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Dr. Anthony Paul Williamson, MD, PhD

Accepting New Patients
(Dr. Anthony Williamson, M.D.)
Specializes in: Neurology (Brain & Spinal Cord Disease)
University of Arkansas for Medical Sciences College of Medicine (1998)
Professional interests include: neurological disorders
2550 Broadway
Helena, MT 59601

Dr. Anthony Paul Williamson, MD, PhD is a neurologist in Helena, MT specializing in neurology (brain & spinal cord disease). He graduated from University of Arkansas for Medical Sciences College of Medicine in 1998 and has 28 years of experience. Dr. Anthony Paul Williamson, MD, PhD is affiliated with St. Peter's Health System and ST PETERS HEALTH.

View Doctor's Full Profile (406) 457-4180

Office Locations

St. Peter's Health System

2550 Broadway
Helena, MT 59601
(406) 457-4180
open_in_new

Noteworthy Medicare Patient Procedures Performed by Dr. Anthony Paul Williamson, MD, PhD in 2023

Click on any procedure below to see further details on volume and pricing among Medicare patients.

Top 25%

By Volume:

electroencephalography

In 2013, Dr. Anthony Paul Williamson, MD, PhD performed more electroencephalography (EEG) procedures for Medicare patients than 75% of providers in related specialties within Montana.

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Anthony Paul Williamson, MD, PhD treated as a neurologist in Helena, MT during 2013 were diagnostic procedures and electroencephalography (EEG).

Volume of procedures performed by Dr. Anthony Paul Williamson, MD, PhD for Medicare patients.

diagnostic procedures 122
doctor visit 832
electroencephalography (EEG) 19

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Anthony Paul Williamson, MD, PhD.

Gender
Male 122
Female 183
Ethnicity
Non-Hispanic White 288
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 87
From 75 to 84 107
85 and over 30
Less than 65 81

Conditions of Medicare patients treated by Dr. Anthony Paul Williamson, MD, PhD in 2013

The most common conditions of Medicare patients that Dr. Anthony Paul Williamson, MD, PhD treated during 2013 were hypertension, depression, high cholesterol and diabetes.

Hypertension 49
High Cholesterol 27
Stroke 10
Ischemic Heart Disease 25
Depression 43
Chronic Kidney Disease 17
Asthma 5
Osteoperosis 8
Atrial Fibrilation 10
Heart Failure 12
Chronic Obstructive Pulmonary Disease 15
Diabetes 26
Dementia 25
Cancer 10

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Anthony Paul Williamson, MD, PhD treated as a neurologist in Helena, MT during 2014 were diagnostic procedures and electroencephalography (EEG).

Volume of procedures performed by Dr. Anthony Paul Williamson, MD, PhD for Medicare patients.

diagnostic procedures 87
doctor visit 759
electroencephalography (EEG) 13

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Anthony Paul Williamson, MD, PhD.

Gender
Male 116
Female 195
Ethnicity
Non-Hispanic White 296
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 86
From 75 to 84 113
85 and over 30
Less than 65 82

Conditions of Medicare patients treated by Dr. Anthony Paul Williamson, MD, PhD in 2014

The most common conditions of Medicare patients that Dr. Anthony Paul Williamson, MD, PhD treated during 2014 were hypertension, depression, high cholesterol and ischemic heart disease.

Hypertension 51
High Cholesterol 29
Stroke 11
Ischemic Heart Disease 25
Depression 42
Chronic Kidney Disease 14
Asthma 5
Osteoperosis 8
Atrial Fibrilation 7
Heart Failure 12
Chronic Obstructive Pulmonary Disease 16
Diabetes 19
Dementia 23
Cancer 10

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Anthony Paul Williamson, MD, PhD treated as a neurologist in Helena, MT during 2015 were electroencephalography (EEG), diagnostic procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Anthony Paul Williamson, MD, PhD for Medicare patients.

diagnostic procedures 82
doctor visit 565
electroencephalography (EEG) 130
hospital care 26
inpatient care 26

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Anthony Paul Williamson, MD, PhD.

Gender
Male 280
Female 392
Ethnicity
Non-Hispanic White 638
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 234
From 75 to 84 158
85 and over 74
Less than 65 206

Conditions of Medicare patients treated by Dr. Anthony Paul Williamson, MD, PhD in 2015

The most common conditions of Medicare patients that Dr. Anthony Paul Williamson, MD, PhD treated during 2015 were hypertension, depression, high cholesterol and chronic obstructive pulmonary disease.

Hypertension 61
High Cholesterol 41
Stroke 16
Ischemic Heart Disease 26
Depression 48
Chronic Kidney Disease 23
Asthma 15
Osteoperosis 9
Atrial Fibrilation 12
Heart Failure 22
Chronic Obstructive Pulmonary Disease 27
Diabetes 25
Dementia 20
Cancer 8

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Anthony Paul Williamson, MD, PhD treated as a neurologist in Helena, MT during 2016 were electroencephalography (EEG), diagnostic procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Anthony Paul Williamson, MD, PhD for Medicare patients.

diagnostic procedures 68
doctor visit 606
electroencephalography (EEG) 164
hospital care 13
inpatient care 13

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Anthony Paul Williamson, MD, PhD.

Gender
Male 182
Female 256
Ethnicity
Non-Hispanic White 422
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 163
From 75 to 84 115
85 and over 50
Less than 65 110

Conditions of Medicare patients treated by Dr. Anthony Paul Williamson, MD, PhD in 2016

The most common conditions of Medicare patients that Dr. Anthony Paul Williamson, MD, PhD treated during 2016 were hypertension, depression, high cholesterol and chronic kidney disease.

Hypertension 58
High Cholesterol 37
Stroke 13
Ischemic Heart Disease 26
Depression 48
Chronic Kidney Disease 27
Asthma 26
Osteoperosis 9
Atrial Fibrilation 8
Heart Failure 19
Chronic Obstructive Pulmonary Disease 26
Diabetes 24
Dementia 24
Cancer 9

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Anthony Paul Williamson, MD, PhD treated as a neurologist in Helena, MT during 2017 were electroencephalography (EEG) and diagnostic procedures.

Volume of procedures performed by Dr. Anthony Paul Williamson, MD, PhD for Medicare patients.

diagnostic procedures 54
doctor visit 549
electroencephalography (EEG) 60

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Anthony Paul Williamson, MD, PhD.

Gender
Male 182
Female 220
Ethnicity
Non-Hispanic White 387
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 144
From 75 to 84 115
85 and over 34
Less than 65 109

Conditions of Medicare patients treated by Dr. Anthony Paul Williamson, MD, PhD in 2017

The most common conditions of Medicare patients that Dr. Anthony Paul Williamson, MD, PhD treated during 2017 were hypertension, depression, high cholesterol and ischemic heart disease.

Hypertension 52
High Cholesterol 32
Stroke 9
Ischemic Heart Disease 25
Depression 50
Chronic Kidney Disease 24
Asthma 4
Osteoperosis 8
Atrial Fibrilation 9
Heart Failure 15
Chronic Obstructive Pulmonary Disease 19
Diabetes 24
Dementia 24
Cancer 7

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Anthony Paul Williamson, MD, PhD treated as a neurologist in Helena, MT during 2018 were electroencephalography (EEG), diagnostic procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Anthony Paul Williamson, MD, PhD for Medicare patients.

diagnostic procedures 65
doctor visit 618
electroencephalography (EEG) 72
hospital care 11
inpatient care 11

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Anthony Paul Williamson, MD, PhD.

Gender
Male 195
Female 238
Ethnicity
Non-Hispanic White 410
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 176
From 75 to 84 107
85 and over 31
Less than 65 119

Conditions of Medicare patients treated by Dr. Anthony Paul Williamson, MD, PhD in 2018

The most common conditions of Medicare patients that Dr. Anthony Paul Williamson, MD, PhD treated during 2018 were hypertension, depression, high cholesterol and ischemic heart disease.

Hypertension 52
High Cholesterol 33
Stroke 11
Ischemic Heart Disease 23
Depression 45
Chronic Kidney Disease 22
Asthma 6
Osteoperosis 9
Atrial Fibrilation 8
Heart Failure 13
Chronic Obstructive Pulmonary Disease 18
Diabetes 0
Dementia 20
Cancer 4

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Anthony Paul Williamson, MD, PhD treated as a neurologist in Helena, MT during 2019 were electroencephalography (EEG) and diagnostic procedures.

Volume of procedures performed by Dr. Anthony Paul Williamson, MD, PhD for Medicare patients.

diagnostic procedures 25
doctor visit 474
electroencephalography (EEG) 35

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Anthony Paul Williamson, MD, PhD.

Gender
Male 174
Female 204
Ethnicity
Non-Hispanic White 357
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 146
From 75 to 84 115
85 and over 36
Less than 65 81

Conditions of Medicare patients treated by Dr. Anthony Paul Williamson, MD, PhD in 2019

The most common conditions of Medicare patients that Dr. Anthony Paul Williamson, MD, PhD treated during 2019 were hypertension, high cholesterol, depression and ischemic heart disease.

Hypertension 56
High Cholesterol 44
Stroke 9
Ischemic Heart Disease 24
Depression 41
Chronic Kidney Disease 23
Asthma 5
Osteoperosis 9
Atrial Fibrilation 7
Heart Failure 11
Chronic Obstructive Pulmonary Disease 13
Diabetes 21
Dementia 20
Cancer 6

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Anthony Paul Williamson, MD, PhD treated as a neurologist in Helena, MT during 2020 were diagnostic procedures and electroencephalography (EEG).

Volume of procedures performed by Dr. Anthony Paul Williamson, MD, PhD for Medicare patients.

diagnostic procedures 96
doctor visit 717
electroencephalography (EEG) 44

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Anthony Paul Williamson, MD, PhD.

Gender
Male 188
Female 224
Ethnicity
Non-Hispanic White 376
Black 17
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 178
From 75 to 84 164
85 and over 51
Less than 65 19

Conditions of Medicare patients treated by Dr. Anthony Paul Williamson, MD, PhD in 2020

The most common conditions of Medicare patients that Dr. Anthony Paul Williamson, MD, PhD treated during 2020 were hypertension, high cholesterol, ischemic heart disease and depression.

Hypertension 67
High Cholesterol 66
Stroke 15
Ischemic Heart Disease 30
Depression 26
Chronic Kidney Disease 24
Asthma 5
Osteoperosis 10
Atrial Fibrilation 12
Heart Failure 13
Chronic Obstructive Pulmonary Disease 8
Diabetes 19
Dementia 23
Cancer 11

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Anthony Paul Williamson, MD, PhD treated as a neurologist in Helena, MT during 2021 were diagnostic procedures and electroencephalography (EEG).

Volume of procedures performed by Dr. Anthony Paul Williamson, MD, PhD for Medicare patients.

diagnostic procedures 86
doctor visit 896
electroencephalography (EEG) 69

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Anthony Paul Williamson, MD, PhD.

Gender
Male 202
Female 230
Ethnicity
Non-Hispanic White 397
Black 15
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 165
From 75 to 84 192
85 and over 59
Less than 65 16

Conditions of Medicare patients treated by Dr. Anthony Paul Williamson, MD, PhD in 2021

The most common conditions of Medicare patients that Dr. Anthony Paul Williamson, MD, PhD treated during 2021 were high cholesterol, hypertension, ischemic heart disease and depression.

Hypertension 69
High Cholesterol 75
Stroke 17
Ischemic Heart Disease 35
Depression 29
Chronic Kidney Disease 26
Asthma 5
Osteoperosis 10
Atrial Fibrilation 13
Heart Failure 11
Chronic Obstructive Pulmonary Disease 8
Diabetes 20
Dementia 25
Cancer 12

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Anthony Paul Williamson, MD, PhD treated as a neurologist in Helena, MT during 2022 were diagnostic procedures and electroencephalography (EEG).

Volume of procedures performed by Dr. Anthony Paul Williamson, MD, PhD for Medicare patients.

diagnostic procedures 67
doctor visit 1055
electroencephalography (EEG) 63

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Anthony Paul Williamson, MD, PhD.

Gender
Male 229
Female 292
Ethnicity
Non-Hispanic White 484
Black 0
Hispanic 0
Asian 0
Other 16
Native American 0
Age
From 65 to 74 201
From 75 to 84 233
85 and over 70
Less than 65 17

Conditions of Medicare patients treated by Dr. Anthony Paul Williamson, MD, PhD in 2022

The most common conditions of Medicare patients that Dr. Anthony Paul Williamson, MD, PhD treated during 2022 were high cholesterol, hypertension, depression and ischemic heart disease.

Hypertension 75
High Cholesterol 75
Stroke 22
Ischemic Heart Disease 22
Depression 26
Chronic Kidney Disease 17
Asthma 7
Osteoperosis 16
Atrial Fibrilation 19
Heart Failure 7
Chronic Obstructive Pulmonary Disease 10
Diabetes 19
Dementia 16
Cancer 16

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Anthony Paul Williamson, MD, PhD treated as a neurologist in Helena, MT during 2023 were diagnostic procedures and electroencephalography (EEG).

Volume of procedures performed by Dr. Anthony Paul Williamson, MD, PhD for Medicare patients.

diagnostic procedures 77
doctor visit 1080
electroencephalography (EEG) 63

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Anthony Paul Williamson, MD, PhD.

Gender
Male 244
Female 275
Ethnicity
Non-Hispanic White 475
Black 18
Hispanic 0
Asian 0
Other 13
Native American 0
Age
From 65 to 74 183
From 75 to 84 242
85 and over 80
Less than 65 14

Conditions of Medicare patients treated by Dr. Anthony Paul Williamson, MD, PhD in 2023

The most common conditions of Medicare patients that Dr. Anthony Paul Williamson, MD, PhD treated during 2023 were high cholesterol, hypertension, depression and ischemic heart disease.

Hypertension 75
High Cholesterol 75
Stroke 23
Ischemic Heart Disease 23
Depression 29
Chronic Kidney Disease 20
Asthma 7
Osteoperosis 18
Atrial Fibrilation 18
Heart Failure 11
Chronic Obstructive Pulmonary Disease 11
Diabetes 21
Dementia 18
Cancer 18

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2013 - 2023

Volume of procedures performed by Dr. Anthony Paul Williamson, MD, PhD for Medicare patients.

The highest averages for the top procedures that Dr. Anthony Paul Williamson, MD, PhD treated as a neurologist in Helena, MT were diagnostic procedures, electroencephalography (EEG), hospital care and inpatient care.

diagnostic procedures 75
doctor visit 741
electroencephalography (EEG) 66
hospital care 16
inpatient care 16

Average Medicare Patient Data From 2013 - 2023

Information about Medicare patients treated by Dr. Anthony Paul Williamson, MD, PhD.

Gender
Male 192
Female 246
Ethnicity
Black / African American 4
Asian / Pacific Islander 0
Non-Hispanic White 411
Hispanic 0
Native American / Alaskan Native 0
Other 2
Age
75 to 84 151
85 and over 49
Less than 65 77
65 to 74 160

Average of Total of Conditions of Medicare patients treated by Dr. Anthony Paul Williamson, MD, PhD From 2013 - 2023

The highest averages of the most common conditions of Medicare patients that Dr. Anthony Paul Williamson, MD, PhD treated were hypertension, high cholesterol, depression and ischemic heart disease.

Hypertension 60
High Cholesterol 48
Stroke 14
Ischemic Heart Disease 25
Depression 38
Chronic Kidney Disease 21
Asthma 8
Osteoporosis 10
Heart Failure 13
Chronic Obstructive Pulmonary Disease 15
Diabetes 19
Atrial Fibrillation 11
Cancer 10
Dementia 21

Education & Training

Dr. Anthony Paul Williamson, MD, PhD graduated from University of Arkansas for Medical Sciences College of Medicine in 1998. He completed residency at University of Utah Affiliated Hospitals. He has a state license in Montana.

Medical School: University of Arkansas for Medical Sciences College of Medicine (1998)

Residency: University of Utah Affiliated Hospitals

Licensed In: Montana

Affiliations & Hospitals

Dr. Anthony Paul Williamson, MD, PhD is associated with these hospitals and organizations:

St. Peter's Health System
ST PETERS HEALTH

Ratings & Reviews

Dr. Anthony Paul Williamson, MD, PhD has an exceptional overall rating with an average of 5.0 out of 5 stars based on 50 ratings. We collect ratings and reviews of Dr. Anthony Paul Williamson, MD, PhD from all over the web to help you find the right in Helena, MT. 

5
Overall Rating
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General Payments

These charts describe general payments received by Dr. Anthony Paul Williamson, MD, PhD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

Payments by Company
Biogen, Inc. $440 TECFIDERA
$198 		TYSABRI
$102 		ZINBRYTA
$96 		PLEGRIDY
$44
Supernus Pharmaceuticals, Inc. $388 TROKENDI XR
$343
$45
GENZYME CORPORATION $236 LEMTRADA
$158 		AUBAGIO
$78
Lilly USA, LLC $206 BASAGLAR
$124 		TRULICITY
$82
Purdue Pharma L.P. $190 OXYCONTIN
$68 		INTERMEZZO
$67 		BUTRANS
$30 		HYSINGLA ER
$25
Other $1,472 Gilenya
$163 		NAMZARIC
$97 		QUDEXY XR Topiramate Extended Release Capsules
$71 		ELIQUIS
$67 		AMITIZA
$60 		Other
$1,015
Types of Payments
Food and Beverage $2,762
Education $131
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program $39

Biography

Dr. Anthony Williamson is a medical specialist in neurology (brain & spinal cord disease). In his practice, he is particularly interested in neurological disorders. Dr. Williamson is professionally affiliated with St. Peter's Health System. He studied medicine at the University of Arkansas for Medical Sciences College of Medicine. He trained at a hospital affiliated with the University of Utah for his residency. His average rating from his patients is 5.0 stars (out of 5). St. Peter's Health reports that Dr. Williamson is accepting new patients at his office in Helena, MT.

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