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Dr. Marc Zelkowitz, MD

(No ratings)

Specializes in: Adult Nephrology
Albert Einstein College of Medicine of Yeshiva University
Professional interests include: chronic kidney disease (CKD), polycystic kidney disease, urinary tract infection (UTI), and more.
300 Grand Avenue Suite 101
Englewood, NJ 07631

Dr. Marc Zelkowitz, MD is a nephrologist in Westwood, NJ specializing in adult nephrology. He graduated from Albert Einstein College of Medicine of Yeshiva University. Dr. Marc Zelkowitz, MD is affiliated with Holy Name Hospital, Englewood Health, Nephrology Associates of Northern Illinois and Indiana, Englewood Hospital and Medical Center, FRESENIUS BERGEN RENAL CARE, FRESENIUS HOLY NAME RENAL CARE CENTER, DaVita Westwood, DaVita Radburn, Care One Teaneck - Skilled Nursing Facility, FRESENIUS ENGLEWOOD, Pascack Valley Hospital-Hackensack Meridian Health, FRESENIUS FAIRVIEW, CareOne Valley LTACH, Care One Oradell - Skilled Nursing Facility and DaVita Englewood PD.

View Doctor's Full Profile (201) 567-5787

Office Locations

DaVita Englewood PD

250 Old Hook Road Suite 303b
Westwood, NJ 07675
(201) 567-5787
(201) 567-7652
open_in_new
300 Grand Avenue Suite 101
Englewood, NJ 07631
(201) 567-5787
open_in_new

Some issues Dr. Marc Zelkowitz, 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.

Urinary Tract Infection (UTI)

A urinary tract infection, or UTI, happens when bacteria enter the body through the opening where urine is normally released. The bacteria infect the lining of the urethra and bladder, turning them red and inflamed. This causes pain in the abdomen or pelvic area, a burning sensation during urination, a sense of urgency about going to the bathroom, frequent urination, and urine that smells bad and looks cloudy, or even contains traces of blood. If the urinary tract infection is severe, it may travel all the way to the kidneys, a more serious kind of UTI called pyelonephritis. Patients with this kidney infection might have blood in their urine, feel back pain, and develop a fever.

Urinary tract infections are extremely common: 12% of all men and 40-50% of all women will have a urinary tract infection during their lifetime. They are more common in women because women have shorter urethras, so bacteria have a shorter distance to travel from the outside of the body to the bladder and cause an infection. Some people also have urethras that are an unusual shape or have an obstruction in the urethra that makes getting a UTI more likely. Also, certain chronic illnesses like diabetes weaken the immune system, so any bacteria in the body are more likely to cause an infection.

A urinary tract infection can be diagnosed very quickly by a doctor. A sample of urine can be examined under a microscope for the presence of bacteria or white blood cells. There are also diagnostic strips that can be used to test a urine sample without the need for a microscope. Once a diagnosis is made, treatment is a course of oral antibiotics, and most patients feel better within just a few days. There are some things that patients can do themselves to help reduce the risk of getting a urinary tract infection in the future. Stay well hydrated, wipe from front to back after going to the bathroom, wear breathable cotton undergarments, and don't hold it in when patients feel the urge to go.

In The News 

“Marc Zelkowitz, MD, has taken on the role of section chief of nephrology.”—"Cision PR Newswire", WGN 9, March 2023

Noteworthy Medicare Patient Procedures Performed by Dr. Marc Zelkowitz, MD in 2023

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

Top 25%

By Volume:

chronic care

By Affordability:

hemodialysis

In 2012, among providers in related specialties within New Jersey, Dr. Marc Zelkowitz, MD performed more chronic care procedures for Medicare patients than 75% of them and he also had a list price for hemodialysis 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. Marc Zelkowitz, MD treated as a nephrologist in Westwood, NJ during 2012 were hospital care, inpatient care and dialysis.

Volume of procedures performed by Dr. Marc Zelkowitz, MD for Medicare patients.

dialysis 67
hospital care 529
inpatient care 529

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Marc Zelkowitz, MD treated as a nephrologist in Westwood, NJ during 2013 were hospital care, inpatient care, dialysis and hemofiltration.

Volume of procedures performed by Dr. Marc Zelkowitz, MD for Medicare patients.

dialysis 446
doctor visit 29
hemofiltration 44
hospital care 1524
inpatient care 1524

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Marc Zelkowitz, MD.

Gender
Male 250
Female 270
Ethnicity
Non-Hispanic White 358
Black 61
Hispanic 0
Asian 53
Other 0
Native American 0
Age
From 65 to 74 123
From 75 to 84 188
85 and over 158
Less than 65 51

Conditions of Medicare patients treated by Dr. Marc Zelkowitz, MD in 2013

Hypertension 75
High Cholesterol 74
Stroke 16
Ischemic Heart Disease 75
Depression 35
Chronic Kidney Disease 75
Asthma 14
Osteoperosis 12
Atrial Fibrilation 33
Heart Failure 71
Chronic Obstructive Pulmonary Disease 34
Diabetes 59
Dementia 35
Cancer 17

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Marc Zelkowitz, MD treated as a nephrologist in Westwood, NJ during 2014 were hospital care, inpatient care, dialysis and outpatient care.

Volume of procedures performed by Dr. Marc Zelkowitz, MD for Medicare patients.

dialysis 335
doctor visit 93
hospital care 1522
inpatient care 1509
outpatient care 13

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Marc Zelkowitz, MD.

Gender
Male 263
Female 274
Ethnicity
Non-Hispanic White 364
Black 67
Hispanic 0
Asian 55
Other 0
Native American 0
Age
From 65 to 74 142
From 75 to 84 182
85 and over 153
Less than 65 60

Conditions of Medicare patients treated by Dr. Marc Zelkowitz, MD in 2014

Hypertension 75
High Cholesterol 68
Stroke 18
Ischemic Heart Disease 75
Depression 34
Chronic Kidney Disease 75
Asthma 11
Osteoperosis 11
Atrial Fibrilation 33
Heart Failure 65
Chronic Obstructive Pulmonary Disease 30
Diabetes 61
Dementia 34
Cancer 15

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Marc Zelkowitz, MD treated as a nephrologist in Westwood, NJ during 2015 were hospital care, inpatient care, dialysis and lab tests.

Volume of procedures performed by Dr. Marc Zelkowitz, MD for Medicare patients.

dialysis 360
doctor visit 120
hospital care 1569
inpatient care 1569
lab tests 13

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Marc Zelkowitz, MD.

Gender
Male 572
Female 536
Ethnicity
Non-Hispanic White 742
Black 130
Hispanic 94
Asian 118
Other 24
Native American 0
Age
From 65 to 74 276
From 75 to 84 350
85 and over 350
Less than 65 132

Conditions of Medicare patients treated by Dr. Marc Zelkowitz, MD in 2015

Hypertension 75
High Cholesterol 73
Stroke 16
Ischemic Heart Disease 75
Depression 35
Chronic Kidney Disease 75
Asthma 21
Osteoperosis 9
Atrial Fibrilation 33
Heart Failure 64
Chronic Obstructive Pulmonary Disease 34
Diabetes 60
Dementia 31
Cancer 18

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Marc Zelkowitz, MD treated as a nephrologist in Westwood, NJ during 2016 were hospital care, inpatient care, dialysis and lab tests.

Volume of procedures performed by Dr. Marc Zelkowitz, MD for Medicare patients.

dialysis 308
doctor visit 133
hospital care 1351
inpatient care 1351
lab tests 14

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Marc Zelkowitz, MD.

Gender
Male 282
Female 280
Ethnicity
Non-Hispanic White 391
Black 64
Hispanic 0
Asian 58
Other 0
Native American 0
Age
From 65 to 74 142
From 75 to 84 226
85 and over 136
Less than 65 58

Conditions of Medicare patients treated by Dr. Marc Zelkowitz, MD in 2016

Hypertension 75
High Cholesterol 75
Stroke 14
Ischemic Heart Disease 75
Depression 36
Chronic Kidney Disease 75
Asthma 32
Osteoperosis 9
Atrial Fibrilation 31
Heart Failure 60
Chronic Obstructive Pulmonary Disease 30
Diabetes 59
Dementia 31
Cancer 18

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Marc Zelkowitz, MD treated as a nephrologist in Westwood, NJ during 2017 were hospital care, inpatient care, dialysis and hemofiltration.

Volume of procedures performed by Dr. Marc Zelkowitz, MD for Medicare patients.

dialysis 380
doctor visit 169
hemofiltration 73
hospital care 1340
inpatient care 1340
lab tests 20

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Marc Zelkowitz, MD.

Gender
Male 292
Female 244
Ethnicity
Non-Hispanic White 359
Black 58
Hispanic 46
Asian 54
Other 0
Native American 0
Age
From 65 to 74 147
From 75 to 84 187
85 and over 152
Less than 65 50

Conditions of Medicare patients treated by Dr. Marc Zelkowitz, MD in 2017

Hypertension 75
High Cholesterol 68
Stroke 17
Ischemic Heart Disease 75
Depression 38
Chronic Kidney Disease 75
Asthma 12
Osteoperosis 10
Atrial Fibrilation 35
Heart Failure 66
Chronic Obstructive Pulmonary Disease 33
Diabetes 64
Dementia 32
Cancer 15

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Marc Zelkowitz, MD treated as a nephrologist in Westwood, NJ during 2018 were hospital care, inpatient care, dialysis and nursing home care.

Volume of procedures performed by Dr. Marc Zelkowitz, MD for Medicare patients.

dialysis 279
doctor visit 345
hospital care 1060
inpatient care 1060
nursing home care 240

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Marc Zelkowitz, MD.

Gender
Male 301
Female 258
Ethnicity
Non-Hispanic White 359
Black 65
Hispanic 56
Asian 59
Other 0
Native American 0
Age
From 65 to 74 164
From 75 to 84 198
85 and over 152
Less than 65 45

Conditions of Medicare patients treated by Dr. Marc Zelkowitz, MD in 2018

Hypertension 75
High Cholesterol 75
Stroke 17
Ischemic Heart Disease 74
Depression 36
Chronic Kidney Disease 75
Asthma 10
Osteoperosis 9
Atrial Fibrilation 29
Heart Failure 62
Chronic Obstructive Pulmonary Disease 27
Diabetes 63
Dementia 31
Cancer 14

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Marc Zelkowitz, MD treated as a nephrologist in Westwood, NJ during 2019 were hospital care, inpatient care, dialysis and nursing home care.

Volume of procedures performed by Dr. Marc Zelkowitz, MD for Medicare patients.

dialysis 245
doctor visit 312
hospital care 1059
inpatient care 1059
nursing home care 51

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Marc Zelkowitz, MD.

Gender
Male 306
Female 255
Ethnicity
Non-Hispanic White 353
Black 68
Hispanic 54
Asian 60
Other 26
Native American 0
Age
From 65 to 74 152
From 75 to 84 187
85 and over 167
Less than 65 55

Conditions of Medicare patients treated by Dr. Marc Zelkowitz, MD in 2019

Hypertension 75
High Cholesterol 75
Stroke 14
Ischemic Heart Disease 71
Depression 36
Chronic Kidney Disease 75
Asthma 11
Osteoperosis 11
Atrial Fibrilation 30
Heart Failure 60
Chronic Obstructive Pulmonary Disease 28
Diabetes 63
Dementia 32
Cancer 15

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Marc Zelkowitz, MD treated as a nephrologist in Westwood, NJ during 2020 were hospital care, inpatient care, chronic care and dialysis.

Volume of procedures performed by Dr. Marc Zelkowitz, MD for Medicare patients.

chronic care 199
dialysis 170
doctor visit 269
hospital care 951
inpatient care 951

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Marc Zelkowitz, MD.

Gender
Male 298
Female 278
Ethnicity
Non-Hispanic White 376
Black 64
Hispanic 55
Asian 58
Other 23
Native American 0
Age
From 65 to 74 158
From 75 to 84 223
85 and over 149
Less than 65 46

Conditions of Medicare patients treated by Dr. Marc Zelkowitz, MD in 2020

Hypertension 75
High Cholesterol 75
Stroke 15
Ischemic Heart Disease 69
Depression 32
Chronic Kidney Disease 75
Asthma 8
Osteoperosis 11
Atrial Fibrilation 25
Heart Failure 54
Chronic Obstructive Pulmonary Disease 25
Diabetes 61
Dementia 28
Cancer 14

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Marc Zelkowitz, MD treated as a nephrologist in Westwood, NJ during 2021 were hospital care, inpatient care, chronic care and dialysis.

Volume of procedures performed by Dr. Marc Zelkowitz, MD for Medicare patients.

chronic care 423
dialysis 134
doctor visit 379
hospital care 801
inpatient care 801

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Marc Zelkowitz, MD.

Gender
Male 297
Female 236
Ethnicity
Non-Hispanic White 382
Black 52
Hispanic 40
Asian 40
Other 19
Native American 0
Age
From 65 to 74 145
From 75 to 84 208
85 and over 144
Less than 65 36

Conditions of Medicare patients treated by Dr. Marc Zelkowitz, MD in 2021

Hypertension 75
High Cholesterol 75
Stroke 15
Ischemic Heart Disease 69
Depression 35
Chronic Kidney Disease 75
Asthma 9
Osteoperosis 11
Atrial Fibrilation 28
Heart Failure 54
Chronic Obstructive Pulmonary Disease 23
Diabetes 58
Dementia 26
Cancer 15

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Marc Zelkowitz, MD treated as a nephrologist in Westwood, NJ during 2022 were hospital care, inpatient care, chronic care and dialysis.

Volume of procedures performed by Dr. Marc Zelkowitz, MD for Medicare patients.

chronic care 406
dialysis 103
doctor visit 510
hospital care 848
inpatient care 848

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Marc Zelkowitz, MD.

Gender
Male 337
Female 274
Ethnicity
Non-Hispanic White 426
Black 48
Hispanic 49
Asian 54
Other 34
Native American 0
Age
From 65 to 74 162
From 75 to 84 241
85 and over 171
Less than 65 37

Conditions of Medicare patients treated by Dr. Marc Zelkowitz, MD in 2022

Hypertension 75
High Cholesterol 75
Stroke 17
Ischemic Heart Disease 55
Depression 27
Chronic Kidney Disease 75
Asthma 15
Osteoperosis 17
Atrial Fibrilation 38
Heart Failure 47
Chronic Obstructive Pulmonary Disease 23
Diabetes 60
Dementia 18
Cancer 19

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Marc Zelkowitz, MD for Medicare patients.

The highest averages for the top procedures that Dr. Marc Zelkowitz, MD treated as a nephrologist in Westwood, NJ were hospital care, inpatient care, chronic care and dialysis.

chronic care 342
dialysis 257
doctor visit 235
hemofiltration 58
hospital care 1141
inpatient care 1140
lab tests 15
nursing home care 145
outpatient care 13

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Marc Zelkowitz, MD.

Gender
Male 290
Female 264
Ethnicity
Black / African American 61
Asian / Pacific Islander 55
Non-Hispanic White 373
Native American / Alaskan Native 0
Hispanic 35
Other 11
Age
75 to 84 199
85 and over 157
Less than 65 51
65 to 74 146

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

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

Hypertension 68
High Cholesterol 66
Stroke 14
Ischemic Heart Disease 64
Depression 31
Chronic Kidney Disease 68
Asthma 13
Osteoporosis 10
Heart Failure 54
Chronic Obstructive Pulmonary Disease 26
Diabetes 55
Atrial Fibrillation 28
Dementia 27
Cancer 14

Education & Training

Dr. Marc Zelkowitz, MD graduated from Albert Einstein College of Medicine of Yeshiva University. He completed residency at Jacobi Medical Center. He is certified by the Board Certified in Internal Medicine and Nephrology and has a state license in New Jersey.

Medical School: Albert Einstein College of Medicine of Yeshiva University

Residency: Jacobi Medical Center

Board Certification: Board Certified in Internal Medicine and Nephrology

Licensed In: New Jersey

Affiliations & Hospitals

Dr. Marc Zelkowitz, MD is associated with these hospitals and organizations:

Holy Name Hospital
Englewood Health
Nephrology Associates of Northern Illinois and Indiana
Englewood Hospital and Medical Center
FRESENIUS BERGEN RENAL CARE
FRESENIUS HOLY NAME RENAL CARE CENTER
DaVita Westwood
DaVita Radburn
Care One Teaneck - Skilled Nursing Facility
FRESENIUS ENGLEWOOD
Pascack Valley Hospital-Hackensack Meridian Health
FRESENIUS FAIRVIEW
CareOne Valley LTACH
Care One Oradell - Skilled Nursing Facility
DaVita Englewood PD

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General Payments

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

Payments by Company
Vifor Pharma, Inc. $719 VELTASSA
$458 		KORSUVA
$75 		Korsuva
$62
$125
Horizon Therapeutics plc $535 KRYSTEXXA
$535
Bayer HealthCare Pharmaceuticals Inc. $388 Kerendia
$388
AstraZeneca Pharmaceuticals LP $367 LOKELMA
$156 		FARXIGA
$102
$109
Otsuka America Pharmaceutical, Inc. $340 JYNARQUE
$238 		SAMSCA
$102
Other $1,212 Auryxia
$257 		Parsabiv
$134 		VELTASSA
$91 		Velphoro
$82 		Tavneos
$72 		Other
$577
Types of Payments
Food and Beverage $3,091
Consulting Fee $238
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program $200
Education $33

Biography

Dr. Marc Zelkowitz is a specialist in adult nephrology. He works in Englewood, NJ and Westwood, NJ. Clinical interests for Dr. Zelkowitz include acid-base disorder, polycystic kidney disease, and metabolic bone diseases. He attended medical school at Albert Einstein College of Medicine of Yeshiva University. His residency was performed at Jacobi Medical Center. In addition to English, he speaks Hebrew. He is affiliated with Nephrology Associates of Northern Illinois and Indiana, Englewood Health, and Holy Name Hospital.

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