Dr. Richard Williamson, MD

Neurological Surgery Chandler, AZ Male
NPI: 1609040609
Total Payments
$25,270
2024 Payments
$8,293
Companies
23
Transactions
164
Medicare Patients
1,616
Medicare Billing
$171,336

Payment Breakdown by Category

Food & Beverage$10,006 (39.6%)
Consulting$8,669 (34.3%)
Travel$3,732 (14.8%)
Other$2,400 (9.5%)
Research$443.65 (1.8%)
Education$20.00 (0.1%)

Payments by Nature

Nature of Payment Amount Transactions Share
Food and Beverage $10,006 145 39.6%
Consulting Fee $8,669 3 34.3%
Travel and Lodging $3,732 13 14.8%
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program $2,400 1 9.5%
Unspecified $443.65 1 1.8%
Education $20.00 1 0.1%

Payments by Type

General
$24,826
163 transactions
Research
$443.65
1 transactions

Top Paying Companies

Company Total Records Latest Year
Medical Device Business Services, Inc. $7,253 14 $0 (2024)
Penumbra, Inc. $4,688 40 $0 (2024)
Synaptive Medical Inc. $4,345 3 $0 (2021)
Stryker Corporation $3,175 35 $0 (2023)
DePuy Synthes Sales Inc. $1,237 14 $0 (2024)
Medtronic USA, Inc. $822.94 13 $0 (2020)
Corindus Inc. $639.95 5 $0 (2019)
Siemens Medical Solutions USA, Inc. $530.77 7 $0 (2022)
NICO Corporation $443.65 1 $0 (2018)
Medtronic, Inc. $368.41 5 $0 (2024)

Payment History by Year

Year Amount Transactions Top Company
2024 $8,293 25 Medical Device Business Services, Inc. ($7,215)
2023 $1,029 15 Stryker Corporation ($402.30)
2022 $1,350 18 Stryker Corporation ($313.70)
2021 $5,502 16 Synaptive Medical Inc. ($4,345)
2020 $725.25 16 Stryker Corporation ($398.29)
2019 $3,108 34 Stryker Corporation ($1,256)
2018 $3,910 17 Penumbra, Inc. ($2,674)
2017 $1,353 23 Stryker Corporation ($464.51)

All Payment Transactions

164 individual payment records from CMS Open Payments — Page 1 of 7

Date Company Product Nature Form Amount Type
12/23/2024 Medical Device Business Services, Inc. EMBOGUARD (Device) Consulting Fee Cash or cash equivalent $4,500.00 General
Category: Neurovascular
12/23/2024 Medical Device Business Services, Inc. EMBOGUARD (Device) Travel and Lodging Cash or cash equivalent $1,500.00 General
Category: Neurovascular
12/19/2024 DePuy Synthes Sales Inc. — Food and Beverage In-kind items and services $129.14 General
12/14/2024 Medical Device Business Services, Inc. — Travel and Lodging In-kind items and services $51.78 General
12/13/2024 Medical Device Business Services, Inc. — Travel and Lodging In-kind items and services $23.15 General
12/13/2024 Medical Device Business Services, Inc. — Food and Beverage In-kind items and services $18.50 General
12/13/2024 Medical Device Business Services, Inc. — Food and Beverage In-kind items and services $16.21 General
12/13/2024 Medical Device Business Services, Inc. — Food and Beverage In-kind items and services $11.81 General
12/12/2024 Medical Device Business Services, Inc. — Travel and Lodging In-kind items and services $356.13 General
12/12/2024 Medical Device Business Services, Inc. — Travel and Lodging In-kind items and services $318.60 General
12/12/2024 Medical Device Business Services, Inc. — Travel and Lodging In-kind items and services $197.59 General
12/12/2024 Medical Device Business Services, Inc. — Food and Beverage In-kind items and services $158.60 General
12/12/2024 Medical Device Business Services, Inc. — Travel and Lodging In-kind items and services $32.82 General
12/12/2024 Medical Device Business Services, Inc. — Food and Beverage In-kind items and services $30.10 General
11/14/2024 Smith+Nephew, Inc. PICO (Device) Food and Beverage In-kind items and services $136.73 General
Category: Negative Pressure Wound Therapy
11/08/2024 DePuy Synthes Sales Inc. TRUFILL (Device) Food and Beverage In-kind items and services $47.41 General
Category: Neurovascular
10/09/2024 Penumbra, Inc. Penumbra System (Device) Food and Beverage Cash or cash equivalent $137.07 General
Category: Neurointervention
10/03/2024 DePuy Synthes Sales Inc. EMBOTRAP (Device) Food and Beverage In-kind items and services $127.94 General
Category: Neurovascular
08/26/2024 Penumbra, Inc. Penumbra System (Device) Food and Beverage Cash or cash equivalent $84.06 General
Category: Neurointervention
07/16/2024 Penumbra, Inc. Penumbra System (Device) Food and Beverage Cash or cash equivalent $43.77 General
Category: Neurointervention
06/11/2024 Penumbra, Inc. RED 72 (Device) Food and Beverage Cash or cash equivalent $5.47 General
Category: Neurointervention
05/20/2024 Penumbra, Inc. Penumbra System (Device) Food and Beverage Cash or cash equivalent $135.64 General
Category: Neurointervention
03/25/2024 DePuy Synthes Sales Inc. CEREBASE (Device) Food and Beverage In-kind items and services $119.08 General
Category: Neurovascular
02/26/2024 Medtronic, Inc. SOLITAIRE X (Device) Food and Beverage In-kind items and services $14.16 General
Category: Stents
01/25/2024 Penumbra, Inc. RED 72 (Device) Food and Beverage Cash or cash equivalent $97.17 General
Category: Neurointervention
123…7»

Research Studies & Clinical Trials

Study Name Company Amount Records
ENRICH NICO Corporation $443.65 1

Medicare Billing by Year

Year Procedures Beneficiaries Services Submitted Medicare Paid
2023 13 456 513 $236,058 $54,685
2022 7 384 448 $147,845 $38,556
2021 9 358 416 $148,636 $37,741
2020 9 418 480 $456,369 $40,354
Total Patients
1,616
Total Services
1,857
Medicare Billing
$171,336
Procedure Codes
38

All Medicare Procedures & Services

38 procedure records from CMS Medicare Utilization — Page 1 of 2

HCPCS Description Setting Year Patients Services Charges Medicare Paid Ratio
99214 Established patient office or other outpatient visit, 30-39 minutes Office 2023 80 91 $33,906 $8,019 23.7%
61645 Removal of blood clot and injection to dissolve blood clot from head artery using fluoroscopic guidance Facility 2023 12 12 $29,784 $7,900 26.5%
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes Facility 2023 68 70 $27,016 $6,934 25.7%
99213 Established patient office or other outpatient visit, 20-29 minutes Office 2023 99 114 $30,100 $6,735 22.4%
99204 New patient office or other outpatient visit, 45-59 minutes Office 2023 44 44 $21,351 $4,713 22.1%
36224 Insertion of tube into internal neck artery for diagnosis or treatment with review by radiologist Facility 2023 12 12 $23,613 $4,695 19.9%
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes Facility 2023 41 65 $14,528 $4,037 27.8%
99215 Established patient office or other outpatient visit, 40-54 minutes Office 2023 27 29 $15,325 $3,240 21.1%
36226 Insertion of tube into brain artery for diagnosis or treatment with review by radiologist Facility 2023 13 14 $18,121 $2,899 16.0%
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes Facility 2023 18 18 $9,298 $2,452 26.4%
99205 New patient office or other outpatient visit, 60-74 minutes Office 2023 13 13 $8,447 $1,879 22.2%
99221 Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes Facility 2023 16 16 $3,953 $1,015 25.7%
76937 Ultrasonic guidance for blood vessel access Facility 2023 13 15 $616.00 $167.39 27.2%
99213 Established patient office or other outpatient visit, 20-29 minutes Office 2022 115 135 $35,029 $8,717 24.9%
99222 Initial hospital inpatient care per day, typically 50 minutes Facility 2022 76 81 $31,602 $8,587 27.2%
99214 Established patient office or other outpatient visit, 30-39 minutes Office 2022 71 81 $29,718 $7,640 25.7%
99204 New patient office or other outpatient visit, 45-59 minutes Office 2022 41 41 $19,639 $5,249 26.7%
99232 Follow-up hospital inpatient care per day, typically 25 minutes Facility 2022 43 71 $14,586 $3,977 27.3%
99215 Established patient office or other outpatient visit, 40-54 minutes Office 2022 21 22 $11,666 $3,029 26.0%
99203 New patient office or other outpatient visit, 30-44 minutes Office 2022 17 17 $5,605 $1,357 24.2%
99222 Initial hospital inpatient care, typically 50 minutes per day Facility 2021 90 95 $36,195 $10,037 27.7%
99213 Established patient outpatient visit, total time 20-29 minutes Office 2021 112 138 $36,018 $9,505 26.4%
36224 Insertion of catheter into internal carotid artery on one side of neck for diagnosis or treatment including radiological supervision and interpretation Facility 2021 15 15 $23,736 $5,492 23.1%
99214 Established patient outpatient visit, total time 30-39 minutes Office 2021 52 55 $20,350 $5,262 25.9%
99232 Subsequent hospital inpatient care, typically 25 minutes per day Facility 2021 36 58 $11,658 $3,144 27.0%
12»

About Dr. Richard Williamson, MD

Dr. Richard Williamson, MD is a Neurological Surgery healthcare provider based in Chandler, Arizona. This provider has been registered with the National Plan and Provider Enumeration System (NPPES) since 04/22/2008. The National Provider Identifier (NPI) number assigned to this provider is 1609040609.

According to the Centers for Medicare & Medicaid Services (CMS) Open Payments database, Dr. Richard Williamson, MD has received a total of $25,270 in payments from pharmaceutical and medical device companies, with $8,293 received in 2024. These payments were reported across 164 transactions from 23 companies. The most common payment nature is "Food and Beverage" ($10,006).

As a Medicare-enrolled provider, Williamson has provided services to 1,616 Medicare beneficiaries, totaling 1,857 services with total Medicare billing of $171,336. Data is available for 4 years (2020–2023), covering 38 distinct procedure/service records.

Practice Information

  • Specialty Neurological Surgery
  • Other Specialties Neurological Surgery
  • Location Chandler, AZ
  • Active Since 04/22/2008
  • Last Updated 05/08/2025
  • Taxonomy Code 207T00000X
  • Entity Type Individual
  • NPI Number 1609040609

Products in Payments

  • EMBOGUARD (Device) $6,000
  • Brightmatter Guide V (Device) $4,345
  • Penumbra System (Device) $3,245
  • CorPath GRX (Device) $639.95
  • NEURO (Device) $613.89
  • Pipeline (Device) $406.81
  • Trevo (Device) $406.46
  • SURPASS (Device) $358.89
  • TARGET (Device) $289.59
  • Penumbra SMART Coil (Device) $274.00
  • CorPath Imaging System (Device) $270.63
  • SOMATOM Force (Device) $260.14
  • UNIVERSAL NEURO 3 (Device) $256.22
  • PROGAV2 (Device) $247.37
  • N/A (Device) $236.99
  • Benchmark (Device) $236.59
  • Mobi-C (Device) $219.26
  • PIPELINE (Device) $209.52
  • Axium (Device) $206.64
  • Viz.AI LVO (Device) $197.63

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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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