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Home > IN Providers > Gynecologic Oncologists

Dr. Michael James Callahan, MD

(Dr. Michael Callahan, MD)

(415 Ratings)

Specializes in: Gynecologic Oncology

Indiana University School of Medicine

8301 Harcourt Road
Indianapolis, IN 46260

(317) 415-6740

Dr. Michael James Callahan, MD is a gynecologic oncologist in Indianapolis, IN specializing in gynecologic oncology. He graduated from Indiana University School of Medicine. Dr. Michael James Callahan, MD is affiliated with Ascension St. Vincent Carmel, Ascension, ST VINCENT PHYSICIAN SERVICES HOSPITAL AND HEALTH CARE CENTER and Ascension St. Vincent Hospital - Indianapolis.

Office Locations

8301 Harcourt Road
Indianapolis, IN 46260

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8402 Harcourt Road Suite 420
Indianapolis, IN 46260

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Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Michael James Callahan, MD treated as a gynecologic oncologist in Indianapolis, IN during 2013 were hospital care, inpatient care, gynecologic procedures and open surgery.

Volume of procedures performed by Dr. Michael James Callahan, MD for Medicare patients.

cancer surgery	17
doctor visit	370
gynecologic procedures	28
hospital care	54
inpatient care	54
open surgery	17

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael James Callahan, MD.

**Gender**
Male	0
Female	248

**Ethnicity**
Non-Hispanic White	227
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	116
From 75 to 84	66
85 and over	19
Less than 65	47

Conditions of Medicare patients treated by Dr. Michael James Callahan, MD in 2013

The most common conditions of Medicare patients that Dr. Michael James Callahan, MD treated during 2013 were hypertension, high cholesterol, diabetes and ischemic heart disease.

Hypertension	69
High Cholesterol	55
Stroke	0
Ischemic Heart Disease	31
Depression	25
Chronic Kidney Disease	26
Asthma	7
Osteoperosis	8
Atrial Fibrilation	8
Heart Failure	16
Chronic Obstructive Pulmonary Disease	12
Diabetes	32
Dementia	5
Cancer	17

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Michael James Callahan, MD treated as a gynecologic oncologist in Indianapolis, IN during 2014 were hospital care, inpatient care, gynecologic procedures and open surgery.

Volume of procedures performed by Dr. Michael James Callahan, MD for Medicare patients.

cancer surgery	25
diagnostic procedures	11
doctor visit	387
excision	11
gynecologic procedures	51
hospital care	69
inpatient care	69
minimally invasive procedures	11
open surgery	25
removal of lesion (e.g. growth)	11

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael James Callahan, MD.

**Gender**
Male	0
Female	315

**Ethnicity**
Non-Hispanic White	289
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	146
From 75 to 84	95
85 and over	23
Less than 65	51

Conditions of Medicare patients treated by Dr. Michael James Callahan, MD in 2014

The most common conditions of Medicare patients that Dr. Michael James Callahan, MD treated during 2014 were hypertension, high cholesterol, diabetes and depression.

Hypertension	69
High Cholesterol	53
Stroke	0
Ischemic Heart Disease	26
Depression	32
Chronic Kidney Disease	24
Asthma	10
Osteoperosis	10
Atrial Fibrilation	7
Heart Failure	11
Chronic Obstructive Pulmonary Disease	14
Diabetes	34
Dementia	5
Cancer	13

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Michael James Callahan, MD treated as a gynecologic oncologist in Indianapolis, IN during 2015 were gynecologic procedures, hospital care, inpatient care and open surgery.

Volume of procedures performed by Dr. Michael James Callahan, MD for Medicare patients.

cancer surgery	33
diagnostic procedures	16
doctor visit	460
excision	16
gynecologic procedures	71
hospital care	63
inpatient care	63
minimally invasive procedures	16
open surgery	33
removal of lesion (e.g. growth)	16

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael James Callahan, MD.

**Ethnicity**
Non-Hispanic White	674
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	328
From 75 to 84	214
85 and over	62
Less than 65	116

Conditions of Medicare patients treated by Dr. Michael James Callahan, MD in 2015

The most common conditions of Medicare patients that Dr. Michael James Callahan, MD treated during 2015 were hypertension, high cholesterol, diabetes and chronic kidney disease.

Hypertension	72
High Cholesterol	51
Stroke	4
Ischemic Heart Disease	26
Depression	30
Chronic Kidney Disease	31
Asthma	13
Osteoperosis	12
Atrial Fibrilation	11
Heart Failure	14
Chronic Obstructive Pulmonary Disease	14
Diabetes	32
Dementia	5
Cancer	17

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Michael James Callahan, MD treated as a gynecologic oncologist in Indianapolis, IN during 2016 were gynecologic procedures, open surgery and cancer surgery.

Volume of procedures performed by Dr. Michael James Callahan, MD for Medicare patients.

cancer surgery	29
doctor visit	480
gynecologic procedures	60
open surgery	29

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael James Callahan, MD.

**Ethnicity**
Non-Hispanic White	369
Black	17
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	210
From 75 to 84	109
85 and over	21
Less than 65	58

Conditions of Medicare patients treated by Dr. Michael James Callahan, MD in 2016

The most common conditions of Medicare patients that Dr. Michael James Callahan, MD treated during 2016 were hypertension, high cholesterol, chronic kidney disease and diabetes.

Hypertension	74
High Cholesterol	53
Stroke	3
Ischemic Heart Disease	28
Depression	27
Chronic Kidney Disease	35
Asthma	22
Osteoperosis	8
Atrial Fibrilation	9
Heart Failure	15
Chronic Obstructive Pulmonary Disease	17
Diabetes	31
Dementia	8
Cancer	12

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Michael James Callahan, MD treated as a gynecologic oncologist in Indianapolis, IN during 2017 were hospital care, inpatient care, gynecologic procedures and open surgery.

Volume of procedures performed by Dr. Michael James Callahan, MD for Medicare patients.

cancer surgery	19
doctor visit	372
gynecologic procedures	30
hospital care	67
inpatient care	67
open surgery	19
vulvectomy	13

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael James Callahan, MD.

**Ethnicity**
Non-Hispanic White	288
Black	15
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	163
From 75 to 84	95
85 and over	16
Less than 65	44

Conditions of Medicare patients treated by Dr. Michael James Callahan, MD in 2017

The most common conditions of Medicare patients that Dr. Michael James Callahan, MD treated during 2017 were hypertension, high cholesterol, chronic kidney disease and diabetes.

Hypertension	73
High Cholesterol	49
Stroke	0
Ischemic Heart Disease	32
Depression	30
Chronic Kidney Disease	41
Asthma	9
Osteoperosis	12
Atrial Fibrilation	10
Heart Failure	16
Chronic Obstructive Pulmonary Disease	16
Diabetes	35
Dementia	7
Cancer	12

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Michael James Callahan, MD treated as a gynecologic oncologist in Indianapolis, IN during 2018 were hospital care, inpatient care and gynecologic procedures.

Volume of procedures performed by Dr. Michael James Callahan, MD for Medicare patients.

doctor visit	333
gynecologic procedures	15
hospital care	134
inpatient care	134

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael James Callahan, MD.

**Ethnicity**
Non-Hispanic White	270
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	147
From 75 to 84	87
85 and over	20
Less than 65	34

Conditions of Medicare patients treated by Dr. Michael James Callahan, MD in 2018

The most common conditions of Medicare patients that Dr. Michael James Callahan, MD treated during 2018 were hypertension, high cholesterol, chronic kidney disease and depression.

Hypertension	75
High Cholesterol	54
Stroke	0
Ischemic Heart Disease	32
Depression	35
Chronic Kidney Disease	41
Asthma	8
Osteoperosis	9
Atrial Fibrilation	10
Heart Failure	22
Chronic Obstructive Pulmonary Disease	17
Diabetes	33
Dementia	8
Cancer	13

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Michael James Callahan, MD treated as a gynecologic oncologist in Indianapolis, IN during 2019 were hospital care, inpatient care, open surgery and cancer surgery.

Volume of procedures performed by Dr. Michael James Callahan, MD for Medicare patients.

cancer surgery	15
doctor visit	324
gynecologic procedures	15
hospital care	101
inpatient care	101
open surgery	15

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael James Callahan, MD.

**Gender**
Male	0
Female	283

**Ethnicity**
Non-Hispanic White	259
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	135
From 75 to 84	95
85 and over	19
Less than 65	0

Conditions of Medicare patients treated by Dr. Michael James Callahan, MD in 2019

The most common conditions of Medicare patients that Dr. Michael James Callahan, MD treated during 2019 were hypertension, high cholesterol, chronic kidney disease and depression.

Hypertension	75
High Cholesterol	59
Stroke	5
Ischemic Heart Disease	35
Depression	38
Chronic Kidney Disease	45
Asthma	11
Osteoperosis	11
Atrial Fibrilation	14
Heart Failure	19
Chronic Obstructive Pulmonary Disease	18
Diabetes	36
Dementia	9
Cancer	12

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Michael James Callahan, MD treated as a gynecologic oncologist in Indianapolis, IN during 2020 were hospital care and inpatient care.

Volume of procedures performed by Dr. Michael James Callahan, MD for Medicare patients.

doctor visit	148
hospital care	59
inpatient care	59

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael James Callahan, MD.

**Gender**
Male	0
Female	138

**Ethnicity**
Non-Hispanic White	126
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	81
From 75 to 84	34
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Michael James Callahan, MD in 2020

The most common conditions of Medicare patients that Dr. Michael James Callahan, MD treated during 2020 were hypertension, high cholesterol, chronic kidney disease and depression.

Hypertension	59
High Cholesterol	57
Stroke	0
Ischemic Heart Disease	26
Depression	32
Chronic Kidney Disease	34
Asthma	10
Osteoperosis	14
Atrial Fibrilation	0
Heart Failure	11
Chronic Obstructive Pulmonary Disease	20
Diabetes	23
Dementia	11
Cancer	12

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Michael James Callahan, MD treated as a gynecologic oncologist in Indianapolis, IN during 2021 were hospital care and inpatient care.

Volume of procedures performed by Dr. Michael James Callahan, MD for Medicare patients.

doctor visit	151
hospital care	18
inpatient care	18

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael James Callahan, MD.

**Gender**
Male	0
Female	123

**Age**
From 65 to 74	63
From 75 to 84	34
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Michael James Callahan, MD in 2021

The most common conditions of Medicare patients that Dr. Michael James Callahan, MD treated during 2021 were hypertension, high cholesterol, chronic kidney disease and depression.

Hypertension	72
High Cholesterol	66
Stroke	0
Ischemic Heart Disease	28
Depression	37
Chronic Kidney Disease	40
Asthma	0
Osteoperosis	15
Atrial Fibrilation	0
Heart Failure	12
Chronic Obstructive Pulmonary Disease	17
Diabetes	30
Dementia	10
Cancer	13

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Michael James Callahan, MD treated as a gynecologic oncologist in Indianapolis, IN during 2022 were hospital care and inpatient care.

Volume of procedures performed by Dr. Michael James Callahan, MD for Medicare patients.

doctor visit	152
hospital care	82
inpatient care	82

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael James Callahan, MD.

**Gender**
Male	0
Female	125

**Age**
From 65 to 74	56
From 75 to 84	39
85 and over	13
Less than 65	17

Conditions of Medicare patients treated by Dr. Michael James Callahan, MD in 2022

The most common conditions of Medicare patients that Dr. Michael James Callahan, MD treated during 2022 were high cholesterol, hypertension, cancer and depression.

Hypertension	70
High Cholesterol	74
Stroke	0
Ischemic Heart Disease	25
Depression	34
Chronic Kidney Disease	28
Asthma	0
Osteoperosis	17
Atrial Fibrilation	18
Heart Failure	14
Chronic Obstructive Pulmonary Disease	13
Diabetes	26
Dementia	0
Cancer	35

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

Volume of procedures performed by Dr. Michael James Callahan, MD for Medicare patients.

doctor visit	150

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael James Callahan, MD.

**Gender**
Male	0
Female	117

**Age**
From 65 to 74	60
From 75 to 84	29
85 and over	14
Less than 65	14

Conditions of Medicare patients treated by Dr. Michael James Callahan, MD in 2023

The most common conditions of Medicare patients that Dr. Michael James Callahan, MD treated during 2023 were hypertension, high cholesterol, cancer and depression.

Hypertension	65
High Cholesterol	64
Stroke	0
Ischemic Heart Disease	23
Depression	32
Chronic Kidney Disease	26
Asthma	0
Osteoperosis	21
Atrial Fibrilation	16
Heart Failure	15
Chronic Obstructive Pulmonary Disease	14
Diabetes	21
Dementia	0
Cancer	33

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2013 - 2023

Volume of procedures performed by Dr. Michael James Callahan, MD for Medicare patients.

The highest averages for the top procedures that Dr. Michael James Callahan, MD treated as a gynecologic oncologist in Indianapolis, IN were hospital care, inpatient care, gynecologic procedures and open surgery.

cancer surgery	23
diagnostic procedures	13
doctor visit	302
excision	13
gynecologic procedures	38
hospital care	71
inpatient care	71
minimally invasive procedures	13
open surgery	23
removal of lesion (e.g. growth)	13
vulvectomy	13

Average Medicare Patient Data From 2013 - 2023

Information about Medicare patients treated by Dr. Michael James Callahan, MD.

**Gender**
Female	122
Male	0

**Ethnicity**
Black / African American	2
Asian / Pacific Islander	0
Non-Hispanic White	227
Hispanic	0
Native American / Alaskan Native	0
Other	0

**Age**
85 and over	18
75 to 84	81
Less than 65	34
65 to 74	136

Average of Total of Conditions of Medicare patients treated by Dr. Michael James Callahan, MD From 2013 - 2023

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

Hypertension	70
High Cholesterol	57
Stroke	1
Ischemic Heart Disease	28
Depression	32
Chronic Kidney Disease	33
Asthma	8
Osteoporosis	12
Heart Failure	15
Chronic Obstructive Pulmonary Disease	15
Diabetes	30
Atrial Fibrillation	9
Dementia	6
Cancer	17

Education & Training

Dr. Michael James Callahan, MD graduated from Indiana University School of Medicine. He completed residency at St. Vincent Indianapolis Hospital. He is certified by the The American Board of Obstetrics and Gynecology - Gynecologic Oncology The American Board of Obstetrics and Gynecology - Obstetrics and Gynecology and has a state license in Indiana.

Medical School: Indiana University School of Medicine

Residency: St. Vincent Indianapolis Hospital

Board Certification: The American Board of Obstetrics and Gynecology - Gynecologic Oncology The American Board of Obstetrics and Gynecology - Obstetrics and Gynecology

Licensed In: Indiana

Affiliations & Hospitals

Dr. Michael James Callahan, MD is associated with these hospitals and organizations:

Ascension St. Vincent Carmel

Ascension

ST VINCENT PHYSICIAN SERVICES HOSPITAL AND HEALTH CARE CENTER

Ascension St. Vincent Hospital - Indianapolis

Ratings & Reviews

Dr. Michael James Callahan, MD has an exceptional overall rating with an average of 5.0 out of 5 stars based on 415 ratings. We collect ratings and reviews of Dr. Michael James Callahan, MD from all over the web to help you find the right in Indianapolis, IN.

Overall Rating

(415 Ratings)

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General Payments

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

**Payments by Company**
TESARO, Inc.	$164 ZEJULA $164
AstraZeneca Pharmaceuticals LP	$146 LYNPARZA $124	FASLODEX $22
Merck Sharp & Dohme Corporation	$67 LYNPARZA $67
EISAI INC.	$25 Lenvima $25
GlaxoSmithKline, LLC.	$20 $20
Other	$150 Biosurgicals $19	Avastin $18	Santyl $17	Pico $17	ENTRE $16	Other $63

**Types of Payments**
Food and Beverage	$572

Research Payments

Dr. Michael James Callahan, MD has received 101 research payments totaling $1,420,303.

Biography

Dr. Michael Callahan's medical specialty is gynecologic oncology. His average rating from his patients is 5.0 stars (out of 5). Dr. Callahan is professionally affiliated with Ascension St. Vincent Carmel. He attended Indiana University School of Medicine and then went on to complete his residency at St. Vincent Indianapolis Hospital and Saint Vincent Catholic Medical Centers.

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Dr. Michael James Callahan, MD

Office Locations

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

2013 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Michael James Callahan, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Michael James Callahan, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Michael James Callahan, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Michael James Callahan, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Michael James Callahan, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Michael James Callahan, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Michael James Callahan, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Michael James Callahan, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Michael James Callahan, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Michael James Callahan, MD in 2022

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

2023 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Michael James Callahan, MD in 2023

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2013 - 2023

Average Medicare Patient Data From 2013 - 2023

Average of Total of Conditions of Medicare patients treated by Dr. Michael James Callahan, MD From 2013 - 2023

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Research Payments

Biography

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