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Dr. Gregory J. Merten, MD

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Specializes in: Adult Nephrology

University of Minnesota Medical School

Professional interests include: electrolyte disorders, hypertension (high blood pressure), dialysis, and more.

10710 Sikes Place Suite 100
Charlotte, NC 28277

(704) 248-5101

Dr. Gregory J. Merten, MD is a nephrologist in Charlotte, NC specializing in adult nephrology. He graduated from University of Minnesota Medical School. Dr. Gregory J. Merten, MD is affiliated with Novant Health and Metrolina Nephrology Associates.

Office Locations

Metrolina Nephrology Associates

10710 Sikes Place Suite 100
Charlotte, NC 28277

(704) 248-5101

(704) 248-5120

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Some issues Dr. Gregory J. Merten, MD can help you with:

Acute Kidney Failure

Kidney failure is when 80% to 90% of kidney function is lost. Kidney failure is also referred to as end-stage renal disease (ESRD). Kidneys are critical to human health, essentially acting as the body's built-in filtration system. When the kidneys can no longer function effectively, waste can accumulate in the blood and concentrations of nutrients can become unbalanced, impairing the body from performing critical functions. For example, if the kidneys do not regulate levels of potassium, the heart may develop arrhythmias (irregular rhythm) or even go into cardiac arrest.

Kidney failure may be caused by a number of health conditions that slowly damage and weaken the kidneys, such as:

Diabetes
High blood pressure
Urinary tract problems
Excessive alcohol consumption
Persistent and severe dehydration
Lupus
Acute kidney injury (AKI)

High blood pressure and diabetes are the most frequently observed causes of kidney failure. However, these conditions typically take years to develop into kidney failure and might escape notice during that time.

Symptoms of kidney failure include:

Difficulty sleeping
Fatigue
Reduced appetite
Weight loss
Edema (water retention)
Ankle and foot swelling
Anemia
Itching
Muscle cramps

No cure currently exists for kidney failure; however, medical treatment can permit people to live healthy and long lives. A nephrologist (kidney doctor) determines the most effective treatments for patients with kidney failure.

Dialysis is a well-known treatment for kidney failure that uses a machine to filter and clean waste from the blood. Patients attend regular dialysis sessions to replace their lost kidney function. Some patients with kidney failure are unable to survive without having dialysis every few days.

More advanced kidney failure may be treated by kidney transplant surgery. Deceased donor kidney transplant surgery provides kidney failure patients with a healthy kidney from a recently deceased person. Living donor kidney transplant surgery provides a kidney from a donor who is still alive. As most people have two kidneys, kidney failure patients' relatives or friends may offer to donate one of their kidneys. Kidney transplants can dramatically improve kidney function and lower or eliminate the need for dialysis.

People with kidney failure are advised to eat a nutritious diet, monitor and lower blood pressure, and to best manage diabetes. Exercise and a tobacco-free lifestyle may also help patients with kidney failure.

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.

Noteworthy Medicare Patient Procedures Performed by Dr. Gregory J. Merten, MD in 2024

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

Top 5%

By Affordability:

complement tests

total protein test

total protein urine test

vitamin D test

In 2024, Dr. Gregory J. Merten, MD had a list price for complement tests, total protein test, total protein urine test, and vitamin D test that was lower than the list prices billed to Medicare by 95% of providers in related specialties within North Carolina. 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.

Top 10%

By Affordability:

complete blood count

In 2024, Dr. Gregory J. Merten, MD had a list price for complete blood count (CBC) that was lower than the list prices billed to Medicare by 90% of providers in related specialties within North Carolina. 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.

Top 25%

By Volume:

chronic care

creatinine urine test

lab tests

total protein urine test

By Affordability:

blood count tests

In 2012, among providers in related specialties within North Carolina, Dr. Gregory J. Merten, MD performed more chronic care, creatinine urine test, lab tests, and total protein urine test procedures for Medicare patients than 75% of them and he also had a list price for blood count tests 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. Gregory J. Merten, MD treated as a nephrologist in Charlotte, NC during 2012 were hospital care, inpatient care, dialysis and lab tests.

Volume of procedures performed by Dr. Gregory J. Merten, MD for Medicare patients.

dialysis	631
doctor visit	414
hospital care	663
inpatient care	663
lab tests	86
preventive care	19
vaccines	19

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Gregory J. Merten, MD treated as a nephrologist in Charlotte, NC during 2013 were lab tests, dialysis, hospital care and inpatient care.

Volume of procedures performed by Dr. Gregory J. Merten, MD for Medicare patients.

blood draw	160
dialysis	682
doctor visit	385
hemofiltration	54
hospital care	640
inpatient care	640
lab tests	1020

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory J. Merten, MD.

**Gender**
Male	391
Female	342

**Ethnicity**
Non-Hispanic White	384
Black	306
Hispanic	18
Asian	14
Other	0
Native American	0

**Age**
From 65 to 74	217
From 75 to 84	186
85 and over	58
Less than 65	272

Conditions of Medicare patients treated by Dr. Gregory J. Merten, MD in 2013

Hypertension	75
High Cholesterol	67
Stroke	13
Ischemic Heart Disease	54
Depression	26
Chronic Kidney Disease	75
Asthma	9
Osteoperosis	9
Atrial Fibrilation	20
Heart Failure	52
Chronic Obstructive Pulmonary Disease	24
Diabetes	60
Dementia	12
Cancer	11

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Gregory J. Merten, MD treated as a nephrologist in Charlotte, NC during 2014 were lab tests, hospital care, inpatient care and dialysis.

Volume of procedures performed by Dr. Gregory J. Merten, MD for Medicare patients.

blood draw	357
dialysis	551
doctor visit	380
hemofiltration	43
hospital care	714
inpatient care	714
lab tests	2453
preventive care	13
vaccines	13

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory J. Merten, MD.

**Gender**
Male	396
Female	347

**Ethnicity**
Non-Hispanic White	375
Black	322
Hispanic	21
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	247
From 75 to 84	171
85 and over	64
Less than 65	261

Conditions of Medicare patients treated by Dr. Gregory J. Merten, MD in 2014

Hypertension	75
High Cholesterol	72
Stroke	12
Ischemic Heart Disease	52
Depression	26
Chronic Kidney Disease	75
Asthma	10
Osteoperosis	6
Atrial Fibrilation	20
Heart Failure	52
Chronic Obstructive Pulmonary Disease	23
Diabetes	63
Dementia	16
Cancer	11

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Gregory J. Merten, MD treated as a nephrologist in Charlotte, NC during 2015 were lab tests, dialysis, hospital care and inpatient care.

Volume of procedures performed by Dr. Gregory J. Merten, MD for Medicare patients.

blood draw	348
dialysis	574
doctor visit	332
hospital care	572
inpatient care	572
lab tests	2477
preventive care	17
vaccines	17

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory J. Merten, MD.

**Gender**
Male	788
Female	708

**Ethnicity**
Non-Hispanic White	752
Black	644
Hispanic	40
Asian	38
Other	0
Native American	0

**Age**
From 65 to 74	508
From 75 to 84	344
85 and over	104
Less than 65	540

Conditions of Medicare patients treated by Dr. Gregory J. Merten, MD in 2015

Hypertension	75
High Cholesterol	70
Stroke	11
Ischemic Heart Disease	52
Depression	28
Chronic Kidney Disease	75
Asthma	17
Osteoperosis	9
Atrial Fibrilation	20
Heart Failure	50
Chronic Obstructive Pulmonary Disease	25
Diabetes	59
Dementia	14
Cancer	10

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Gregory J. Merten, MD treated as a nephrologist in Charlotte, NC during 2016 were lab tests, dialysis, blood draw and hospital care.

Volume of procedures performed by Dr. Gregory J. Merten, MD for Medicare patients.

blood draw	455
dialysis	645
doctor visit	380
hemofiltration	59
hospital care	342
inpatient care	342
lab tests	2999
potassium test	13
preventive care	33

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory J. Merten, MD.

**Gender**
Male	412
Female	346

**Ethnicity**
Non-Hispanic White	387
Black	316
Hispanic	24
Asian	20
Other	0
Native American	0

**Age**
From 65 to 74	249
From 75 to 84	153
85 and over	70
Less than 65	286

Conditions of Medicare patients treated by Dr. Gregory J. Merten, MD in 2016

Hypertension	75
High Cholesterol	71
Stroke	10
Ischemic Heart Disease	49
Depression	28
Chronic Kidney Disease	75
Asthma	27
Osteoperosis	7
Atrial Fibrilation	20
Heart Failure	50
Chronic Obstructive Pulmonary Disease	25
Diabetes	60
Dementia	16
Cancer	9

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Gregory J. Merten, MD treated as a nephrologist in Charlotte, NC during 2017 were lab tests, dialysis, blood draw and hospital care.

Volume of procedures performed by Dr. Gregory J. Merten, MD for Medicare patients.

abdominal imaging	18
blood draw	441
dialysis	518
doctor visit	340
hospital care	435
inpatient care	435
lab tests	2523
ultrasound (sonogram)	18

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory J. Merten, MD.

**Gender**
Male	377
Female	324

**Ethnicity**
Non-Hispanic White	334
Black	312
Hispanic	23
Asian	0
Other	16
Native American	0

**Age**
From 65 to 74	239
From 75 to 84	144
85 and over	57
Less than 65	261

Conditions of Medicare patients treated by Dr. Gregory J. Merten, MD in 2017

Hypertension	75
High Cholesterol	67
Stroke	8
Ischemic Heart Disease	48
Depression	27
Chronic Kidney Disease	75
Asthma	10
Osteoperosis	6
Atrial Fibrilation	21
Heart Failure	52
Chronic Obstructive Pulmonary Disease	24
Diabetes	62
Dementia	15
Cancer	8

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Gregory J. Merten, MD treated as a nephrologist in Charlotte, NC during 2018 were lab tests, blood draw, dialysis and hospital care.

Volume of procedures performed by Dr. Gregory J. Merten, MD for Medicare patients.

abdominal imaging	45
blood draw	514
dialysis	440
doctor visit	383
hospital care	373
inpatient care	373
lab tests	3084
ultrasound (sonogram)	45

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory J. Merten, MD.

**Gender**
Male	419
Female	313

**Ethnicity**
Non-Hispanic White	360
Black	306
Hispanic	28
Asian	0
Other	20
Native American	0

**Age**
From 65 to 74	244
From 75 to 84	166
85 and over	64
Less than 65	258

Conditions of Medicare patients treated by Dr. Gregory J. Merten, MD in 2018

Hypertension	75
High Cholesterol	71
Stroke	11
Ischemic Heart Disease	50
Depression	25
Chronic Kidney Disease	75
Asthma	10
Osteoperosis	6
Atrial Fibrilation	21
Heart Failure	51
Chronic Obstructive Pulmonary Disease	22
Diabetes	62
Dementia	15
Cancer	10

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Gregory J. Merten, MD treated as a nephrologist in Charlotte, NC during 2019 were lab tests, dialysis, blood draw and hospital care.

Volume of procedures performed by Dr. Gregory J. Merten, MD for Medicare patients.

abdominal imaging	38
blood draw	492
dialysis	513
doctor visit	342
hemofiltration	30
hospital care	394
inpatient care	394
lab tests	3062
ultrasound (sonogram)	38

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory J. Merten, MD.

**Gender**
Male	418
Female	332

**Ethnicity**
Non-Hispanic White	377
Black	312
Hispanic	25
Asian	22
Other	0
Native American	0

**Age**
From 65 to 74	247
From 75 to 84	185
85 and over	55
Less than 65	263

Conditions of Medicare patients treated by Dr. Gregory J. Merten, MD in 2019

Hypertension	75
High Cholesterol	73
Stroke	10
Ischemic Heart Disease	51
Depression	31
Chronic Kidney Disease	75
Asthma	9
Osteoperosis	6
Atrial Fibrilation	19
Heart Failure	53
Chronic Obstructive Pulmonary Disease	24
Diabetes	60
Dementia	16
Cancer	11

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Gregory J. Merten, MD treated as a nephrologist in Charlotte, NC during 2020 were lab tests, blood draw, hospital care and inpatient care.

Volume of procedures performed by Dr. Gregory J. Merten, MD for Medicare patients.

blood draw	430
dialysis	413
doctor visit	261
hemofiltration	37
hospital care	415
inpatient care	415
lab tests	2614

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory J. Merten, MD.

**Gender**
Male	395
Female	263

**Ethnicity**
Non-Hispanic White	343
Black	258
Hispanic	19
Asian	21
Other	0
Native American	0

**Age**
From 65 to 74	214
From 75 to 84	188
85 and over	65
Less than 65	191

Conditions of Medicare patients treated by Dr. Gregory J. Merten, MD in 2020

Hypertension	75
High Cholesterol	75
Stroke	13
Ischemic Heart Disease	52
Depression	28
Chronic Kidney Disease	75
Asthma	7
Osteoperosis	7
Atrial Fibrilation	21
Heart Failure	48
Chronic Obstructive Pulmonary Disease	22
Diabetes	62
Dementia	18
Cancer	12

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Gregory J. Merten, MD treated as a nephrologist in Charlotte, NC during 2021 were lab tests, blood draw, dialysis and hospital care.

Volume of procedures performed by Dr. Gregory J. Merten, MD for Medicare patients.

blood draw	392
dialysis	363
doctor visit	327
hospital care	358
inpatient care	358
lab tests	2548

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory J. Merten, MD.

**Gender**
Male	317
Female	270

**Ethnicity**
Non-Hispanic White	356
Black	177
Hispanic	17
Asian	17
Other	20
Native American	0

**Age**
From 65 to 74	192
From 75 to 84	196
85 and over	58
Less than 65	141

Conditions of Medicare patients treated by Dr. Gregory J. Merten, MD in 2021

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	52
Depression	29
Chronic Kidney Disease	75
Asthma	8
Osteoperosis	6
Atrial Fibrilation	19
Heart Failure	43
Chronic Obstructive Pulmonary Disease	20
Diabetes	59
Dementia	18
Cancer	11

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Gregory J. Merten, MD treated as a nephrologist in Charlotte, NC during 2022 were lab tests, hospital care, inpatient care and blood draw.

Volume of procedures performed by Dr. Gregory J. Merten, MD for Medicare patients.

blood draw	238
dialysis	230
doctor visit	305
hemofiltration	25
hospital care	239
inpatient care	239
lab tests	1881

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory J. Merten, MD.

**Gender**
Male	281
Female	231

**Ethnicity**
Non-Hispanic White	323
Black	133
Hispanic	20
Asian	17
Other	19
Native American	0

**Age**
From 65 to 74	151
From 75 to 84	189
85 and over	66
Less than 65	106

Conditions of Medicare patients treated by Dr. Gregory J. Merten, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	14
Ischemic Heart Disease	42
Depression	26
Chronic Kidney Disease	75
Asthma	8
Osteoperosis	12
Atrial Fibrilation	32
Heart Failure	41
Chronic Obstructive Pulmonary Disease	24
Diabetes	60
Dementia	14
Cancer	19

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Gregory J. Merten, MD treated as a nephrologist in Charlotte, NC during 2023 were lab tests, blood draw, hospital care and inpatient care.

Volume of procedures performed by Dr. Gregory J. Merten, MD for Medicare patients.

blood draw	265
chronic care	27
dialysis	164
doctor visit	333
hemofiltration	32
hospital care	194
inpatient care	194
lab tests	2269

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory J. Merten, MD.

**Gender**
Male	272
Female	233

**Ethnicity**
Non-Hispanic White	313
Black	134
Hispanic	23
Asian	12
Other	23
Native American	0

**Age**
From 65 to 74	154
From 75 to 84	201
85 and over	50
Less than 65	100

Conditions of Medicare patients treated by Dr. Gregory J. Merten, MD in 2023

Hypertension	75
High Cholesterol	75
Stroke	15
Ischemic Heart Disease	44
Depression	29
Chronic Kidney Disease	75
Asthma	10
Osteoperosis	10
Atrial Fibrilation	30
Heart Failure	42
Chronic Obstructive Pulmonary Disease	21
Diabetes	59
Dementia	12
Cancer	22

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. Gregory J. Merten, MD treated as a nephrologist in Charlotte, NC during 2024 were lab tests, blood draw, chronic care and hospital care.

Volume of procedures performed by Dr. Gregory J. Merten, MD for Medicare patients.

blood draw	373
chronic care	192
dialysis	45
doctor visit	410
hospital care	137
inpatient care	137
lab tests	1857

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory J. Merten, MD.

**Gender**
Male	249
Female	194

**Ethnicity**
Non-Hispanic White	299
Black	96
Hispanic	16
Asian	14
Other	18
Native American	0

**Age**
From 65 to 74	140
From 75 to 84	189
85 and over	44
Less than 65	70

Conditions of Medicare patients treated by Dr. Gregory J. Merten, MD in 2024

Hypertension	75
High Cholesterol	75
Stroke	14
Ischemic Heart Disease	40
Depression	26
Chronic Kidney Disease	75
Asthma	9
Osteoperosis	10
Atrial Fibrilation	31
Heart Failure	36
Chronic Obstructive Pulmonary Disease	17
Diabetes	57
Dementia	9
Cancer	25

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. Gregory J. Merten, MD for Medicare patients.

The highest averages for the top procedures that Dr. Gregory J. Merten, MD treated as a nephrologist in Charlotte, NC were lab tests, dialysis, hospital care and inpatient care.

abdominal imaging	33
blood draw	372
chronic care	109
dialysis	443
doctor visit	353
hemofiltration	40
hospital care	421
inpatient care	421
lab tests	2221
potassium test	13
preventive care	20
ultrasound (sonogram)	33
vaccines	16

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Gregory J. Merten, MD.

**Gender**
Female	300
Male	362

**Ethnicity**
Black / African American	255
Asian / Pacific Islander	13
Non-Hispanic White	354
Hispanic	21
Native American / Alaskan Native	0
Other	8

**Age**
85 and over	58
75 to 84	177
Less than 65	211
65 to 74	215

Average of Total of Conditions of Medicare patients treated by Dr. Gregory J. Merten, MD From 2012 - 2024

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

Hypertension	69
High Cholesterol	66
Stroke	10
Ischemic Heart Disease	45
Depression	25
Chronic Kidney Disease	69
Asthma	10
Osteoporosis	7
Heart Failure	43
Chronic Obstructive Pulmonary Disease	20
Diabetes	55
Atrial Fibrillation	21
Cancer	12
Dementia	13

Education & Training

Dr. Gregory J. Merten, MD graduated from University of Minnesota Medical School. He completed residency at Carolinas Medical Center. He is certified by the Board certifications: Nephrology and has a state license in North Carolina.

Medical School: University of Minnesota Medical School

Residency: Carolinas Medical Center

Board Certification: Board certifications: Nephrology

Licensed In: North Carolina

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General Payments

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

**Payments by Company**
Otsuka America Pharmaceutical, Inc.	$475 SAMSCA $246	JYNARQUE $211	VOYXACT $18
Mallinckrodt LLC	$468 ACTHAR $468
Amgen Inc.	$254 Tavneos $157	Sensipar $76	Parsabiv $21
GlaxoSmithKline, LLC.	$238 BENLYSTA $238
Bayer HealthCare Pharmaceuticals Inc.	$236 Kerendia $236
Other	$1,643 ACTHAR $153	VELTASSA $147	Auryxia $132	ZEPATIER $125	Renal - PD $103	Other $984

**Types of Payments**
Food and Beverage	$2,877
Education	$351
Gift	$88

Biography

Dr. Gregory Merten is a specialist in adult nephrology. He works in Charlotte, NC. Dr. Merten's areas of expertise include the following: hypertension (high blood pressure), glomerular diseases, and acute kidney failure. He is professionally affiliated with Metrolina Nephrology Associates. He attended medical school at the University of Minnesota Medical School. Dr. Merten completed his residency training at Carolinas Medical Center.