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Dr. Aiman Sami Shammas, MD

(Dr. Aiman S. Shammas, MD)

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Specializes in: Adult Nephrology

University of Damascus Faculty of Medicine (1995)

Professional interests include: acute kidney injury (AKI), percutaneous nephrolithotomy (PCNL), creatinine clearance test, and more.

9000 Franklin Square Drive
Baltimore, MD 21237

(443) 777-7000

Dr. Aiman Sami Shammas, MD is a nephrologist in Baltimore, MD specializing in adult nephrology. He graduated from University of Damascus Faculty of Medicine in 1995 and has 31 years of experience. Dr. Aiman Sami Shammas, MD is affiliated with University of Maryland Medical System, MedStar Franklin Square Medical Center and MedStar Health.

Office Locations

University of Maryland Medical System

6830 Hospital Drive Suite 204
Baltimore, MD 21237

(443) 559-5063

(443) 559-5078

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MedStar Health

9000 Franklin Square Drive
Baltimore, MD 21237

(443) 777-7000

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Some issues Dr. Aiman Sami Shammas, 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.

Kidney Stones

Kidney stones are hard deposits that form in the kidneys, made up of minerals that are normally present in urine. They can vary in size, from as small as a grain of sand to as large as a nickel, occasionally even larger. Sometimes they lodge in the kidney, and sometimes they break free and make their way out through the urinary tract, which can be extremely painful.

Kidney stones can be smooth or jagged and are yellow to brown in color. They are mostly comprised of the minerals calcium, oxalate, and phosphorus. Examining the stones to see what they are made of can show what caused the stone to be formed in the first place. For example, a stone made of mostly calcium, which is the most common type, can happen any time the urine becomes too concentrated due to dehydration or a blockage in the kidney. A uric acid stone forms when acid levels in the urine get too high, usually due to excessive consumption of animal protein such as meat and fish. A struvite stone is a sign of certain infections, and a cystine stone can be due to a genetic disorder that raises the risk of kidney stones.

The most common symptom of kidney stones is pain, either in the back or lower abdomen, or severe pain when urinating. There may also be blood in the urine. Treatment for kidney stones depends on how large the stone is. Very small stones can pass out of the body on their own, and they do not require treatment other than drinking adequate water and taking pain killers. Larger stones need to be broken apart and removed. The main treatment options are:

Shock wave lithotripsy, which uses sound wave vibrations to break apart the stone
Percutaneous nephrolithotomy, or the use of a very tiny tool (like a wire inserted through the back) to break apart and remove the stone
Ureteroscopy, a thin tube inserted through the urethra and bladder to the stone, where tiny tools can grasp the stone and remove

People who have had one kidney stone are at risk of developing another. To reduce this risk, patients are given instructions specific to the type of stone they developed. Generally the instructions will include drinking more water to dilute the urine, but it may also involve lowering sodium intake or eating less meat.

Noteworthy Medicare Patient Procedures Performed by Dr. Aiman Sami Shammas, MD in 2023

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

Top 5%

By Volume:

dialysis

In 2023, Dr. Aiman Sami Shammas, MD performed more dialysis procedures for Medicare patients than 95% of providers in related specialties within Maryland.

Top 25%

By Volume:

inpatient hospital care

By Affordability:

hemodialysis

In 2012, among providers in related specialties within Maryland, Dr. Aiman Sami Shammas, MD performed more inpatient hospital care (for patient admitted to hospital) 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. Aiman Sami Shammas, MD treated as a nephrologist in Baltimore, MD during 2012 were hospital care, inpatient care, dialysis and lab tests.

Volume of procedures performed by Dr. Aiman Sami Shammas, MD for Medicare patients.

dialysis	586
doctor visit	396
hemofiltration	56
hospital care	1770
inpatient care	1770
lab tests	242

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Aiman Sami Shammas, MD treated as a nephrologist in Baltimore, MD during 2013 were hospital care, inpatient care, dialysis and hemofiltration.

Volume of procedures performed by Dr. Aiman Sami Shammas, MD for Medicare patients.

dialysis	853
doctor visit	357
hemofiltration	79
hospital care	1584
inpatient care	1584
lab tests	40

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Aiman Sami Shammas, MD.

**Gender**
Male	374
Female	339

**Ethnicity**
Non-Hispanic White	516
Black	172
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	243
From 75 to 84	198
85 and over	94
Less than 65	178

Conditions of Medicare patients treated by Dr. Aiman Sami Shammas, MD in 2013

Hypertension	75
High Cholesterol	75
Stroke	15
Ischemic Heart Disease	72
Depression	38
Chronic Kidney Disease	75
Asthma	13
Osteoperosis	9
Atrial Fibrilation	29
Heart Failure	64
Chronic Obstructive Pulmonary Disease	46
Diabetes	68
Dementia	22
Cancer	15

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Aiman Sami Shammas, MD treated as a nephrologist in Baltimore, MD during 2014 were hospital care, inpatient care, dialysis and hemofiltration.

Volume of procedures performed by Dr. Aiman Sami Shammas, MD for Medicare patients.

dialysis	782
doctor visit	389
hemofiltration	37
hospital care	1692
inpatient care	1692

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Aiman Sami Shammas, MD.

**Gender**
Male	426
Female	343

**Ethnicity**
Non-Hispanic White	557
Black	187
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	237
From 75 to 84	217
85 and over	100
Less than 65	215

Conditions of Medicare patients treated by Dr. Aiman Sami Shammas, MD in 2014

Hypertension	75
High Cholesterol	73
Stroke	15
Ischemic Heart Disease	68
Depression	35
Chronic Kidney Disease	75
Asthma	11
Osteoperosis	7
Atrial Fibrilation	28
Heart Failure	63
Chronic Obstructive Pulmonary Disease	39
Diabetes	66
Dementia	18
Cancer	15

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

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

Volume of procedures performed by Dr. Aiman Sami Shammas, MD for Medicare patients.

dialysis	657
doctor visit	320
hospital care	1263
inpatient care	1263

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Aiman Sami Shammas, MD.

**Gender**
Male	684
Female	658

**Ethnicity**
Non-Hispanic White	974
Black	316
Hispanic	22
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	442
From 75 to 84	434
85 and over	158
Less than 65	308

Conditions of Medicare patients treated by Dr. Aiman Sami Shammas, MD in 2015

Hypertension	75
High Cholesterol	75
Stroke	18
Ischemic Heart Disease	69
Depression	37
Chronic Kidney Disease	75
Asthma	22
Osteoperosis	8
Atrial Fibrilation	26
Heart Failure	63
Chronic Obstructive Pulmonary Disease	38
Diabetes	65
Dementia	21
Cancer	14

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Aiman Sami Shammas, MD treated as a nephrologist in Baltimore, MD during 2016 were hospital care, inpatient care, dialysis and hemofiltration.

Volume of procedures performed by Dr. Aiman Sami Shammas, MD for Medicare patients.

dialysis	700
doctor visit	303
hemofiltration	28
hospital care	1413
inpatient care	1413

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Aiman Sami Shammas, MD.

**Gender**
Male	370
Female	342

**Ethnicity**
Non-Hispanic White	512
Black	171
Hispanic	0
Asian	12
Other	0
Native American	0

**Age**
From 65 to 74	241
From 75 to 84	196
85 and over	110
Less than 65	165

Conditions of Medicare patients treated by Dr. Aiman Sami Shammas, MD in 2016

Hypertension	75
High Cholesterol	74
Stroke	13
Ischemic Heart Disease	71
Depression	37
Chronic Kidney Disease	75
Asthma	38
Osteoperosis	4
Atrial Fibrilation	28
Heart Failure	65
Chronic Obstructive Pulmonary Disease	38
Diabetes	64
Dementia	23
Cancer	12

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Aiman Sami Shammas, MD treated as a nephrologist in Baltimore, MD during 2017 were hospital care, inpatient care, dialysis and hemofiltration.

Volume of procedures performed by Dr. Aiman Sami Shammas, MD for Medicare patients.

dialysis	434
doctor visit	333
hemofiltration	48
hospital care	932
inpatient care	932

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Aiman Sami Shammas, MD.

**Gender**
Male	324
Female	306

**Ethnicity**
Non-Hispanic White	433
Black	179
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	219
From 75 to 84	165
85 and over	82
Less than 65	164

Conditions of Medicare patients treated by Dr. Aiman Sami Shammas, MD in 2017

Hypertension	75
High Cholesterol	69
Stroke	13
Ischemic Heart Disease	73
Depression	39
Chronic Kidney Disease	75
Asthma	9
Osteoperosis	6
Atrial Fibrilation	31
Heart Failure	65
Chronic Obstructive Pulmonary Disease	40
Diabetes	62
Dementia	28
Cancer	13

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Aiman Sami Shammas, MD treated as a nephrologist in Baltimore, MD during 2018 were hospital care, inpatient care, dialysis and hemofiltration.

Volume of procedures performed by Dr. Aiman Sami Shammas, MD for Medicare patients.

dialysis	491
doctor visit	297
hemofiltration	41
hospital care	1098
inpatient care	1098

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Aiman Sami Shammas, MD.

**Gender**
Male	327
Female	309

**Ethnicity**
Non-Hispanic White	438
Black	173
Hispanic	0
Asian	12
Other	0
Native American	0

**Age**
From 65 to 74	206
From 75 to 84	207
85 and over	72
Less than 65	151

Conditions of Medicare patients treated by Dr. Aiman Sami Shammas, MD in 2018

Hypertension	75
High Cholesterol	75
Stroke	17
Ischemic Heart Disease	71
Depression	41
Chronic Kidney Disease	75
Asthma	7
Osteoperosis	6
Atrial Fibrilation	27
Heart Failure	64
Chronic Obstructive Pulmonary Disease	33
Diabetes	64
Dementia	27
Cancer	12

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Aiman Sami Shammas, MD treated as a nephrologist in Baltimore, MD during 2019 were hospital care, inpatient care, dialysis and hemofiltration.

Volume of procedures performed by Dr. Aiman Sami Shammas, MD for Medicare patients.

dialysis	370
doctor visit	335
hemofiltration	45
hospital care	954
inpatient care	954

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Aiman Sami Shammas, MD.

**Gender**
Male	336
Female	283

**Ethnicity**
Non-Hispanic White	417
Black	179
Hispanic	0
Asian	11
Other	0
Native American	0

**Age**
From 65 to 74	210
From 75 to 84	167
85 and over	92
Less than 65	150

Conditions of Medicare patients treated by Dr. Aiman Sami Shammas, MD in 2019

Hypertension	75
High Cholesterol	75
Stroke	16
Ischemic Heart Disease	73
Depression	38
Chronic Kidney Disease	75
Asthma	7
Osteoperosis	7
Atrial Fibrilation	30
Heart Failure	63
Chronic Obstructive Pulmonary Disease	32
Diabetes	63
Dementia	24
Cancer	14

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Aiman Sami Shammas, MD treated as a nephrologist in Baltimore, MD during 2020 were hospital care, inpatient care, dialysis and hemofiltration.

Volume of procedures performed by Dr. Aiman Sami Shammas, MD for Medicare patients.

dialysis	352
doctor visit	295
hemofiltration	59
hospital care	1192
inpatient care	1192

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Aiman Sami Shammas, MD.

**Gender**
Male	342
Female	306

**Ethnicity**
Non-Hispanic White	403
Black	215
Hispanic	0
Asian	14
Other	0
Native American	0

**Age**
From 65 to 74	235
From 75 to 84	186
85 and over	84
Less than 65	143

Conditions of Medicare patients treated by Dr. Aiman Sami Shammas, MD in 2020

Hypertension	75
High Cholesterol	75
Stroke	17
Ischemic Heart Disease	75
Depression	38
Chronic Kidney Disease	75
Asthma	7
Osteoperosis	7
Atrial Fibrilation	29
Heart Failure	65
Chronic Obstructive Pulmonary Disease	31
Diabetes	63
Dementia	27
Cancer	11

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Aiman Sami Shammas, MD treated as a nephrologist in Baltimore, MD during 2021 were hospital care, inpatient care, dialysis and hemofiltration.

Volume of procedures performed by Dr. Aiman Sami Shammas, MD for Medicare patients.

dialysis	307
doctor visit	347
hemofiltration	52
hospital care	1193
inpatient care	1193

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Aiman Sami Shammas, MD.

**Gender**
Male	346
Female	345

**Ethnicity**
Non-Hispanic White	450
Black	193
Hispanic	0
Asian	19
Other	0
Native American	0

**Age**
From 65 to 74	249
From 75 to 84	212
85 and over	86
Less than 65	144

Conditions of Medicare patients treated by Dr. Aiman Sami Shammas, MD in 2021

Hypertension	75
High Cholesterol	75
Stroke	14
Ischemic Heart Disease	74
Depression	37
Chronic Kidney Disease	75
Asthma	9
Osteoperosis	7
Atrial Fibrilation	29
Heart Failure	65
Chronic Obstructive Pulmonary Disease	30
Diabetes	63
Dementia	28
Cancer	11

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Aiman Sami Shammas, MD treated as a nephrologist in Baltimore, MD during 2022 were hospital care, inpatient care, dialysis and hemofiltration.

Volume of procedures performed by Dr. Aiman Sami Shammas, MD for Medicare patients.

dialysis	443
doctor visit	337
hemofiltration	118
hospital care	1261
inpatient care	1261

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Aiman Sami Shammas, MD.

**Gender**
Male	336
Female	335

**Ethnicity**
Non-Hispanic White	432
Black	198
Hispanic	0
Asian	0
Other	20
Native American	0

**Age**
From 65 to 74	231
From 75 to 84	217
85 and over	93
Less than 65	130

Conditions of Medicare patients treated by Dr. Aiman Sami Shammas, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	26
Ischemic Heart Disease	60
Depression	42
Chronic Kidney Disease	75
Asthma	11
Osteoperosis	10
Atrial Fibrilation	43
Heart Failure	60
Chronic Obstructive Pulmonary Disease	35
Diabetes	65
Dementia	20
Cancer	19

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Aiman Sami Shammas, MD treated as a nephrologist in Baltimore, MD during 2023 were hospital care, inpatient care, dialysis and hemofiltration.

Volume of procedures performed by Dr. Aiman Sami Shammas, MD for Medicare patients.

dialysis	420
doctor visit	402
hemofiltration	52
hospital care	1106
inpatient care	1106

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Aiman Sami Shammas, MD.

**Gender**
Male	290
Female	283

**Ethnicity**
Non-Hispanic White	372
Black	170
Hispanic	0
Asian	0
Other	13
Native American	0

**Age**
From 65 to 74	200
From 75 to 84	204
85 and over	54
Less than 65	115

Conditions of Medicare patients treated by Dr. Aiman Sami Shammas, MD in 2023

Hypertension	75
High Cholesterol	75
Stroke	27
Ischemic Heart Disease	61
Depression	39
Chronic Kidney Disease	75
Asthma	13
Osteoperosis	10
Atrial Fibrilation	42
Heart Failure	61
Chronic Obstructive Pulmonary Disease	38
Diabetes	66
Dementia	20
Cancer	21

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Volume of procedures performed by Dr. Aiman Sami Shammas, MD for Medicare patients.

The highest averages for the top procedures that Dr. Aiman Sami Shammas, MD treated as a nephrologist in Baltimore, MD were hospital care, inpatient care, dialysis and lab tests.

dialysis	532
doctor visit	342
hemofiltration	55
hospital care	1288
inpatient care	1288
lab tests	141

Average Medicare Patient Data From 2012 - 2023

Information about Medicare patients treated by Dr. Aiman Sami Shammas, MD.

**Gender**
Male	346
Female	320

**Ethnicity**
Black / African American	179
Asian / Pacific Islander	5
Non-Hispanic White	458
Hispanic	1
Native American / Alaskan Native	0
Other	2

**Age**
75 to 84	200
85 and over	85
Less than 65	155
65 to 74	226

Average of Total of Conditions of Medicare patients treated by Dr. Aiman Sami Shammas, MD From 2012 - 2023

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

Hypertension	68
High Cholesterol	68
Stroke	15
Ischemic Heart Disease	63
Depression	35
Chronic Kidney Disease	68
Asthma	12
Osteoporosis	6
Heart Failure	58
Chronic Obstructive Pulmonary Disease	33
Diabetes	59
Atrial Fibrillation	28
Cancer	13
Dementia	21

Education & Training

Dr. Aiman Sami Shammas, MD graduated from University of Damascus Faculty of Medicine in 1995. He completed residency at University of Damascus Affiliated Hospitals. He is certified by the American Board of Internal Medicine - Nephrology, American Board of Internal Medicine - Internal Medicine and has a state license in Maryland.

Medical School: University of Damascus Faculty of Medicine (1995)

Residency: University of Damascus Affiliated Hospitals (1999)

Board Certification: American Board of Internal Medicine - Nephrology, American Board of Internal Medicine - Internal Medicine (2007)

Licensed In: Maryland

Affiliations & Hospitals

Dr. Aiman Sami Shammas, MD is associated with these hospitals and organizations:

University of Maryland Medical System

MedStar Franklin Square Medical Center

MedStar Health

Ratings & Reviews

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General Payments

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

**Payments by Company**
Amgen Inc.	$113 Sensipar $113
SANOFI-AVENTIS U.S. LLC	$104 RENVELA $79	FABRAZYME $25
Bayer HealthCare Pharmaceuticals Inc.	$98 Kerendia $98
Fresenius USA Marketing, Inc.	$94 Velphoro $79	Venofer $15
E.R. Squibb & Sons, L.L.C.	$93 ELIQUIS $93
Other	$651 VELTASSA $143	Auryxia $124	KRYSTEXXA $67	ACTHAR $66	LOKELMA $62	Other $189

**Types of Payments**
Food and Beverage	$1,091
Education	$62

Biography

Dr. Aiman Shammas specializes in adult nephrology. He obtained his medical school training at the University of Damascus Faculty of Medicine and performed his residency at Franklin Square Hospital Center and a hospital affiliated with the University of Damascus. His areas of expertise include the following: laser lithotripsy, lupus nephritis, and percutaneous nephrolithotomy (PCNL). Dr. Shammas speaks Arabic. He is affiliated with the University of Maryland Medical System and MedStar Franklin Square Medical Center.