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Dr. John L. Kniaz, DO

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Specializes in: Adult Gastroenterology

16000 W 101st Avenue
Dyer, IN 46311

(219) 922-4900

Dr. John L. Kniaz, DO is a gastroenterologist in Dyer, IN specializing in adult gastroenterology.

Office Locations

16000 W 101st Avenue
Dyer, IN 46311

(219) 922-4900

(219) 836-9922

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9410 Calumet Avenue Suite 401
Munster, IN 46321

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Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. John L. Kniaz, DO treated as a gastroenterologist in Dyer, IN during 2012 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. John L. Kniaz, DO for Medicare patients.

anastomosis	32
catheterization	32
diagnostic procedures	418
doctor visit	857
gastrointestinal procedures	574
hospital care	712
inpatient care	712
lab tests	39
minimally invasive procedures	574
preventive care	143
removal of lesion (e.g. growth)	418

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. John L. Kniaz, DO treated as a gastroenterologist in Dyer, IN during 2013 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. John L. Kniaz, DO for Medicare patients.

anastomosis	28
catheterization	28
diagnostic procedures	402
doctor visit	924
gastrointestinal procedures	562
hospital care	691
injections	14
inpatient care	691
lab tests	54
minimally invasive procedures	562
preventive care	146
removal of lesion (e.g. growth)	402

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. John L. Kniaz, DO.

**Gender**
Male	433
Female	553

**Ethnicity**
Non-Hispanic White	808
Black	115
Hispanic	51
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	408
From 75 to 84	317
85 and over	153
Less than 65	108

Conditions of Medicare patients treated by Dr. John L. Kniaz, DO in 2013

Hypertension	75
High Cholesterol	70
Stroke	10
Ischemic Heart Disease	57
Depression	21
Chronic Kidney Disease	31
Asthma	11
Osteoperosis	9
Atrial Fibrilation	16
Heart Failure	37
Chronic Obstructive Pulmonary Disease	32
Diabetes	41
Dementia	16
Cancer	16

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. John L. Kniaz, DO treated as a gastroenterologist in Dyer, IN during 2014 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. John L. Kniaz, DO for Medicare patients.

anastomosis	30
catheterization	30
diagnostic procedures	410
doctor visit	941
gastrointestinal procedures	560
hospital care	764
inpatient care	722
lab tests	36
minimally invasive procedures	560
outpatient care	42
preventive care	127
removal of lesion (e.g. growth)	410

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. John L. Kniaz, DO.

**Gender**
Male	467
Female	530

**Ethnicity**
Non-Hispanic White	821
Black	108
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	408
From 75 to 84	296
85 and over	161
Less than 65	132

Conditions of Medicare patients treated by Dr. John L. Kniaz, DO in 2014

Hypertension	75
High Cholesterol	72
Stroke	11
Ischemic Heart Disease	55
Depression	23
Chronic Kidney Disease	36
Asthma	11
Osteoperosis	9
Atrial Fibrilation	18
Heart Failure	36
Chronic Obstructive Pulmonary Disease	30
Diabetes	41
Dementia	17
Cancer	18

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. John L. Kniaz, DO treated as a gastroenterologist in Dyer, IN during 2015 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. John L. Kniaz, DO for Medicare patients.

anastomosis	14
catheterization	14
diagnostic procedures	372
doctor visit	967
gastrointestinal procedures	510
hospital care	613
inpatient care	613
lab tests	26
minimally invasive procedures	510
preventive care	123
removal of lesion (e.g. growth)	372

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. John L. Kniaz, DO.

**Gender**
Male	840
Female	912

**Ethnicity**
Non-Hispanic White	1468
Black	142
Hispanic	114
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	796
From 75 to 84	522
85 and over	254
Less than 65	180

Conditions of Medicare patients treated by Dr. John L. Kniaz, DO in 2015

Hypertension	75
High Cholesterol	73
Stroke	11
Ischemic Heart Disease	53
Depression	23
Chronic Kidney Disease	35
Asthma	21
Osteoperosis	10
Atrial Fibrilation	17
Heart Failure	33
Chronic Obstructive Pulmonary Disease	30
Diabetes	37
Dementia	16
Cancer	14

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. John L. Kniaz, DO treated as a gastroenterologist in Dyer, IN during 2016 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. John L. Kniaz, DO for Medicare patients.

anastomosis	28
catheterization	28
diagnostic procedures	390
doctor visit	900
gastrointestinal procedures	533
hospital care	602
injections	11
inpatient care	573
lab tests	27
minimally invasive procedures	533
outpatient care	29
preventive care	95
removal of lesion (e.g. growth)	390

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. John L. Kniaz, DO.

**Gender**
Male	439
Female	475

**Ethnicity**
Non-Hispanic White	773
Black	75
Hispanic	52
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	401
From 75 to 84	274
85 and over	132
Less than 65	107

Conditions of Medicare patients treated by Dr. John L. Kniaz, DO in 2016

Hypertension	75
High Cholesterol	73
Stroke	13
Ischemic Heart Disease	56
Depression	23
Chronic Kidney Disease	40
Asthma	33
Osteoperosis	11
Atrial Fibrilation	18
Heart Failure	33
Chronic Obstructive Pulmonary Disease	30
Diabetes	38
Dementia	18
Cancer	17

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. John L. Kniaz, DO treated as a gastroenterologist in Dyer, IN during 2017 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. John L. Kniaz, DO for Medicare patients.

anastomosis	33
catheterization	33
diagnostic procedures	372
doctor visit	936
gastrointestinal procedures	525
hospital care	581
inpatient care	562
lab tests	52
minimally invasive procedures	525
outpatient care	19
preventive care	123
removal of lesion (e.g. growth)	372

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. John L. Kniaz, DO.

**Gender**
Male	385
Female	494

**Ethnicity**
Non-Hispanic White	753
Black	76
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	400
From 75 to 84	284
85 and over	114
Less than 65	81

Conditions of Medicare patients treated by Dr. John L. Kniaz, DO in 2017

Hypertension	75
High Cholesterol	66
Stroke	10
Ischemic Heart Disease	51
Depression	27
Chronic Kidney Disease	41
Asthma	10
Osteoperosis	12
Atrial Fibrilation	19
Heart Failure	32
Chronic Obstructive Pulmonary Disease	30
Diabetes	39
Dementia	17
Cancer	15

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. John L. Kniaz, DO treated as a gastroenterologist in Dyer, IN during 2018 were minimally invasive procedures, gastrointestinal procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. John L. Kniaz, DO for Medicare patients.

anastomosis	15
catheterization	15
diagnostic procedures	202
doctor visit	656
gastrointestinal procedures	285
hospital care	222
inpatient care	207
lab tests	34
minimally invasive procedures	285
outpatient care	15
preventive care	83
removal of lesion (e.g. growth)	202

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. John L. Kniaz, DO.

**Gender**
Male	281
Female	323

**Ethnicity**
Non-Hispanic White	506
Black	50
Hispanic	35
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	290
From 75 to 84	187
85 and over	65
Less than 65	62

Conditions of Medicare patients treated by Dr. John L. Kniaz, DO in 2018

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	50
Depression	24
Chronic Kidney Disease	37
Asthma	11
Osteoperosis	12
Atrial Fibrilation	18
Heart Failure	28
Chronic Obstructive Pulmonary Disease	30
Diabetes	39
Dementia	14
Cancer	15

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. John L. Kniaz, DO treated as a gastroenterologist in Dyer, IN during 2019 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. John L. Kniaz, DO for Medicare patients.

diagnostic procedures	248
doctor visit	595
gastrointestinal procedures	272
hospital care	30
inpatient care	30
minimally invasive procedures	272
preventive care	24
removal of lesion (e.g. growth)	248

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. John L. Kniaz, DO.

**Gender**
Male	188
Female	194

**Ethnicity**
Non-Hispanic White	336
Black	22
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	191
From 75 to 84	135
85 and over	26
Less than 65	30

Conditions of Medicare patients treated by Dr. John L. Kniaz, DO in 2019

Hypertension	75
High Cholesterol	75
Stroke	8
Ischemic Heart Disease	46
Depression	22
Chronic Kidney Disease	29
Asthma	6
Osteoperosis	10
Atrial Fibrilation	20
Heart Failure	21
Chronic Obstructive Pulmonary Disease	26
Diabetes	30
Dementia	8
Cancer	18

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. John L. Kniaz, DO treated as a gastroenterologist in Dyer, IN during 2020 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. John L. Kniaz, DO for Medicare patients.

diagnostic procedures	114
doctor visit	462
gastrointestinal procedures	131
minimally invasive procedures	131
preventive care	17
removal of lesion (e.g. growth)	114

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. John L. Kniaz, DO.

**Gender**
Male	160
Female	147

**Ethnicity**
Non-Hispanic White	265
Black	23
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	158
From 75 to 84	95
85 and over	27
Less than 65	27

Conditions of Medicare patients treated by Dr. John L. Kniaz, DO in 2020

Hypertension	75
High Cholesterol	72
Stroke	5
Ischemic Heart Disease	42
Depression	17
Chronic Kidney Disease	32
Asthma	7
Osteoperosis	10
Atrial Fibrilation	14
Heart Failure	18
Chronic Obstructive Pulmonary Disease	21
Diabetes	33
Dementia	7
Cancer	17

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. John L. Kniaz, DO treated as a gastroenterologist in Dyer, IN during 2021 were removal of lesion (e.g. growth), minimally invasive procedures, diagnostic procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. John L. Kniaz, DO for Medicare patients.

diagnostic procedures	65
doctor visit	337
gastrointestinal procedures	65
minimally invasive procedures	65
removal of lesion (e.g. growth)	65

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. John L. Kniaz, DO.

**Gender**
Male	114
Female	104

**Ethnicity**
Non-Hispanic White	196
Black	11
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	113
From 75 to 84	72
85 and over	19
Less than 65	14

Conditions of Medicare patients treated by Dr. John L. Kniaz, DO in 2021

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	47
Depression	22
Chronic Kidney Disease	33
Asthma	8
Osteoperosis	11
Atrial Fibrilation	17
Heart Failure	22
Chronic Obstructive Pulmonary Disease	25
Diabetes	31
Dementia	10
Cancer	14

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2021

Volume of procedures performed by Dr. John L. Kniaz, DO for Medicare patients.

The highest averages for the top procedures that Dr. John L. Kniaz, DO treated as a gastroenterologist in Dyer, IN were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

anastomosis	25
catheterization	25
diagnostic procedures	299
doctor visit	757
gastrointestinal procedures	401
hospital care	526
injections	12
inpatient care	513
lab tests	38
minimally invasive procedures	401
outpatient care	26
preventive care	97
removal of lesion (e.g. growth)	299

Average Medicare Patient Data From 2012 - 2021

Information about Medicare patients treated by Dr. John L. Kniaz, DO.

**Gender**
Male	330
Female	373

**Ethnicity**
Black / African American	62
Asian / Pacific Islander	0
Non-Hispanic White	592
Native American / Alaskan Native	0
Hispanic	25
Other	0

**Age**
75 to 84	218
85 and over	95
Less than 65	74
65 to 74	316

Average of Total of Conditions of Medicare patients treated by Dr. John L. Kniaz, DO From 2012 - 2021

The highest averages of the most common conditions of Medicare patients that Dr. John L. Kniaz, DO treated were hypertension, high cholesterol, ischemic heart disease and diabetes.

Hypertension	67
High Cholesterol	65
Stroke	8
Ischemic Heart Disease	45
Depression	20
Chronic Kidney Disease	31
Asthma	11
Osteoporosis	9
Heart Failure	26
Chronic Obstructive Pulmonary Disease	25
Diabetes	32
Atrial Fibrillation	15
Cancer	14
Dementia	12

Education & Training

He has a state license in Indiana.

Licensed In: Indiana

Ratings & Reviews

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General Payments

These charts describe general payments received by Dr. John L. Kniaz, DO. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
AbbVie, Inc.	$1,164 Humira $703	Creon $243	Mavyret $99	Moderiba $36	$83
Takeda Pharmaceuticals America, Inc.	$489 ENTYVIO $375	AMITIZA $114
Gilead Sciences Inc	$427 Epclusa $101	Sovaldi $13	$314
Janssen Biotech, Inc.	$412 STELARA $129	SIMPONI $115	SIMPONI ARIA $86	OLYSIO $71	REMICADE $11
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$318 XIFAXAN $100	PLENVU $79	Uceris $76	XIFAXANIBSD $38	Trulance $17	Other $7
Other	$2,744 OLYSIO $298	LINZESS $203	ENTYVIO $170	Cimzia $161	Humira $144	Other $1,769