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Dr. John Mellas, MD

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Specializes in: Adult Nephrology

University of Illinois College of Medicine

450 N New Ballas Road Suite 204
Saint Louis, MO 63141

(314) 991-0137

Dr. John Mellas, MD is a nephrologist in Saint Louis, MO specializing in adult nephrology. He graduated from University of Illinois College of Medicine. Dr. John Mellas, MD is affiliated with SSM Health DePaul Hospital, SSM Health, SSM Health St. Mary's Hospital - St. Louis and SSM Health St. Clare Hospital - Fenton.

Office Locations

10004 Kennerly Road Suite 374b, 3 Locations
Saint Louis, MO 63128

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1011 Bowles Avenue Suite 220
Fenton, MO 63026

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450 N New Ballas Road Suite 204
Saint Louis, MO 63141

(314) 991-0137

(314) 991-0603

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6400 Clayton Road Suite 303
Saint Louis, MO 63117

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

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

Top 25%

By Affordability:

hemodialysis

In 2012, Dr. John Mellas, MD had a list price for hemodialysis that was lower than the list prices billed to Medicare by 75% of providers in related specialties within Missouri. 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 Mellas, MD treated as a nephrologist in Saint Louis, MO during 2012 were hospital care, inpatient care and dialysis.

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

dialysis	313
doctor visit	280
hospital care	1344
inpatient care	1344

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. John Mellas, MD treated as a nephrologist in Saint Louis, MO during 2013 were hospital care, inpatient care and dialysis.

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

dialysis	361
doctor visit	259
hospital care	1270
inpatient care	1270

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. John Mellas, MD.

**Gender**
Male	290
Female	262

**Ethnicity**
Non-Hispanic White	236
Black	302
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	153
From 75 to 84	140
85 and over	58
Less than 65	201

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

Hypertension	75
High Cholesterol	59
Stroke	11
Ischemic Heart Disease	63
Depression	33
Chronic Kidney Disease	75
Asthma	13
Osteoperosis	7
Atrial Fibrilation	20
Heart Failure	65
Chronic Obstructive Pulmonary Disease	30
Diabetes	59
Dementia	21
Cancer	10

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. John Mellas, MD treated as a nephrologist in Saint Louis, MO during 2014 were hospital care, inpatient care and dialysis.

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

dialysis	399
doctor visit	237
hospital care	1213
inpatient care	1213

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. John Mellas, MD.

**Gender**
Male	258
Female	294

**Ethnicity**
Non-Hispanic White	0
Black	308
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	133
From 75 to 84	147
85 and over	69
Less than 65	203

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

Hypertension	75
High Cholesterol	61
Stroke	14
Ischemic Heart Disease	63
Depression	34
Chronic Kidney Disease	75
Asthma	15
Osteoperosis	6
Atrial Fibrilation	19
Heart Failure	64
Chronic Obstructive Pulmonary Disease	29
Diabetes	59
Dementia	21
Cancer	10

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. John Mellas, MD treated as a nephrologist in Saint Louis, MO during 2015 were hospital care, inpatient care and dialysis.

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

dialysis	303
doctor visit	241
hospital care	1001
inpatient care	1001

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. John Mellas, MD.

**Gender**
Male	594
Female	608

**Ethnicity**
Non-Hispanic White	550
Black	628
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	324
From 75 to 84	292
85 and over	162
Less than 65	424

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

Hypertension	75
High Cholesterol	62
Stroke	14
Ischemic Heart Disease	63
Depression	37
Chronic Kidney Disease	75
Asthma	19
Osteoperosis	6
Atrial Fibrilation	22
Heart Failure	66
Chronic Obstructive Pulmonary Disease	28
Diabetes	64
Dementia	22
Cancer	12

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. John Mellas, MD treated as a nephrologist in Saint Louis, MO during 2016 were hospital care, inpatient care and dialysis.

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

dialysis	237
doctor visit	198
hospital care	754
inpatient care	754

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. John Mellas, MD.

**Gender**
Male	268
Female	252

**Ethnicity**
Non-Hispanic White	0
Black	261
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	146
From 75 to 84	109
85 and over	65
Less than 65	200

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

Hypertension	75
High Cholesterol	62
Stroke	16
Ischemic Heart Disease	63
Depression	40
Chronic Kidney Disease	75
Asthma	36
Osteoperosis	7
Atrial Fibrilation	21
Heart Failure	67
Chronic Obstructive Pulmonary Disease	34
Diabetes	64
Dementia	25
Cancer	11

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. John Mellas, MD treated as a nephrologist in Saint Louis, MO during 2017 were hospital care, inpatient care and dialysis.

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

dialysis	236
doctor visit	162
hospital care	652
inpatient care	652

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. John Mellas, MD.

**Gender**
Male	253
Female	244

**Ethnicity**
Non-Hispanic White	234
Black	249
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	153
From 75 to 84	104
85 and over	51
Less than 65	189

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

Hypertension	75
High Cholesterol	58
Stroke	14
Ischemic Heart Disease	63
Depression	39
Chronic Kidney Disease	75
Asthma	12
Osteoperosis	4
Atrial Fibrilation	20
Heart Failure	70
Chronic Obstructive Pulmonary Disease	31
Diabetes	62
Dementia	27
Cancer	10

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. John Mellas, MD treated as a nephrologist in Saint Louis, MO during 2018 were hospital care, inpatient care and dialysis.

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

dialysis	165
doctor visit	179
hospital care	344
inpatient care	344

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. John Mellas, MD.

**Gender**
Male	188
Female	199

**Ethnicity**
Non-Hispanic White	190
Black	186
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	99
From 75 to 84	102
85 and over	41
Less than 65	145

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

Hypertension	75
High Cholesterol	65
Stroke	16
Ischemic Heart Disease	64
Depression	37
Chronic Kidney Disease	75
Asthma	10
Osteoperosis	6
Atrial Fibrilation	20
Heart Failure	64
Chronic Obstructive Pulmonary Disease	28
Diabetes	65
Dementia	24
Cancer	10

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. John Mellas, MD treated as a nephrologist in Saint Louis, MO during 2019 were hospital care, inpatient care and dialysis.

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

dialysis	106
doctor visit	165
hospital care	294
inpatient care	294

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. John Mellas, MD.

**Gender**
Male	181
Female	159

**Ethnicity**
Non-Hispanic White	173
Black	154
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	98
From 75 to 84	79
85 and over	31
Less than 65	132

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

Hypertension	75
High Cholesterol	66
Stroke	11
Ischemic Heart Disease	62
Depression	40
Chronic Kidney Disease	75
Asthma	10
Osteoperosis	4
Atrial Fibrilation	24
Heart Failure	63
Chronic Obstructive Pulmonary Disease	23
Diabetes	56
Dementia	22
Cancer	11

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. John Mellas, MD treated as a nephrologist in Saint Louis, MO during 2020 were hospital care, inpatient care and dialysis.

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

dialysis	110
doctor visit	150
hospital care	363
inpatient care	363

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. John Mellas, MD.

**Gender**
Male	171
Female	147

**Ethnicity**
Non-Hispanic White	170
Black	134
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	93
From 75 to 84	80
85 and over	30
Less than 65	115

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

Hypertension	75
High Cholesterol	72
Stroke	12
Ischemic Heart Disease	61
Depression	34
Chronic Kidney Disease	75
Asthma	10
Osteoperosis	5
Atrial Fibrilation	19
Heart Failure	60
Chronic Obstructive Pulmonary Disease	27
Diabetes	63
Dementia	25
Cancer	11

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. John Mellas, MD treated as a nephrologist in Saint Louis, MO during 2021 were hospital care, inpatient care and dialysis.

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

dialysis	208
doctor visit	122
hospital care	477
inpatient care	477

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. John Mellas, MD.

**Gender**
Male	168
Female	108

**Ethnicity**
Non-Hispanic White	173
Black	91
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	95
From 75 to 84	65
85 and over	22
Less than 65	94

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

Hypertension	75
High Cholesterol	74
Stroke	15
Ischemic Heart Disease	62
Depression	39
Chronic Kidney Disease	75
Asthma	7
Osteoperosis	4
Atrial Fibrilation	20
Heart Failure	63
Chronic Obstructive Pulmonary Disease	24
Diabetes	62
Dementia	26
Cancer	11

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. John Mellas, MD treated as a nephrologist in Saint Louis, MO during 2022 were hospital care, inpatient care and dialysis.

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

dialysis	161
doctor visit	81
hospital care	219
inpatient care	219

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. John Mellas, MD.

**Gender**
Male	83
Female	79

**Ethnicity**
Non-Hispanic White	81
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	53
From 75 to 84	43
85 and over	14
Less than 65	52

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

Hypertension	75
High Cholesterol	75
Stroke	19
Ischemic Heart Disease	53
Depression	35
Chronic Kidney Disease	75
Asthma	10
Osteoperosis	7
Atrial Fibrilation	28
Heart Failure	56
Chronic Obstructive Pulmonary Disease	25
Diabetes	61
Dementia	13
Cancer	17

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

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

The highest averages for the top procedures that Dr. John Mellas, MD treated as a nephrologist in Saint Louis, MO were hospital care, inpatient care and dialysis.

dialysis	236
doctor visit	188
hospital care	721
inpatient care	721

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. John Mellas, MD.

**Gender**
Male	223
Female	213

**Ethnicity**
Black / African American	210
Asian / Pacific Islander	0
Non-Hispanic White	164
Native American / Alaskan Native	0
Hispanic	0
Other	0

**Age**
75 to 84	105
85 and over	49
Less than 65	159
65 to 74	122

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

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

Hypertension	68
High Cholesterol	59
Stroke	12
Ischemic Heart Disease	56
Depression	33
Chronic Kidney Disease	68
Asthma	12
Osteoporosis	5
Heart Failure	58
Chronic Obstructive Pulmonary Disease	25
Diabetes	55
Atrial Fibrillation	19
Dementia	20
Cancer	10

Education & Training

Dr. John Mellas, MD graduated from University of Illinois College of Medicine. He completed residency at University of Illinois Affiliated Hospitals. He is certified by the American Board of Internal Medicine American Board of Internal Medicine/Nephrology Drug Enforcement Administration Illinois Department of Financial & Professional Regulation Missouri Dept of Health/Narcotics&Dangerous Drugs Missouri State Board of Registration and has a state license in Missouri.

Medical School: University of Illinois College of Medicine

Residency: University of Illinois Affiliated Hospitals

Board Certification: American Board of Internal Medicine American Board of Internal Medicine/Nephrology Drug Enforcement Administration Illinois Department of Financial & Professional Regulation Missouri Dept of Health/Narcotics&Dangerous Drugs Missouri State Board of Registration

Licensed In: Missouri

Affiliations & Hospitals

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

SSM Health DePaul Hospital

SSM Health

SSM Health St. Mary's Hospital - St. Louis

SSM Health St. Clare Hospital - Fenton

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General Payments

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

**Payments by Company**
Mallinckrodt LLC	$410 ACTHAR $410
Medtronic, Inc.	$167 RESOLUTE ONYX $167
Boehringer Ingelheim Pharmaceuticals, Inc.	$103 JARDIANCE $103
Questcor Pharmaceuticals	$94 ACTHAR $94
AstraZeneca Pharmaceuticals LP	$78 LOKELMA $78
Other	$255 LUTONIX $70	VELTASSA $62	ACTHAR $53	Sensipar $32	GATTEX $17	Other $21

**Types of Payments**
Food and Beverage	$1,011
Education	$95

Research Payments

Dr. John Mellas, MD has received 3 research payments totaling $4,230.

Biography

Dr. John Mellas works as an adult nephrology. His education and training includes medical school at the University of Illinois College of Medicine and residency at a hospital affiliated with the University of Illinois. Dr. Mellas's hospital/clinic affiliations include SSM Health DePaul Hospital, SSM Health St. Clare Hospital - Fenton, and SSM Health St. Mary's Hospital - St. Louis.