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Dr. John O. Schrader, MD

(No ratings)

Specializes in: Adult Cardiology

707 S Monroe Street
Enid, OK 73701

(580) 616-7630

Dr. John O. Schrader, MD is a cardiologist in Enid, OK specializing in adult cardiology.

Office Locations

707 S Monroe Street
Enid, OK 73701

(580) 616-7630

(580) 237-7516

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Noteworthy Medicare Patient Procedures Performed by Dr. John O. Schrader, MD in 2023

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

Top 5%

By Volume:

carotid duplex ultrasound

In 2023, Dr. John O. Schrader, MD performed more carotid duplex ultrasound procedures for Medicare patients than 95% of providers in related specialties within Oklahoma.

Top 10%

By Volume:

cardiac imaging

Doppler echocardiography

ultrasound

vascular procedures

In 2023, Dr. John O. Schrader, MD performed more cardiac imaging, Doppler echocardiography, ultrasound (sonogram), and vascular procedures procedures for Medicare patients than 90% of providers in related specialties within Oklahoma.

Top 25%

By Volume:

blood tests

coronary angiogram

Holter monitoring

prothrombin time test

vascular ultrasound

By Affordability:

blood tests

cardioversion

coagulation tests

elective cardioversion

elective external cardioversion

external cardioversion

lab tests

liver function tests

prothrombin time test

In 2012, among providers in related specialties within Oklahoma, Dr. John O. Schrader, MD performed more blood tests, coronary angiogram, Holter monitoring, prothrombin time (PT) test, and vascular ultrasound procedures for Medicare patients than 75% of them and he also had a list price for blood tests, cardioversion, coagulation (blood clotting) tests, elective cardioversion, elective external cardioversion, external cardioversion, lab tests, liver function tests (LFTs), and prothrombin time (PT) 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. John O. Schrader, MD treated as a cardiologist in Enid, OK during 2012 were cardiac procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. John O. Schrader, MD for Medicare patients.

cardiac procedures	752
cardioversion	19
catheterization	162
diagnostic procedures	125
doctor visit	974
hospital care	515
inpatient care	515
minimally invasive procedures	180
stent placement (stenting)	37
stress testing	44
ultrasound (sonogram)	660
vascular procedures	239

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. John O. Schrader, MD treated as a cardiologist in Enid, OK during 2013 were cardiac procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. John O. Schrader, MD for Medicare patients.

angioplasty	54
cardiac procedures	675
cardioversion	22
catheterization	151
diagnostic procedures	70
doctor visit	1159
hospital care	333
inpatient care	333
minimally invasive procedures	174
stent placement (stenting)	54
stress testing	54
ultrasound (sonogram)	558
vascular procedures	169

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. John O. Schrader, MD.

**Gender**
Male	444
Female	484

**Ethnicity**
Non-Hispanic White	880
Black	12
Hispanic	0
Asian	0
Other	0
Native American	14

**Age**
From 65 to 74	342
From 75 to 84	360
85 and over	148
Less than 65	78

Conditions of Medicare patients treated by Dr. John O. Schrader, MD in 2013

Hypertension	75
High Cholesterol	75
Stroke	11
Ischemic Heart Disease	75
Depression	21
Chronic Kidney Disease	34
Asthma	10
Osteoperosis	8
Atrial Fibrilation	28
Heart Failure	42
Chronic Obstructive Pulmonary Disease	29
Diabetes	36
Dementia	14
Cancer	13

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. John O. Schrader, MD treated as a cardiologist in Enid, OK during 2014 were cardiac procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. John O. Schrader, MD for Medicare patients.

angioplasty	42
cardiac procedures	680
cardioversion	22
catheterization	144
diagnostic procedures	81
doctor visit	1052
hospital care	339
inpatient care	325
minimally invasive procedures	167
outpatient care	14
stent placement (stenting)	42
stress testing	34
ultrasound (sonogram)	567
vascular procedures	157

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. John O. Schrader, MD.

**Gender**
Male	510
Female	598

**Ethnicity**
Non-Hispanic White	1052
Black	14
Hispanic	20
Asian	0
Other	0
Native American	11

**Age**
From 65 to 74	398
From 75 to 84	397
85 and over	187
Less than 65	126

Conditions of Medicare patients treated by Dr. John O. Schrader, MD in 2014

Hypertension	75
High Cholesterol	75
Stroke	12
Ischemic Heart Disease	73
Depression	27
Chronic Kidney Disease	37
Asthma	13
Osteoperosis	7
Atrial Fibrilation	26
Heart Failure	42
Chronic Obstructive Pulmonary Disease	33
Diabetes	37
Dementia	16
Cancer	13

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. John O. Schrader, MD treated as a cardiologist in Enid, OK during 2015 were cardiac procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. John O. Schrader, MD for Medicare patients.

angioplasty	74
cardiac procedures	795
cardioversion	21
catheterization	210
diagnostic procedures	99
doctor visit	1216
hospital care	341
implant surgery	23
inpatient care	313
minimally invasive procedures	257
outpatient care	28
stent placement (stenting)	74
stress testing	42
ultrasound (sonogram)	585
vascular procedures	176

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. John O. Schrader, MD.

**Gender**
Male	994
Female	1154

**Ethnicity**
Non-Hispanic White	2048
Black	26
Hispanic	34
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	818
From 75 to 84	800
85 and over	358
Less than 65	172

Conditions of Medicare patients treated by Dr. John O. Schrader, MD in 2015

Hypertension	75
High Cholesterol	75
Stroke	11
Ischemic Heart Disease	75
Depression	23
Chronic Kidney Disease	38
Asthma	20
Osteoperosis	7
Atrial Fibrilation	26
Heart Failure	43
Chronic Obstructive Pulmonary Disease	31
Diabetes	37
Dementia	15
Cancer	14

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. John O. Schrader, MD treated as a cardiologist in Enid, OK during 2016 were cardiac procedures, ultrasound (sonogram), inpatient care and hospital care.

Volume of procedures performed by Dr. John O. Schrader, MD for Medicare patients.

angioplasty	44
cardiac procedures	739
cardioversion	22
catheterization	106
diagnostic procedures	40
doctor visit	1152
hospital care	306
inpatient care	306
minimally invasive procedures	130
nuclear scan	43
stent placement (stenting)	44
stress testing	136
ultrasound (sonogram)	518
vascular procedures	141

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. John O. Schrader, MD.

**Gender**
Male	466
Female	510

**Ethnicity**
Non-Hispanic White	927
Black	13
Hispanic	0
Asian	0
Other	14
Native American	0

**Age**
From 65 to 74	371
From 75 to 84	365
85 and over	168
Less than 65	72

Conditions of Medicare patients treated by Dr. John O. Schrader, MD in 2016

Hypertension	75
High Cholesterol	74
Stroke	9
Ischemic Heart Disease	75
Depression	23
Chronic Kidney Disease	43
Asthma	28
Osteoperosis	7
Atrial Fibrilation	24
Heart Failure	45
Chronic Obstructive Pulmonary Disease	28
Diabetes	38
Dementia	16
Cancer	13

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. John O. Schrader, MD treated as a cardiologist in Enid, OK during 2017 were cardiac procedures, ultrasound (sonogram), inpatient care and hospital care.

Volume of procedures performed by Dr. John O. Schrader, MD for Medicare patients.

angioplasty	50
cardiac procedures	990
cardioversion	23
catheterization	102
diagnostic procedures	27
doctor visit	1258
hospital care	309
inpatient care	309
minimally invasive procedures	126
nuclear scan	122
stent placement (stenting)	50
stress testing	262
ultrasound (sonogram)	608
vascular procedures	205

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. John O. Schrader, MD.

**Gender**
Male	514
Female	528

**Ethnicity**
Non-Hispanic White	987
Black	11
Hispanic	14
Asian	0
Other	17
Native American	0

**Age**
From 65 to 74	398
From 75 to 84	390
85 and over	183
Less than 65	71

Conditions of Medicare patients treated by Dr. John O. Schrader, MD in 2017

Hypertension	75
High Cholesterol	69
Stroke	9
Ischemic Heart Disease	74
Depression	24
Chronic Kidney Disease	43
Asthma	10
Osteoperosis	7
Atrial Fibrilation	25
Heart Failure	47
Chronic Obstructive Pulmonary Disease	31
Diabetes	36
Dementia	16
Cancer	14

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. John O. Schrader, MD treated as a cardiologist in Enid, OK during 2018 were cardiac procedures, ultrasound (sonogram), inpatient care and hospital care.

Volume of procedures performed by Dr. John O. Schrader, MD for Medicare patients.

angioplasty	70
cardiac procedures	904
cardioversion	20
catheterization	136
diagnostic procedures	31
doctor visit	1471
hospital care	249
implant surgery	26
inpatient care	249
minimally invasive procedures	182
nuclear scan	47
stent placement (stenting)	70
stress testing	118
ultrasound (sonogram)	591
vascular procedures	196

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. John O. Schrader, MD.

**Gender**
Male	522
Female	551

**Ethnicity**
Non-Hispanic White	1022
Black	12
Hispanic	14
Asian	0
Other	13
Native American	0

**Age**
From 65 to 74	409
From 75 to 84	428
85 and over	179
Less than 65	57

Conditions of Medicare patients treated by Dr. John O. Schrader, MD in 2018

Hypertension	75
High Cholesterol	75
Stroke	8
Ischemic Heart Disease	71
Depression	24
Chronic Kidney Disease	44
Asthma	10
Osteoperosis	7
Atrial Fibrilation	28
Heart Failure	50
Chronic Obstructive Pulmonary Disease	29
Diabetes	36
Dementia	14
Cancer	15

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. John O. Schrader, MD treated as a cardiologist in Enid, OK during 2019 were cardiac procedures, ultrasound (sonogram), inpatient care and hospital care.

Volume of procedures performed by Dr. John O. Schrader, MD for Medicare patients.

angioplasty	100
cardiac procedures	1161
cardioversion	16
catheterization	169
diagnostic procedures	19
doctor visit	1432
hospital care	365
inpatient care	365
minimally invasive procedures	191
nuclear scan	73
stent placement (stenting)	100
stress testing	231
ultrasound (sonogram)	705
vascular procedures	215

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. John O. Schrader, MD.

**Gender**
Male	647
Female	680

**Ethnicity**
Non-Hispanic White	1262
Black	16
Hispanic	17
Asian	0
Other	0
Native American	16

**Age**
From 65 to 74	502
From 75 to 84	481
85 and over	242
Less than 65	102

Conditions of Medicare patients treated by Dr. John O. Schrader, MD in 2019

Hypertension	75
High Cholesterol	75
Stroke	10
Ischemic Heart Disease	68
Depression	22
Chronic Kidney Disease	44
Asthma	11
Osteoperosis	7
Atrial Fibrilation	25
Heart Failure	46
Chronic Obstructive Pulmonary Disease	30
Diabetes	36
Dementia	12
Cancer	15

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. John O. Schrader, MD treated as a cardiologist in Enid, OK during 2020 were cardiac procedures, ultrasound (sonogram), inpatient care and hospital care.

Volume of procedures performed by Dr. John O. Schrader, MD for Medicare patients.

angioplasty	96
cardiac procedures	1085
cardioversion	22
catheterization	175
diagnostic procedures	31
doctor visit	1563
hospital care	400
implant surgery	12
inpatient care	400
minimally invasive procedures	207
stent placement (stenting)	96
stress testing	128
ultrasound (sonogram)	733
vascular procedures	198

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. John O. Schrader, MD.

**Gender**
Male	671
Female	662

**Ethnicity**
Non-Hispanic White	1269
Black	14
Hispanic	19
Asian	0
Other	0
Native American	17

**Age**
From 65 to 74	512
From 75 to 84	486
85 and over	250
Less than 65	85

Conditions of Medicare patients treated by Dr. John O. Schrader, MD in 2020

Hypertension	75
High Cholesterol	75
Stroke	8
Ischemic Heart Disease	69
Depression	20
Chronic Kidney Disease	45
Asthma	10
Osteoperosis	7
Atrial Fibrilation	24
Heart Failure	47
Chronic Obstructive Pulmonary Disease	28
Diabetes	35
Dementia	12
Cancer	14

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. John O. Schrader, MD treated as a cardiologist in Enid, OK during 2021 were cardiac procedures, ultrasound (sonogram), vascular procedures and minimally invasive procedures.

Volume of procedures performed by Dr. John O. Schrader, MD for Medicare patients.

angioplasty	62
cardiac procedures	649
cardioversion	16
catheterization	154
diagnostic procedures	61
doctor visit	1784
hospital care	110
implant surgery	28
inpatient care	110
lab tests	55
minimally invasive procedures	182
stent placement (stenting)	62
stress testing	17
ultrasound (sonogram)	572
vascular procedures	271

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. John O. Schrader, MD.

**Gender**
Male	511
Female	539

**Ethnicity**
Non-Hispanic White	1016
Black	0
Hispanic	0
Asian	0
Other	12
Native American	0

**Age**
From 65 to 74	409
From 75 to 84	423
85 and over	188
Less than 65	30

Conditions of Medicare patients treated by Dr. John O. Schrader, MD in 2021

Hypertension	75
High Cholesterol	75
Stroke	8
Ischemic Heart Disease	75
Depression	14
Chronic Kidney Disease	41
Asthma	9
Osteoperosis	7
Atrial Fibrilation	25
Heart Failure	40
Chronic Obstructive Pulmonary Disease	20
Diabetes	35
Dementia	10
Cancer	13

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. John O. Schrader, MD treated as a cardiologist in Enid, OK during 2022 were ultrasound (sonogram), cardiac procedures, vascular procedures and lab tests.

Volume of procedures performed by Dr. John O. Schrader, MD for Medicare patients.

ambulatory monitoring	33
angioplasty	60
cardiac procedures	921
cardioversion	19
catheterization	156
diagnostic procedures	66
doctor visit	2354
hospital care	37
implant surgery	24
inpatient care	37
lab tests	289
minimally invasive procedures	180
stent placement (stenting)	60
ultrasound (sonogram)	974
vascular procedures	480

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. John O. Schrader, MD.

**Gender**
Male	605
Female	673

**Ethnicity**
Non-Hispanic White	1229
Black	0
Hispanic	13
Asian	0
Other	17
Native American	0

**Age**
From 65 to 74	504
From 75 to 84	501
85 and over	231
Less than 65	42

Conditions of Medicare patients treated by Dr. John O. Schrader, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	61
Depression	16
Chronic Kidney Disease	31
Asthma	12
Osteoperosis	10
Atrial Fibrilation	38
Heart Failure	28
Chronic Obstructive Pulmonary Disease	24
Diabetes	33
Dementia	5
Cancer	15

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. John O. Schrader, MD for Medicare patients.

The highest averages for the top procedures that Dr. John O. Schrader, MD treated as a cardiologist in Enid, OK were cardiac procedures, ultrasound (sonogram), hospital care and inpatient care.

ambulatory monitoring	33
angioplasty	65
cardiac procedures	850
cardioversion	20
catheterization	151
diagnostic procedures	59
doctor visit	1401
hospital care	300
implant surgery	22
inpatient care	296
lab tests	172
minimally invasive procedures	179
nuclear scan	71
outpatient care	21
stent placement (stenting)	62
stress testing	106
ultrasound (sonogram)	642
vascular procedures	222

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. John O. Schrader, MD.

**Gender**
Male	534
Female	579

**Ethnicity**
Black / African American	10
Asian / Pacific Islander	0
Non-Hispanic White	1062
Native American / Alaskan Native	5
Hispanic	11
Other	6

**Age**
75 to 84	421
85 and over	194
Less than 65	75
65 to 74	423

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

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

Hypertension	68
High Cholesterol	67
Stroke	8
Ischemic Heart Disease	65
Depression	19
Chronic Kidney Disease	36
Asthma	12
Osteoporosis	6
Heart Failure	39
Chronic Obstructive Pulmonary Disease	25
Diabetes	32
Atrial Fibrillation	24
Dementia	11
Cancer	12

Education & Training

He has a state license in Oklahoma.

Licensed In: Oklahoma

Ratings & Reviews

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General Payments

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

**Payments by Company**
Abbott Laboratories	$1,065 Confirm Rx $205	THORATEC HEARTMATE 3 LVAS IMPLANT KIT $180	Assurity Pacemaker $174	Vascular $136	HeartMate $87	Other $283
Janssen Pharmaceuticals, Inc	$759 XARELTO $759
Novartis Pharmaceuticals Corporation	$635 ENTRESTO $509	LEQVIO $98	NON BRAND $28
Medtronic, Inc.	$630 Azure $260	SelectSecure $169	Reveal LINQ $108	AZURE XT DR MRI SURESCAN $94
St. Jude Medical, Inc.	$613 CRM $251	Structural Heart $158	Unify Assura $82	Fortify Assura and Ellipse $36	Allure $35	Other $51
Other	$4,758 ELIQUIS $616	LifeVest $475	VERQUVO $430	JARDIANCE $338	Repatha $315	Other $2,585

**Types of Payments**
Food and Beverage	$8,057
Travel and Lodging	$203
Education	$200

Biography

Dr. John Schrader's specialty is adult cardiology. He graduated from the University of Nebraska College of Medicine.

Select Year:

Dr. John O. Schrader, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. John O. Schrader, MD in 2023

By Volume:

By Volume:

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. John O. Schrader, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John O. Schrader, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John O. Schrader, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John O. Schrader, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John O. Schrader, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John O. Schrader, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John O. Schrader, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John O. Schrader, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John O. Schrader, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John O. Schrader, 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 O. Schrader, MD From 2012 - 2022

Education & Training

Ratings & Reviews

General Payments

Biography

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