Dr. Robert Walker, MD

NPI: 1639531908
Total Payments
$23,851
2024 Payments
$1,984
Companies
19
Transactions
206
Medicare Patients
993
Medicare Billing
$107,895

Payment Breakdown by Category

Travel$9,035 (37.9%)
Food & Beverage$8,800 (36.9%)
Education$6,016 (25.2%)

Payments by Nature

Nature of Payment Amount Transactions Share
Travel and Lodging $9,035 45 37.9%
Food and Beverage $8,800 155 36.9%
Education $6,016 6 25.2%

Top Paying Companies

Company Total Records Latest Year
Stryker Corporation $7,780 71 $0 (2024)
ImpactOrtho, Inc. $4,346 35 $0 (2024)
ROCK MEDICAL ORTHOPEDICS, INC. $3,639 6 $0 (2022)
Sonex Health, Inc. $1,763 17 $0 (2024)
Zimmer Biomet Holdings, Inc. $1,667 23 $0 (2023)
Arthrex, Inc. $1,346 10 $0 (2023)
TriMed, Inc. $1,194 2 $0 (2023)
Nalu Medical, Inc. $553.34 12 $0 (2024)
DePuy Synthes Sales Inc. $331.91 6 $0 (2023)
Smith+Nephew, Inc. $320.12 7 $0 (2024)

Payment History by Year

Year Amount Transactions Top Company
2024 $1,984 38 Stryker Corporation ($810.16)
2023 $11,693 115 Stryker Corporation ($4,431)
2022 $7,636 49 Stryker Corporation ($2,539)
2021 $2,538 4 ROCK MEDICAL ORTHOPEDICS, INC. ($1,218)

All Payment Transactions

206 individual payment records from CMS Open Payments — Page 1 of 9

Date Company Product Nature Form Amount Type
12/21/2024 Stryker Corporation MAKO (Device) Food and Beverage In-kind items and services $24.70 General
Category: KNEES, HIPS
12/20/2024 Shoulder Innovations, Inc. InSet System (Device) Food and Beverage Cash or cash equivalent $50.25 General
Category: Orthopedic Implant
12/18/2024 ImpactOrtho, Inc. Food and Beverage In-kind items and services $10.20 General
12/13/2024 Sonex Health, Inc. SX-ONE MICROKNIFE (Device) Food and Beverage In-kind items and services $24.20 General
Category: ORTHOPEDIC
12/13/2024 Stryker Corporation AEQUALIS PERFORM REVERSED (Device) Food and Beverage In-kind items and services $21.54 General
Category: TRAUMA & EXTREMITIES
11/25/2024 Stryker Corporation AEQUALIS PERFORM REVERSED (Device) Food and Beverage In-kind items and services $52.11 General
Category: TRAUMA & EXTREMITIES
11/22/2024 Sonex Health, Inc. SX-ONE MICROKNIFE (Device) Food and Beverage In-kind items and services $18.23 General
Category: ORTHOPEDIC
11/19/2024 ImpactOrtho, Inc. Food and Beverage In-kind items and services $40.45 General
10/31/2024 Stryker Corporation BLUEPRINT PATIENT SPECIFIC INSTRUMENTATION (Device) Food and Beverage In-kind items and services $12.35 General
Category: TRAUMA & EXTREMITIES
10/25/2024 Nalu Medical, Inc. Nalu Neurostimulation System (Device) Food and Beverage In-kind items and services $122.64 General
Category: Pain Management
09/28/2024 Stryker Corporation AXSOS (Device) Food and Beverage In-kind items and services $14.50 General
Category: LOCKING PLATES
09/13/2024 Nalu Medical, Inc. Nalu Neurostimulation System (Device) Food and Beverage In-kind items and services $28.93 General
Category: Pain Management
09/12/2024 Nalu Medical, Inc. Nalu Neurostimulation System (Device) Food and Beverage In-kind items and services $9.62 General
Category: Pain Management
09/03/2024 Abbott Laboratories PROCLAIM (Device) Food and Beverage In-kind items and services $18.17 General
Category: Neuromodulation
08/13/2024 ImpactOrtho, Inc. Food and Beverage In-kind items and services $55.24 General
08/05/2024 Stryker Corporation ACTISHIELD (Device) Travel and Lodging Cash or cash equivalent $524.12 General
Category: TRAUMA & EXTREMITIES
07/22/2024 Nalu Medical, Inc. Nalu Neurostimulation System (Device) Food and Beverage In-kind items and services $6.63 General
Category: Pain Management
07/17/2024 Smith+Nephew, Inc. EVOS (Device), Evos Mini, EVOS Food and Beverage In-kind items and services $37.22 General
Category: Trauma Plates, Screws, and Nails
07/10/2024 Integra LifeSciences Corporation Integra (Device), Integra, Integra Food and Beverage In-kind items and services $36.30 General
Category: Recon-Skin and Wound
06/21/2024 Nalu Medical, Inc. Nalu Neurostimulation System (Device) Food and Beverage In-kind items and services $5.64 General
Category: Pain Management
06/18/2024 Nalu Medical, Inc. Nalu Neurostimulation System (Device) Food and Beverage In-kind items and services $42.79 General
Category: Pain Management
06/04/2024 Smith+Nephew, Inc. Food and Beverage In-kind items and services $17.21 General
06/01/2024 Shoulder Innovations, Inc. InSet System (Device) Food and Beverage Cash or cash equivalent $18.80 General
Category: Orthopedic Implant
05/31/2024 Sonex Health, Inc. SX-ONE MICROKNIFE (Device) Food and Beverage In-kind items and services $28.89 General
Category: ORTHOPEDIC
05/30/2024 Stryker Corporation AEQUALIS PERFORM REVERSED (Device) Food and Beverage In-kind items and services $25.25 General
Category: TRAUMA & EXTREMITIES

Medicare Billing by Year

Year Procedures Beneficiaries Services Submitted Medicare Paid
2023 16 851 1,657 $1.9M $96,201
2022 7 142 265 $306,991 $11,693
Total Patients
993
Total Services
1,922
Medicare Billing
$107,895
Procedure Codes
23

All Medicare Procedures & Services

23 procedure records from CMS Medicare Utilization

HCPCS Description Setting Year Patients Services Charges Medicare Paid Ratio
27236 Treatment of upper end of broken thigh bone with placement of stabilizing device or prosthetic replacement Facility 2023 21 21 $371,085 $18,556 5.0%
99214 Established patient office or other outpatient visit, 30-39 minutes Office 2023 116 168 $322,991 $15,608 4.8%
27245 Treatment of broken neck of thigh bone with bone implant Facility 2023 14 14 $253,457 $13,247 5.2%
77002 Fluoroscopic guidance for needle placement Office 2023 82 111 $193,630 $9,754 5.0%
99213 Established patient office or other outpatient visit, 20-29 minutes Office 2023 94 128 $172,561 $8,626 5.0%
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes Facility 2023 70 70 $135,263 $6,940 5.1%
99204 New patient office or other outpatient visit, 45-59 minutes Office 2023 58 58 $149,394 $6,546 4.4%
20610 Aspiration and/or injection of fluid from large joint Office 2023 69 95 $97,407 $4,820 4.9%
99203 New patient office or other outpatient visit, 30-44 minutes Office 2023 53 53 $87,765 $4,168 4.7%
99212 Established patient office or other outpatient visit, 10-19 minutes Office 2023 47 58 $48,684 $2,392 4.9%
20550 Injection into tendon or ligament Office 2023 42 60 $52,411 $2,236 4.3%
73130 X-ray of hand, minimum of 3 views Office 2023 21 30 $16,453 $855.30 5.2%
20600 Aspiration and/or injection of fluid from small joint Office 2023 12 18 $15,708 $755.70 4.8%
73110 X-ray of wrist, minimum of 3 views Office 2023 18 22 $13,292 $688.26 5.2%
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg Office 2023 122 734 $6,544 $628.81 9.6%
73070 X-ray of elbow, 2 views Office 2023 12 17 $7,643 $380.18 5.0%
99204 New patient office or other outpatient visit, 45-59 minutes Office 2022 24 24 $81,126 $3,061 3.8%
99214 Established patient office or other outpatient visit, 30-39 minutes Office 2022 27 30 $77,662 $2,964 3.8%
99213 Established patient office or other outpatient visit, 20-29 minutes Office 2022 21 23 $42,162 $1,613 3.8%
99222 Initial hospital inpatient care per day, typically 50 minutes Facility 2022 14 14 $37,996 $1,453 3.8%
77002 Fluoroscopic guidance for needle placement Office 2022 14 14 $35,550 $1,269 3.6%
20610 Aspiration and/or injection of fluid from large joint Office 2022 19 21 $31,557 $1,207 3.8%
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg Office 2022 23 139 $938.25 $126.67 13.5%

About Dr. Robert Walker, MD

Dr. Robert Walker, MD is a Orthopaedic Surgery healthcare provider based in Scottsdale, Arizona. This provider has been registered with the National Plan and Provider Enumeration System (NPPES) since 03/24/2016. The National Provider Identifier (NPI) number assigned to this provider is 1639531908.

According to the Centers for Medicare & Medicaid Services (CMS) Open Payments database, Dr. Robert Walker, MD has received a total of $23,851 in payments from pharmaceutical and medical device companies, with $1,984 received in 2024. These payments were reported across 206 transactions from 19 companies. The most common payment nature is "Travel and Lodging" ($9,035).

As a Medicare-enrolled provider, Walker has provided services to 993 Medicare beneficiaries, totaling 1,922 services with total Medicare billing of $107,895. Data is available for 2 years (2022–2023), covering 23 distinct procedure/service records.

Practice Information

  • Specialty Orthopaedic Surgery
  • Other Specialties Hand Surgery
  • Location Scottsdale, AZ
  • Active Since 03/24/2016
  • Last Updated 11/04/2025
  • Taxonomy Code 207X00000X
  • Entity Type Individual
  • NPI Number 1639531908

Products in Payments

  • BLUEPRINT PATIENT SPECIFIC INSTRUMENTATION (Device) $3,539
  • SX-ONE MICROKNIFE (Device) $1,763
  • Comprehensive Shoulder System (Device) $1,042
  • MAKO (Device) $926.15
  • PRO (Device) $679.18
  • AXSOS (Device) $649.89
  • Nalu Neurostimulation System (Device) $553.34
  • ACTISHIELD (Device) $524.12
  • VARIAX (Device) $329.46
  • Integra (Device) $259.00
  • ACUMED (Device) $256.17
  • AEQUALIS PERFORM REVERSED (Device) $185.58
  • AEQUALIS FLEX REVIVE (Device) $172.70
  • ORTHOLOC 3DI (Device) $170.19
  • TRIGEN INTERTAN (Device) $153.32
  • HOFFMANN (Device) $152.75
  • EVOS (Device) $136.00
  • Velys (Device) $134.63
  • Comprehensive (Device) $123.82
  • XIAFLEX (Biological) $120.56

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.

Orthopaedic Surgery Doctors in Scottsdale