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Home > AZ Providers > Ophthalmologists

Dr. James John Koster, MD

Accepting New Patients

(Dr. James J. Koster, MD)

(5 Ratings)

Specializes in: Ophthalmology (Eye Disease)

University of Arizona College of Medicine

300 E Osborn Road Suite 100
Phoenix, AZ 85012

(480) 994-5012

Dr. James John Koster, MD is an ophthalmologist in Phoenix, AZ specializing in ophthalmology (eye disease). He graduated from University of Arizona College of Medicine.

Office Locations

300 E Osborn Road Suite 100
Phoenix, AZ 85012

(480) 994-5012

(480) 994-9479

open_in_new

3330 N 2nd Street Suite 600
Phoenix, AZ 85012

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Noteworthy Medicare Patient Procedures Performed by Dr. James John Koster, MD in 2024

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

Top 10%

By Volume:

comprehensive eye exam

In 2024, Dr. James John Koster, MD performed more comprehensive eye exam procedures for Medicare patients than 90% of providers in related specialties within Arizona.

Top 25%

By Affordability:

corneal topography

ophthalmic biometry

In 2012, Dr. James John Koster, MD had a list price for corneal topography, and ophthalmic biometry that was lower than the list prices billed to Medicare by 75% of providers in related specialties within Arizona. 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. James John Koster, MD treated as an ophthalmologist in Phoenix, AZ during 2012 were eye procedures, capsulotomy, laser treatment and lacrimal (tearing system) procedures.

Volume of procedures performed by Dr. James John Koster, MD for Medicare patients.

capsulotomy	65
doctor visit	332
eye procedures	2148
lacrimal (tearing system) procedures	21
laser treatment	65
ultrasound (sonogram)	21

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. James John Koster, MD treated as an ophthalmologist in Phoenix, AZ during 2013 were eye procedures, capsulotomy, laser treatment and lab tests.

Volume of procedures performed by Dr. James John Koster, MD for Medicare patients.

capsulotomy	98
doctor visit	248
eye procedures	2468
lab tests	65
lacrimal (tearing system) procedures	23
laser treatment	98
ultrasound (sonogram)	14

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. James John Koster, MD.

**Gender**
Male	477
Female	685

**Ethnicity**
Non-Hispanic White	1056
Black	17
Hispanic	56
Asian	0
Other	16
Native American	0

**Age**
From 65 to 74	540
From 75 to 84	421
85 and over	169
Less than 65	32

Conditions of Medicare patients treated by Dr. James John Koster, MD in 2013

Hypertension	59
High Cholesterol	53
Stroke	4
Ischemic Heart Disease	27
Depression	13
Chronic Kidney Disease	19
Asthma	6
Osteoperosis	9
Atrial Fibrilation	11
Heart Failure	8
Chronic Obstructive Pulmonary Disease	9
Diabetes	22
Dementia	5
Cancer	12

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. James John Koster, MD treated as an ophthalmologist in Phoenix, AZ during 2014 were eye procedures, lab tests, capsulotomy and laser treatment.

Volume of procedures performed by Dr. James John Koster, MD for Medicare patients.

capsulotomy	79
doctor visit	347
eye procedures	2290
lab tests	207
lacrimal (tearing system) procedures	30
laser treatment	79
ultrasound (sonogram)	21

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. James John Koster, MD.

**Gender**
Male	456
Female	681

**Ethnicity**
Non-Hispanic White	1029
Black	19
Hispanic	53
Asian	0
Other	20
Native American	0

**Age**
From 65 to 74	536
From 75 to 84	414
85 and over	158
Less than 65	29

Conditions of Medicare patients treated by Dr. James John Koster, MD in 2014

Hypertension	58
High Cholesterol	54
Stroke	3
Ischemic Heart Disease	28
Depression	13
Chronic Kidney Disease	20
Asthma	7
Osteoperosis	8
Atrial Fibrilation	12
Heart Failure	10
Chronic Obstructive Pulmonary Disease	9
Diabetes	23
Dementia	5
Cancer	11

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. James John Koster, MD treated as an ophthalmologist in Phoenix, AZ during 2015 were eye procedures, lab tests, capsulotomy and laser treatment.

Volume of procedures performed by Dr. James John Koster, MD for Medicare patients.

capsulotomy	71
doctor visit	174
eye procedures	2527
lab tests	120
lacrimal (tearing system) procedures	22
laser treatment	71
ultrasound (sonogram)	23

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. James John Koster, MD.

**Gender**
Male	1014
Female	1358

**Ethnicity**
Non-Hispanic White	2144
Black	44
Hispanic	112
Asian	0
Other	46
Native American	0

**Age**
From 65 to 74	1182
From 75 to 84	842
85 and over	298
Less than 65	50

Conditions of Medicare patients treated by Dr. James John Koster, MD in 2015

Hypertension	56
High Cholesterol	54
Stroke	4
Ischemic Heart Disease	27
Depression	14
Chronic Kidney Disease	21
Asthma	10
Osteoperosis	10
Atrial Fibrilation	9
Heart Failure	9
Chronic Obstructive Pulmonary Disease	10
Diabetes	22
Dementia	4
Cancer	12

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. James John Koster, MD treated as an ophthalmologist in Phoenix, AZ during 2016 were eye procedures, capsulotomy, laser treatment and ultrasound (sonogram).

Volume of procedures performed by Dr. James John Koster, MD for Medicare patients.

capsulotomy	65
doctor visit	185
eye procedures	2627
laser treatment	65
ultrasound (sonogram)	25

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. James John Koster, MD.

**Gender**
Male	497
Female	743

**Ethnicity**
Non-Hispanic White	1107
Black	24
Hispanic	64
Asian	0
Other	22
Native American	0

**Age**
From 65 to 74	612
From 75 to 84	434
85 and over	159
Less than 65	35

Conditions of Medicare patients treated by Dr. James John Koster, MD in 2016

Hypertension	58
High Cholesterol	51
Stroke	4
Ischemic Heart Disease	28
Depression	14
Chronic Kidney Disease	23
Asthma	14
Osteoperosis	10
Atrial Fibrilation	10
Heart Failure	11
Chronic Obstructive Pulmonary Disease	10
Diabetes	21
Dementia	6
Cancer	12

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. James John Koster, MD treated as an ophthalmologist in Phoenix, AZ during 2017 were eye procedures, capsulotomy, laser treatment and ultrasound (sonogram).

Volume of procedures performed by Dr. James John Koster, MD for Medicare patients.

capsulotomy	103
doctor visit	202
eye procedures	2873
laser treatment	103
ultrasound (sonogram)	15

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. James John Koster, MD.

**Gender**
Male	493
Female	730

**Ethnicity**
Non-Hispanic White	1114
Black	27
Hispanic	37
Asian	22
Other	0
Native American	0

**Age**
From 65 to 74	599
From 75 to 84	449
85 and over	145
Less than 65	30

Conditions of Medicare patients treated by Dr. James John Koster, MD in 2017

Hypertension	58
High Cholesterol	51
Stroke	4
Ischemic Heart Disease	27
Depression	14
Chronic Kidney Disease	24
Asthma	7
Osteoperosis	10
Atrial Fibrilation	10
Heart Failure	11
Chronic Obstructive Pulmonary Disease	10
Diabetes	20
Dementia	5
Cancer	12

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. James John Koster, MD treated as an ophthalmologist in Phoenix, AZ during 2018 were eye procedures, capsulotomy, laser treatment and ultrasound (sonogram).

Volume of procedures performed by Dr. James John Koster, MD for Medicare patients.

capsulotomy	94
doctor visit	214
eye procedures	3060
laser treatment	94
ultrasound (sonogram)	35

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. James John Koster, MD.

**Gender**
Male	549
Female	789

**Ethnicity**
Non-Hispanic White	1204
Black	0
Hispanic	49
Asian	26
Other	32
Native American	0

**Age**
From 65 to 74	649
From 75 to 84	506
85 and over	168
Less than 65	15

Conditions of Medicare patients treated by Dr. James John Koster, MD in 2018

Hypertension	55
High Cholesterol	56
Stroke	4
Ischemic Heart Disease	26
Depression	14
Chronic Kidney Disease	23
Asthma	7
Osteoperosis	10
Atrial Fibrilation	11
Heart Failure	10
Chronic Obstructive Pulmonary Disease	10
Diabetes	19
Dementia	6
Cancer	12

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. James John Koster, MD treated as an ophthalmologist in Phoenix, AZ during 2019 were eye procedures, capsulotomy, laser treatment and ultrasound (sonogram).

Volume of procedures performed by Dr. James John Koster, MD for Medicare patients.

capsulotomy	95
doctor visit	133
eye procedures	2950
laser treatment	95
ultrasound (sonogram)	26

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. James John Koster, MD.

**Gender**
Male	525
Female	792

**Ethnicity**
Non-Hispanic White	1188
Black	0
Hispanic	33
Asian	27
Other	45
Native American	0

**Age**
From 65 to 74	628
From 75 to 84	531
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. James John Koster, MD in 2019

Hypertension	57
High Cholesterol	57
Stroke	4
Ischemic Heart Disease	28
Depression	16
Chronic Kidney Disease	25
Asthma	7
Osteoperosis	11
Atrial Fibrilation	10
Heart Failure	10
Chronic Obstructive Pulmonary Disease	9
Diabetes	20
Dementia	5
Cancer	12

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. James John Koster, MD treated as an ophthalmologist in Phoenix, AZ during 2020 were eye procedures, capsulotomy, laser treatment and ultrasound (sonogram).

Volume of procedures performed by Dr. James John Koster, MD for Medicare patients.

capsulotomy	88
doctor visit	159
eye procedures	2491
laser treatment	88
ultrasound (sonogram)	26

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. James John Koster, MD.

**Gender**
Male	476
Female	693

**Ethnicity**
Non-Hispanic White	1055
Black	0
Hispanic	38
Asian	20
Other	36
Native American	0

**Age**
From 65 to 74	549
From 75 to 84	489
85 and over	120
Less than 65	11

Conditions of Medicare patients treated by Dr. James John Koster, MD in 2020

Hypertension	55
High Cholesterol	57
Stroke	3
Ischemic Heart Disease	28
Depression	13
Chronic Kidney Disease	26
Asthma	7
Osteoperosis	10
Atrial Fibrilation	9
Heart Failure	10
Chronic Obstructive Pulmonary Disease	8
Diabetes	21
Dementia	5
Cancer	12

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. James John Koster, MD treated as an ophthalmologist in Phoenix, AZ during 2021 were eye procedures, capsulotomy, laser treatment and ultrasound (sonogram).

Volume of procedures performed by Dr. James John Koster, MD for Medicare patients.

capsulotomy	105
doctor visit	212
eye procedures	2850
laser treatment	105
ultrasound (sonogram)	22

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. James John Koster, MD.

**Gender**
Male	518
Female	781

**Ethnicity**
Non-Hispanic White	1159
Black	0
Hispanic	55
Asian	23
Other	47
Native American	0

**Age**
From 65 to 74	593
From 75 to 84	561
85 and over	133
Less than 65	12

Conditions of Medicare patients treated by Dr. James John Koster, MD in 2021

Hypertension	55
High Cholesterol	61
Stroke	3
Ischemic Heart Disease	27
Depression	14
Chronic Kidney Disease	25
Asthma	8
Osteoperosis	12
Atrial Fibrilation	9
Heart Failure	9
Chronic Obstructive Pulmonary Disease	7
Diabetes	21
Dementia	5
Cancer	13

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. James John Koster, MD treated as an ophthalmologist in Phoenix, AZ during 2022 were eye procedures, capsulotomy, laser treatment and ultrasound (sonogram).

Volume of procedures performed by Dr. James John Koster, MD for Medicare patients.

capsulotomy	119
doctor visit	190
eye procedures	2797
laser treatment	119
ultrasound (sonogram)	27

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. James John Koster, MD.

**Gender**
Male	524
Female	763

**Ethnicity**
Non-Hispanic White	1150
Black	0
Hispanic	48
Asian	26
Other	49
Native American	0

**Age**
From 65 to 74	540
From 75 to 84	586
85 and over	148
Less than 65	13

Conditions of Medicare patients treated by Dr. James John Koster, MD in 2022

Hypertension	64
High Cholesterol	75
Stroke	5
Ischemic Heart Disease	22
Depression	14
Chronic Kidney Disease	19
Asthma	10
Osteoperosis	18
Atrial Fibrilation	15
Heart Failure	8
Chronic Obstructive Pulmonary Disease	11
Diabetes	19
Dementia	3
Cancer	18

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. James John Koster, MD treated as an ophthalmologist in Phoenix, AZ during 2023 were eye procedures, capsulotomy, laser treatment and ultrasound (sonogram).

Volume of procedures performed by Dr. James John Koster, MD for Medicare patients.

capsulotomy	121
doctor visit	330
eye procedures	2786
laser treatment	121
ultrasound (sonogram)	35

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. James John Koster, MD.

**Gender**
Male	508
Female	775

**Ethnicity**
Non-Hispanic White	1141
Black	0
Hispanic	51
Asian	23
Other	52
Native American	0

**Age**
From 65 to 74	534
From 75 to 84	601
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. James John Koster, MD in 2023

Hypertension	63
High Cholesterol	75
Stroke	6
Ischemic Heart Disease	23
Depression	13
Chronic Kidney Disease	21
Asthma	10
Osteoperosis	18
Atrial Fibrilation	14
Heart Failure	9
Chronic Obstructive Pulmonary Disease	10
Diabetes	18
Dementia	3
Cancer	18

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. James John Koster, MD treated as an ophthalmologist in Phoenix, AZ during 2024 were eye procedures, capsulotomy, laser treatment and ultrasound (sonogram).

Volume of procedures performed by Dr. James John Koster, MD for Medicare patients.

capsulotomy	113
doctor visit	371
eye procedures	2787
laser treatment	113
ultrasound (sonogram)	27

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. James John Koster, MD.

**Gender**
Male	486
Female	795

**Ethnicity**
Non-Hispanic White	1147
Black	0
Hispanic	46
Asian	19
Other	56
Native American	0

**Age**
From 65 to 74	501
From 75 to 84	644
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. James John Koster, MD in 2024

Hypertension	63
High Cholesterol	75
Stroke	6
Ischemic Heart Disease	25
Depression	12
Chronic Kidney Disease	22
Asthma	11
Osteoperosis	21
Atrial Fibrilation	15
Heart Failure	9
Chronic Obstructive Pulmonary Disease	11
Diabetes	19
Dementia	4
Cancer	19

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. James John Koster, MD for Medicare patients.

The highest averages for the top procedures that Dr. James John Koster, MD treated as an ophthalmologist in Phoenix, AZ were eye procedures, lab tests, capsulotomy and laser treatment.

capsulotomy	93
doctor visit	238
eye procedures	2665
lab tests	130
lacrimal (tearing system) procedures	24
laser treatment	93
ultrasound (sonogram)	24

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. James John Koster, MD.

**Gender**
Female	737
Male	501

**Ethnicity**
Black / African American	10
Asian / Pacific Islander	14
Non-Hispanic White	1114
Hispanic	49
Native American / Alaskan Native	0
Other	32

**Age**
85 and over	115
75 to 84	498
Less than 65	17
65 to 74	574

Average of Total of Conditions of Medicare patients treated by Dr. James John Koster, MD From 2012 - 2024

The highest averages of the most common conditions of Medicare patients that Dr. James John Koster, MD treated were high cholesterol, hypertension, ischemic heart disease and chronic kidney disease.

Hypertension	53
High Cholesterol	55
Stroke	3
Ischemic Heart Disease	24
Depression	12
Chronic Kidney Disease	20
Asthma	8
Osteoporosis	11
Heart Failure	8
Chronic Obstructive Pulmonary Disease	8
Diabetes	18
Atrial Fibrillation	10
Cancer	12
Dementia	4

Education & Training

Dr. James John Koster, MD graduated from University of Arizona College of Medicine. He completed residency at Illinois Eye and Ear Infirmary. He has a state license in Arizona.

Medical School: University of Arizona College of Medicine

Residency: Illinois Eye and Ear Infirmary

Licensed In: Arizona

Ratings & Reviews

Dr. James John Koster, MD has a good overall rating with an average of 3.4 out of 5 stars based on 5 ratings. We collect ratings and reviews of Dr. James John Koster, MD from all over the web to help you find the right in Phoenix, AZ.

3.4

Overall Rating

(5 Ratings)

Leave a Review

General Payments

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

**Payments by Company**
GLAUKOS CORPORATION	$220 ISTENT TRABECULAR MICRO-BYPASS STENT SYSTEM $120	iStent inject W $100
Shire North American Group Inc	$206 XIIDRA $185	$21
Allergan Inc.	$181 LUMIGAN $92	RESTASIS $89
LENSAR, Inc.	$161 LENSAR LASER SYSTEM $161
Lumenis BE inc	$136 optilight $136
Other	$976 LUMIGAN $135	Tecnis IOL $117	Cataract Equipment $101	XDEMVY $85	PROLENSA $81	Other $457

**Types of Payments**
Food and Beverage	$1,859
Entertainment	$21

Biography

Dr. James Koster is a specialist in ophthalmology (eye disease) in Phoenix, AZ. Dr. Koster attended the University of Arizona College of Medicine for medical school and subsequently trained at Illinois Eye and Ear Infirmary for residency. His patients gave him an average rating of 3.5 stars (out of 5). He is professionally affiliated with Dignity Health. According to Dignity Health, Dr. Koster is currently accepting new patients at his office in Phoenix, AZ.

Select Year:

Dr. James John Koster, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. James John Koster, 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. James John Koster, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. James John Koster, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. James John Koster, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. James John Koster, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. James John Koster, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. James John Koster, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. James John Koster, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. James John Koster, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. James John Koster, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. James John Koster, MD in 2022

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

2023 Medicare Patient Data

Conditions of Medicare patients treated by Dr. James John Koster, MD in 2023

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

2024 Medicare Patient Data

Conditions of Medicare patients treated by Dr. James John Koster, 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. James John Koster, MD From 2012 - 2024

Education & Training

Ratings & Reviews

General Payments

Biography

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