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Home > OK Providers > Interventional Cardiologists

Dr. John M. Williams, MD

(Dr. John Michael Williams, M.D.)

(No ratings)

Specializes in: Interventional Cardiology and Adult Cardiology

University of Oklahoma College of Medicine (1992)

3200 Quail Springs Parkway Suite 200
Oklahoma City, OK 73134

(405) 701-9880

Dr. John M. Williams, MD is an interventional cardiologist in Oklahoma City, OK specializing in interventional cardiology and adult cardiology. He graduated from University of Oklahoma College of Medicine in 1992 and has 34 years of experience. Dr. John M. Williams, MD is affiliated with Mercy Health System, Mercy Hospital Oklahoma City, ADVANCED CARDIOVASCULAR SOLUTIONS, LLC and CARDIOVASCULAR HEALTH CLINIC PLLC.

Office Locations

Mercy Hospital Oklahoma City

3200 Quail Springs Parkway Suite 200
Oklahoma City, OK 73134

(405) 701-9880

(405) 241-0998

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Noteworthy Medicare Patient Procedures Performed by Dr. John M. Williams, MD in 2023

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

Top 10%

By Volume:

cardioversion

Doppler echocardiography

elective external cardioversion

minimally invasive procedures

In 2023, Dr. John M. Williams, MD performed more cardioversion, Doppler echocardiography, elective external cardioversion, and minimally invasive procedures procedures for Medicare patients than 90% of providers in related specialties within Oklahoma.

Top 25%

By Volume:

cardiac catheterization

cardiac procedures

coronary angiogram

left heart catheterization

ultrasound

By Affordability:

hospital care

inpatient care

inpatient hospital care

In 2012, among providers in related specialties within Oklahoma, Dr. John M. Williams, MD performed more cardiac catheterization, cardiac procedures, coronary angiogram, left heart catheterization, and ultrasound (sonogram) procedures for Medicare patients than 75% of them and he also had a list price for hospital care, inpatient care, and inpatient hospital care (for patient admitted to hospital) 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 M. Williams, MD treated as an interventional cardiologist in Oklahoma City, OK during 2012 were cardiac procedures, ultrasound (sonogram), hospital care and minimally invasive procedures.

Volume of procedures performed by Dr. John M. Williams, MD for Medicare patients.

cardiac procedures	1221
catheterization	298
diagnostic procedures	239
doctor visit	2984
hospital care	431
implant surgery	16
inpatient care	369
minimally invasive procedures	378
nuclear scan	73
outpatient care	51
stent placement (stenting)	59
stress testing	153
ultrasound (sonogram)	754
vascular procedures	296

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. John M. Williams, MD treated as an interventional cardiologist in Oklahoma City, OK during 2013 were cardiac procedures, ultrasound (sonogram), hospital care and minimally invasive procedures.

Volume of procedures performed by Dr. John M. Williams, MD for Medicare patients.

angioplasty	88
cardiac procedures	1086
catheterization	338
diagnostic procedures	206
doctor visit	3067
hospital care	464
implant surgery	24
inpatient care	385
minimally invasive procedures	446
outpatient care	67
stent placement (stenting)	88
ultrasound (sonogram)	724
vascular procedures	267

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. John M. Williams, MD.

**Gender**
Male	1043
Female	1070

**Ethnicity**
Non-Hispanic White	1963
Black	39
Hispanic	14
Asian	0
Other	0
Native American	82

**Age**
From 65 to 74	824
From 75 to 84	822
85 and over	350
Less than 65	117

Conditions of Medicare patients treated by Dr. John M. Williams, MD in 2013

Hypertension	75
High Cholesterol	67
Stroke	6
Ischemic Heart Disease	75
Depression	21
Chronic Kidney Disease	28
Asthma	8
Osteoperosis	7
Atrial Fibrilation	21
Heart Failure	31
Chronic Obstructive Pulmonary Disease	19
Diabetes	33
Dementia	11
Cancer	11

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. John M. Williams, MD treated as an interventional cardiologist in Oklahoma City, OK during 2014 were cardiac procedures, ultrasound (sonogram), hospital care and minimally invasive procedures.

Volume of procedures performed by Dr. John M. Williams, MD for Medicare patients.

angioplasty	82
cardiac procedures	1120
cardioversion	14
catheterization	311
diagnostic procedures	177
doctor visit	2919
hospital care	451
implant surgery	22
inpatient care	381
minimally invasive procedures	420
outpatient care	70
stent placement (stenting)	82
ultrasound (sonogram)	787
vascular procedures	190

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. John M. Williams, MD.

**Gender**
Male	1058
Female	1093

**Ethnicity**
Non-Hispanic White	2001
Black	40
Hispanic	14
Asian	0
Other	0
Native American	76

**Age**
From 65 to 74	852
From 75 to 84	855
85 and over	335
Less than 65	109

Conditions of Medicare patients treated by Dr. John M. Williams, MD in 2014

Hypertension	75
High Cholesterol	65
Stroke	5
Ischemic Heart Disease	74
Depression	23
Chronic Kidney Disease	29
Asthma	7
Osteoperosis	7
Atrial Fibrilation	22
Heart Failure	31
Chronic Obstructive Pulmonary Disease	19
Diabetes	33
Dementia	11
Cancer	10

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. John M. Williams, MD treated as an interventional cardiologist in Oklahoma City, OK during 2015 were cardiac procedures, ultrasound (sonogram), hospital care and minimally invasive procedures.

Volume of procedures performed by Dr. John M. Williams, MD for Medicare patients.

angioplasty	118
cardiac procedures	1226
cardioversion	18
catheterization	380
diagnostic procedures	203
doctor visit	2930
hospital care	587
implant surgery	20
inpatient care	483
minimally invasive procedures	528
outpatient care	104
stent placement (stenting)	118
ultrasound (sonogram)	826
vascular procedures	228

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. John M. Williams, MD.

**Gender**
Male	2288
Female	2412

**Ethnicity**
Non-Hispanic White	4370
Black	92
Hispanic	40
Asian	0
Other	0
Native American	156

**Age**
From 65 to 74	1818
From 75 to 84	1868
85 and over	756
Less than 65	258

Conditions of Medicare patients treated by Dr. John M. Williams, MD in 2015

Hypertension	75
High Cholesterol	67
Stroke	5
Ischemic Heart Disease	74
Depression	22
Chronic Kidney Disease	30
Asthma	15
Osteoperosis	7
Atrial Fibrilation	24
Heart Failure	33
Chronic Obstructive Pulmonary Disease	21
Diabetes	33
Dementia	11
Cancer	10

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. John M. Williams, MD treated as an interventional cardiologist in Oklahoma City, OK during 2016 were cardiac procedures, ultrasound (sonogram), minimally invasive procedures and catheterization.

Volume of procedures performed by Dr. John M. Williams, MD for Medicare patients.

ambulatory monitoring	33
angioplasty	158
cardiac procedures	1264
cardioversion	22
catheterization	435
diagnostic procedures	196
doctor visit	3084
hospital care	399
implant surgery	39
inpatient care	341
minimally invasive procedures	565
outpatient care	58
stent placement (stenting)	134
ultrasound (sonogram)	757
vascular procedures	196

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. John M. Williams, MD.

**Gender**
Male	1191
Female	1202

**Ethnicity**
Non-Hispanic White	2228
Black	48
Hispanic	16
Asian	0
Other	0
Native American	78

**Age**
From 65 to 74	929
From 75 to 84	943
85 and over	414
Less than 65	107

Conditions of Medicare patients treated by Dr. John M. Williams, MD in 2016

Hypertension	75
High Cholesterol	72
Stroke	5
Ischemic Heart Disease	73
Depression	19
Chronic Kidney Disease	36
Asthma	22
Osteoperosis	7
Atrial Fibrilation	21
Heart Failure	31
Chronic Obstructive Pulmonary Disease	20
Diabetes	33
Dementia	11
Cancer	11

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. John M. Williams, MD treated as an interventional cardiologist in Oklahoma City, OK during 2017 were cardiac procedures, ultrasound (sonogram), minimally invasive procedures and catheterization.

Volume of procedures performed by Dr. John M. Williams, MD for Medicare patients.

ambulatory monitoring	23
angioplasty	176
cardiac procedures	1582
cardioversion	21
catheterization	521
diagnostic procedures	255
doctor visit	2796
hospital care	454
implant surgery	25
inpatient care	390
minimally invasive procedures	651
outpatient care	64
stent placement (stenting)	146
stress testing	11
ultrasound (sonogram)	948
vascular procedures	306

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. John M. Williams, MD.

**Gender**
Male	1210
Female	1178

**Ethnicity**
Non-Hispanic White	2241
Black	36
Hispanic	18
Asian	0
Other	0
Native American	68

**Age**
From 65 to 74	920
From 75 to 84	946
85 and over	415
Less than 65	107

Conditions of Medicare patients treated by Dr. John M. Williams, MD in 2017

Hypertension	75
High Cholesterol	71
Stroke	6
Ischemic Heart Disease	73
Depression	20
Chronic Kidney Disease	39
Asthma	7
Osteoperosis	7
Atrial Fibrilation	22
Heart Failure	31
Chronic Obstructive Pulmonary Disease	20
Diabetes	34
Dementia	10
Cancer	10

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. John M. Williams, MD treated as an interventional cardiologist in Oklahoma City, OK during 2018 were cardiac procedures, ultrasound (sonogram), minimally invasive procedures and catheterization.

Volume of procedures performed by Dr. John M. Williams, MD for Medicare patients.

ambulatory monitoring	16
angioplasty	164
cardiac procedures	1484
cardioversion	30
catheterization	466
diagnostic procedures	232
doctor visit	2727
hospital care	386
implant surgery	30
inpatient care	332
minimally invasive procedures	580
outpatient care	54
stent placement (stenting)	140
ultrasound (sonogram)	920
vascular procedures	269

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. John M. Williams, MD.

**Gender**
Male	1230
Female	1218

**Ethnicity**
Non-Hispanic White	2298
Black	28
Hispanic	0
Asian	0
Other	19
Native American	79

**Age**
From 65 to 74	930
From 75 to 84	991
85 and over	425
Less than 65	102

Conditions of Medicare patients treated by Dr. John M. Williams, MD in 2018

Hypertension	75
High Cholesterol	74
Stroke	7
Ischemic Heart Disease	71
Depression	21
Chronic Kidney Disease	39
Asthma	8
Osteoperosis	6
Atrial Fibrilation	21
Heart Failure	30
Chronic Obstructive Pulmonary Disease	20
Diabetes	34
Dementia	10
Cancer	11

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. John M. Williams, MD treated as an interventional cardiologist in Oklahoma City, OK during 2019 were cardiac procedures, ultrasound (sonogram), minimally invasive procedures and hospital care.

Volume of procedures performed by Dr. John M. Williams, MD for Medicare patients.

angioplasty	148
cardiac procedures	1506
cardioversion	33
catheterization	474
diagnostic procedures	237
doctor visit	2595
hospital care	534
implant surgery	23
inpatient care	467
minimally invasive procedures	601
outpatient care	67
stent placement (stenting)	132
ultrasound (sonogram)	933
vascular procedures	275

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. John M. Williams, MD.

**Gender**
Male	1243
Female	1237

**Ethnicity**
Non-Hispanic White	2319
Black	27
Hispanic	0
Asian	0
Other	25
Native American	78

**Age**
From 65 to 74	932
From 75 to 84	1024
85 and over	431
Less than 65	93

Conditions of Medicare patients treated by Dr. John M. Williams, MD in 2019

Hypertension	75
High Cholesterol	74
Stroke	6
Ischemic Heart Disease	69
Depression	20
Chronic Kidney Disease	40
Asthma	8
Osteoperosis	7
Atrial Fibrilation	23
Heart Failure	30
Chronic Obstructive Pulmonary Disease	20
Diabetes	34
Dementia	9
Cancer	11

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. John M. Williams, MD treated as an interventional cardiologist in Oklahoma City, OK during 2020 were cardiac procedures, ultrasound (sonogram), minimally invasive procedures and catheterization.

Volume of procedures performed by Dr. John M. Williams, MD for Medicare patients.

ambulatory monitoring	16
angioplasty	142
cardiac procedures	1313
cardioversion	23
catheterization	427
diagnostic procedures	225
doctor visit	2603
hospital care	400
implant surgery	14
inpatient care	346
minimally invasive procedures	520
outpatient care	54
stent placement (stenting)	120
ultrasound (sonogram)	778
vascular procedures	264

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. John M. Williams, MD.

**Gender**
Male	1249
Female	1219

**Ethnicity**
Non-Hispanic White	2300
Black	36
Hispanic	0
Asian	0
Other	23
Native American	84

**Age**
From 65 to 74	968
From 75 to 84	993
85 and over	409
Less than 65	98

Conditions of Medicare patients treated by Dr. John M. Williams, MD in 2020

Hypertension	75
High Cholesterol	73
Stroke	7
Ischemic Heart Disease	68
Depression	21
Chronic Kidney Disease	39
Asthma	8
Osteoperosis	8
Atrial Fibrilation	20
Heart Failure	28
Chronic Obstructive Pulmonary Disease	18
Diabetes	33
Dementia	9
Cancer	10

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. John M. Williams, MD treated as an interventional cardiologist in Oklahoma City, OK during 2021 were cardiac procedures, ultrasound (sonogram), minimally invasive procedures and hospital care.

Volume of procedures performed by Dr. John M. Williams, MD for Medicare patients.

ambulatory monitoring	17
angioplasty	88
cardiac procedures	1426
cardioversion	29
catheterization	332
diagnostic procedures	200
doctor visit	2670
hospital care	401
implant surgery	13
inpatient care	352
minimally invasive procedures	446
outpatient care	49
stent placement (stenting)	88
stress testing	30
ultrasound (sonogram)	949
vascular procedures	234

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. John M. Williams, MD.

**Gender**
Male	1283
Female	1326

**Ethnicity**
Non-Hispanic White	2409
Black	51
Hispanic	0
Asian	0
Other	27
Native American	91

**Age**
From 65 to 74	968
From 75 to 84	1095
85 and over	437
Less than 65	109

Conditions of Medicare patients treated by Dr. John M. Williams, MD in 2021

Hypertension	75
High Cholesterol	75
Stroke	6
Ischemic Heart Disease	66
Depression	20
Chronic Kidney Disease	40
Asthma	8
Osteoperosis	8
Atrial Fibrilation	21
Heart Failure	29
Chronic Obstructive Pulmonary Disease	18
Diabetes	35
Dementia	9
Cancer	10

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. John M. Williams, MD treated as an interventional cardiologist in Oklahoma City, OK during 2022 were cardiac procedures, ultrasound (sonogram), hospital care and minimally invasive procedures.

Volume of procedures performed by Dr. John M. Williams, MD for Medicare patients.

angioplasty	60
cardiac procedures	1154
cardioversion	30
catheterization	231
diagnostic procedures	141
doctor visit	2508
hospital care	325
implant surgery	12
inpatient care	290
minimally invasive procedures	311
outpatient care	35
stent placement (stenting)	60
ultrasound (sonogram)	847
vascular procedures	173

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. John M. Williams, MD.

**Gender**
Male	1223
Female	1310

**Ethnicity**
Non-Hispanic White	2361
Black	47
Hispanic	0
Asian	0
Other	30
Native American	67

**Age**
From 65 to 74	938
From 75 to 84	1038
85 and over	457
Less than 65	100

Conditions of Medicare patients treated by Dr. John M. Williams, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	10
Ischemic Heart Disease	56
Depression	19
Chronic Kidney Disease	32
Asthma	12
Osteoperosis	13
Atrial Fibrilation	32
Heart Failure	27
Chronic Obstructive Pulmonary Disease	23
Diabetes	35
Dementia	6
Cancer	14

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. John M. Williams, MD for Medicare patients.

The highest averages for the top procedures that Dr. John M. Williams, MD treated as an interventional cardiologist in Oklahoma City, OK were cardiac procedures, ultrasound (sonogram), minimally invasive procedures and hospital care.

ambulatory monitoring	21
angioplasty	122
cardiac procedures	1307
cardioversion	24
catheterization	383
diagnostic procedures	210
doctor visit	2807
hospital care	439
implant surgery	21
inpatient care	376
minimally invasive procedures	495
nuclear scan	73
outpatient care	61
stent placement (stenting)	106
stress testing	64
ultrasound (sonogram)	838
vascular procedures	245

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. John M. Williams, MD.

**Gender**
Male	1183
Female	1205

**Ethnicity**
Black / African American	40
Asian / Pacific Islander	0
Non-Hispanic White	2226
Hispanic	9
Native American / Alaskan Native	78
Other	11

**Age**
75 to 84	961
85 and over	402
Less than 65	109
65 to 74	916

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

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

Hypertension	68
High Cholesterol	64
Stroke	5
Ischemic Heart Disease	63
Depression	18
Chronic Kidney Disease	32
Asthma	9
Osteoporosis	7
Heart Failure	27
Chronic Obstructive Pulmonary Disease	18
Diabetes	30
Atrial Fibrillation	20
Cancer	9
Dementia	8

Education & Training

Dr. John M. Williams, MD graduated from University of Oklahoma College of Medicine in 1992. He completed residency at University of Oklahoma Health Sciences Center. He is certified by the American Board of Internal Medicine (Cardiovascular Disease) and has a state license in Oklahoma.

Medical School: University of Oklahoma College of Medicine (1992)

Residency: University of Oklahoma Health Sciences Center

Board Certification: American Board of Internal Medicine (Cardiovascular Disease)

Licensed In: Oklahoma

Affiliations & Hospitals

Dr. John M. Williams, MD is associated with these hospitals and organizations:

Mercy Health System

Mercy Hospital Oklahoma City

ADVANCED CARDIOVASCULAR SOLUTIONS, LLC

CARDIOVASCULAR HEALTH CLINIC PLLC

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General Payments

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

**Payments by Company**
Edwards Lifesciences Corporation	$5,946 EDWARDS SAPIEN 3 TRANSCATHETER HEART VALVE (THV) $2,266	Edwards SAPIEN 3 Ultra Transcatheter Heart Valve $497	Edwards SAPIEN 3 Transcatheter Heart Valve $427	Transcatheter Heart Valves $263	$2,492
Medtronic Vascular, Inc.	$4,934 CoreValve Evolut $2,798	Cardiac Resynchronization Therapy - CRT $1,589	Cardiac Monitors - Insertable $187	Heart Valves $155	3F $136	Other $70
Abbott Laboratories	$1,214 Vascular $396	CardioMEMS $299	THORATEC HEARTMATE 3 LVAS IMPLANT KIT $178	Freestyle Libre 2 $130	HeartMate 3 Left Ventricular Assist Device $108	Other $103
E.R. Squibb & Sons, L.L.C.	$1,070 ELIQUIS $626	CAMZYOS $317	$127
Amgen Inc.	$869 Repatha $869
Other	$6,106 BRILINTA $719	LifeVest $517	ELIQUIS $422	XARELTO $409	ENTRESTO $268	Other $3,771

**Types of Payments**
Food and Beverage	$12,874
Travel and Lodging	$7,257
Education	$7

Biography

Dr. John Williams practices adult cardiology and interventional cardiology in Oklahoma City, OK. Dr. Williams is professionally affiliated with Mercy Hospital Oklahoma City. His education and training includes medical school at the University of Oklahoma College of Medicine and residency at the University of Oklahoma Health Sciences Center.