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Dr. John William Karth, MD

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Specializes in: Vitreoretinal Diseases (Retina and Vitreous)

Johns Hopkins University School of Medicine

1550 Oak Street Suite #7
Eugene, OR 97401

(541) 687-1927

Dr. John William Karth, MD is a retina specialist in Eugene, OR specializing in vitreoretinal diseases (retina and vitreous). He graduated from Johns Hopkins University School of Medicine. Dr. John William Karth, MD is affiliated with Sacred Heart Hospital.

Office Locations

1550 Oak Street Suite #7
Eugene, OR 97401

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Noteworthy Medicare Patient Procedures Performed by Dr. John William Karth, MD in 2023

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

Top 5%

By Volume:

eye procedures

intravitreal drug injection

SCODI of the posterior segment

By Affordability:

eye injection

eye tests

fundus photography

intraocular injection

intravitreal drug injection

intravitreal injection

scanning computerized ophthalmic diagnostic imaging

SCODI of the posterior segment

vitrectomy with membrane peel

In 2023, among providers in related specialties within Oregon, Dr. John William Karth, MD performed more eye procedures, intravitreal drug injection, and SCODI of the posterior segment (SCODI-P) procedures for Medicare patients than 95% of them and he also had a list price for eye injection, eye tests, fundus photography, intraocular injection, intravitreal drug injection, intravitreal injection, scanning computerized ophthalmic diagnostic imaging (SCODI), SCODI of the posterior segment (SCODI-P), and vitrectomy with membrane peel that was lower than the list prices billed to Medicare by 95% 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.

Top 10%

By Affordability:

eye exam

intermediate eye exam

In 2023, Dr. John William Karth, MD had a list price for eye exam, and intermediate eye exam that was lower than the list prices billed to Medicare by 90% of providers in related specialties within Oregon. 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 Affordability:

B-scan

comprehensive eye exam

diagnostic B-scan

diagnostic imaging

ophthalmic ultrasound

pars plana vitrectomy

retinal detachment repair

retinal detachment repair with vitrectomy

vitrectomy

In 2012, Dr. John William Karth, MD had a list price for B-scan, comprehensive eye exam, diagnostic B-scan, diagnostic imaging, ophthalmic ultrasound, pars plana vitrectomy (PPV), retinal detachment repair, retinal detachment repair with vitrectomy, and vitrectomy (vitreous surgery) that was lower than the list prices billed to Medicare by 75% of providers in related specialties within Oregon. 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. John William Karth, MD treated as a retina specialist in Eugene, OR during 2012 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. John William Karth, MD for Medicare patients.

diagnostic imaging	28
doctor visit	3005
eye procedures	4255
injections	1325
photocoagulation	13
ultrasound (sonogram)	28

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. John William Karth, MD treated as a retina specialist in Eugene, OR during 2013 were eye procedures, injections, aspiration and photocoagulation.

Volume of procedures performed by Dr. John William Karth, MD for Medicare patients.

aspiration	81
diagnostic imaging	28
doctor visit	380
eye procedures	8188
injections	1629
photocoagulation	48
ultrasound (sonogram)	28

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. John William Karth, MD.

**Gender**
Male	430
Female	578

**Ethnicity**
Non-Hispanic White	958
Black	0
Hispanic	21
Asian	0
Other	0
Native American	15

**Age**
From 65 to 74	322
From 75 to 84	362
85 and over	258
Less than 65	66

Conditions of Medicare patients treated by Dr. John William Karth, MD in 2013

Hypertension	64
High Cholesterol	47
Stroke	5
Ischemic Heart Disease	28
Depression	18
Chronic Kidney Disease	26
Asthma	5
Osteoperosis	8
Atrial Fibrilation	13
Heart Failure	21
Chronic Obstructive Pulmonary Disease	14
Diabetes	39
Dementia	9
Cancer	9

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. John William Karth, MD treated as a retina specialist in Eugene, OR during 2014 were eye procedures, injections, aspiration and photocoagulation.

Volume of procedures performed by Dr. John William Karth, MD for Medicare patients.

aspiration	282
diagnostic imaging	30
doctor visit	443
eye procedures	9051
injections	1896
laser treatment	14
photocoagulation	74
ultrasound (sonogram)	30

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. John William Karth, MD.

**Gender**
Male	426
Female	626

**Ethnicity**
Non-Hispanic White	992
Black	0
Hispanic	21
Asian	0
Other	0
Native American	17

**Age**
From 65 to 74	381
From 75 to 84	341
85 and over	245
Less than 65	85

Conditions of Medicare patients treated by Dr. John William Karth, MD in 2014

Hypertension	64
High Cholesterol	47
Stroke	5
Ischemic Heart Disease	27
Depression	19
Chronic Kidney Disease	26
Asthma	5
Osteoperosis	8
Atrial Fibrilation	14
Heart Failure	21
Chronic Obstructive Pulmonary Disease	13
Diabetes	38
Dementia	9
Cancer	8

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. John William Karth, MD treated as a retina specialist in Eugene, OR during 2015 were eye procedures, injections, photocoagulation and diagnostic imaging.

Volume of procedures performed by Dr. John William Karth, MD for Medicare patients.

diagnostic imaging	23
doctor visit	1416
eye procedures	7525
injections	1946
photocoagulation	109
prophylaxis (preventive treatment)	14
ultrasound (sonogram)	23

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. John William Karth, MD.

**Gender**
Male	814
Female	1252

**Ethnicity**
Non-Hispanic White	1954
Black	0
Hispanic	46
Asian	0
Other	0
Native American	34

**Age**
From 65 to 74	748
From 75 to 84	670
85 and over	486
Less than 65	162

Conditions of Medicare patients treated by Dr. John William Karth, MD in 2015

Hypertension	63
High Cholesterol	43
Stroke	4
Ischemic Heart Disease	27
Depression	19
Chronic Kidney Disease	31
Asthma	9
Osteoperosis	8
Atrial Fibrilation	14
Heart Failure	21
Chronic Obstructive Pulmonary Disease	13
Diabetes	38
Dementia	10
Cancer	8

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. John William Karth, MD treated as a retina specialist in Eugene, OR during 2016 were eye procedures, injections, photocoagulation and diagnostic imaging.

Volume of procedures performed by Dr. John William Karth, MD for Medicare patients.

diagnostic imaging	31
doctor visit	1034
eye procedures	8179
injections	2344
photocoagulation	130
prophylaxis (preventive treatment)	13
ultrasound (sonogram)	31

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. John William Karth, MD.

**Gender**
Male	415
Female	651

**Ethnicity**
Non-Hispanic White	1012
Black	0
Hispanic	21
Asian	0
Other	12
Native American	0

**Age**
From 65 to 74	397
From 75 to 84	330
85 and over	243
Less than 65	96

Conditions of Medicare patients treated by Dr. John William Karth, MD in 2016

Hypertension	65
High Cholesterol	47
Stroke	4
Ischemic Heart Disease	27
Depression	20
Chronic Kidney Disease	34
Asthma	17
Osteoperosis	8
Atrial Fibrilation	14
Heart Failure	22
Chronic Obstructive Pulmonary Disease	14
Diabetes	40
Dementia	11
Cancer	9

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. John William Karth, MD treated as a retina specialist in Eugene, OR during 2017 were eye procedures, injections, photocoagulation and diagnostic imaging.

Volume of procedures performed by Dr. John William Karth, MD for Medicare patients.

diagnostic imaging	44
doctor visit	755
eye procedures	9148
injections	2423
photocoagulation	62
ultrasound (sonogram)	44

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. John William Karth, MD.

**Gender**
Male	447
Female	618

**Ethnicity**
Non-Hispanic White	1009
Black	0
Hispanic	23
Asian	0
Other	14
Native American	0

**Age**
From 65 to 74	387
From 75 to 84	342
85 and over	249
Less than 65	87

Conditions of Medicare patients treated by Dr. John William Karth, MD in 2017

Hypertension	66
High Cholesterol	44
Stroke	5
Ischemic Heart Disease	28
Depression	18
Chronic Kidney Disease	34
Asthma	5
Osteoperosis	8
Atrial Fibrilation	14
Heart Failure	22
Chronic Obstructive Pulmonary Disease	13
Diabetes	38
Dementia	11
Cancer	8

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. John William Karth, MD treated as a retina specialist in Eugene, OR during 2018 were eye procedures, injections, photocoagulation and diagnostic imaging.

Volume of procedures performed by Dr. John William Karth, MD for Medicare patients.

diagnostic imaging	26
doctor visit	1398
eye procedures	8740
injections	2580
photocoagulation	46
ultrasound (sonogram)	26

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. John William Karth, MD.

**Gender**
Male	416
Female	611

**Ethnicity**
Non-Hispanic White	976
Black	0
Hispanic	21
Asian	0
Other	11
Native American	0

**Age**
From 65 to 74	365
From 75 to 84	345
85 and over	239
Less than 65	78

Conditions of Medicare patients treated by Dr. John William Karth, MD in 2018

Hypertension	69
High Cholesterol	49
Stroke	6
Ischemic Heart Disease	28
Depression	20
Chronic Kidney Disease	37
Asthma	5
Osteoperosis	9
Atrial Fibrilation	15
Heart Failure	22
Chronic Obstructive Pulmonary Disease	14
Diabetes	37
Dementia	10
Cancer	8

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. John William Karth, MD treated as a retina specialist in Eugene, OR during 2019 were eye procedures, injections, photocoagulation and diagnostic imaging.

Volume of procedures performed by Dr. John William Karth, MD for Medicare patients.

diagnostic imaging	13
doctor visit	1462
eye procedures	9079
injections	2573
photocoagulation	78
ultrasound (sonogram)	13

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. John William Karth, MD.

**Gender**
Male	435
Female	617

**Ethnicity**
Non-Hispanic White	991
Black	0
Hispanic	26
Asian	0
Other	12
Native American	0

**Age**
From 65 to 74	389
From 75 to 84	339
85 and over	242
Less than 65	82

Conditions of Medicare patients treated by Dr. John William Karth, MD in 2019

Hypertension	67
High Cholesterol	49
Stroke	4
Ischemic Heart Disease	27
Depression	20
Chronic Kidney Disease	37
Asthma	6
Osteoperosis	9
Atrial Fibrilation	13
Heart Failure	21
Chronic Obstructive Pulmonary Disease	14
Diabetes	35
Dementia	10
Cancer	8

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. John William Karth, MD treated as a retina specialist in Eugene, OR during 2020 were eye procedures and injections.

Volume of procedures performed by Dr. John William Karth, MD for Medicare patients.

doctor visit	1664
eye procedures	7654
injections	2794

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. John William Karth, MD.

**Gender**
Male	402
Female	593

**Ethnicity**
Non-Hispanic White	934
Black	0
Hispanic	21
Asian	0
Other	15
Native American	11

**Age**
From 65 to 74	342
From 75 to 84	328
85 and over	253
Less than 65	72

Conditions of Medicare patients treated by Dr. John William Karth, MD in 2020

Hypertension	66
High Cholesterol	47
Stroke	5
Ischemic Heart Disease	28
Depression	20
Chronic Kidney Disease	36
Asthma	5
Osteoperosis	9
Atrial Fibrilation	14
Heart Failure	20
Chronic Obstructive Pulmonary Disease	10
Diabetes	34
Dementia	10
Cancer	8

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. John William Karth, MD treated as a retina specialist in Eugene, OR during 2021 were eye procedures and injections.

Volume of procedures performed by Dr. John William Karth, MD for Medicare patients.

doctor visit	2434
eye procedures	6128
injections	2575

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. John William Karth, MD.

**Gender**
Male	431
Female	609

**Ethnicity**
Non-Hispanic White	992
Black	0
Hispanic	19
Asian	0
Other	12
Native American	0

**Age**
From 65 to 74	395
From 75 to 84	359
85 and over	238
Less than 65	48

Conditions of Medicare patients treated by Dr. John William Karth, MD in 2021

Hypertension	63
High Cholesterol	49
Stroke	4
Ischemic Heart Disease	29
Depression	21
Chronic Kidney Disease	37
Asthma	6
Osteoperosis	9
Atrial Fibrilation	14
Heart Failure	20
Chronic Obstructive Pulmonary Disease	12
Diabetes	32
Dementia	10
Cancer	10

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. John William Karth, MD treated as a retina specialist in Eugene, OR during 2022 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. John William Karth, MD for Medicare patients.

diagnostic imaging	18
doctor visit	2356
eye procedures	6311
injections	2595
ultrasound (sonogram)	18

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. John William Karth, MD.

**Gender**
Male	434
Female	632

**Ethnicity**
Non-Hispanic White	999
Black	0
Hispanic	29
Asian	0
Other	19
Native American	0

**Age**
From 65 to 74	378
From 75 to 84	389
85 and over	241
Less than 65	58

Conditions of Medicare patients treated by Dr. John William Karth, MD in 2022

Hypertension	74
High Cholesterol	67
Stroke	7
Ischemic Heart Disease	22
Depression	18
Chronic Kidney Disease	29
Asthma	9
Osteoperosis	12
Atrial Fibrilation	20
Heart Failure	18
Chronic Obstructive Pulmonary Disease	14
Diabetes	33
Dementia	6
Cancer	12

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. John William Karth, MD for Medicare patients.

The highest averages for the top procedures that Dr. John William Karth, MD treated as a retina specialist in Eugene, OR were eye procedures, injections, aspiration and photocoagulation.

aspiration	181
diagnostic imaging	26
doctor visit	1486
eye procedures	7659
injections	2243
laser treatment	14
photocoagulation	70
prophylaxis (preventive treatment)	13
ultrasound (sonogram)	26

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. John William Karth, MD.

**Gender**
Female	617
Male	422

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	983
Native American / Alaskan Native	7
Hispanic	22
Other	8

**Age**
85 and over	244
75 to 84	345
Less than 65	75
65 to 74	373

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

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

Hypertension	60
High Cholesterol	44
Stroke	4
Ischemic Heart Disease	24
Depression	17
Chronic Kidney Disease	29
Asthma	6
Osteoporosis	8
Heart Failure	18
Chronic Obstructive Pulmonary Disease	11
Diabetes	33
Atrial Fibrillation	13
Dementia	8
Cancer	8

Education & Training

Dr. John William Karth, MD graduated from Johns Hopkins University School of Medicine. He completed residency at University of Rochester Medical Center. He has a state license in Oregon.

Medical School: Johns Hopkins University School of Medicine

Residency: University of Rochester Medical Center

Licensed In: Oregon

Affiliations & Hospitals

Dr. John William Karth, MD is associated with these hospitals and organizations:

Sacred Heart Hospital

Ratings & Reviews

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General Payments

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

**Payments by Company**
Regeneron Healthcare Solutions, Inc.	$565 Eylea $544	EYLEA HD $22
Alcon Vision LLC	$411 Centurion $264	CLAREON $106	AcrySof $42
Novartis Pharmaceuticals Corporation	$316 BEOVU $274	brolucizumab $43
Genentech USA, Inc.	$310 LUCENTIS $164	VABYSMO $122	$25
AbbVie Inc.	$195 OZURDEX $195
Other	$817 EYLEA (aflibercept) Injection $125	VitreoretinalEquipment $105	OZURDEX $99	Humira $83	YUTIQ $79	Other $326

**Types of Payments**
Food and Beverage	$2,616

Biography

Dr. John Karth is a specialist in vitreoretinal diseases (retina and vitreous). He works in Eugene, OR. Dr. Karth is professionally affiliated with Sacred Heart Hospital. After completing medical school at Johns Hopkins University School of Medicine, he performed his residency at the University of Rochester Medical Center.

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Dr. John William Karth, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. John William Karth, MD in 2023

By Volume:

By Affordability:

By Affordability:

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. John William Karth, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John William Karth, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John William Karth, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John William Karth, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John William Karth, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John William Karth, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John William Karth, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John William Karth, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John William Karth, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John William Karth, 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 William Karth, MD From 2012 - 2022

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Biography

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