1,784 (9.9%)
Payments by Nature
| Nature of Payment | Amount | Transactions | Share |
|---|---|---|---|
| Grant | $10,000 | 1 | 55.5% |
| Education | $3,600 | 3 | 20.0% |
| Food and Beverage | $2,624 | 80 | 14.6% |
| Travel and Lodging | $1,784 | 6 | 9.9% |
Top Paying Companies
| Company | Total | Records | Latest Year |
|---|---|---|---|
| Arthrex, Inc. | $13,975 | 17 | $0 (2022) |
| Stryker Corporation | $1,601 | 18 | $0 (2024) |
| Sequoia Surgical, Inc. | $1,200 | 1 | $0 (2022) |
| Orthofix Medical, Inc. | $283.22 | 28 | $0 (2024) |
| ImpactOrtho, Inc. | $211.80 | 6 | $0 (2023) |
| Musculoskeletal Transplant Foundation Inc. | $177.48 | 2 | $0 (2023) |
| Smith+Nephew, Inc. | $149.48 | 5 | $0 (2024) |
| DePuy Synthes Sales Inc. | $107.12 | 2 | $0 (2023) |
| DJO, LLC | $97.45 | 3 | $0 (2024) |
| Amgen Inc. | $75.55 | 2 | $0 (2023) |
Payment History by Year
| Year | Amount | Transactions | Top Company |
|---|---|---|---|
| 2024 | $465.54 | 33 | Orthofix Medical, Inc. ($219.10) |
| 2023 | $704.52 | 21 | Musculoskeletal Transplant Foundation Inc. ($177.48) |
| 2022 | $16,755 | 35 | Arthrex, Inc. ($13,975) |
| 2021 | $83.33 | 1 | Stryker Corporation ($83.33) |
All Payment Transactions
90 individual payment records from CMS Open Payments — Page 1 of 4
| Date | Company | Product | Nature | Form | Amount | Type |
|---|---|---|---|---|---|---|
| 12/20/2024 | Paragon 28, Inc. | Phantom Fibula Nail (Device) | Food and Beverage | Cash or cash equivalent | $18.37 | General |
| Category: FOOT AND ANKLE IMPLANTS | ||||||
| 12/18/2024 | Orthofix Medical, Inc. | Physio-Stim (Device) | Food and Beverage | In-kind items and services | $19.22 | General |
| Category: Stimulator, Bone Growth, Non-Invasive | ||||||
| 11/14/2024 | Orthofix Medical, Inc. | Physio-Stim (Device) | Food and Beverage | In-kind items and services | $4.06 | General |
| Category: Stimulator, Bone Growth, Non-Invasive | ||||||
| 11/13/2024 | Orthofix Medical, Inc. | Physio-Stim (Device) | Food and Beverage | In-kind items and services | $11.30 | General |
| Category: Stimulator, Bone Growth, Non-Invasive | ||||||
| 10/08/2024 | Orthofix Medical, Inc. | Physio-Stim (Device) | Food and Beverage | In-kind items and services | $7.68 | General |
| Category: Stimulator, Bone Growth, Non-Invasive | ||||||
| 09/19/2024 | Orthofix Medical, Inc. | Physio-Stim (Device) | Food and Beverage | In-kind items and services | $9.30 | General |
| Category: Stimulator, Bone Growth, Non-Invasive | ||||||
| 08/09/2024 | Orthofix Medical, Inc. | Physio-Stim (Device) | Food and Beverage | In-kind items and services | $5.63 | General |
| Category: Stimulator, Bone Growth, Non-Invasive | ||||||
| 08/01/2024 | Orthofix Medical, Inc. | Physio-Stim (Device) | Food and Beverage | In-kind items and services | $0.96 | General |
| Category: Stimulator, Bone Growth, Non-Invasive | ||||||
| 07/31/2024 | Orthofix Medical, Inc. | Physio-Stim (Device) | Food and Beverage | In-kind items and services | $13.15 | General |
| Category: Stimulator, Bone Growth, Non-Invasive | ||||||
| 07/31/2024 | Orthofix Medical, Inc. | Physio-Stim (Device) | Food and Beverage | In-kind items and services | $3.84 | General |
| Category: Stimulator, Bone Growth, Non-Invasive | ||||||
| 07/26/2024 | Orthofix Medical, Inc. | Physio-Stim (Device) | Food and Beverage | In-kind items and services | $39.77 | General |
| Category: Stimulator, Bone Growth, Non-Invasive | ||||||
| 07/25/2024 | Stryker Corporation | INFINITY ADAPTIS (Device) | Food and Beverage | In-kind items and services | $33.17 | General |
| Category: TRAUMA & EXTREMITIES | ||||||
| 07/25/2024 | Orthofix Medical, Inc. | Physio-Stim (Device) | Food and Beverage | In-kind items and services | $5.85 | General |
| Category: Stimulator, Bone Growth, Non-Invasive | ||||||
| 07/09/2024 | Orthofix Medical, Inc. | Physio-Stim (Device) | Food and Beverage | In-kind items and services | $13.75 | General |
| Category: Stimulator, Bone Growth, Non-Invasive | ||||||
| 06/25/2024 | Orthofix Medical, Inc. | Physio-Stim (Device) | Food and Beverage | In-kind items and services | $4.47 | General |
| Category: Stimulator, Bone Growth, Non-Invasive | ||||||
| 06/12/2024 | Orthofix Medical, Inc. | Physio-Stim (Device) | Food and Beverage | In-kind items and services | $3.43 | General |
| Category: Stimulator, Bone Growth, Non-Invasive | ||||||
| 06/05/2024 | Orthofix Medical, Inc. | Physio-Stim (Device) | Food and Beverage | In-kind items and services | $2.88 | General |
| Category: Stimulator, Bone Growth, Non-Invasive | ||||||
| 05/30/2024 | Smith+Nephew, Inc. | — | Food and Beverage | In-kind items and services | $41.37 | General |
| 05/02/2024 | DJO, LLC | CMF (Device) | Food and Beverage | In-kind items and services | $26.89 | General |
| Category: Osteogenesis Stimulators | ||||||
| 05/02/2024 | Orthofix Medical, Inc. | Physio-Stim (Device) | Food and Beverage | In-kind items and services | $3.06 | General |
| Category: Stimulator, Bone Growth, Non-Invasive | ||||||
| 04/24/2024 | Orthofix Medical, Inc. | Physio-Stim (Device) | Food and Beverage | In-kind items and services | $3.52 | General |
| Category: Stimulator, Bone Growth, Non-Invasive | ||||||
| 04/18/2024 | MIMEDX Group, Inc. | — | Food and Beverage | In-kind items and services | $22.74 | General |
| 04/18/2024 | Orthofix Medical, Inc. | Physio-Stim (Device) | Food and Beverage | In-kind items and services | $4.58 | General |
| Category: Stimulator, Bone Growth, Non-Invasive | ||||||
| 04/09/2024 | Orthofix Medical, Inc. | Physio-Stim (Device) | Food and Beverage | In-kind items and services | $3.76 | General |
| Category: Stimulator, Bone Growth, Non-Invasive | ||||||
| 04/04/2024 | Orthofix Medical, Inc. | Physio-Stim (Device) | Food and Beverage | In-kind items and services | $2.82 | General |
| Category: Stimulator, Bone Growth, Non-Invasive | ||||||
Medicare Billing by Year
| Year | Procedures | Beneficiaries | Services | Submitted | Medicare Paid |
|---|---|---|---|---|---|
| 2023 | 10 | 364 | 495 | $152,910 | $41,419 |
| 2022 | 5 | 145 | 154 | $72,155 | $11,856 |
| 2021 | 4 | 81 | 90 | $11,994 | $5,011 |
Total Patients
590
Total Services
739
Medicare Billing
$58,286
Procedure Codes
19
All Medicare Procedures & Services
19 procedure records from CMS Medicare Utilization
| HCPCS | Description | Setting | Year | Patients | Services | Charges | Medicare Paid | Ratio |
|---|---|---|---|---|---|---|---|---|
| 27245 | Treatment of broken neck of thigh bone with bone implant | Facility | 2023 | 11 | 11 | $37,906 | $10,329 | 27.2% |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | Office | 2023 | 93 | 93 | $42,408 | $10,309 | 24.3% |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | Office | 2023 | 54 | 83 | $24,568 | $8,025 | 32.7% |
| 28470 | Closed treatment of broken bone in forefoot or midfoot | Office | 2023 | 16 | 26 | $15,964 | $3,844 | 24.1% |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Facility | 2023 | 24 | 24 | $9,144 | $2,369 | 25.9% |
| 73610 | X-ray of ankle, minimum of 3 views | Office | 2023 | 59 | 73 | $6,838 | $1,950 | 28.5% |
| 73630 | X-ray of foot, minimum of 3 views | Office | 2023 | 58 | 71 | $6,319 | $1,773 | 28.1% |
| 99203 | New patient office or other outpatient visit, 30-44 minutes | Office | 2023 | 19 | 19 | $5,624 | $1,639 | 29.1% |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | Office | 2023 | 16 | 18 | $3,600 | $1,113 | 30.9% |
| J3301 | Injection, triamcinolone acetonide, not otherwise specified, 10 mg | Office | 2023 | 14 | 77 | $539.00 | $67.97 | 12.6% |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | Office | 2022 | 61 | 61 | $32,010 | $6,841 | 21.4% |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | Office | 2022 | 39 | 47 | $19,466 | $3,878 | 19.9% |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | Office | 2022 | 12 | 12 | $3,049 | $488.63 | 16.0% |
| 20902 | Harvest of graft from large bone | Facility | 2022 | 17 | 17 | $16,047 | $344.34 | 2.1% |
| 73630 | X-ray of foot, minimum of 3 views | Office | 2022 | 16 | 17 | $1,583 | $304.20 | 19.2% |
| 99213 | Established patient outpatient visit, total time 20-29 minutes | Office | 2021 | 29 | 32 | $4,416 | $2,403 | 54.4% |
| 99203 | New patient outpatient visit, total time 30-44 minutes | Office | 2021 | 18 | 18 | $3,708 | $1,453 | 39.2% |
| 73630 | X-ray of foot, minimum of 3 views | Office | 2021 | 21 | 25 | $2,400 | $703.50 | 29.3% |
| 73610 | X-ray of ankle, minimum of 3 views | Office | 2021 | 13 | 15 | $1,470 | $451.35 | 30.7% |
About Dr. Gregory Walker, MD
Dr. Gregory Walker, MD is a Student in an Organized Health Care Education/Training Program healthcare provider based in Tucson, Arizona. This provider has been registered with the National Plan and Provider Enumeration System (NPPES) since 04/07/2016. The National Provider Identifier (NPI) number assigned to this provider is 1801250659.
According to the Centers for Medicare & Medicaid Services (CMS) Open Payments database, Dr. Gregory Walker, MD has received a total of $18,008 in payments from pharmaceutical and medical device companies, with $465.54 received in 2024. These payments were reported across 90 transactions from 14 companies. The most common payment nature is "Grant" ($10,000).
As a Medicare-enrolled provider, Walker has provided services to 590 Medicare beneficiaries, totaling 739 services with total Medicare billing of $58,286. Data is available for 3 years (2021–2023), covering 19 distinct procedure/service records.
Ad
Practice Information
- Specialty Student in an Organized Health Care Education/Training Program
- Other Specialties Foot and Ankle Surgery
- Location Tucson, AZ
- Active Since 04/07/2016
- Last Updated 11/28/2022
- Taxonomy Code 390200000X
- Entity Type Individual
- NPI Number 1801250659
Products in Payments
- SALVATION (Device) $853.52
- PROPHECY (Device) $288.23
- Physio-Stim (Device) $269.79
- AUGMENT INJECTABLE (Device) $164.04
- CMF (Device) $97.45
- HOFFMANN (Device) $83.33
- ALLOMATRIX (Device) $66.57
- NA (Device) $57.38
- PROSTEP MICA (Device) $53.88
- DISTAL EXTREMITIES IMPLANTS TRAUMA ANKLE FRACTURE (Device) $50.15
- MOTOBAND (Device) $49.74
- Panta 2 (Device) $41.35
- LAPIPLASTY SYSTEM (Device) $37.92
- COLLAGENASE SANTYL (Drug) $37.76
- ORTHOLOC 3DI (Device) $33.56
- INFINITY ADAPTIS (Device) $33.17
- TRIGEN INTERTAN (Device) $29.00
- EVENITY (Biological) $25.22
- ALLOPURE (Device) $24.36
- Apex 3D (Device) $19.90
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.
Student in an Organized Health Care Education/Training Program Doctors in Tucson
Ms. Jaspreet Chahal, Md, MD
Student in an Organized Health Care Education/Training Program — Payments: $98,842
Student in an Organized Health Care Education/Training Program $98,842
Dr. Christopher Luther, D.o, D.O
Student in an Organized Health Care Education/Training Program — Payments: $70,417
Student in an Organized Health Care Education/Training Program $70,417
Ryan Austerman, M.d, M.D
Student in an Organized Health Care Education/Training Program — Payments: $34,627
Student in an Organized Health Care Education/Training Program $34,627
Mrs. Hong Lei, Md, MD
Student in an Organized Health Care Education/Training Program — Payments: $22,413
Student in an Organized Health Care Education/Training Program $22,413
Colin Price, Md, MD
Student in an Organized Health Care Education/Training Program — Payments: $18,431
Student in an Organized Health Care Education/Training Program $18,431
Dr. Alexandre Benjo, Md, MD
Student in an Organized Health Care Education/Training Program — Payments: $18,357
Student in an Organized Health Care Education/Training Program $18,357