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Home > IL Providers > Family Physicians & Family Medicine Specialists

Dr. Katherine A. Diemer, MD

Accepting New Patients

(Katherine A. Diemer, MD)

(39 Ratings)

Specializes in: Family Medicine and General Practice

Rush Medical College

1301 S. Kiwanis Drive
Freeport, IL 61032

(815) 235-1406

Dr. Katherine A. Diemer, MD is a family medicine practitioner in Freeport, IL specializing in family medicine and general practice. She graduated from Rush Medical College. Dr. Katherine A. Diemer, MD is affiliated with SSM Health, SSM Health Monroe Hospital and SSM Health Monroe Clinic Medical Group.

Office Locations

1301 S. Kiwanis Drive
Freeport, IL 61032

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Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Katherine A. Diemer, MD treated as a family medicine practitioner in Freeport, IL during 2012 were blood draw.

Volume of procedures performed by Dr. Katherine A. Diemer, MD for Medicare patients.

blood draw	38
doctor visit	350

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

Volume of procedures performed by Dr. Katherine A. Diemer, MD for Medicare patients.

doctor visit	957

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Katherine A. Diemer, MD.

**Gender**
Male	142
Female	253

**Ethnicity**
Non-Hispanic White	316
Black	68
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	134
From 75 to 84	87
85 and over	32
Less than 65	142

Conditions of Medicare patients treated by Dr. Katherine A. Diemer, MD in 2013

Hypertension	68
High Cholesterol	51
Stroke	3
Ischemic Heart Disease	26
Depression	30
Chronic Kidney Disease	19
Asthma	13
Osteoperosis	4
Atrial Fibrilation	6
Heart Failure	13
Chronic Obstructive Pulmonary Disease	11
Diabetes	30
Dementia	7
Cancer	4

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

Volume of procedures performed by Dr. Katherine A. Diemer, MD for Medicare patients.

doctor visit	1089

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Katherine A. Diemer, MD.

**Gender**
Male	148
Female	248

**Ethnicity**
Non-Hispanic White	323
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	147
From 75 to 84	80
85 and over	31
Less than 65	138

Conditions of Medicare patients treated by Dr. Katherine A. Diemer, MD in 2014

Hypertension	67
High Cholesterol	50
Stroke	0
Ischemic Heart Disease	25
Depression	29
Chronic Kidney Disease	18
Asthma	14
Osteoperosis	5
Atrial Fibrilation	8
Heart Failure	16
Chronic Obstructive Pulmonary Disease	13
Diabetes	33
Dementia	7
Cancer	4

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

Volume of procedures performed by Dr. Katherine A. Diemer, MD for Medicare patients.

doctor visit	653

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Katherine A. Diemer, MD.

**Gender**
Male	218
Female	428

**Ethnicity**
Non-Hispanic White	532
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	278
From 75 to 84	114
85 and over	64
Less than 65	190

Conditions of Medicare patients treated by Dr. Katherine A. Diemer, MD in 2015

Hypertension	58
High Cholesterol	49
Stroke	0
Ischemic Heart Disease	24
Depression	27
Chronic Kidney Disease	20
Asthma	12
Osteoperosis	3
Atrial Fibrilation	8
Heart Failure	15
Chronic Obstructive Pulmonary Disease	13
Diabetes	28
Dementia	8
Cancer	6

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

Volume of procedures performed by Dr. Katherine A. Diemer, MD for Medicare patients.

doctor visit	808

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Katherine A. Diemer, MD.

**Gender**
Male	108
Female	224

**Ethnicity**
Non-Hispanic White	276
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	136
From 75 to 84	65
85 and over	27
Less than 65	104

Conditions of Medicare patients treated by Dr. Katherine A. Diemer, MD in 2016

Hypertension	64
High Cholesterol	49
Stroke	4
Ischemic Heart Disease	25
Depression	30
Chronic Kidney Disease	25
Asthma	20
Osteoperosis	0
Atrial Fibrilation	8
Heart Failure	13
Chronic Obstructive Pulmonary Disease	15
Diabetes	30
Dementia	7
Cancer	4

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

Volume of procedures performed by Dr. Katherine A. Diemer, MD for Medicare patients.

doctor visit	657

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Katherine A. Diemer, MD.

**Gender**
Male	101
Female	216

**Ethnicity**
Non-Hispanic White	264
Black	41
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	144
From 75 to 84	47
85 and over	29
Less than 65	97

Conditions of Medicare patients treated by Dr. Katherine A. Diemer, MD in 2017

Hypertension	62
High Cholesterol	44
Stroke	4
Ischemic Heart Disease	24
Depression	27
Chronic Kidney Disease	25
Asthma	10
Osteoperosis	4
Atrial Fibrilation	8
Heart Failure	15
Chronic Obstructive Pulmonary Disease	13
Diabetes	31
Dementia	7
Cancer	7

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

Volume of procedures performed by Dr. Katherine A. Diemer, MD for Medicare patients.

doctor visit	686

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Katherine A. Diemer, MD.

**Gender**
Male	87
Female	195

**Ethnicity**
Non-Hispanic White	239
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	117
From 75 to 84	61
85 and over	19
Less than 65	85

Conditions of Medicare patients treated by Dr. Katherine A. Diemer, MD in 2018

Hypertension	59
High Cholesterol	45
Stroke	0
Ischemic Heart Disease	21
Depression	29
Chronic Kidney Disease	25
Asthma	10
Osteoperosis	0
Atrial Fibrilation	7
Heart Failure	15
Chronic Obstructive Pulmonary Disease	15
Diabetes	31
Dementia	5
Cancer	6

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

Volume of procedures performed by Dr. Katherine A. Diemer, MD for Medicare patients.

doctor visit	662

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Katherine A. Diemer, MD.

**Gender**
Male	79
Female	194

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

**Age**
From 65 to 74	115
From 75 to 84	61
85 and over	23
Less than 65	74

Conditions of Medicare patients treated by Dr. Katherine A. Diemer, MD in 2019

Hypertension	63
High Cholesterol	48
Stroke	4
Ischemic Heart Disease	22
Depression	29
Chronic Kidney Disease	25
Asthma	8
Osteoperosis	0
Atrial Fibrilation	8
Heart Failure	16
Chronic Obstructive Pulmonary Disease	10
Diabetes	32
Dementia	5
Cancer	6

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

Volume of procedures performed by Dr. Katherine A. Diemer, MD for Medicare patients.

doctor visit	561

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Katherine A. Diemer, MD.

**Gender**
Male	74
Female	199

**Ethnicity**
Non-Hispanic White	233
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	116
From 75 to 84	57
85 and over	24
Less than 65	76

Conditions of Medicare patients treated by Dr. Katherine A. Diemer, MD in 2020

Hypertension	58
High Cholesterol	48
Stroke	5
Ischemic Heart Disease	23
Depression	23
Chronic Kidney Disease	24
Asthma	6
Osteoperosis	0
Atrial Fibrilation	8
Heart Failure	16
Chronic Obstructive Pulmonary Disease	10
Diabetes	30
Dementia	5
Cancer	8

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

Volume of procedures performed by Dr. Katherine A. Diemer, MD for Medicare patients.

doctor visit	457

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Katherine A. Diemer, MD.

**Gender**
Male	76
Female	171

**Ethnicity**
Non-Hispanic White	217
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	114
From 75 to 84	55
85 and over	28
Less than 65	50

Conditions of Medicare patients treated by Dr. Katherine A. Diemer, MD in 2021

Hypertension	60
High Cholesterol	52
Stroke	0
Ischemic Heart Disease	24
Depression	20
Chronic Kidney Disease	21
Asthma	0
Osteoperosis	0
Atrial Fibrilation	8
Heart Failure	13
Chronic Obstructive Pulmonary Disease	9
Diabetes	29
Dementia	6
Cancer	5

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

Volume of procedures performed by Dr. Katherine A. Diemer, MD for Medicare patients.

doctor visit	414

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Katherine A. Diemer, MD.

**Gender**
Male	71
Female	158

**Ethnicity**
Non-Hispanic White	211
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	114
From 75 to 84	57
85 and over	19
Less than 65	39

Conditions of Medicare patients treated by Dr. Katherine A. Diemer, MD in 2022

Hypertension	70
High Cholesterol	59
Stroke	0
Ischemic Heart Disease	19
Depression	17
Chronic Kidney Disease	13
Asthma	10
Osteoperosis	0
Atrial Fibrilation	12
Heart Failure	10
Chronic Obstructive Pulmonary Disease	10
Diabetes	30
Dementia	0
Cancer	11

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Katherine A. Diemer, MD for Medicare patients.

The highest averages for the top procedures that Dr. Katherine A. Diemer, MD treated as a family medicine practitioner in Freeport, IL were blood draw.

blood draw	38
doctor visit	663

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Katherine A. Diemer, MD.

**Gender**
Female	207
Male	100

**Ethnicity**
Black / African American	9
Asian / Pacific Islander	0
Non-Hispanic White	258
Native American / Alaskan Native	0
Hispanic	0
Other	0

**Age**
85 and over	26
75 to 84	62
Less than 65	90
65 to 74	128

Average of Total of Conditions of Medicare patients treated by Dr. Katherine A. Diemer, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Katherine A. Diemer, MD treated were hypertension, high cholesterol, diabetes and depression.

Hypertension	57
High Cholesterol	45
Stroke	1
Ischemic Heart Disease	21
Depression	23
Chronic Kidney Disease	19
Asthma	9
Osteoporosis	1
Heart Failure	12
Chronic Obstructive Pulmonary Disease	10
Diabetes	27
Atrial Fibrillation	7
Dementia	5
Cancer	5

Education & Training

Dr. Katherine A. Diemer, MD graduated from Rush Medical College. She is certified by the American Board of Family Medicine Drug Enforcement Administration Illinois Department of Professional Regulation Wisconsin Medical Examining Board and has a state license in Illinois.

Medical School: Rush Medical College

Board Certification: American Board of Family Medicine Drug Enforcement Administration Illinois Department of Professional Regulation Wisconsin Medical Examining Board

Licensed In: Illinois

Affiliations & Hospitals

Dr. Katherine A. Diemer, MD is associated with these hospitals and organizations:

SSM Health

SSM Health Monroe Hospital

SSM Health Monroe Clinic Medical Group

Ratings & Reviews

Dr. Katherine A. Diemer, MD has an exceptional overall rating with an average of 4.95 out of 5 stars based on 39 ratings. We collect ratings and reviews of Dr. Katherine A. Diemer, MD from all over the web to help you find the right in Freeport, IL.

4.95

Overall Rating

(39 Ratings)

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General Payments

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

**Payments by Company**
AstraZeneca Pharmaceuticals LP	$79 BYDUREON WEEKLY $41	SYMBICORT $38
Boehringer Ingelheim Pharmaceuticals, Inc.	$68 SPIRIVA RESPIMAT $32	TRADJENTA $13	STIOLTO $11	COMBIVENT RESPIMAT $11
Merck Sharp & Dohme Corporation	$22 NEXPLANON $22
Takeda Pharmaceuticals America, Inc.	$14 Brintellix $14
Purdue Pharma L.P.	$12 OXYCONTIN $12

**Types of Payments**
Food and Beverage	$194

Biography

Dr. Katherine Diemer is a specialist in general practice and family medicine. She has a special interest in primary care. She is professionally affiliated with SSM Health. Dr. Diemer studied medicine at Rush Medical College. Dr. Diemer is rated highly by her patients. According to Yext, she is currently accepting new patients at her office in Freeport, IL.