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Dr. Mary E. Keller, MD

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Specializes in: Surgery

University of Missouri-Kansas City School of Medicine (1994)

5668 E State Street
Rockford, IL 61108

(815) 229-7580

Dr. Mary E. Keller, MD is a surgeon in Rockford, IL specializing in surgery. She graduated from University of Missouri-Kansas City School of Medicine in 1994 and has 32 years of experience.

Office Locations

5668 E State Street
Rockford, IL 61108

(815) 229-7580

(815) 229-7585

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Noteworthy Medicare Patient Procedures Performed by Dr. Mary E. Keller, MD in 2024

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

Top 5%

By Volume:

chemical cautery for granulation tissue

In 2024, Dr. Mary E. Keller, MD performed more chemical cautery for granulation tissue procedures for Medicare patients than 95% of providers in related specialties within Illinois.

Top 10%

By Affordability:

minor procedures

In 2024, Dr. Mary E. Keller, MD had a list price for minor procedures that was lower than the list prices billed to Medicare by 90% of providers in related specialties within Illinois. 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.

Top 25%

By Volume:

debridement

By Affordability:

hospital care

inpatient care

inpatient hospital care

In 2012, among providers in related specialties within Illinois, Dr. Mary E. Keller, MD performed more debridement (removal of unhealthy tissue) procedures for Medicare patients than 75% of them and she also had a list price for hospital care, inpatient care, and inpatient hospital care (for patient admitted to hospital) that was lower than the list prices billed to Medicare by 75% 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. Mary E. Keller, MD treated as a surgeon in Rockford, IL during 2012 were hospital care, inpatient care, lymph node procedures and excision.

Volume of procedures performed by Dr. Mary E. Keller, MD for Medicare patients.

breast procedures	16
cancer surgery	16
catheterization	13
diagnostic procedures	19
doctor visit	333
excision	35
hospital care	149
inpatient care	149
lymph node procedures	37
open surgery	19

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Mary E. Keller, MD treated as a surgeon in Rockford, IL during 2013 were hospital care, inpatient care, excision and lymph node procedures.

Volume of procedures performed by Dr. Mary E. Keller, MD for Medicare patients.

breast procedures	37
cancer surgery	37
catheterization	14
debridement (removal of unhealthy tissue)	19
diagnostic procedures	26
doctor visit	355
excision	63
hospital care	151
inpatient care	151
lymph node procedures	52
open surgery	26

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary E. Keller, MD.

**Gender**
Male	66
Female	220

**Ethnicity**
Non-Hispanic White	242
Black	30
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	119
From 75 to 84	69
85 and over	28
Less than 65	70

Conditions of Medicare patients treated by Dr. Mary E. Keller, MD in 2013

Hypertension	71
High Cholesterol	52
Stroke	6
Ischemic Heart Disease	26
Depression	21
Chronic Kidney Disease	28
Asthma	11
Osteoperosis	10
Atrial Fibrilation	9
Heart Failure	21
Chronic Obstructive Pulmonary Disease	19
Diabetes	36
Dementia	7
Cancer	44

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Mary E. Keller, MD treated as a surgeon in Rockford, IL during 2014 were hospital care, inpatient care, excision and breast procedures.

Volume of procedures performed by Dr. Mary E. Keller, MD for Medicare patients.

breast procedures	45
cancer surgery	32
debridement (removal of unhealthy tissue)	20
diagnostic procedures	34
doctor visit	335
excision	66
hospital care	110
inpatient care	110
lymph node procedures	41
open surgery	34

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary E. Keller, MD.

**Gender**
Male	59
Female	204

**Ethnicity**
Non-Hispanic White	228
Black	22
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	112
From 75 to 84	72
85 and over	25
Less than 65	54

Conditions of Medicare patients treated by Dr. Mary E. Keller, MD in 2014

Hypertension	69
High Cholesterol	50
Stroke	0
Ischemic Heart Disease	27
Depression	29
Chronic Kidney Disease	32
Asthma	14
Osteoperosis	14
Atrial Fibrilation	14
Heart Failure	22
Chronic Obstructive Pulmonary Disease	24
Diabetes	37
Dementia	5
Cancer	44

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Mary E. Keller, MD treated as a surgeon in Rockford, IL during 2015 were hospital care, inpatient care, lymph node procedures and excision.

Volume of procedures performed by Dr. Mary E. Keller, MD for Medicare patients.

breast procedures	20
cancer surgery	20
device removal	12
diagnostic procedures	23
doctor visit	282
excision	43
hospital care	81
inpatient care	81
lymph node procedures	45
open surgery	23

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary E. Keller, MD.

**Gender**
Male	98
Female	382

**Ethnicity**
Non-Hispanic White	412
Black	40
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	210
From 75 to 84	144
85 and over	36
Less than 65	90

Conditions of Medicare patients treated by Dr. Mary E. Keller, MD in 2015

Hypertension	75
High Cholesterol	64
Stroke	8
Ischemic Heart Disease	35
Depression	33
Chronic Kidney Disease	36
Asthma	19
Osteoperosis	13
Atrial Fibrilation	13
Heart Failure	23
Chronic Obstructive Pulmonary Disease	21
Diabetes	43
Dementia	10
Cancer	47

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Mary E. Keller, MD treated as a surgeon in Rockford, IL during 2016 were hospital care, inpatient care, excision and open surgery.

Volume of procedures performed by Dr. Mary E. Keller, MD for Medicare patients.

breast procedures	27
cancer surgery	11
diagnostic procedures	28
doctor visit	276
excision	39
hospital care	139
inpatient care	139
lymph node procedures	25
open surgery	28

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary E. Keller, MD.

**Gender**
Male	59
Female	202

**Ethnicity**
Non-Hispanic White	228
Black	0
Hispanic	16
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	97
From 75 to 84	91
85 and over	32
Less than 65	41

Conditions of Medicare patients treated by Dr. Mary E. Keller, MD in 2016

Hypertension	71
High Cholesterol	66
Stroke	7
Ischemic Heart Disease	36
Depression	30
Chronic Kidney Disease	39
Asthma	26
Osteoperosis	16
Atrial Fibrilation	15
Heart Failure	26
Chronic Obstructive Pulmonary Disease	24
Diabetes	36
Dementia	11
Cancer	43

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Mary E. Keller, MD treated as a surgeon in Rockford, IL during 2017 were hospital care, inpatient care, open surgery and diagnostic procedures.

Volume of procedures performed by Dr. Mary E. Keller, MD for Medicare patients.

breast procedures	17
diagnostic procedures	34
doctor visit	261
excision	34
hospital care	190
inpatient care	190
lymph node procedures	33
open surgery	34

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary E. Keller, MD.

**Gender**
Male	67
Female	224

**Ethnicity**
Non-Hispanic White	259
Black	0
Hispanic	14
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	122
From 75 to 84	88
85 and over	34
Less than 65	47

Conditions of Medicare patients treated by Dr. Mary E. Keller, MD in 2017

Hypertension	72
High Cholesterol	54
Stroke	9
Ischemic Heart Disease	35
Depression	33
Chronic Kidney Disease	36
Asthma	11
Osteoperosis	12
Atrial Fibrilation	18
Heart Failure	24
Chronic Obstructive Pulmonary Disease	19
Diabetes	33
Dementia	12
Cancer	41

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Mary E. Keller, MD treated as a surgeon in Rockford, IL during 2018 were hospital care, inpatient care, open surgery and diagnostic procedures.

Volume of procedures performed by Dr. Mary E. Keller, MD for Medicare patients.

breast procedures	12
debridement (removal of unhealthy tissue)	21
diagnostic procedures	23
doctor visit	365
excision	23
hospital care	104
inpatient care	104
lymph node procedures	22
open surgery	23

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary E. Keller, MD.

**Gender**
Male	63
Female	199

**Ethnicity**
Non-Hispanic White	236
Black	0
Hispanic	11
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	115
From 75 to 84	68
85 and over	34
Less than 65	45

Conditions of Medicare patients treated by Dr. Mary E. Keller, MD in 2018

Hypertension	68
High Cholesterol	59
Stroke	8
Ischemic Heart Disease	32
Depression	29
Chronic Kidney Disease	38
Asthma	8
Osteoperosis	11
Atrial Fibrilation	12
Heart Failure	21
Chronic Obstructive Pulmonary Disease	17
Diabetes	33
Dementia	8
Cancer	37

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Mary E. Keller, MD treated as a surgeon in Rockford, IL during 2019 were hospital care and inpatient care.

Volume of procedures performed by Dr. Mary E. Keller, MD for Medicare patients.

doctor visit	332
hospital care	117
inpatient care	117

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary E. Keller, MD.

**Gender**
Male	86
Female	189

**Ethnicity**
Non-Hispanic White	250
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	104
From 75 to 84	85
85 and over	40
Less than 65	46

Conditions of Medicare patients treated by Dr. Mary E. Keller, MD in 2019

Hypertension	69
High Cholesterol	66
Stroke	0
Ischemic Heart Disease	36
Depression	29
Chronic Kidney Disease	39
Asthma	8
Osteoperosis	10
Atrial Fibrilation	14
Heart Failure	25
Chronic Obstructive Pulmonary Disease	18
Diabetes	34
Dementia	9
Cancer	35

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Mary E. Keller, MD treated as a surgeon in Rockford, IL during 2020 were hospital care, inpatient care, debridement (removal of unhealthy tissue) and excision.

Volume of procedures performed by Dr. Mary E. Keller, MD for Medicare patients.

debridement (removal of unhealthy tissue)	100
doctor visit	344
excision	12
hospital care	175
inpatient care	175

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary E. Keller, MD.

**Gender**
Male	97
Female	195

**Ethnicity**
Non-Hispanic White	260
Black	12
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	98
From 75 to 84	100
85 and over	49
Less than 65	45

Conditions of Medicare patients treated by Dr. Mary E. Keller, MD in 2020

Hypertension	75
High Cholesterol	62
Stroke	5
Ischemic Heart Disease	41
Depression	33
Chronic Kidney Disease	48
Asthma	11
Osteoperosis	13
Atrial Fibrilation	17
Heart Failure	35
Chronic Obstructive Pulmonary Disease	18
Diabetes	40
Dementia	14
Cancer	30

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Mary E. Keller, MD treated as a surgeon in Rockford, IL during 2021 were hospital care, inpatient care, debridement (removal of unhealthy tissue) and minor procedures.

Volume of procedures performed by Dr. Mary E. Keller, MD for Medicare patients.

debridement (removal of unhealthy tissue)	103
diagnostic procedures	11
doctor visit	400
excision	11
hospital care	145
inpatient care	145
lymph node procedures	11
minor procedures	12
open surgery	11
wound repair (e.g. stitches)	12

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary E. Keller, MD.

**Gender**
Male	90
Female	181

**Ethnicity**
Non-Hispanic White	253
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	107
From 75 to 84	97
85 and over	36
Less than 65	31

Conditions of Medicare patients treated by Dr. Mary E. Keller, MD in 2021

Hypertension	74
High Cholesterol	67
Stroke	7
Ischemic Heart Disease	34
Depression	31
Chronic Kidney Disease	46
Asthma	8
Osteoperosis	12
Atrial Fibrilation	21
Heart Failure	32
Chronic Obstructive Pulmonary Disease	23
Diabetes	34
Dementia	11
Cancer	32

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Mary E. Keller, MD treated as a surgeon in Rockford, IL during 2022 were debridement (removal of unhealthy tissue), hospital care, inpatient care and excision.

Volume of procedures performed by Dr. Mary E. Keller, MD for Medicare patients.

debridement (removal of unhealthy tissue)	199
diagnostic procedures	13
doctor visit	602
excision	33
hospital care	103
inpatient care	103
lymph node procedures	24
open surgery	13

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary E. Keller, MD.

**Gender**
Male	116
Female	184

**Ethnicity**
Non-Hispanic White	279
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	121
From 75 to 84	101
85 and over	50
Less than 65	28

Conditions of Medicare patients treated by Dr. Mary E. Keller, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	10
Ischemic Heart Disease	30
Depression	22
Chronic Kidney Disease	33
Asthma	11
Osteoperosis	16
Atrial Fibrilation	29
Heart Failure	30
Chronic Obstructive Pulmonary Disease	24
Diabetes	35
Dementia	9
Cancer	36

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Mary E. Keller, MD treated as a surgeon in Rockford, IL during 2023 were debridement (removal of unhealthy tissue), excision, hospital care and inpatient care.

Volume of procedures performed by Dr. Mary E. Keller, MD for Medicare patients.

breast procedures	13
debridement (removal of unhealthy tissue)	198
diagnostic procedures	28
doctor visit	811
excision	46
hospital care	44
inpatient care	44
lymph node procedures	29
minor procedures	35
open surgery	28

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary E. Keller, MD.

**Gender**
Male	90
Female	174

**Ethnicity**
Non-Hispanic White	245
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	95
From 75 to 84	89
85 and over	48
Less than 65	32

Conditions of Medicare patients treated by Dr. Mary E. Keller, MD in 2023

Hypertension	75
High Cholesterol	75
Stroke	11
Ischemic Heart Disease	29
Depression	29
Chronic Kidney Disease	34
Asthma	12
Osteoperosis	23
Atrial Fibrilation	29
Heart Failure	30
Chronic Obstructive Pulmonary Disease	24
Diabetes	42
Dementia	8
Cancer	39

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. Mary E. Keller, MD treated as a surgeon in Rockford, IL during 2024 were hospital care, inpatient care, debridement (removal of unhealthy tissue) and minor procedures.

Volume of procedures performed by Dr. Mary E. Keller, MD for Medicare patients.

debridement (removal of unhealthy tissue)	86
doctor visit	719
hospital care	91
inpatient care	91
minor procedures	38

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary E. Keller, MD.

**Gender**
Male	108
Female	129

**Ethnicity**
Non-Hispanic White	209
Black	11
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	77
From 75 to 84	88
85 and over	48
Less than 65	24

Conditions of Medicare patients treated by Dr. Mary E. Keller, MD in 2024

Hypertension	75
High Cholesterol	75
Stroke	14
Ischemic Heart Disease	46
Depression	28
Chronic Kidney Disease	46
Asthma	13
Osteoperosis	21
Atrial Fibrilation	38
Heart Failure	49
Chronic Obstructive Pulmonary Disease	30
Diabetes	52
Dementia	11
Cancer	24

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. Mary E. Keller, MD for Medicare patients.

The highest averages for the top procedures that Dr. Mary E. Keller, MD treated as a surgeon in Rockford, IL were inpatient care, hospital care, debridement (removal of unhealthy tissue) and excision.

breast procedures	23
cancer surgery	23
catheterization	13
debridement (removal of unhealthy tissue)	93
device removal	12
diagnostic procedures	23
doctor visit	416
excision	36
hospital care	123
inpatient care	123
lymph node procedures	31
minor procedures	28
open surgery	23
wound repair (e.g. stitches)	12

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Mary E. Keller, MD.

**Gender**
Male	76
Female	191

**Ethnicity**
Black / African American	8
Asian / Pacific Islander	0
Non-Hispanic White	238
Hispanic	3
Native American / Alaskan Native	0
Other	0

**Age**
75 to 84	84
85 and over	35
Less than 65	42
65 to 74	105

Average of Total of Conditions of Medicare patients treated by Dr. Mary E. Keller, MD From 2012 - 2024

The highest averages of the most common conditions of Medicare patients that Dr. Mary E. Keller, MD treated were hypertension, high cholesterol, chronic kidney disease and diabetes.

Hypertension	66
High Cholesterol	58
Stroke	6
Ischemic Heart Disease	31
Depression	26
Chronic Kidney Disease	35
Asthma	11
Osteoporosis	13
Heart Failure	26
Chronic Obstructive Pulmonary Disease	20
Diabetes	35
Atrial Fibrillation	17
Dementia	8
Cancer	34

Education & Training

Dr. Mary E. Keller, MD graduated from University of Missouri-Kansas City School of Medicine in 1994. She has a state license in Illinois.

Medical School: University of Missouri-Kansas City School of Medicine (1994)

Licensed In: Illinois

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General Payments

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

**Payments by Company**
Cook Incorporated	$456 Urology $456
LIFECELL CORPORATION	$38 STRATTICE $38
Merck Sharp & Dohme Corporation	$27 NON-PRODUCT $27
MIMEDX Group, Inc.	$23 $23
Olympus America Inc.	$16 Surgical Energy Products $16
Other	$35 Perjeta $12	Edarbi $12	XARTEMIS XR $11