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Dr. Walter A. Koltun, MD

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Specializes in: Colon & Rectal Surgery

Harvard Medical School (1981)

Professional interests include: inflammatory bowel disease, diverticular disease, colorectal cancer

200 Campus Drive Entrance 4
Hershey, PA 17033

1-800-243-1455

Dr. Walter A. Koltun, MD is a colon and rectal surgeon in Hershey, PA specializing in colon & rectal surgery. He graduated from Harvard Medical School in 1981 and has 45 years of experience. Dr. Walter A. Koltun, MD is affiliated with Penn State Health.

Office Locations

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200 Campus Drive Entrance 4
Hershey, PA 17033

500 University Drive
Hershey, PA 17033

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In The News

“Dr. Walter Koltun compared results in 20 patients undergoing colon surgery, some with a general anesthesia and others an epidural anesthetic.”—"DOCTOR SUGGESTS 'OUT COLD' MAY NOT BE BEST ANESTHETIC", Orlando Sentinel, June 1996

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Walter A. Koltun, MD treated as a colon and rectal surgeon in Hershey, PA during 2012 were minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Walter A. Koltun, MD for Medicare patients.

doctor visit	65
gastrointestinal procedures	23
minimally invasive procedures	23

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Walter A. Koltun, MD treated as a colon and rectal surgeon in Hershey, PA during 2013 were minimally invasive procedures, hospital care, inpatient care and gastrointestinal procedures.

Volume of procedures performed by Dr. Walter A. Koltun, MD for Medicare patients.

doctor visit	87
gastrointestinal procedures	27
hospital care	27
inpatient care	27
minimally invasive procedures	27

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Walter A. Koltun, MD.

**Gender**
Male	46
Female	55

**Age**
From 65 to 74	44
From 75 to 84	24
85 and over	12
Less than 65	21

Conditions of Medicare patients treated by Dr. Walter A. Koltun, MD in 2013

Hypertension	65
High Cholesterol	53
Stroke	0
Ischemic Heart Disease	33
Depression	25
Chronic Kidney Disease	29
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	17
Chronic Obstructive Pulmonary Disease	12
Diabetes	24
Dementia	0
Cancer	45

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Walter A. Koltun, MD treated as a colon and rectal surgeon in Hershey, PA during 2014 were minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Walter A. Koltun, MD for Medicare patients.

doctor visit	63
gastrointestinal procedures	12
minimally invasive procedures	12

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Walter A. Koltun, MD.

**Gender**
Male	42
Female	45

**Age**
From 65 to 74	39
From 75 to 84	30
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Walter A. Koltun, MD in 2014

Hypertension	57
High Cholesterol	53
Stroke	0
Ischemic Heart Disease	31
Depression	20
Chronic Kidney Disease	25
Asthma	0
Osteoperosis	0
Atrial Fibrilation	15
Heart Failure	13
Chronic Obstructive Pulmonary Disease	14
Diabetes	26
Dementia	0
Cancer	38

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

Volume of procedures performed by Dr. Walter A. Koltun, MD for Medicare patients.

doctor visit	63

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Walter A. Koltun, MD.

**Gender**
Male	76
Female	90

**Age**
From 65 to 74	60
From 75 to 84	60
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Walter A. Koltun, MD in 2015

Hypertension	54
High Cholesterol	60
Stroke	0
Ischemic Heart Disease	24
Depression	30
Chronic Kidney Disease	31
Asthma	17
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	25
Dementia	0
Cancer	40

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Walter A. Koltun, MD treated as a colon and rectal surgeon in Hershey, PA during 2016 were hospital care and inpatient care.

Volume of procedures performed by Dr. Walter A. Koltun, MD for Medicare patients.

doctor visit	62
hospital care	34
inpatient care	34

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Walter A. Koltun, MD.

**Gender**
Male	54
Female	46

**Age**
From 65 to 74	42
From 75 to 84	29
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Walter A. Koltun, MD in 2016

Hypertension	67
High Cholesterol	49
Stroke	0
Ischemic Heart Disease	36
Depression	30
Chronic Kidney Disease	39
Asthma	20
Osteoperosis	0
Atrial Fibrilation	14
Heart Failure	15
Chronic Obstructive Pulmonary Disease	13
Diabetes	22
Dementia	0
Cancer	39

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Walter A. Koltun, MD treated as a colon and rectal surgeon in Hershey, PA during 2017 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Walter A. Koltun, MD for Medicare patients.

doctor visit	65
gastrointestinal procedures	12
hospital care	53
inpatient care	53
minimally invasive procedures	12

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Walter A. Koltun, MD.

**Gender**
Male	57
Female	47

**Age**
From 65 to 74	50
From 75 to 84	30
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Walter A. Koltun, MD in 2017

Hypertension	70
High Cholesterol	60
Stroke	0
Ischemic Heart Disease	39
Depression	20
Chronic Kidney Disease	39
Asthma	16
Osteoperosis	0
Atrial Fibrilation	14
Heart Failure	19
Chronic Obstructive Pulmonary Disease	15
Diabetes	33
Dementia	0
Cancer	42

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Walter A. Koltun, MD treated as a colon and rectal surgeon in Hershey, PA during 2018 were minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Walter A. Koltun, MD for Medicare patients.

doctor visit	60
gastrointestinal procedures	15
minimally invasive procedures	15

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Walter A. Koltun, MD.

**Gender**
Male	49
Female	52

**Age**
From 65 to 74	51
From 75 to 84	27
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Walter A. Koltun, MD in 2018

Hypertension	71
High Cholesterol	59
Stroke	0
Ischemic Heart Disease	35
Depression	22
Chronic Kidney Disease	39
Asthma	13
Osteoperosis	13
Atrial Fibrilation	14
Heart Failure	14
Chronic Obstructive Pulmonary Disease	22
Diabetes	30
Dementia	0
Cancer	50

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Walter A. Koltun, MD treated as a colon and rectal surgeon in Hershey, PA during 2019 were minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Walter A. Koltun, MD for Medicare patients.

doctor visit	37
gastrointestinal procedures	19
minimally invasive procedures	19

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Walter A. Koltun, MD.

**Gender**
Male	44
Female	30

**Age**
From 65 to 74	40
From 75 to 84	17
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Walter A. Koltun, MD in 2019

Hypertension	70
High Cholesterol	55
Stroke	0
Ischemic Heart Disease	34
Depression	26
Chronic Kidney Disease	35
Asthma	0
Osteoperosis	15
Atrial Fibrilation	16
Heart Failure	18
Chronic Obstructive Pulmonary Disease	0
Diabetes	30
Dementia	0
Cancer	46

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

Volume of procedures performed by Dr. Walter A. Koltun, MD for Medicare patients.

doctor visit	24

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Walter A. Koltun, MD.

**Gender**
Male	38
Female	34

**Age**
From 65 to 74	37
From 75 to 84	0
85 and over	0
Less than 65	16

Conditions of Medicare patients treated by Dr. Walter A. Koltun, MD in 2020

Hypertension	69
High Cholesterol	53
Stroke	0
Ischemic Heart Disease	28
Depression	33
Chronic Kidney Disease	36
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	26
Dementia	0
Cancer	38

Medicare Procedure and Patient Information

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Walter A. Koltun, MD.

**Gender**
Male	29
Female	18

**Age**
From 65 to 74	25
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Walter A. Koltun, MD in 2021

Hypertension	70
High Cholesterol	51
Stroke	0
Ischemic Heart Disease	32
Depression	32
Chronic Kidney Disease	51
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	34
Dementia	0
Cancer	38

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

Volume of procedures performed by Dr. Walter A. Koltun, MD for Medicare patients.

doctor visit	13

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Walter A. Koltun, MD.

**Gender**
Male	23
Female	19

**Age**
From 65 to 74	21
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Walter A. Koltun, MD in 2022

Hypertension	71
High Cholesterol	71
Stroke	0
Ischemic Heart Disease	0
Depression	36
Chronic Kidney Disease	26
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	29
Dementia	0
Cancer	29

Medicare Procedure and Patient Information

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Walter A. Koltun, MD.

**Gender**
Male	17
Female	13

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

Conditions of Medicare patients treated by Dr. Walter A. Koltun, MD in 2023

Hypertension	70
High Cholesterol	57
Stroke	0
Ischemic Heart Disease	0
Depression	0
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Volume of procedures performed by Dr. Walter A. Koltun, MD for Medicare patients.

The highest averages for the top procedures that Dr. Walter A. Koltun, MD treated as a colon and rectal surgeon in Hershey, PA were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

doctor visit	53
gastrointestinal procedures	18
hospital care	38
inpatient care	38
minimally invasive procedures	18

Average Medicare Patient Data From 2012 - 2023

Information about Medicare patients treated by Dr. Walter A. Koltun, MD.

**Gender**
Female	37
Male	39

**Age**
85 and over	1
75 to 84	18
Less than 65	3
65 to 74	35

Average of Total of Conditions of Medicare patients treated by Dr. Walter A. Koltun, MD From 2012 - 2023

The highest averages of the most common conditions of Medicare patients that Dr. Walter A. Koltun, MD treated were hypertension, high cholesterol, cancer and chronic kidney disease.

Hypertension	61
High Cholesterol	51
Stroke	0
Ischemic Heart Disease	24
Depression	22
Chronic Kidney Disease	29
Asthma	5
Osteoporosis	2
Heart Failure	8
Chronic Obstructive Pulmonary Disease	6
Diabetes	23
Atrial Fibrillation	6
Dementia	0
Cancer	33

Education & Training

Dr. Walter A. Koltun, MD graduated from Harvard Medical School in 1981. He completed residency at Brigham and Women's Hospital. He has a state license in Pennsylvania.

Medical School: Harvard Medical School (1981)

Residency: Brigham and Women's Hospital (1989)

Licensed In: Pennsylvania

Affiliations & Hospitals

Dr. Walter A. Koltun, MD is associated with these hospitals and organizations:

Penn State Health

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General Payments

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

**Payments by Company**
Intuitive Surgical, Inc.	$4,669 Da Vinci Surgical System $4,669
Takeda Pharmaceuticals U.S.A., Inc.	$2,309 ENTYVIO $121	$2,188
Astora Women's Health LLC	$777 $777
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$750 Uceris $750
Janssen Biotech, Inc.	$519 REMICADE $266	SIMPONI $110	STELARA $80	$64
Other	$655 Humira $119	Solesta $112	ENTYVIO $104	STRATAFIX $86	Echelon; Endopath $14	Other $220

**Types of Payments**
Travel and Lodging	$4,729
Consulting Fee	$2,188
Food and Beverage	$1,913
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$750
Education	$100

Research Payments

Dr. Walter A. Koltun, MD has received 5 research payments totaling $1,420.

Biography

Dr. Walter Koltun is a specialist in colon & rectal surgery. His education and training includes medical school at Harvard Medical School and residency at Brigham and Women's Hospital. In Dr. Koltun's practice, he is particularly interested in colorectal surgery procedures, diverticular disease, and inflammatory bowel disease. On average, patients gave him a rating of 5.0 stars (out of 5). Distinctions awarded to Dr. Koltun include: Best Doctor for Colon and Rectal Surgery and Castle-Connelly Top Doctor, 2011 Outstanding Mentor, Penn State College of Medicine Class of 2008. He is professionally affiliated with Penn State Health.