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Dr. Benjamin Martin Callahan, MD

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Specializes in: Emergency Medicine

1221 S Broadway
Lexington, KY 40504

(859) 258-4000

Dr. Benjamin Martin Callahan, MD is an emergency medicine doctor in Louisville, KY specializing in emergency medicine.

Office Locations

1 Audubon Plaza Drive
Louisville, KY 40217

(502) 634-6767

(502) 634-6775

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1221 S Broadway
Lexington, KY 40504

(859) 258-4000

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Noteworthy Medicare Patient Procedures Performed by Dr. Benjamin Martin Callahan, MD in 2024

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

Top 10%

By Volume:

emergency room care

By Affordability:

emergency care

emergency room care

In 2024, among providers in related specialties within Kentucky, Dr. Benjamin Martin Callahan, MD performed more emergency room (ER) care procedures for Medicare patients than 90% of them and he also had a list price for emergency care, and emergency room (ER) care that was lower than the list prices billed to Medicare by 90% of them. Actual amounts paid by patients can vary widely depending on a number of factors, including insurance coverage. A lower list price, however, might mean lower fees when paying without insurance.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Benjamin Martin Callahan, MD treated as an emergency medicine doctor in Louisville, KY during 2012 were emergency care, X-rays and thoracic (chest) imaging.

Volume of procedures performed by Dr. Benjamin Martin Callahan, MD for Medicare patients.

emergency care	880
thoracic (chest) imaging	60
X-rays	60

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Benjamin Martin Callahan, MD treated as an emergency medicine doctor in Louisville, KY during 2013 were emergency care, X-rays, thoracic (chest) imaging and tracheal (windpipe) procedures.

Volume of procedures performed by Dr. Benjamin Martin Callahan, MD for Medicare patients.

emergency care	1060
thoracic (chest) imaging	46
tracheal (windpipe) procedures	12
X-rays	46

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Benjamin Martin Callahan, MD.

**Gender**
Male	436
Female	670

**Ethnicity**
Non-Hispanic White	872
Black	204
Hispanic	0
Asian	13
Other	0
Native American	0

**Age**
From 65 to 74	305
From 75 to 84	304
85 and over	190
Less than 65	307

Conditions of Medicare patients treated by Dr. Benjamin Martin Callahan, MD in 2013

Hypertension	75
High Cholesterol	61
Stroke	13
Ischemic Heart Disease	50
Depression	40
Chronic Kidney Disease	38
Asthma	16
Osteoperosis	10
Atrial Fibrilation	21
Heart Failure	37
Chronic Obstructive Pulmonary Disease	35
Diabetes	38
Dementia	23
Cancer	15

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Benjamin Martin Callahan, MD treated as an emergency medicine doctor in Louisville, KY during 2014 were emergency care, X-rays, thoracic (chest) imaging and tracheal (windpipe) procedures.

Volume of procedures performed by Dr. Benjamin Martin Callahan, MD for Medicare patients.

emergency care	1107
thoracic (chest) imaging	63
tracheal (windpipe) procedures	20
X-rays	63

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Benjamin Martin Callahan, MD.

**Gender**
Male	469
Female	667

**Ethnicity**
Non-Hispanic White	907
Black	207
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	292
From 75 to 84	279
85 and over	183
Less than 65	382

Conditions of Medicare patients treated by Dr. Benjamin Martin Callahan, MD in 2014

Hypertension	75
High Cholesterol	60
Stroke	11
Ischemic Heart Disease	50
Depression	43
Chronic Kidney Disease	39
Asthma	17
Osteoperosis	10
Atrial Fibrilation	20
Heart Failure	39
Chronic Obstructive Pulmonary Disease	37
Diabetes	41
Dementia	19
Cancer	12

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Benjamin Martin Callahan, MD treated as an emergency medicine doctor in Louisville, KY during 2015 were emergency care, X-rays, thoracic (chest) imaging and tracheal (windpipe) procedures.

Volume of procedures performed by Dr. Benjamin Martin Callahan, MD for Medicare patients.

emergency care	1094
thoracic (chest) imaging	48
tracheal (windpipe) procedures	12
X-rays	48

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Benjamin Martin Callahan, MD.

**Gender**
Male	896
Female	1400

**Ethnicity**
Non-Hispanic White	1860
Black	376
Hispanic	28
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	678
From 75 to 84	552
85 and over	398
Less than 65	668

Conditions of Medicare patients treated by Dr. Benjamin Martin Callahan, MD in 2015

Hypertension	75
High Cholesterol	63
Stroke	11
Ischemic Heart Disease	50
Depression	41
Chronic Kidney Disease	41
Asthma	30
Osteoperosis	10
Atrial Fibrilation	21
Heart Failure	39
Chronic Obstructive Pulmonary Disease	36
Diabetes	39
Dementia	20
Cancer	14

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Benjamin Martin Callahan, MD treated as an emergency medicine doctor in Louisville, KY during 2016 were emergency care, X-rays and thoracic (chest) imaging.

Volume of procedures performed by Dr. Benjamin Martin Callahan, MD for Medicare patients.

emergency care	1009
thoracic (chest) imaging	29
X-rays	29

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Benjamin Martin Callahan, MD.

**Gender**
Male	396
Female	629

**Ethnicity**
Non-Hispanic White	830
Black	173
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	324
From 75 to 84	274
85 and over	178
Less than 65	249

Conditions of Medicare patients treated by Dr. Benjamin Martin Callahan, MD in 2016

Hypertension	75
High Cholesterol	67
Stroke	11
Ischemic Heart Disease	53
Depression	45
Chronic Kidney Disease	49
Asthma	41
Osteoperosis	11
Atrial Fibrilation	25
Heart Failure	43
Chronic Obstructive Pulmonary Disease	36
Diabetes	42
Dementia	25
Cancer	12

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Benjamin Martin Callahan, MD treated as an emergency medicine doctor in Louisville, KY during 2017 were emergency care, X-rays, thoracic (chest) imaging and tracheal (windpipe) procedures.

Volume of procedures performed by Dr. Benjamin Martin Callahan, MD for Medicare patients.

emergency care	1041
thoracic (chest) imaging	34
tracheal (windpipe) procedures	13
X-rays	34

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Benjamin Martin Callahan, MD.

**Gender**
Male	439
Female	633

**Ethnicity**
Non-Hispanic White	848
Black	187
Hispanic	21
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	318
From 75 to 84	305
85 and over	195
Less than 65	254

Conditions of Medicare patients treated by Dr. Benjamin Martin Callahan, MD in 2017

Hypertension	75
High Cholesterol	66
Stroke	11
Ischemic Heart Disease	53
Depression	46
Chronic Kidney Disease	53
Asthma	15
Osteoperosis	13
Atrial Fibrilation	24
Heart Failure	41
Chronic Obstructive Pulmonary Disease	37
Diabetes	45
Dementia	24
Cancer	15

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Benjamin Martin Callahan, MD treated as an emergency medicine doctor in Louisville, KY during 2018 were emergency care and tracheal (windpipe) procedures.

Volume of procedures performed by Dr. Benjamin Martin Callahan, MD for Medicare patients.

emergency care	1036
tracheal (windpipe) procedures	14

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Benjamin Martin Callahan, MD.

**Gender**
Male	449
Female	638

**Ethnicity**
Non-Hispanic White	862
Black	188
Hispanic	15
Asian	0
Other	11
Native American	0

**Age**
From 65 to 74	340
From 75 to 84	308
85 and over	174
Less than 65	265

Conditions of Medicare patients treated by Dr. Benjamin Martin Callahan, MD in 2018

Hypertension	75
High Cholesterol	68
Stroke	11
Ischemic Heart Disease	49
Depression	45
Chronic Kidney Disease	52
Asthma	12
Osteoperosis	11
Atrial Fibrilation	22
Heart Failure	40
Chronic Obstructive Pulmonary Disease	33
Diabetes	40
Dementia	25
Cancer	14

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Benjamin Martin Callahan, MD treated as an emergency medicine doctor in Louisville, KY during 2019 were emergency care.

Volume of procedures performed by Dr. Benjamin Martin Callahan, MD for Medicare patients.

emergency care	1042

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Benjamin Martin Callahan, MD.

**Gender**
Male	471
Female	598

**Ethnicity**
Non-Hispanic White	867
Black	168
Hispanic	0
Asian	0
Other	18
Native American	0

**Age**
From 65 to 74	382
From 75 to 84	304
85 and over	182
Less than 65	201

Conditions of Medicare patients treated by Dr. Benjamin Martin Callahan, MD in 2019

Hypertension	75
High Cholesterol	74
Stroke	9
Ischemic Heart Disease	53
Depression	46
Chronic Kidney Disease	53
Asthma	13
Osteoperosis	12
Atrial Fibrilation	24
Heart Failure	43
Chronic Obstructive Pulmonary Disease	36
Diabetes	44
Dementia	26
Cancer	16

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Benjamin Martin Callahan, MD treated as an emergency medicine doctor in Louisville, KY during 2020 were emergency care and tracheal (windpipe) procedures.

Volume of procedures performed by Dr. Benjamin Martin Callahan, MD for Medicare patients.

emergency care	725
tracheal (windpipe) procedures	17

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Benjamin Martin Callahan, MD.

**Gender**
Male	348
Female	443

**Ethnicity**
Non-Hispanic White	638
Black	119
Hispanic	0
Asian	0
Other	19
Native American	0

**Age**
From 65 to 74	274
From 75 to 84	228
85 and over	134
Less than 65	155

Conditions of Medicare patients treated by Dr. Benjamin Martin Callahan, MD in 2020

Hypertension	75
High Cholesterol	72
Stroke	9
Ischemic Heart Disease	53
Depression	43
Chronic Kidney Disease	54
Asthma	11
Osteoperosis	10
Atrial Fibrilation	23
Heart Failure	44
Chronic Obstructive Pulmonary Disease	32
Diabetes	40
Dementia	24
Cancer	16

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Benjamin Martin Callahan, MD treated as an emergency medicine doctor in Louisville, KY during 2021 were emergency care.

Volume of procedures performed by Dr. Benjamin Martin Callahan, MD for Medicare patients.

emergency care	824

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Benjamin Martin Callahan, MD.

**Gender**
Male	407
Female	469

**Ethnicity**
Non-Hispanic White	738
Black	98
Hispanic	0
Asian	0
Other	17
Native American	0

**Age**
From 65 to 74	275
From 75 to 84	276
85 and over	179
Less than 65	146

Conditions of Medicare patients treated by Dr. Benjamin Martin Callahan, MD in 2021

Hypertension	75
High Cholesterol	74
Stroke	11
Ischemic Heart Disease	55
Depression	39
Chronic Kidney Disease	55
Asthma	10
Osteoperosis	13
Atrial Fibrilation	24
Heart Failure	42
Chronic Obstructive Pulmonary Disease	29
Diabetes	39
Dementia	27
Cancer	15

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Benjamin Martin Callahan, MD treated as an emergency medicine doctor in Louisville, KY during 2022 were emergency care.

Volume of procedures performed by Dr. Benjamin Martin Callahan, MD for Medicare patients.

emergency care	710

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Benjamin Martin Callahan, MD.

**Gender**
Male	341
Female	415

**Ethnicity**
Non-Hispanic White	637
Black	87
Hispanic	0
Asian	0
Other	15
Native American	0

**Age**
From 65 to 74	277
From 75 to 84	228
85 and over	159
Less than 65	92

Conditions of Medicare patients treated by Dr. Benjamin Martin Callahan, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	18
Ischemic Heart Disease	45
Depression	42
Chronic Kidney Disease	40
Asthma	14
Osteoperosis	16
Atrial Fibrilation	35
Heart Failure	36
Chronic Obstructive Pulmonary Disease	33
Diabetes	40
Dementia	24
Cancer	21

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Benjamin Martin Callahan, MD treated as an emergency medicine doctor in Louisville, KY during 2023 were emergency care.

Volume of procedures performed by Dr. Benjamin Martin Callahan, MD for Medicare patients.

emergency care	529

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Benjamin Martin Callahan, MD.

**Gender**
Male	255
Female	292

**Ethnicity**
Non-Hispanic White	461
Black	60
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	170
From 75 to 84	177
85 and over	115
Less than 65	85

Conditions of Medicare patients treated by Dr. Benjamin Martin Callahan, MD in 2023

Hypertension	75
High Cholesterol	75
Stroke	15
Ischemic Heart Disease	45
Depression	41
Chronic Kidney Disease	37
Asthma	15
Osteoperosis	14
Atrial Fibrilation	32
Heart Failure	37
Chronic Obstructive Pulmonary Disease	35
Diabetes	42
Dementia	18
Cancer	18

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. Benjamin Martin Callahan, MD treated as an emergency medicine doctor in Louisville, KY during 2024 were emergency care.

Volume of procedures performed by Dr. Benjamin Martin Callahan, MD for Medicare patients.

emergency care	549

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Benjamin Martin Callahan, MD.

**Gender**
Male	234
Female	312

**Ethnicity**
Non-Hispanic White	479
Black	44
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	169
From 75 to 84	188
85 and over	107
Less than 65	82

Conditions of Medicare patients treated by Dr. Benjamin Martin Callahan, MD in 2024

Hypertension	75
High Cholesterol	75
Stroke	15
Ischemic Heart Disease	38
Depression	37
Chronic Kidney Disease	41
Asthma	13
Osteoperosis	14
Atrial Fibrilation	29
Heart Failure	34
Chronic Obstructive Pulmonary Disease	32
Diabetes	41
Dementia	19
Cancer	20

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. Benjamin Martin Callahan, MD for Medicare patients.

The highest averages for the top procedures that Dr. Benjamin Martin Callahan, MD treated as an emergency medicine doctor in Louisville, KY were emergency care, X-rays, thoracic (chest) imaging and tracheal (windpipe) procedures.

emergency care	892
thoracic (chest) imaging	46
tracheal (windpipe) procedures	14
X-rays	46

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Benjamin Martin Callahan, MD.

**Gender**
Female	551
Male	395

**Ethnicity**
Black / African American	147
Asian / Pacific Islander	1
Non-Hispanic White	769
Hispanic	4
Native American / Alaskan Native	0
Other	6

**Age**
85 and over	168
75 to 84	263
Less than 65	222
65 to 74	292

Average of Total of Conditions of Medicare patients treated by Dr. Benjamin Martin Callahan, MD From 2012 - 2024

The highest averages of the most common conditions of Medicare patients that Dr. Benjamin Martin Callahan, MD treated were hypertension, high cholesterol, ischemic heart disease and chronic kidney disease.

Hypertension	69
High Cholesterol	63
Stroke	11
Ischemic Heart Disease	45
Depression	39
Chronic Kidney Disease	42
Asthma	15
Osteoporosis	11
Heart Failure	36
Chronic Obstructive Pulmonary Disease	31
Diabetes	37
Atrial Fibrillation	23
Cancer	14
Dementia	21

Education & Training

He has a state license in Kentucky.

Licensed In: Kentucky

Ratings & Reviews

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General Payments

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

**Payments by Company**
Janssen Pharmaceuticals, Inc	$32 XARELTO $32
Medtronic Vascular, Inc.	$27 Thrombectomy $27

**Types of Payments**
Food and Beverage	$59

Biography

Dr. Benjamin Callahan, who practices in Louisville, KY and Lexington, KY, is a medical specialist in emergency medicine. Dr. Callahan has obtained a license to practice in Kentucky.

Select Year:

Dr. Benjamin Martin Callahan, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Benjamin Martin Callahan, MD in 2024

By Volume:

By Affordability:

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

2013 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Benjamin Martin Callahan, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Benjamin Martin Callahan, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Benjamin Martin Callahan, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Benjamin Martin Callahan, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Benjamin Martin Callahan, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Benjamin Martin Callahan, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Benjamin Martin Callahan, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Benjamin Martin Callahan, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Benjamin Martin Callahan, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Benjamin Martin Callahan, MD in 2022

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

2023 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Benjamin Martin Callahan, MD in 2023

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

2024 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Benjamin Martin Callahan, MD in 2024

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Average Medicare Patient Data From 2012 - 2024

Average of Total of Conditions of Medicare patients treated by Dr. Benjamin Martin Callahan, MD From 2012 - 2024

Education & Training

Ratings & Reviews

General Payments

Biography

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