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Dr. Stephen Vaccarezza, MD

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Specializes in: Adult Nephrology

University of Southern California (USC), Keck School of Medicine (1981)

Professional interests include: nephrotic syndrome, glomerulonephritis, fibromuscular dysplasia, and more.

18101 Prince Philip Drive
Olney, MD 20832

(301) 774-8882

Dr. Stephen Vaccarezza, MD is a nephrologist in Olney, MD specializing in adult nephrology. He graduated from University of Southern California (USC), Keck School of Medicine in 1981 and has 43 years of experience. Dr. Stephen Vaccarezza, MD is affiliated with MedStar Montgomery Medical Center, Holy Cross Health, MedStar Health and NEPHROLOGY ASSOCIATES OF MONTGOMERY COUNTY.

Office Locations

Address:

18101 Prince Philip Drive
Olney, MD 20832

Address:

6240 Montrose Road
Rockville, MD 20852

Some issues Dr. Stephen Vaccarezza, MD can help you with:

Dialysis

Dialysis is a procedure that replicates renal (kidney) function by filtering patients' blood. When kidneys do not work properly, waste can accumulate in the blood and unbalanced chemicals can impair the body's critical functions. In order to stay healthy, a person without proper kidney function must receive dialysis. There are two forms of dialysis treatment: hemodialysis and peritoneal dialysis. Both forms of dialysis are recurring treatments that in many cases last throughout the lifetime of the affected patient. Patients who briefly lose renal function may slowly reduce the frequency of dialysis sessions until their kidneys recover. However, most patients who start on dialysis remain on dialysis for the rest of their lives or until they receive a kidney transplant.

A number of conditions can worsen renal function and lead to end-stage or acute kidney failure. When kidneys fail (i.e. nearly 90 percent of their function is lost), dialysis is typically prescribed. Conditions that cause chronic kidney failure (eventually requiring dialysis) include:

Type 1 and 2 Diabetes
Pyelonephritis, recurring kidney infection
Glomerulonephritis, inflammation of the kidney's filtering parts
Polycystic kidney disease
Interstitial nephritis, inflammation of the kidney's tubules
High blood pressure
Vesicoureteral reflux, improper bladder emptying

For hemodialysis (the more common form of dialysis), a patient will visit a hospital or clinic and be connected to a dialysis machine by a needle attached to a tube that draws blood from the arm. The drawn blood is transferred to the dialysis machine, where it is filtered and separated until clean. Waste products from the blood pass into a fluid called dialysate, which is pumped out of the machine into a waste receptacle. The machine also measures and helps ensure the blood has the appropriate level of fluid, electrolytes, and pH. A tube delivers the cleaned blood back into the patient's body. A dialysis session like this will typically last for three to four hours, with a patient undergoing dialysis around three times per week.

A second method of dialysis is known as peritoneal dialysis. Unlike hemodialysis, peritoneal dialysis can be performed at home by oneself after an initial surgery. To start, a physician (generally a surgeon) will make a small incision in the lower abdomen and insert and surgically attach a catheter (thin tube). At home, the patient connects a pump to the abdomen catheter, delivering dialysate (dialysis fluid) from a bag hanging on a wheeled stand. This fluid enters the peritoneal cavity (greater abdomen area containing the stomach, liver, and intestines) and collects waste through osmosis, where waste in the blood moves across a membrane and into the dialysate. This process continues for several hours until the fluid concentration is equal between the blood and dialysate, at which point the fluid can be drained. The fluid can then be passed through a machine called a cycler, which removes waste and allows for the dialysate to be reused. This process is repeated about four times per day. Dialysis patients must limit the amount of fluid they consume prior to receiving dialysis and should also avoid eating salty foods. The cycler cannot filter more than a certain amount of waste products from the blood.

Kidneys are important organs, and dialysis treatments are vital for those with renal dysfunction. For many, dialysis is not so much a medical procedure but a part of their normal life.

**Gender**
Male	301
Female	243

**Ethnicity**
Non-Hispanic White	322
Black	109
Hispanic	37
Asian	58
Other	18
Native American	0

**Age**
From 65 to 74	144
From 75 to 84	191
85 and over	118
Less than 65	91

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	55
Depression	22
Chronic Kidney Disease	75
Asthma	8
Osteoperosis	8
Atrial Fibrilation	18
Heart Failure	46
Chronic Obstructive Pulmonary Disease	16
Diabetes	53
Dementia	19
Cancer	12

blood draw	51
dialysis	68
doctor visit	938
hospital care	660
inpatient care	660
lab tests	95
preventive care	24
vaccines	24

**Gender**
Male	310
Female	258

**Ethnicity**
Non-Hispanic White	336
Black	112
Hispanic	40
Asian	59
Other	21
Native American	0

**Age**
From 65 to 74	161
From 75 to 84	190
85 and over	128
Less than 65	89

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	51
Depression	22
Chronic Kidney Disease	75
Asthma	9
Osteoperosis	8
Atrial Fibrilation	19
Heart Failure	43
Chronic Obstructive Pulmonary Disease	16
Diabetes	52
Dementia	18
Cancer	12

blood draw	23
dialysis	58
doctor visit	904
hospital care	655
inpatient care	655
lab tests	96
preventive care	26
vaccines	26

**Gender**
Male	698
Female	536

**Ethnicity**
Non-Hispanic White	750
Black	244
Hispanic	70
Asian	128
Other	42
Native American	0

**Age**
From 65 to 74	366
From 75 to 84	452
85 and over	268
Less than 65	148

Hypertension	75
High Cholesterol	73
Stroke	10
Ischemic Heart Disease	53
Depression	26
Chronic Kidney Disease	75
Asthma	15
Osteoperosis	8
Atrial Fibrilation	20
Heart Failure	43
Chronic Obstructive Pulmonary Disease	18
Diabetes	53
Dementia	19
Cancer	11

dialysis	163
doctor visit	910
hemofiltration	71
hospital care	702
inpatient care	702
lab tests	85
preventive care	15
vaccines	15

**Gender**
Male	344
Female	271

**Ethnicity**
Non-Hispanic White	338
Black	134
Hispanic	44
Asian	82
Other	17
Native American	0

**Age**
From 65 to 74	163
From 75 to 84	218
85 and over	137
Less than 65	97

Hypertension	75
High Cholesterol	73
Stroke	12
Ischemic Heart Disease	59
Depression	27
Chronic Kidney Disease	75
Asthma	18
Osteoperosis	9
Atrial Fibrilation	22
Heart Failure	44
Chronic Obstructive Pulmonary Disease	16
Diabetes	56
Dementia	23
Cancer	13

dialysis	144
doctor visit	833
hemofiltration	88
hospital care	599
inpatient care	599
lab tests	83
preventive care	20
vaccines	20

**Gender**
Male	349
Female	244

**Ethnicity**
Non-Hispanic White	324
Black	116
Hispanic	42
Asian	81
Other	30
Native American	0

**Age**
From 65 to 74	177
From 75 to 84	189
85 and over	129
Less than 65	98

Hypertension	75
High Cholesterol	73
Stroke	11
Ischemic Heart Disease	59
Depression	29
Chronic Kidney Disease	75
Asthma	10
Osteoperosis	11
Atrial Fibrilation	21
Heart Failure	46
Chronic Obstructive Pulmonary Disease	17
Diabetes	57
Dementia	24
Cancer	13

dialysis	58
doctor visit	822
hospital care	759
inpatient care	759
lab tests	101
preventive care	16
vaccines	16

**Gender**
Male	352
Female	272

**Ethnicity**
Non-Hispanic White	356
Black	119
Hispanic	45
Asian	81
Other	23
Native American	0

**Age**
From 65 to 74	178
From 75 to 84	220
85 and over	141
Less than 65	85

Hypertension	75
High Cholesterol	75
Stroke	10
Ischemic Heart Disease	55
Depression	32
Chronic Kidney Disease	75
Asthma	10
Osteoperosis	10
Atrial Fibrilation	19
Heart Failure	43
Chronic Obstructive Pulmonary Disease	17
Diabetes	55
Dementia	23
Cancer	13

dialysis	55
doctor visit	791
hospital care	643
inpatient care	643
lab tests	100
preventive care	32
vaccines	32

**Gender**
Male	362
Female	271

**Ethnicity**
Non-Hispanic White	347
Black	128
Hispanic	55
Asian	70
Other	33
Native American	0

**Age**
From 65 to 74	184
From 75 to 84	224
85 and over	147
Less than 65	78

Hypertension	75
High Cholesterol	74
Stroke	11
Ischemic Heart Disease	58
Depression	30
Chronic Kidney Disease	75
Asthma	7
Osteoperosis	8
Atrial Fibrilation	19
Heart Failure	45
Chronic Obstructive Pulmonary Disease	17
Diabetes	54
Dementia	27
Cancer	12

dialysis	117
doctor visit	563
hemofiltration	49
hospital care	592
inpatient care	592
lab tests	26
preventive care	18
vaccines	18

**Gender**
Male	305
Female	241

**Ethnicity**
Non-Hispanic White	303
Black	102
Hispanic	46
Asian	68
Other	27
Native American	0

**Age**
From 65 to 74	176
From 75 to 84	182
85 and over	121
Less than 65	67

Hypertension	75
High Cholesterol	74
Stroke	11
Ischemic Heart Disease	54
Depression	29
Chronic Kidney Disease	75
Asthma	8
Osteoperosis	8
Atrial Fibrilation	17
Heart Failure	41
Chronic Obstructive Pulmonary Disease	16
Diabetes	55
Dementia	24
Cancer	15

dialysis	253
doctor visit	1420
hemofiltration	113
hospital care	1241
inpatient care	1241
lab tests	141
preventive care	13
vaccines	13

Average Medicare Procedure Volume From 2013 - 2021

Volume of procedures performed by Dr. Stephen Vaccarezza, MD for Medicare patients.

The highest averages for the top procedures that Dr. Stephen Vaccarezza, MD treated as a nephrologist in Olney, MD were hospital care, inpatient care, dialysis and lab tests.

blood draw	37
dialysis	111
doctor visit	904
hemofiltration	80
hospital care	735
inpatient care	735
lab tests	88
preventive care	25
vaccines	25

Average Medicare Patient Data From 2013 - 2021

Information about Medicare patients treated by Dr. Stephen Vaccarezza, MD.

**Gender**
Male	302
Female	233

**Ethnicity**
Black / African American	106
Asian / Pacific Islander	62
Non-Hispanic White	307
Native American / Alaskan Native	0
Hispanic	37
Other	21

**Age**
75 to 84	186
85 and over	118
Less than 65	75
65 to 74	154

Average of Total of Conditions of Medicare patients treated by Dr. Stephen Vaccarezza, MD From 2013 - 2021

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

Hypertension	60
High Cholesterol	59
Stroke	8
Ischemic Heart Disease	44
Depression	21
Chronic Kidney Disease	60
Asthma	8
Osteoporosis	7
Heart Failure	35
Chronic Obstructive Pulmonary Disease	13
Diabetes	43
Atrial Fibrillation	15
Cancer	10
Dementia	17

Education & Training

Dr. Stephen Vaccarezza, MD graduated from University of Southern California (USC), Keck School of Medicine in 1981. He completed residency at University Hospital-SUNY Health Science Center. He is certified by the American Board of Internal Medicine, Internal Medicine American Board of Internal Medicine, Nephrology and has a state license in Maryland.

Medical School: University of Southern California (USC), Keck School of Medicine (1981)

Residency: University Hospital-SUNY Health Science Center (1985)

Board Certification: American Board of Internal Medicine, Internal Medicine American Board of Internal Medicine, Nephrology

Licensed In: Maryland

Affiliations & Hospitals

Dr. Stephen Vaccarezza, MD is associated with these hospitals and organizations:

MedStar Montgomery Medical Center

Holy Cross Health

MedStar Health

NEPHROLOGY ASSOCIATES OF MONTGOMERY COUNTY

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General Payments

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

**Payments by Company**
Vifor Pharma, Inc.	$857 VELTASSA $502	KORSUVA $182	Korsuva $53	$119
Relypsa, Inc.	$596 VELTASSA $596
AstraZeneca Pharmaceuticals LP	$470 LOKELMA $311	FARXIGA $145	EVUSHELD $14
Amgen Inc.	$456 Parsabiv $252	Tavneos $124	Sensipar $80
Otsuka America Pharmaceutical, Inc.	$265 JYNARQUE $160	SAMSCA $105
Other	$2,299 ACTHAR $552	Kerendia $176	Rituxan $173	Rayaldee $155	RENVELA $134	Other $1,108

**Types of Payments**
Food and Beverage	$4,221
Education	$521
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$200

Biography

Dr. Stephen Vaccarezza's area of specialization is adult nephrology. His clinical interests include renal artery stenosis, polycystic kidney disease, and glomerulonephritis. He is a graduate of the University of Chicago, Pritzker School of Medicine. Dr. Vaccarezza is affiliated with Holy Cross Health and MedStar Montgomery Medical Center.

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Dr. Stephen Vaccarezza, MD

Office Locations

Some issues Dr. Stephen Vaccarezza, MD can help you with:

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

2013 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Stephen Vaccarezza, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Stephen Vaccarezza, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Stephen Vaccarezza, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Stephen Vaccarezza, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Stephen Vaccarezza, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Stephen Vaccarezza, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Stephen Vaccarezza, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Stephen Vaccarezza, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

Average Medicare Procedure Volume From 2013 - 2021

Average Medicare Patient Data From 2013 - 2021

Average of Total of Conditions of Medicare patients treated by Dr. Stephen Vaccarezza, MD From 2013 - 2021

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Biography

Other Providers in Olney, MD