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Dr. John Charles Frederick, MD

Accepting New Patients

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Specializes in: Pediatric Ophthalmology and General Ophthalmology

University of Iowa, Carver College of Medicine

4731 45th Street Court
Rock Island, IL 61201

(309) 793-2020

Dr. John Charles Frederick, MD is a pediatric ophthalmologist in Rock Island, IL specializing in pediatric ophthalmology and general ophthalmology. He graduated from University of Iowa, Carver College of Medicine. Dr. John Charles Frederick, MD is affiliated with UnityPoint Health, Trinity Bettendorf, EYE SURGEONS ASSOCIATES PC, Trinity Moline and Trinity Rock Island.

Office Locations

Trinity Rock Island

4731 45th Street Court
Rock Island, IL 61201

(309) 793-2020

open_in_new

777 Tanglefoot Lane
Bettendorf, IA 52722

(563) 323-2020

(563) 328-5694

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Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. John Charles Frederick, MD treated as a pediatric ophthalmologist in Rock Island, IL during 2012 were eye procedures.

Volume of procedures performed by Dr. John Charles Frederick, MD for Medicare patients.

doctor visit	127
eye procedures	21

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. John Charles Frederick, MD treated as a pediatric ophthalmologist in Rock Island, IL during 2013 were eye procedures.

Volume of procedures performed by Dr. John Charles Frederick, MD for Medicare patients.

doctor visit	162
eye procedures	45

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. John Charles Frederick, MD.

**Gender**
Male	68
Female	86

**Age**
From 65 to 74	66
From 75 to 84	51
85 and over	14
Less than 65	23

Conditions of Medicare patients treated by Dr. John Charles Frederick, MD in 2013

Hypertension	63
High Cholesterol	55
Stroke	8
Ischemic Heart Disease	42
Depression	17
Chronic Kidney Disease	19
Asthma	10
Osteoperosis	0
Atrial Fibrilation	9
Heart Failure	18
Chronic Obstructive Pulmonary Disease	10
Diabetes	24
Dementia	9
Cancer	14

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. John Charles Frederick, MD treated as a pediatric ophthalmologist in Rock Island, IL during 2014 were eye procedures.

Volume of procedures performed by Dr. John Charles Frederick, MD for Medicare patients.

doctor visit	164
eye procedures	34

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. John Charles Frederick, MD.

**Gender**
Male	63
Female	85

**Age**
From 65 to 74	64
From 75 to 84	49
85 and over	16
Less than 65	19

Conditions of Medicare patients treated by Dr. John Charles Frederick, MD in 2014

Hypertension	64
High Cholesterol	59
Stroke	0
Ischemic Heart Disease	32
Depression	16
Chronic Kidney Disease	20
Asthma	0
Osteoperosis	0
Atrial Fibrilation	9
Heart Failure	10
Chronic Obstructive Pulmonary Disease	10
Diabetes	24
Dementia	0
Cancer	14

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. John Charles Frederick, MD treated as a pediatric ophthalmologist in Rock Island, IL during 2015 were eye procedures.

Volume of procedures performed by Dr. John Charles Frederick, MD for Medicare patients.

doctor visit	163
eye procedures	30

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. John Charles Frederick, MD.

**Gender**
Male	142
Female	180

**Age**
From 65 to 74	152
From 75 to 84	100
85 and over	36
Less than 65	34

Conditions of Medicare patients treated by Dr. John Charles Frederick, MD in 2015

Hypertension	63
High Cholesterol	53
Stroke	0
Ischemic Heart Disease	40
Depression	20
Chronic Kidney Disease	23
Asthma	9
Osteoperosis	0
Atrial Fibrilation	9
Heart Failure	12
Chronic Obstructive Pulmonary Disease	14
Diabetes	24
Dementia	0
Cancer	12

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. John Charles Frederick, MD treated as a pediatric ophthalmologist in Rock Island, IL during 2016 were eye procedures.

Volume of procedures performed by Dr. John Charles Frederick, MD for Medicare patients.

doctor visit	121
eye procedures	17

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. John Charles Frederick, MD.

**Gender**
Male	62
Female	72

**Ethnicity**
Non-Hispanic White	121
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	60
From 75 to 84	37
85 and over	17
Less than 65	20

Conditions of Medicare patients treated by Dr. John Charles Frederick, MD in 2016

Hypertension	66
High Cholesterol	57
Stroke	0
Ischemic Heart Disease	37
Depression	21
Chronic Kidney Disease	25
Asthma	16
Osteoperosis	9
Atrial Fibrilation	0
Heart Failure	13
Chronic Obstructive Pulmonary Disease	14
Diabetes	25
Dementia	0
Cancer	9

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. John Charles Frederick, MD treated as a pediatric ophthalmologist in Rock Island, IL during 2017 were eye procedures.

Volume of procedures performed by Dr. John Charles Frederick, MD for Medicare patients.

doctor visit	141
eye procedures	62

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. John Charles Frederick, MD.

**Gender**
Male	74
Female	103

**Ethnicity**
Non-Hispanic White	163
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	63
From 75 to 84	68
85 and over	22
Less than 65	24

Conditions of Medicare patients treated by Dr. John Charles Frederick, MD in 2017

Hypertension	66
High Cholesterol	53
Stroke	7
Ischemic Heart Disease	34
Depression	25
Chronic Kidney Disease	24
Asthma	7
Osteoperosis	10
Atrial Fibrilation	14
Heart Failure	11
Chronic Obstructive Pulmonary Disease	15
Diabetes	25
Dementia	0
Cancer	10

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. John Charles Frederick, MD treated as a pediatric ophthalmologist in Rock Island, IL during 2018 were eye procedures.

Volume of procedures performed by Dr. John Charles Frederick, MD for Medicare patients.

doctor visit	143
eye procedures	48

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. John Charles Frederick, MD.

**Gender**
Male	77
Female	97

**Age**
From 65 to 74	69
From 75 to 84	57
85 and over	24
Less than 65	24

Conditions of Medicare patients treated by Dr. John Charles Frederick, MD in 2018

Hypertension	60
High Cholesterol	56
Stroke	10
Ischemic Heart Disease	37
Depression	25
Chronic Kidney Disease	29
Asthma	0
Osteoperosis	7
Atrial Fibrilation	10
Heart Failure	11
Chronic Obstructive Pulmonary Disease	18
Diabetes	26
Dementia	6
Cancer	9

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. John Charles Frederick, MD treated as a pediatric ophthalmologist in Rock Island, IL during 2019 were eye procedures.

Volume of procedures performed by Dr. John Charles Frederick, MD for Medicare patients.

doctor visit	139
eye procedures	60

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. John Charles Frederick, MD.

**Gender**
Male	73
Female	103

**Ethnicity**
Non-Hispanic White	161
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	71
From 75 to 84	70
85 and over	20
Less than 65	15

Conditions of Medicare patients treated by Dr. John Charles Frederick, MD in 2019

Hypertension	61
High Cholesterol	60
Stroke	7
Ischemic Heart Disease	33
Depression	24
Chronic Kidney Disease	26
Asthma	9
Osteoperosis	9
Atrial Fibrilation	14
Heart Failure	14
Chronic Obstructive Pulmonary Disease	19
Diabetes	27
Dementia	12
Cancer	6

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. John Charles Frederick, MD treated as a pediatric ophthalmologist in Rock Island, IL during 2020 were eye procedures.

Volume of procedures performed by Dr. John Charles Frederick, MD for Medicare patients.

doctor visit	106
eye procedures	45

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. John Charles Frederick, MD.

**Gender**
Male	56
Female	88

**Ethnicity**
Non-Hispanic White	132
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	60
From 75 to 84	52
85 and over	19
Less than 65	13

Conditions of Medicare patients treated by Dr. John Charles Frederick, MD in 2020

Hypertension	64
High Cholesterol	63
Stroke	8
Ischemic Heart Disease	34
Depression	30
Chronic Kidney Disease	30
Asthma	0
Osteoperosis	0
Atrial Fibrilation	10
Heart Failure	12
Chronic Obstructive Pulmonary Disease	11
Diabetes	22
Dementia	9
Cancer	0

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. John Charles Frederick, MD treated as a pediatric ophthalmologist in Rock Island, IL during 2021 were eye procedures and injections.

Volume of procedures performed by Dr. John Charles Frederick, MD for Medicare patients.

doctor visit	131
eye procedures	119
injections	15

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. John Charles Frederick, MD.

**Gender**
Male	72
Female	119

**Ethnicity**
Non-Hispanic White	178
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	83
From 75 to 84	62
85 and over	27
Less than 65	19

Conditions of Medicare patients treated by Dr. John Charles Frederick, MD in 2021

Hypertension	72
High Cholesterol	60
Stroke	0
Ischemic Heart Disease	39
Depression	24
Chronic Kidney Disease	31
Asthma	6
Osteoperosis	9
Atrial Fibrilation	11
Heart Failure	12
Chronic Obstructive Pulmonary Disease	12
Diabetes	34
Dementia	6
Cancer	10

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. John Charles Frederick, MD treated as a pediatric ophthalmologist in Rock Island, IL during 2022 were eye procedures.

Volume of procedures performed by Dr. John Charles Frederick, MD for Medicare patients.

doctor visit	112
eye procedures	68

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. John Charles Frederick, MD.

**Gender**
Male	72
Female	102

**Age**
From 65 to 74	72
From 75 to 84	69
85 and over	16
Less than 65	17

Conditions of Medicare patients treated by Dr. John Charles Frederick, MD in 2022

Hypertension	69
High Cholesterol	70
Stroke	13
Ischemic Heart Disease	30
Depression	16
Chronic Kidney Disease	21
Asthma	9
Osteoperosis	13
Atrial Fibrilation	11
Heart Failure	10
Chronic Obstructive Pulmonary Disease	16
Diabetes	24
Dementia	0
Cancer	14

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. John Charles Frederick, MD for Medicare patients.

The highest averages for the top procedures that Dr. John Charles Frederick, MD treated as a pediatric ophthalmologist in Rock Island, IL were eye procedures and injections.

doctor visit	137
eye procedures	49
injections	15

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. John Charles Frederick, MD.

**Gender**
Male	69
Female	94

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	68
Native American / Alaskan Native	0
Hispanic	0
Other	0

**Age**
75 to 84	55
85 and over	19
Less than 65	18
65 to 74	69

Average of Total of Conditions of Medicare patients treated by Dr. John Charles Frederick, MD From 2012 - 2022

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

Hypertension	58
High Cholesterol	53
Stroke	4
Ischemic Heart Disease	32
Depression	19
Chronic Kidney Disease	22
Asthma	6
Osteoporosis	5
Heart Failure	11
Chronic Obstructive Pulmonary Disease	12
Diabetes	23
Atrial Fibrillation	8
Dementia	3
Cancer	8

Education & Training

Dr. John Charles Frederick, MD graduated from University of Iowa, Carver College of Medicine. He completed residency at Weill Cornell Medical College Affiliated Hospitals. He is certified by the Ophthalmology and has a state license in Illinois.

Medical School: University of Iowa, Carver College of Medicine

Residency: Weill Cornell Medical College Affiliated Hospitals

Board Certification: Ophthalmology

Licensed In: Illinois

Affiliations & Hospitals

Dr. John Charles Frederick, MD is associated with these hospitals and organizations:

UnityPoint Health

Trinity Bettendorf

EYE SURGEONS ASSOCIATES PC

Trinity Moline

Trinity Rock Island

Ratings & Reviews

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General Payments

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

**Payments by Company**
Allergan Inc.	$189 RESTASIS $17	$172
Novartis Pharmaceuticals Corporation	$186 $186
GLAUKOS CORPORATION	$114 ISTENT TRABECULAR MICRO-BYPASS STENT SYSTEM $114
Shire North American Group Inc	$106 XIIDRA $106
Bausch & Lomb, a division of Bausch Health US, LLC	$99 VYZULTA $99
Other	$219 InflammaDry Device $35	BRILINTA $21	SYFOVRE $17	Phoenix Catheter System $16	LOTEMAX GEL $16	Other $114

**Types of Payments**
Food and Beverage	$913

Biography

Dr. John Frederick practices general ophthalmology and pediatric ophthalmology. He is professionally affiliated with UnityPoint Health. Dr. Frederick is a graduate of the University of Iowa, Carver College of Medicine. His residency was performed at a hospital affiliated with Weill Cornell Medical College. UnityPoint Health reports that he is accepting new patients at his office in Rock Island, IL.

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Dr. John Charles Frederick, 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. John Charles Frederick, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Charles Frederick, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Charles Frederick, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Charles Frederick, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Charles Frederick, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Charles Frederick, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Charles Frederick, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Charles Frederick, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Charles Frederick, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Charles Frederick, MD in 2022

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Average Medicare Patient Data From 2012 - 2022

Average of Total of Conditions of Medicare patients treated by Dr. John Charles Frederick, MD From 2012 - 2022

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Biography

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