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Home > IL Providers > Ophthalmologists

Dr. Mark Johnston Fritz, MD

(Dr. Mark J. Fritz, M.D.)

(1 Rating)

Specializes in: Ophthalmology (Eye Disease)

Northwestern University, Feinberg School of Medicine

212 N Larkin Avenue
Joliet, IL 60435

(815) 741-0666

Dr. Mark Johnston Fritz, MD is an ophthalmologist in Joliet, IL specializing in ophthalmology (eye disease). He graduated from Northwestern University, Feinberg School of Medicine. Dr. Mark Johnston Fritz, MD is affiliated with St. Joseph's Hospital.

Office Locations

St. Joseph's Hospital

212 N Larkin Avenue
Joliet, IL 60435

(815) 741-0666

(815) 741-0649

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Noteworthy Medicare Patient Procedures Performed by Dr. Mark Johnston Fritz, MD in 2024

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

Top 25%

By Volume:

ophthalmic ultrasound

By Affordability:

comprehensive eye exam

eye exam

visual field test

In 2012, among providers in related specialties within Illinois, Dr. Mark Johnston Fritz, MD performed more ophthalmic ultrasound procedures for Medicare patients than 75% of them and he also had a list price for comprehensive eye exam, eye exam, and visual field test 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. Mark Johnston Fritz, MD treated as an ophthalmologist in Joliet, IL during 2012 were eye procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. Mark Johnston Fritz, MD for Medicare patients.

capsulotomy	11
eye procedures	3781
hospital care	14
inpatient care	14
laser treatment	11
ultrasound (sonogram)	129

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Mark Johnston Fritz, MD treated as an ophthalmologist in Joliet, IL during 2013 were eye procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. Mark Johnston Fritz, MD for Medicare patients.

capsulotomy	23
doctor visit	30
eye procedures	3655
hospital care	24
inpatient care	24
laser treatment	23
ultrasound (sonogram)	156

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Johnston Fritz, MD.

**Gender**
Male	543
Female	804

**Ethnicity**
Non-Hispanic White	1116
Black	116
Hispanic	77
Asian	24
Other	0
Native American	0

**Age**
From 65 to 74	524
From 75 to 84	474
85 and over	221
Less than 65	128

Conditions of Medicare patients treated by Dr. Mark Johnston Fritz, MD in 2013

Hypertension	73
High Cholesterol	65
Stroke	5
Ischemic Heart Disease	33
Depression	15
Chronic Kidney Disease	23
Asthma	7
Osteoperosis	11
Atrial Fibrilation	12
Heart Failure	18
Chronic Obstructive Pulmonary Disease	15
Diabetes	43
Dementia	11
Cancer	10

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Mark Johnston Fritz, MD treated as an ophthalmologist in Joliet, IL during 2014 were eye procedures, ultrasound (sonogram), capsulotomy and laser treatment.

Volume of procedures performed by Dr. Mark Johnston Fritz, MD for Medicare patients.

capsulotomy	28
eye procedures	3344
hospital care	14
inpatient care	14
laser treatment	28
ultrasound (sonogram)	116

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Johnston Fritz, MD.

**Gender**
Male	483
Female	738

**Ethnicity**
Non-Hispanic White	1017
Black	101
Hispanic	66
Asian	20
Other	0
Native American	0

**Age**
From 65 to 74	467
From 75 to 84	440
85 and over	191
Less than 65	123

Conditions of Medicare patients treated by Dr. Mark Johnston Fritz, MD in 2014

Hypertension	70
High Cholesterol	65
Stroke	5
Ischemic Heart Disease	34
Depression	15
Chronic Kidney Disease	25
Asthma	7
Osteoperosis	10
Atrial Fibrilation	13
Heart Failure	19
Chronic Obstructive Pulmonary Disease	15
Diabetes	44
Dementia	10
Cancer	9

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Mark Johnston Fritz, MD treated as an ophthalmologist in Joliet, IL during 2015 were eye procedures, ultrasound (sonogram), capsulotomy and laser treatment.

Volume of procedures performed by Dr. Mark Johnston Fritz, MD for Medicare patients.

capsulotomy	21
eye procedures	3236
hospital care	14
inpatient care	14
laser treatment	21
ultrasound (sonogram)	92

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Johnston Fritz, MD.

**Gender**
Male	974
Female	1460

**Ethnicity**
Non-Hispanic White	1990
Black	210
Hispanic	156
Asian	0
Other	42
Native American	0

**Age**
From 65 to 74	970
From 75 to 84	846
85 and over	378
Less than 65	240

Conditions of Medicare patients treated by Dr. Mark Johnston Fritz, MD in 2015

Hypertension	73
High Cholesterol	68
Stroke	6
Ischemic Heart Disease	35
Depression	15
Chronic Kidney Disease	27
Asthma	11
Osteoperosis	12
Atrial Fibrilation	12
Heart Failure	19
Chronic Obstructive Pulmonary Disease	16
Diabetes	42
Dementia	10
Cancer	10

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Mark Johnston Fritz, MD treated as an ophthalmologist in Joliet, IL during 2016 were eye procedures, ultrasound (sonogram), capsulotomy and laser treatment.

Volume of procedures performed by Dr. Mark Johnston Fritz, MD for Medicare patients.

capsulotomy	24
eye procedures	3257
laser treatment	24
ultrasound (sonogram)	98

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Johnston Fritz, MD.

**Gender**
Male	499
Female	736

**Ethnicity**
Non-Hispanic White	998
Black	123
Hispanic	76
Asian	0
Other	21
Native American	0

**Age**
From 65 to 74	499
From 75 to 84	435
85 and over	183
Less than 65	118

Conditions of Medicare patients treated by Dr. Mark Johnston Fritz, MD in 2016

Hypertension	73
High Cholesterol	66
Stroke	5
Ischemic Heart Disease	36
Depression	16
Chronic Kidney Disease	32
Asthma	17
Osteoperosis	12
Atrial Fibrilation	12
Heart Failure	21
Chronic Obstructive Pulmonary Disease	15
Diabetes	43
Dementia	10
Cancer	11

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Mark Johnston Fritz, MD treated as an ophthalmologist in Joliet, IL during 2017 were eye procedures, ultrasound (sonogram), capsulotomy and laser treatment.

Volume of procedures performed by Dr. Mark Johnston Fritz, MD for Medicare patients.

capsulotomy	19
eye procedures	3124
laser treatment	19
ultrasound (sonogram)	124

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Johnston Fritz, MD.

**Gender**
Male	454
Female	727

**Ethnicity**
Non-Hispanic White	971
Black	107
Hispanic	69
Asian	0
Other	21
Native American	0

**Age**
From 65 to 74	462
From 75 to 84	439
85 and over	174
Less than 65	106

Conditions of Medicare patients treated by Dr. Mark Johnston Fritz, MD in 2017

Hypertension	74
High Cholesterol	55
Stroke	6
Ischemic Heart Disease	35
Depression	16
Chronic Kidney Disease	34
Asthma	8
Osteoperosis	11
Atrial Fibrilation	13
Heart Failure	21
Chronic Obstructive Pulmonary Disease	15
Diabetes	42
Dementia	12
Cancer	11

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Mark Johnston Fritz, MD treated as an ophthalmologist in Joliet, IL during 2018 were eye procedures, ultrasound (sonogram), capsulotomy and laser treatment.

Volume of procedures performed by Dr. Mark Johnston Fritz, MD for Medicare patients.

capsulotomy	30
eye procedures	2954
laser treatment	30
ultrasound (sonogram)	134

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Johnston Fritz, MD.

**Gender**
Male	436
Female	683

**Ethnicity**
Non-Hispanic White	899
Black	99
Hispanic	83
Asian	0
Other	23
Native American	0

**Age**
From 65 to 74	435
From 75 to 84	431
85 and over	163
Less than 65	90

Conditions of Medicare patients treated by Dr. Mark Johnston Fritz, MD in 2018

Hypertension	72
High Cholesterol	69
Stroke	5
Ischemic Heart Disease	32
Depression	16
Chronic Kidney Disease	33
Asthma	6
Osteoperosis	12
Atrial Fibrilation	13
Heart Failure	19
Chronic Obstructive Pulmonary Disease	15
Diabetes	41
Dementia	11
Cancer	10

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Mark Johnston Fritz, MD treated as an ophthalmologist in Joliet, IL during 2019 were eye procedures, ultrasound (sonogram), capsulotomy and laser treatment.

Volume of procedures performed by Dr. Mark Johnston Fritz, MD for Medicare patients.

capsulotomy	26
eye procedures	2762
laser treatment	26
ultrasound (sonogram)	115

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Johnston Fritz, MD.

**Gender**
Male	419
Female	680

**Ethnicity**
Non-Hispanic White	886
Black	94
Hispanic	80
Asian	0
Other	22
Native American	0

**Age**
From 65 to 74	410
From 75 to 84	411
85 and over	180
Less than 65	98

Conditions of Medicare patients treated by Dr. Mark Johnston Fritz, MD in 2019

Hypertension	73
High Cholesterol	68
Stroke	5
Ischemic Heart Disease	31
Depression	18
Chronic Kidney Disease	35
Asthma	7
Osteoperosis	12
Atrial Fibrilation	13
Heart Failure	18
Chronic Obstructive Pulmonary Disease	16
Diabetes	40
Dementia	10
Cancer	10

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Mark Johnston Fritz, MD treated as an ophthalmologist in Joliet, IL during 2020 were eye procedures, ultrasound (sonogram), capsulotomy and laser treatment.

Volume of procedures performed by Dr. Mark Johnston Fritz, MD for Medicare patients.

capsulotomy	17
eye procedures	1938
laser treatment	17
ultrasound (sonogram)	69

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Johnston Fritz, MD.

**Gender**
Male	340
Female	547

**Ethnicity**
Non-Hispanic White	722
Black	83
Hispanic	52
Asian	11
Other	19
Native American	0

**Age**
From 65 to 74	348
From 75 to 84	340
85 and over	145
Less than 65	54

Conditions of Medicare patients treated by Dr. Mark Johnston Fritz, MD in 2020

Hypertension	70
High Cholesterol	64
Stroke	4
Ischemic Heart Disease	33
Depression	16
Chronic Kidney Disease	34
Asthma	6
Osteoperosis	9
Atrial Fibrilation	12
Heart Failure	17
Chronic Obstructive Pulmonary Disease	12
Diabetes	40
Dementia	10
Cancer	10

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Mark Johnston Fritz, MD treated as an ophthalmologist in Joliet, IL during 2021 were eye procedures, ultrasound (sonogram), capsulotomy and laser treatment.

Volume of procedures performed by Dr. Mark Johnston Fritz, MD for Medicare patients.

capsulotomy	23
eye procedures	2082
laser treatment	23
ultrasound (sonogram)	93

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Johnston Fritz, MD.

**Gender**
Male	340
Female	525

**Ethnicity**
Non-Hispanic White	694
Black	76
Hispanic	62
Asian	12
Other	21
Native American	0

**Age**
From 65 to 74	327
From 75 to 84	311
85 and over	151
Less than 65	76

Conditions of Medicare patients treated by Dr. Mark Johnston Fritz, MD in 2021

Hypertension	75
High Cholesterol	67
Stroke	5
Ischemic Heart Disease	34
Depression	18
Chronic Kidney Disease	35
Asthma	6
Osteoperosis	9
Atrial Fibrilation	14
Heart Failure	19
Chronic Obstructive Pulmonary Disease	12
Diabetes	40
Dementia	10
Cancer	11

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Mark Johnston Fritz, MD treated as an ophthalmologist in Joliet, IL during 2022 were eye procedures, ultrasound (sonogram), capsulotomy and laser treatment.

Volume of procedures performed by Dr. Mark Johnston Fritz, MD for Medicare patients.

capsulotomy	19
eye procedures	1926
laser treatment	19
ultrasound (sonogram)	94

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Johnston Fritz, MD.

**Gender**
Male	290
Female	498

**Ethnicity**
Non-Hispanic White	628
Black	63
Hispanic	60
Asian	11
Other	26
Native American	0

**Age**
From 65 to 74	314
From 75 to 84	285
85 and over	130
Less than 65	59

Conditions of Medicare patients treated by Dr. Mark Johnston Fritz, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	7
Ischemic Heart Disease	27
Depression	17
Chronic Kidney Disease	27
Asthma	9
Osteoperosis	14
Atrial Fibrilation	16
Heart Failure	15
Chronic Obstructive Pulmonary Disease	14
Diabetes	38
Dementia	6
Cancer	16

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Mark Johnston Fritz, MD treated as an ophthalmologist in Joliet, IL during 2023 were eye procedures and ultrasound (sonogram).

Volume of procedures performed by Dr. Mark Johnston Fritz, MD for Medicare patients.

eye procedures	1872
ultrasound (sonogram)	74

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Johnston Fritz, MD.

**Gender**
Male	294
Female	471

**Ethnicity**
Non-Hispanic White	626
Black	52
Hispanic	56
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	292
From 75 to 84	296
85 and over	118
Less than 65	59

Conditions of Medicare patients treated by Dr. Mark Johnston Fritz, MD in 2023

Hypertension	75
High Cholesterol	75
Stroke	7
Ischemic Heart Disease	28
Depression	19
Chronic Kidney Disease	28
Asthma	8
Osteoperosis	16
Atrial Fibrilation	16
Heart Failure	15
Chronic Obstructive Pulmonary Disease	15
Diabetes	39
Dementia	8
Cancer	15

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. Mark Johnston Fritz, MD treated as an ophthalmologist in Joliet, IL during 2024 were eye procedures and ultrasound (sonogram).

Volume of procedures performed by Dr. Mark Johnston Fritz, MD for Medicare patients.

eye procedures	1727
ultrasound (sonogram)	63

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Johnston Fritz, MD.

**Gender**
Male	280
Female	438

**Ethnicity**
Non-Hispanic White	577
Black	56
Hispanic	60
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	273
From 75 to 84	277
85 and over	112
Less than 65	56

Conditions of Medicare patients treated by Dr. Mark Johnston Fritz, MD in 2024

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	27
Depression	19
Chronic Kidney Disease	28
Asthma	8
Osteoperosis	16
Atrial Fibrilation	17
Heart Failure	18
Chronic Obstructive Pulmonary Disease	15
Diabetes	41
Dementia	8
Cancer	15

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. Mark Johnston Fritz, MD for Medicare patients.

The highest averages for the top procedures that Dr. Mark Johnston Fritz, MD treated as an ophthalmologist in Joliet, IL were eye procedures, ultrasound (sonogram), capsulotomy and laser treatment.

capsulotomy	21
doctor visit	30
eye procedures	2742
hospital care	16
inpatient care	16
laser treatment	21
ultrasound (sonogram)	104

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Mark Johnston Fritz, MD.

**Gender**
Female	639
Male	411

**Ethnicity**
Black / African American	90
Asian / Pacific Islander	6
Non-Hispanic White	855
Hispanic	69
Native American / Alaskan Native	0
Other	15

**Age**
85 and over	165
75 to 84	383
Less than 65	92
65 to 74	409

Average of Total of Conditions of Medicare patients treated by Dr. Mark Johnston Fritz, MD From 2012 - 2024

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

Hypertension	67
High Cholesterol	62
Stroke	5
Ischemic Heart Disease	29
Depression	15
Chronic Kidney Disease	27
Asthma	7
Osteoporosis	11
Heart Failure	16
Chronic Obstructive Pulmonary Disease	13
Diabetes	37
Atrial Fibrillation	12
Dementia	8
Cancer	10

Education & Training

Dr. Mark Johnston Fritz, MD graduated from Northwestern University, Feinberg School of Medicine. He completed residency at Medical College of Wisconsin Affiliated Hospitals. He has a state license in Illinois.

Medical School: Northwestern University, Feinberg School of Medicine

Residency: Medical College of Wisconsin Affiliated Hospitals

Licensed In: Illinois

Ratings & Reviews

Dr. Mark Johnston Fritz, MD has an exceptional overall rating with an average of 5.0 out of 5 stars based on 1 ratings. We collect ratings and reviews of Dr. Mark Johnston Fritz, MD from all over the web to help you find the right in Joliet, IL.

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General Payments

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

**Payments by Company**
Alcon Vision LLC	$14 Wavelight $14
Omeros Corporation	$12 Omidria $12
Johnson & Johnson Surgical Vision, Inc.	$11 Phacofragmentation Accessories $11

**Types of Payments**
Food and Beverage	$37

Biography

Dr. Mark Fritz specializes in ophthalmology (eye disease) and practices in Joliet, IL. He attended Northwestern University, Feinberg School of Medicine and subsequently trained at a hospital affiliated with Medical College of Wisconsin for residency. He is affiliated with St. Joseph's Hospital.

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Dr. Mark Johnston Fritz, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Mark Johnston Fritz, MD in 2024

By Volume:

By Affordability:

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. Mark Johnston Fritz, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Johnston Fritz, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Johnston Fritz, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Johnston Fritz, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Johnston Fritz, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Johnston Fritz, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Johnston Fritz, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Johnston Fritz, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Johnston Fritz, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Johnston Fritz, MD in 2022

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

2023 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Johnston Fritz, MD in 2023

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

2024 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Johnston Fritz, MD in 2024

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Average Medicare Patient Data From 2012 - 2024

Average of Total of Conditions of Medicare patients treated by Dr. Mark Johnston Fritz, MD From 2012 - 2024

Education & Training

Ratings & Reviews

General Payments

Biography

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