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Dr. Songul Onder, MD

Specializes in: Adult Nephrology
Professional interests include: hypertension (high blood pressure), dialysis, vasculitis, and more.
800 Linden Avenue Floor 8
Baltimore, MD 21201

Dr. Songul Onder, MD is a nephrologist in Baltimore, MD specializing in adult nephrology. Dr. Songul Onder, MD is affiliated with University of Maryland Medical System and UNIVERSITY OF MARYLAND PHYSICIANS PA.

View Doctor's Full Profile (443) 682-6800

Office Locations

22 S Greene Street
Baltimore, MD 21201
(410) 328-5720
(410) 328-6585
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University of Maryland Medical System

800 Linden Avenue Floor 8
Baltimore, MD 21201
(443) 682-6800
(410) 669-2302
open_in_new

Some issues Dr. Songul Onder, 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.

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Songul Onder, MD treated as a nephrologist in Baltimore, MD during 2013 were hospital care and inpatient care.

Volume of procedures performed by Dr. Songul Onder, MD for Medicare patients.

doctor visit 292
hospital care 123
inpatient care 123

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Songul Onder, MD.

Gender
Male 129
Female 139
Age
From 65 to 74 104
From 75 to 84 64
85 and over 30
Less than 65 70

Conditions of Medicare patients treated by Dr. Songul Onder, MD in 2013

The most common conditions of Medicare patients that Dr. Songul Onder, MD treated during 2013 were chronic kidney disease, high cholesterol, hypertension and ischemic heart disease.

Hypertension 75
High Cholesterol 75
Stroke 6
Ischemic Heart Disease 65
Depression 28
Chronic Kidney Disease 75
Asthma 11
Osteoperosis 6
Atrial Fibrilation 18
Heart Failure 51
Chronic Obstructive Pulmonary Disease 31
Diabetes 64
Dementia 10
Cancer 9

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Songul Onder, MD treated as a nephrologist in Baltimore, MD during 2014 were hospital care, inpatient care and dialysis.

Volume of procedures performed by Dr. Songul Onder, MD for Medicare patients.

dialysis 78
doctor visit 207
hospital care 676
inpatient care 676

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Songul Onder, MD.

Gender
Male 197
Female 177
Ethnicity
Non-Hispanic White 358
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 113
From 75 to 84 95
85 and over 31
Less than 65 135

Conditions of Medicare patients treated by Dr. Songul Onder, MD in 2014

The most common conditions of Medicare patients that Dr. Songul Onder, MD treated during 2014 were chronic kidney disease, high cholesterol, hypertension and ischemic heart disease.

Hypertension 75
High Cholesterol 75
Stroke 9
Ischemic Heart Disease 72
Depression 41
Chronic Kidney Disease 75
Asthma 20
Osteoperosis 10
Atrial Fibrilation 24
Heart Failure 64
Chronic Obstructive Pulmonary Disease 40
Diabetes 68
Dementia 10
Cancer 13

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Songul Onder, MD treated as a nephrologist in Baltimore, MD during 2015 were hospital care, inpatient care and dialysis.

Volume of procedures performed by Dr. Songul Onder, MD for Medicare patients.

dialysis 71
doctor visit 239
hospital care 710
inpatient care 710

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Songul Onder, MD.

Gender
Male 428
Female 392
Ethnicity
Non-Hispanic White 760
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 324
From 75 to 84 198
85 and over 70
Less than 65 228

Conditions of Medicare patients treated by Dr. Songul Onder, MD in 2015

The most common conditions of Medicare patients that Dr. Songul Onder, MD treated during 2015 were chronic kidney disease, high cholesterol, hypertension and ischemic heart disease.

Hypertension 75
High Cholesterol 75
Stroke 11
Ischemic Heart Disease 74
Depression 40
Chronic Kidney Disease 75
Asthma 28
Osteoperosis 10
Atrial Fibrilation 26
Heart Failure 64
Chronic Obstructive Pulmonary Disease 40
Diabetes 69
Dementia 12
Cancer 15

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Songul Onder, MD treated as a nephrologist in Baltimore, MD during 2016 were hospital care, inpatient care and dialysis.

Volume of procedures performed by Dr. Songul Onder, MD for Medicare patients.

dialysis 37
doctor visit 20
hospital care 756
inpatient care 756

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Songul Onder, MD.

Gender
Male 166
Female 127
Ethnicity
Non-Hispanic White 0
Black 197
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 87
From 75 to 84 0
85 and over 0
Less than 65 159

Conditions of Medicare patients treated by Dr. Songul Onder, MD in 2016

The most common conditions of Medicare patients that Dr. Songul Onder, MD treated during 2016 were chronic kidney disease, hypertension, heart failure and high cholesterol.

Hypertension 75
High Cholesterol 66
Stroke 15
Ischemic Heart Disease 64
Depression 32
Chronic Kidney Disease 75
Asthma 32
Osteoperosis 6
Atrial Fibrilation 16
Heart Failure 67
Chronic Obstructive Pulmonary Disease 31
Diabetes 62
Dementia 18
Cancer 11

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Songul Onder, MD treated as a nephrologist in Baltimore, MD during 2017 were hospital care, inpatient care and dialysis.

Volume of procedures performed by Dr. Songul Onder, MD for Medicare patients.

dialysis 27
doctor visit 65
hospital care 585
inpatient care 585

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Songul Onder, MD.

Gender
Male 141
Female 115
Ethnicity
Non-Hispanic White 0
Black 186
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 82
From 75 to 84 0
85 and over 0
Less than 65 132

Conditions of Medicare patients treated by Dr. Songul Onder, MD in 2017

The most common conditions of Medicare patients that Dr. Songul Onder, MD treated during 2017 were chronic kidney disease, hypertension, high cholesterol and heart failure.

Hypertension 75
High Cholesterol 68
Stroke 17
Ischemic Heart Disease 64
Depression 30
Chronic Kidney Disease 75
Asthma 10
Osteoperosis 4
Atrial Fibrilation 15
Heart Failure 67
Chronic Obstructive Pulmonary Disease 32
Diabetes 65
Dementia 23
Cancer 10

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Songul Onder, MD treated as a nephrologist in Baltimore, MD during 2018 were hospital care, inpatient care and apheresis.

Volume of procedures performed by Dr. Songul Onder, MD for Medicare patients.

apheresis 29
doctor visit 114
hospital care 728
inpatient care 728

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Songul Onder, MD.

Gender
Male 167
Female 146
Ethnicity
Non-Hispanic White 0
Black 223
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 97
From 75 to 84 52
85 and over 12
Less than 65 152

Conditions of Medicare patients treated by Dr. Songul Onder, MD in 2018

The most common conditions of Medicare patients that Dr. Songul Onder, MD treated during 2018 were chronic kidney disease, hypertension, diabetes and high cholesterol.

Hypertension 75
High Cholesterol 64
Stroke 17
Ischemic Heart Disease 63
Depression 25
Chronic Kidney Disease 75
Asthma 8
Osteoperosis 5
Atrial Fibrilation 18
Heart Failure 62
Chronic Obstructive Pulmonary Disease 31
Diabetes 65
Dementia 19
Cancer 9

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Songul Onder, MD treated as a nephrologist in Baltimore, MD during 2019 were hospital care, inpatient care, apheresis and dialysis.

Volume of procedures performed by Dr. Songul Onder, MD for Medicare patients.

apheresis 46
dialysis 23
doctor visit 99
hospital care 879
inpatient care 879

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Songul Onder, MD.

Gender
Male 182
Female 166
Ethnicity
Non-Hispanic White 0
Black 248
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 109
From 75 to 84 67
85 and over 14
Less than 65 158

Conditions of Medicare patients treated by Dr. Songul Onder, MD in 2019

The most common conditions of Medicare patients that Dr. Songul Onder, MD treated during 2019 were chronic kidney disease, hypertension, high cholesterol and diabetes.

Hypertension 75
High Cholesterol 70
Stroke 18
Ischemic Heart Disease 58
Depression 28
Chronic Kidney Disease 75
Asthma 9
Osteoperosis 4
Atrial Fibrilation 16
Heart Failure 63
Chronic Obstructive Pulmonary Disease 23
Diabetes 64
Dementia 18
Cancer 10

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Songul Onder, MD treated as a nephrologist in Baltimore, MD during 2020 were hospital care, inpatient care and dialysis.

Volume of procedures performed by Dr. Songul Onder, MD for Medicare patients.

dialysis 86
doctor visit 116
hospital care 569
inpatient care 569

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Songul Onder, MD.

Gender
Male 136
Female 144
Ethnicity
Non-Hispanic White 0
Black 195
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 90
From 75 to 84 52
85 and over 13
Less than 65 125

Conditions of Medicare patients treated by Dr. Songul Onder, MD in 2020

The most common conditions of Medicare patients that Dr. Songul Onder, MD treated during 2020 were chronic kidney disease, hypertension, high cholesterol and diabetes.

Hypertension 75
High Cholesterol 69
Stroke 14
Ischemic Heart Disease 60
Depression 31
Chronic Kidney Disease 75
Asthma 10
Osteoperosis 4
Atrial Fibrilation 21
Heart Failure 63
Chronic Obstructive Pulmonary Disease 30
Diabetes 64
Dementia 23
Cancer 8

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Songul Onder, MD treated as a nephrologist in Baltimore, MD during 2021 were hospital care, inpatient care and dialysis.

Volume of procedures performed by Dr. Songul Onder, MD for Medicare patients.

dialysis 101
doctor visit 105
hospital care 424
inpatient care 424

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Songul Onder, MD.

Gender
Male 122
Female 95
Ethnicity
Non-Hispanic White 0
Black 143
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 73
From 75 to 84 0
85 and over 0
Less than 65 89

Conditions of Medicare patients treated by Dr. Songul Onder, MD in 2021

The most common conditions of Medicare patients that Dr. Songul Onder, MD treated during 2021 were chronic kidney disease, hypertension, high cholesterol and diabetes.

Hypertension 75
High Cholesterol 68
Stroke 17
Ischemic Heart Disease 59
Depression 22
Chronic Kidney Disease 75
Asthma 10
Osteoperosis 0
Atrial Fibrilation 16
Heart Failure 61
Chronic Obstructive Pulmonary Disease 24
Diabetes 67
Dementia 17
Cancer 9

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Songul Onder, MD treated as a nephrologist in Baltimore, MD during 2022 were hospital care, inpatient care and dialysis.

Volume of procedures performed by Dr. Songul Onder, MD for Medicare patients.

dialysis 93
doctor visit 43
hospital care 350
inpatient care 350

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Songul Onder, MD.

Gender
Male 104
Female 95
Ethnicity
Non-Hispanic White 0
Black 149
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 63
From 75 to 84 0
85 and over 0
Less than 65 86

Conditions of Medicare patients treated by Dr. Songul Onder, MD in 2022

The most common conditions of Medicare patients that Dr. Songul Onder, MD treated during 2022 were chronic kidney disease, hypertension, high cholesterol and diabetes.

Hypertension 75
High Cholesterol 70
Stroke 23
Ischemic Heart Disease 39
Depression 29
Chronic Kidney Disease 75
Asthma 10
Osteoperosis 7
Atrial Fibrilation 29
Heart Failure 50
Chronic Obstructive Pulmonary Disease 30
Diabetes 61
Dementia 12
Cancer 14

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Songul Onder, MD treated as a nephrologist in Baltimore, MD during 2023 were hospital care, inpatient care and dialysis.

Volume of procedures performed by Dr. Songul Onder, MD for Medicare patients.

dialysis 75
doctor visit 135
hospital care 501
inpatient care 501

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Songul Onder, MD.

Gender
Male 64
Female 85
Ethnicity
Non-Hispanic White 0
Black 103
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 56
From 75 to 84 44
85 and over 0
Less than 65 0

Conditions of Medicare patients treated by Dr. Songul Onder, MD in 2023

The most common conditions of Medicare patients that Dr. Songul Onder, MD treated during 2023 were chronic kidney disease, diabetes, high cholesterol and hypertension.

Hypertension 75
High Cholesterol 75
Stroke 21
Ischemic Heart Disease 47
Depression 36
Chronic Kidney Disease 75
Asthma 17
Osteoperosis 9
Atrial Fibrilation 32
Heart Failure 52
Chronic Obstructive Pulmonary Disease 34
Diabetes 75
Dementia 17
Cancer 16

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2013 - 2023

Volume of procedures performed by Dr. Songul Onder, MD for Medicare patients.

The highest averages for the top procedures that Dr. Songul Onder, MD treated as a nephrologist in Baltimore, MD were hospital care, inpatient care, dialysis and apheresis.

apheresis 37
dialysis 65
doctor visit 130
hospital care 572
inpatient care 572

Average Medicare Patient Data From 2013 - 2023

Information about Medicare patients treated by Dr. Songul Onder, MD.

Gender
Female 152
Male 166
Ethnicity
Black / African American 131
Asian / Pacific Islander 0
Non-Hispanic White 101
Hispanic 0
Native American / Alaskan Native 0
Other 0
Age
85 and over 15
75 to 84 52
Less than 65 121
65 to 74 108

Average of Total of Conditions of Medicare patients treated by Dr. Songul Onder, MD From 2013 - 2023

The highest averages of the most common conditions of Medicare patients that Dr. Songul Onder, MD treated were chronic kidney disease, hypertension, high cholesterol and diabetes.

Hypertension 75
High Cholesterol 70
Stroke 15
Ischemic Heart Disease 60
Depression 31
Chronic Kidney Disease 75
Asthma 15
Osteoporosis 5
Heart Failure 60
Chronic Obstructive Pulmonary Disease 31
Diabetes 65
Atrial Fibrillation 21
Cancer 11
Dementia 16

Education & Training

She completed residency at Istanbul Universitesi, Istanbul Tip Fakultesi. She is certified by the American Board of Internal Medicine - Nephrology, American Board of Internal Medicine - Internal Medicine and has a state license in West Virginia.

Residency: Istanbul Universitesi, Istanbul Tip Fakultesi (2001)

Board Certification: American Board of Internal Medicine - Nephrology, American Board of Internal Medicine - Internal Medicine (2010)

Licensed In: West Virginia

Affiliations & Hospitals

Dr. Songul Onder, MD is associated with these hospitals and organizations:

University of Maryland Medical System
UNIVERSITY OF MARYLAND PHYSICIANS PA

Ratings & Reviews

Dr. Songul Onder, MD has an exceptional overall rating with an average of 4.81 out of 5 stars based on 48 ratings. We collect ratings and reviews of Dr. Songul Onder, MD from all over the web to help you find the right in Baltimore, MD. 

4.81
Overall Rating
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General Payments

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

Payments by Company
Otsuka America Pharmaceutical, Inc. $313 JYNARQUE
$313
Aurinia Pharma U.S., Inc. $312 LUPKYNIS
$312
Bard Peripheral Vascular, Inc. $247
$247
AstraZeneca Pharmaceuticals LP $235 FARXIGA
$128 		LOKELMA
$17
$89
Fresenius USA Marketing, Inc. $172 Velphoro
$103
$69
Other $1,112 VELTASSA
$202 		System One
$134 		Baxter
$90 		Sensipar
$78 		ACTHAR
$73 		Other
$535
Types of Payments
Food and Beverage $2,383
Education $8

Biography

Dr. Songul Onder is an adult nephrology specialist in Baltimore, MD. Her medical residency was performed at a hospital affiliated with West Virginia University. Clinical interests for Dr. Onder include obesity, glomerulonephritis, and hypertension (high blood pressure). She has a 5.0 out of 5 star average patient rating. In addition to English, she speaks Turkish. Dr. Onder is professionally affiliated with the University of Maryland Medical System.

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