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Dr. Walter Lawrence Groff, MD

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Specializes in: Colon & Rectal Surgery

Professional interests include: colorectal surgery procedures

33 Overlook Road Suite 412
Summit, NJ 07901

(909) 598-0220

Dr. Walter Lawrence Groff, MD is a colon and rectal surgeon in Summit, NJ specializing in colon & rectal surgery.

Office Locations

33 Overlook Road Suite 412
Summit, NJ 07901

(909) 598-0220

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Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Walter Lawrence Groff, MD treated as a colon and rectal surgeon in Summit, NJ during 2012 were gastrointestinal procedures, minimally invasive procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Walter Lawrence Groff, MD for Medicare patients.

anorectal procedures	11
diagnostic procedures	164
doctor visit	423
excision	11
gastrointestinal procedures	413
minimally invasive procedures	356
preventive care	83
removal of lesion (e.g. growth)	164

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Walter Lawrence Groff, MD treated as a colon and rectal surgeon in Summit, NJ during 2013 were gastrointestinal procedures, minimally invasive procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Walter Lawrence Groff, MD for Medicare patients.

diagnostic procedures	186
doctor visit	372
gastrointestinal procedures	405
minimally invasive procedures	359
preventive care	83
removal of lesion (e.g. growth)	186

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Walter Lawrence Groff, MD.

**Gender**
Male	227
Female	224

**Ethnicity**
Non-Hispanic White	399
Black	21
Hispanic	16
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	233
From 75 to 84	158
85 and over	45
Less than 65	15

Conditions of Medicare patients treated by Dr. Walter Lawrence Groff, MD in 2013

Hypertension	67
High Cholesterol	66
Stroke	4
Ischemic Heart Disease	33
Depression	9
Chronic Kidney Disease	10
Asthma	7
Osteoperosis	7
Atrial Fibrilation	10
Heart Failure	11
Chronic Obstructive Pulmonary Disease	8
Diabetes	25
Dementia	3
Cancer	23

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Walter Lawrence Groff, MD treated as a colon and rectal surgeon in Summit, NJ during 2014 were gastrointestinal procedures, minimally invasive procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Walter Lawrence Groff, MD for Medicare patients.

diagnostic procedures	168
doctor visit	372
gastrointestinal procedures	354
minimally invasive procedures	319
preventive care	62
removal of lesion (e.g. growth)	168

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Walter Lawrence Groff, MD.

**Gender**
Male	207
Female	197

**Ethnicity**
Non-Hispanic White	352
Black	27
Hispanic	0
Asian	0
Other	11
Native American	0

**Age**
From 65 to 74	224
From 75 to 84	127
85 and over	35
Less than 65	18

Conditions of Medicare patients treated by Dr. Walter Lawrence Groff, MD in 2014

Hypertension	58
High Cholesterol	67
Stroke	3
Ischemic Heart Disease	33
Depression	12
Chronic Kidney Disease	14
Asthma	8
Osteoperosis	10
Atrial Fibrilation	13
Heart Failure	11
Chronic Obstructive Pulmonary Disease	5
Diabetes	24
Dementia	3
Cancer	22

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Walter Lawrence Groff, MD treated as a colon and rectal surgeon in Summit, NJ during 2015 were gastrointestinal procedures, minimally invasive procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Walter Lawrence Groff, MD for Medicare patients.

diagnostic procedures	171
doctor visit	325
gastrointestinal procedures	363
minimally invasive procedures	333
preventive care	71
removal of lesion (e.g. growth)	171

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Walter Lawrence Groff, MD.

**Gender**
Male	392
Female	388

**Ethnicity**
Non-Hispanic White	660
Black	58
Hispanic	26
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	406
From 75 to 84	262
85 and over	86
Less than 65	26

Conditions of Medicare patients treated by Dr. Walter Lawrence Groff, MD in 2015

Hypertension	58
High Cholesterol	61
Stroke	3
Ischemic Heart Disease	29
Depression	12
Chronic Kidney Disease	13
Asthma	7
Osteoperosis	10
Atrial Fibrilation	11
Heart Failure	11
Chronic Obstructive Pulmonary Disease	5
Diabetes	25
Dementia	6
Cancer	17

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Walter Lawrence Groff, MD treated as a colon and rectal surgeon in Summit, NJ during 2016 were gastrointestinal procedures, minimally invasive procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Walter Lawrence Groff, MD for Medicare patients.

diagnostic procedures	136
doctor visit	279
gastrointestinal procedures	295
minimally invasive procedures	270
preventive care	75
removal of lesion (e.g. growth)	136

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Walter Lawrence Groff, MD.

**Gender**
Male	178
Female	166

**Ethnicity**
Non-Hispanic White	297
Black	20
Hispanic	0
Asian	0
Other	13
Native American	0

**Age**
From 65 to 74	179
From 75 to 84	132
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Walter Lawrence Groff, MD in 2016

Hypertension	62
High Cholesterol	63
Stroke	3
Ischemic Heart Disease	31
Depression	13
Chronic Kidney Disease	19
Asthma	12
Osteoperosis	8
Atrial Fibrilation	11
Heart Failure	12
Chronic Obstructive Pulmonary Disease	9
Diabetes	23
Dementia	3
Cancer	19

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Walter Lawrence Groff, MD treated as a colon and rectal surgeon in Summit, NJ during 2017 were gastrointestinal procedures, minimally invasive procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Walter Lawrence Groff, MD for Medicare patients.

diagnostic procedures	145
doctor visit	246
gastrointestinal procedures	264
minimally invasive procedures	237
preventive care	32
removal of lesion (e.g. growth)	145

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Walter Lawrence Groff, MD.

**Gender**
Male	149
Female	145

**Ethnicity**
Non-Hispanic White	258
Black	14
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	136
From 75 to 84	108
85 and over	38
Less than 65	12

Conditions of Medicare patients treated by Dr. Walter Lawrence Groff, MD in 2017

Hypertension	63
High Cholesterol	54
Stroke	0
Ischemic Heart Disease	30
Depression	15
Chronic Kidney Disease	20
Asthma	4
Osteoperosis	11
Atrial Fibrilation	11
Heart Failure	9
Chronic Obstructive Pulmonary Disease	6
Diabetes	23
Dementia	7
Cancer	16

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Walter Lawrence Groff, MD treated as a colon and rectal surgeon in Summit, NJ during 2018 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Walter Lawrence Groff, MD for Medicare patients.

diagnostic procedures	123
doctor visit	215
gastrointestinal procedures	204
minimally invasive procedures	204
preventive care	47
removal of lesion (e.g. growth)	123

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Walter Lawrence Groff, MD.

**Gender**
Male	128
Female	129

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

**Age**
From 65 to 74	134
From 75 to 84	91
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Walter Lawrence Groff, MD in 2018

Hypertension	63
High Cholesterol	60
Stroke	5
Ischemic Heart Disease	29
Depression	12
Chronic Kidney Disease	22
Asthma	7
Osteoperosis	11
Atrial Fibrilation	11
Heart Failure	11
Chronic Obstructive Pulmonary Disease	9
Diabetes	26
Dementia	5
Cancer	18

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Walter Lawrence Groff, MD treated as a colon and rectal surgeon in Summit, NJ during 2019 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Walter Lawrence Groff, MD for Medicare patients.

diagnostic procedures	93
doctor visit	163
gastrointestinal procedures	148
minimally invasive procedures	148
preventive care	26
removal of lesion (e.g. growth)	93

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Walter Lawrence Groff, MD.

**Gender**
Male	111
Female	87

**Ethnicity**
Non-Hispanic White	175
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	115
From 75 to 84	57
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Walter Lawrence Groff, MD in 2019

Hypertension	62
High Cholesterol	65
Stroke	8
Ischemic Heart Disease	25
Depression	17
Chronic Kidney Disease	20
Asthma	7
Osteoperosis	13
Atrial Fibrilation	10
Heart Failure	10
Chronic Obstructive Pulmonary Disease	0
Diabetes	20
Dementia	0
Cancer	18

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

Volume of procedures performed by Dr. Walter Lawrence Groff, MD for Medicare patients.

doctor visit	17

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Walter Lawrence Groff, MD.

**Gender**
Male	28
Female	13

**Age**
From 65 to 74	22
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Walter Lawrence Groff, MD in 2020

Hypertension	73
High Cholesterol	66
Stroke	0
Ischemic Heart Disease	37
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 - 2020

Volume of procedures performed by Dr. Walter Lawrence Groff, MD for Medicare patients.

The highest averages for the top procedures that Dr. Walter Lawrence Groff, MD treated as a colon and rectal surgeon in Summit, NJ were gastrointestinal procedures, minimally invasive procedures, removal of lesion (e.g. growth) and diagnostic procedures.

anorectal procedures	11
diagnostic procedures	148
doctor visit	268
excision	11
gastrointestinal procedures	305
minimally invasive procedures	278
preventive care	59
removal of lesion (e.g. growth)	148

Average Medicare Patient Data From 2012 - 2020

Information about Medicare patients treated by Dr. Walter Lawrence Groff, MD.

**Gender**
Male	157
Female	149

**Ethnicity**
Black / African American	15
Asian / Pacific Islander	0
Non-Hispanic White	263
Hispanic	4
Native American / Alaskan Native	0
Other	2

**Age**
75 to 84	103
85 and over	22
Less than 65	7
65 to 74	161

Average of Total of Conditions of Medicare patients treated by Dr. Walter Lawrence Groff, MD From 2012 - 2020

The highest averages of the most common conditions of Medicare patients that Dr. Walter Lawrence Groff, MD treated were hypertension, high cholesterol, ischemic heart disease and diabetes.

Hypertension	56
High Cholesterol	55
Stroke	2
Ischemic Heart Disease	27
Depression	10
Chronic Kidney Disease	13
Asthma	5
Osteoporosis	7
Heart Failure	8
Chronic Obstructive Pulmonary Disease	4
Diabetes	18
Atrial Fibrillation	8
Cancer	14
Dementia	3

Education & Training

He has a state license in New Jersey.

Licensed In: New Jersey

Ratings & Reviews

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General Payments

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

**Payments by Company**
Celgene Corporation	$216 Abraxane $216
Salix Pharmaceuticals, Ltd	$138 XIFAXAN 550 MG TABLETS $79	APRISO $25	XIFAXAN - 550MG $18	UCERIS TABLETS $16
Shire North American Group Inc	$124 PENTASA $86	LIALDA $38
FOREST PHARMACEUTICALS, INC.	$81 LINZESS $81
Valeant Pharmaceuticals North America LLC	$63 XIFAXANIBSD $24	XIFAXAN $22	Uceris $16
Other	$206 Xofigo $35	PREPOPIK $34	AMITIZA $29	Non-Covered-Product $25	CLENPIQ $23	Other $60

**Types of Payments**
Food and Beverage	$828

Biography

Dr. Walter Groff is a medical specialist in colon & rectal surgery. Dr. Groff is especially interested in colorectal surgery procedures.

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Dr. Walter Lawrence Groff, MD

Office Locations

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. Walter Lawrence Groff, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Walter Lawrence Groff, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Walter Lawrence Groff, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Walter Lawrence Groff, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Walter Lawrence Groff, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Walter Lawrence Groff, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Walter Lawrence Groff, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Walter Lawrence Groff, MD in 2020

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2020

Average Medicare Patient Data From 2012 - 2020

Average of Total of Conditions of Medicare patients treated by Dr. Walter Lawrence Groff, MD From 2012 - 2020

Education & Training

Ratings & Reviews

General Payments

Biography

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