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Dr. Robert John Callahan II, MD

(No ratings)

Specializes in: Emergency Medicine
University of California, Davis, School of Medicine
1046 6th Avenue Sw
Albany, OR 97321

Dr. Robert John Callahan II, MD is an emergency medicine doctor in LEBANON, OR specializing in emergency medicine. He graduated from University of California, Davis, School of Medicine. Dr. Robert John Callahan II, MD is affiliated with Samaritan Health System.

View Doctor's Full Profile (541) 812-4000

Office Locations

525 NORTH SANTIAM HIGHWAY
LEBANON, OR 97355
open_in_new

Samaritan Health System

1046 6th Avenue Sw
Albany, OR 97321
(541) 812-4000
(541) 812-4126
open_in_new

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Robert John Callahan II, MD treated as an emergency medicine doctor in LEBANON, OR during 2012 were emergency care.

Volume of procedures performed by Dr. Robert John Callahan II, MD for Medicare patients.

emergency care 489

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Robert John Callahan II, MD treated as an emergency medicine doctor in LEBANON, OR during 2013 were emergency care.

Volume of procedures performed by Dr. Robert John Callahan II, MD for Medicare patients.

emergency care 493

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert John Callahan II, MD.

Gender
Male 244
Female 260
Ethnicity
Non-Hispanic White 473
Black 0
Hispanic 15
Asian 0
Other 0
Native American 0
Age
From 65 to 74 153
From 75 to 84 96
85 and over 111
Less than 65 144

Conditions of Medicare patients treated by Dr. Robert John Callahan II, MD in 2013

Hypertension 67
High Cholesterol 44
Stroke 10
Ischemic Heart Disease 35
Depression 39
Chronic Kidney Disease 35
Asthma 11
Osteoperosis 13
Atrial Fibrilation 17
Heart Failure 29
Chronic Obstructive Pulmonary Disease 23
Diabetes 30
Dementia 24
Cancer 14

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Robert John Callahan II, MD treated as an emergency medicine doctor in LEBANON, OR during 2014 were emergency care.

Volume of procedures performed by Dr. Robert John Callahan II, MD for Medicare patients.

emergency care 490

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert John Callahan II, MD.

Gender
Male 211
Female 272
Ethnicity
Non-Hispanic White 448
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 130
From 75 to 84 110
85 and over 105
Less than 65 138

Conditions of Medicare patients treated by Dr. Robert John Callahan II, MD in 2014

Hypertension 69
High Cholesterol 45
Stroke 11
Ischemic Heart Disease 33
Depression 42
Chronic Kidney Disease 36
Asthma 13
Osteoperosis 10
Atrial Fibrilation 18
Heart Failure 35
Chronic Obstructive Pulmonary Disease 24
Diabetes 28
Dementia 25
Cancer 12

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Robert John Callahan II, MD treated as an emergency medicine doctor in LEBANON, OR during 2015 were emergency care.

Volume of procedures performed by Dr. Robert John Callahan II, MD for Medicare patients.

emergency care 501

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert John Callahan II, MD.

Gender
Male 472
Female 530
Ethnicity
Non-Hispanic White 934
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 288
From 75 to 84 214
85 and over 246
Less than 65 254

Conditions of Medicare patients treated by Dr. Robert John Callahan II, MD in 2015

Hypertension 70
High Cholesterol 48
Stroke 11
Ischemic Heart Disease 37
Depression 39
Chronic Kidney Disease 44
Asthma 16
Osteoperosis 11
Atrial Fibrilation 16
Heart Failure 30
Chronic Obstructive Pulmonary Disease 21
Diabetes 33
Dementia 27
Cancer 12

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Robert John Callahan II, MD treated as an emergency medicine doctor in LEBANON, OR during 2016 were emergency care.

Volume of procedures performed by Dr. Robert John Callahan II, MD for Medicare patients.

emergency care 480

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert John Callahan II, MD.

Gender
Male 224
Female 261
Ethnicity
Non-Hispanic White 448
Black 0
Hispanic 16
Asian 0
Other 0
Native American 0
Age
From 65 to 74 155
From 75 to 84 115
85 and over 89
Less than 65 126

Conditions of Medicare patients treated by Dr. Robert John Callahan II, MD in 2016

Hypertension 72
High Cholesterol 47
Stroke 7
Ischemic Heart Disease 36
Depression 39
Chronic Kidney Disease 41
Asthma 30
Osteoperosis 10
Atrial Fibrilation 19
Heart Failure 31
Chronic Obstructive Pulmonary Disease 25
Diabetes 30
Dementia 22
Cancer 14

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Robert John Callahan II, MD treated as an emergency medicine doctor in LEBANON, OR during 2017 were emergency care.

Volume of procedures performed by Dr. Robert John Callahan II, MD for Medicare patients.

emergency care 381

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert John Callahan II, MD.

Gender
Male 167
Female 228
Ethnicity
Non-Hispanic White 371
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 128
From 75 to 84 87
85 and over 75
Less than 65 105

Conditions of Medicare patients treated by Dr. Robert John Callahan II, MD in 2017

Hypertension 70
High Cholesterol 41
Stroke 11
Ischemic Heart Disease 36
Depression 40
Chronic Kidney Disease 45
Asthma 11
Osteoperosis 10
Atrial Fibrilation 20
Heart Failure 34
Chronic Obstructive Pulmonary Disease 27
Diabetes 30
Dementia 24
Cancer 12

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Robert John Callahan II, MD treated as an emergency medicine doctor in LEBANON, OR during 2018 were emergency care.

Volume of procedures performed by Dr. Robert John Callahan II, MD for Medicare patients.

emergency care 396

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert John Callahan II, MD.

Gender
Male 210
Female 201
Ethnicity
Non-Hispanic White 387
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 124
From 75 to 84 104
85 and over 80
Less than 65 103

Conditions of Medicare patients treated by Dr. Robert John Callahan II, MD in 2018

Hypertension 73
High Cholesterol 46
Stroke 9
Ischemic Heart Disease 39
Depression 42
Chronic Kidney Disease 49
Asthma 15
Osteoperosis 9
Atrial Fibrilation 22
Heart Failure 34
Chronic Obstructive Pulmonary Disease 27
Diabetes 36
Dementia 27
Cancer 9

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Robert John Callahan II, MD treated as an emergency medicine doctor in LEBANON, OR during 2019 were emergency care.

Volume of procedures performed by Dr. Robert John Callahan II, MD for Medicare patients.

emergency care 465

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert John Callahan II, MD.

Gender
Male 245
Female 218
Ethnicity
Non-Hispanic White 419
Black 0
Hispanic 18
Asian 0
Other 0
Native American 0
Age
From 65 to 74 144
From 75 to 84 124
85 and over 59
Less than 65 136

Conditions of Medicare patients treated by Dr. Robert John Callahan II, MD in 2019

Hypertension 70
High Cholesterol 49
Stroke 10
Ischemic Heart Disease 35
Depression 42
Chronic Kidney Disease 48
Asthma 15
Osteoperosis 9
Atrial Fibrilation 17
Heart Failure 34
Chronic Obstructive Pulmonary Disease 22
Diabetes 35
Dementia 24
Cancer 12

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Robert John Callahan II, MD treated as an emergency medicine doctor in LEBANON, OR during 2020 were emergency care.

Volume of procedures performed by Dr. Robert John Callahan II, MD for Medicare patients.

emergency care 314

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert John Callahan II, MD.

Gender
Male 184
Female 156
Ethnicity
Non-Hispanic White 306
Black 0
Hispanic 12
Asian 0
Other 0
Native American 0
Age
From 65 to 74 117
From 75 to 84 88
85 and over 47
Less than 65 88

Conditions of Medicare patients treated by Dr. Robert John Callahan II, MD in 2020

Hypertension 74
High Cholesterol 53
Stroke 9
Ischemic Heart Disease 42
Depression 43
Chronic Kidney Disease 51
Asthma 15
Osteoperosis 9
Atrial Fibrilation 18
Heart Failure 38
Chronic Obstructive Pulmonary Disease 24
Diabetes 35
Dementia 23
Cancer 11

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Robert John Callahan II, MD treated as an emergency medicine doctor in LEBANON, OR during 2021 were emergency care.

Volume of procedures performed by Dr. Robert John Callahan II, MD for Medicare patients.

emergency care 370

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert John Callahan II, MD.

Gender
Male 186
Female 204
Ethnicity
Non-Hispanic White 353
Black 0
Hispanic 0
Asian 0
Other 14
Native American 0
Age
From 65 to 74 144
From 75 to 84 95
85 and over 61
Less than 65 90

Conditions of Medicare patients treated by Dr. Robert John Callahan II, MD in 2021

Hypertension 72
High Cholesterol 54
Stroke 8
Ischemic Heart Disease 41
Depression 39
Chronic Kidney Disease 47
Asthma 15
Osteoperosis 11
Atrial Fibrilation 17
Heart Failure 32
Chronic Obstructive Pulmonary Disease 20
Diabetes 31
Dementia 20
Cancer 11

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Robert John Callahan II, MD treated as an emergency medicine doctor in LEBANON, OR during 2022 were emergency care, outpatient care and hospital care.

Volume of procedures performed by Dr. Robert John Callahan II, MD for Medicare patients.

emergency care 298
hospital care 11
outpatient care 11

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert John Callahan II, MD.

Gender
Male 150
Female 171
Ethnicity
Non-Hispanic White 297
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 94
From 75 to 84 100
85 and over 44
Less than 65 83

Conditions of Medicare patients treated by Dr. Robert John Callahan II, MD in 2022

Hypertension 74
High Cholesterol 62
Stroke 14
Ischemic Heart Disease 27
Depression 40
Chronic Kidney Disease 32
Asthma 13
Osteoperosis 15
Atrial Fibrilation 30
Heart Failure 28
Chronic Obstructive Pulmonary Disease 26
Diabetes 31
Dementia 13
Cancer 16

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Robert John Callahan II, MD for Medicare patients.

The highest averages for the top procedures that Dr. Robert John Callahan II, MD treated as an emergency medicine doctor in LEBANON, OR were emergency care, hospital care and outpatient care.

emergency care 425
hospital care 11
outpatient care 11

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Robert John Callahan II, MD.

Gender
Male 208
Female 227
Ethnicity
Black / African American 0
Asian / Pacific Islander 0
Non-Hispanic White 403
Native American / Alaskan Native 0
Hispanic 5
Other 1
Age
75 to 84 103
85 and over 83
Less than 65 115
65 to 74 134

Average of Total of Conditions of Medicare patients treated by Dr. Robert John Callahan II, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Robert John Callahan II, MD treated were hypertension, high cholesterol, chronic kidney disease and depression.

Hypertension 64
High Cholesterol 44
Stroke 9
Ischemic Heart Disease 32
Depression 36
Chronic Kidney Disease 38
Asthma 14
Osteoporosis 9
Heart Failure 29
Chronic Obstructive Pulmonary Disease 21
Diabetes 29
Atrial Fibrillation 17
Dementia 20
Cancer 11

Education & Training

Dr. Robert John Callahan II, MD graduated from University of California, Davis, School of Medicine. He completed residency at University of Arizona Affiliated Hospitals. He is certified by the Board Certification: Emergency Medicine and has a state license in Oregon.

Medical School: University of California, Davis, School of Medicine

Residency: University of Arizona Affiliated Hospitals

Board Certification: Board Certification: Emergency Medicine

Licensed In: Oregon

Affiliations & Hospitals

Dr. Robert John Callahan II, MD is associated with these hospitals and organizations:

Samaritan Health System

Ratings & Reviews

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General Payments

These charts describe general payments received by Dr. Robert John Callahan II, MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

Payments by Company
Allergan Inc. $18 BYSTOLIC
$18
Types of Payments
Food and Beverage $18

Biography

Dr. Robert Callahan is a medical specialist in emergency medicine. He is affiliated with Samaritan Health System. Doctor.com reports that he is not accepting new patients. After attending the University of California, Davis, School of Medicine, Dr. Callahan completed his residency training at a hospital affiliated with the University of Arizona.

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