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Dr. Mary A. Pieprzak, MD

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Specializes in: Adult Nephrology

1589 Sulphur Spring Road Suite 109
Baltimore, MD 21227

(410) 772-8822

Dr. Mary A. Pieprzak, MD is a nephrologist in Baltimore, MD specializing in adult nephrology. Dr. Mary A. Pieprzak, MD is affiliated with University of Maryland Medical System, Ascension and Ascension Saint Agnes Hospital.

Office Locations

University of Maryland Medical System

1589 Sulphur Spring Road Suite 109
Baltimore, MD 21227

(410) 772-8822

(410) 772-9274

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5999 Harpers Farm Road Suite W250
Columbia, MD 21044

(410) 772-8822

(410) 772-9274

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Phone: False Mid - Atlantic Nephrology Assoc. (harpers Farm)
5999 Harpers Farm Road Suite W250, Co, MD 21044

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Noteworthy Medicare Patient Procedures Performed by Dr. Mary A. Pieprzak, MD in 2023

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

Top 5%

By Affordability:

creatinine test

creatinine urine test

kidney function tests

urinalysis

In 2023, Dr. Mary A. Pieprzak, MD had a list price for creatinine test, creatinine urine test, kidney function tests, and urinalysis that was lower than the list prices billed to Medicare by 95% of providers in related specialties within Maryland. 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 Volume:

hemodialysis

In 2023, Dr. Mary A. Pieprzak, MD performed more hemodialysis procedures for Medicare patients than 90% of providers in related specialties within Maryland.

Top 25%

By Affordability:

lab tests

urine tests

In 2012, Dr. Mary A. Pieprzak, MD had a list price for lab tests, and urine tests that was lower than the list prices billed to Medicare by 75% of providers in related specialties within Maryland. 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. Mary A. Pieprzak, MD treated as a nephrologist in Baltimore, MD during 2012 were hospital care, inpatient care, lab tests and dialysis.

Volume of procedures performed by Dr. Mary A. Pieprzak, MD for Medicare patients.

dialysis	261
doctor visit	556
hospital care	769
inpatient care	769
lab tests	446

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Mary A. Pieprzak, MD treated as a nephrologist in Baltimore, MD during 2013 were hospital care, inpatient care, lab tests and dialysis.

Volume of procedures performed by Dr. Mary A. Pieprzak, MD for Medicare patients.

dialysis	310
doctor visit	611
hemofiltration	35
hospital care	814
inpatient care	814
lab tests	682
preventive care	11
vaccines	11

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary A. Pieprzak, MD.

**Gender**
Male	338
Female	312

**Ethnicity**
Non-Hispanic White	359
Black	236
Hispanic	0
Asian	31
Other	0
Native American	0

**Age**
From 65 to 74	233
From 75 to 84	216
85 and over	99
Less than 65	102

Conditions of Medicare patients treated by Dr. Mary A. Pieprzak, MD in 2013

Hypertension	75
High Cholesterol	74
Stroke	12
Ischemic Heart Disease	62
Depression	24
Chronic Kidney Disease	75
Asthma	11
Osteoperosis	6
Atrial Fibrilation	23
Heart Failure	49
Chronic Obstructive Pulmonary Disease	22
Diabetes	62
Dementia	22
Cancer	14

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Mary A. Pieprzak, MD treated as a nephrologist in Baltimore, MD during 2014 were hospital care, inpatient care, lab tests and dialysis.

Volume of procedures performed by Dr. Mary A. Pieprzak, MD for Medicare patients.

dialysis	274
doctor visit	581
hospital care	805
inpatient care	805
lab tests	712

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary A. Pieprzak, MD.

**Gender**
Male	342
Female	349

**Ethnicity**
Non-Hispanic White	393
Black	243
Hispanic	0
Asian	29
Other	14
Native American	0

**Age**
From 65 to 74	228
From 75 to 84	227
85 and over	114
Less than 65	122

Conditions of Medicare patients treated by Dr. Mary A. Pieprzak, MD in 2014

Hypertension	75
High Cholesterol	71
Stroke	12
Ischemic Heart Disease	59
Depression	26
Chronic Kidney Disease	75
Asthma	11
Osteoperosis	7
Atrial Fibrilation	20
Heart Failure	48
Chronic Obstructive Pulmonary Disease	23
Diabetes	62
Dementia	19
Cancer	13

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Mary A. Pieprzak, MD treated as a nephrologist in Baltimore, MD during 2015 were lab tests, hospital care, inpatient care and dialysis.

Volume of procedures performed by Dr. Mary A. Pieprzak, MD for Medicare patients.

dialysis	215
doctor visit	570
hospital care	627
inpatient care	627
lab tests	638
preventive care	22
vaccines	22

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary A. Pieprzak, MD.

**Gender**
Male	652
Female	722

**Ethnicity**
Non-Hispanic White	676
Black	566
Hispanic	0
Asian	64
Other	36
Native American	0

**Age**
From 65 to 74	474
From 75 to 84	440
85 and over	222
Less than 65	238

Conditions of Medicare patients treated by Dr. Mary A. Pieprzak, MD in 2015

Hypertension	75
High Cholesterol	73
Stroke	11
Ischemic Heart Disease	58
Depression	28
Chronic Kidney Disease	75
Asthma	15
Osteoperosis	4
Atrial Fibrilation	22
Heart Failure	47
Chronic Obstructive Pulmonary Disease	23
Diabetes	64
Dementia	20
Cancer	13

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Mary A. Pieprzak, MD treated as a nephrologist in Baltimore, MD during 2016 were hospital care, inpatient care, lab tests and dialysis.

Volume of procedures performed by Dr. Mary A. Pieprzak, MD for Medicare patients.

dialysis	351
doctor visit	608
hospital care	706
inpatient care	706
lab tests	662
preventive care	20
vaccines	20

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary A. Pieprzak, MD.

**Gender**
Male	365
Female	344

**Ethnicity**
Non-Hispanic White	355
Black	285
Hispanic	16
Asian	36
Other	0
Native American	0

**Age**
From 65 to 74	255
From 75 to 84	220
85 and over	122
Less than 65	112

Conditions of Medicare patients treated by Dr. Mary A. Pieprzak, MD in 2016

Hypertension	75
High Cholesterol	75
Stroke	12
Ischemic Heart Disease	58
Depression	28
Chronic Kidney Disease	75
Asthma	24
Osteoperosis	5
Atrial Fibrilation	19
Heart Failure	48
Chronic Obstructive Pulmonary Disease	21
Diabetes	63
Dementia	26
Cancer	15

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Mary A. Pieprzak, MD treated as a nephrologist in Baltimore, MD during 2017 were hospital care, inpatient care, lab tests and dialysis.

Volume of procedures performed by Dr. Mary A. Pieprzak, MD for Medicare patients.

dialysis	437
doctor visit	495
hemofiltration	49
hospital care	710
inpatient care	710
lab tests	547
preventive care	16
vaccines	16

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary A. Pieprzak, MD.

**Gender**
Male	355
Female	346

**Ethnicity**
Non-Hispanic White	363
Black	267
Hispanic	0
Asian	44
Other	15
Native American	0

**Age**
From 65 to 74	239
From 75 to 84	225
85 and over	118
Less than 65	119

Conditions of Medicare patients treated by Dr. Mary A. Pieprzak, MD in 2017

Hypertension	75
High Cholesterol	75
Stroke	13
Ischemic Heart Disease	61
Depression	32
Chronic Kidney Disease	75
Asthma	9
Osteoperosis	7
Atrial Fibrilation	20
Heart Failure	49
Chronic Obstructive Pulmonary Disease	21
Diabetes	62
Dementia	25
Cancer	13

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Mary A. Pieprzak, MD treated as a nephrologist in Baltimore, MD during 2018 were lab tests, hospital care, inpatient care and dialysis.

Volume of procedures performed by Dr. Mary A. Pieprzak, MD for Medicare patients.

dialysis	393
doctor visit	603
hemofiltration	32
hospital care	666
inpatient care	666
lab tests	670
preventive care	13
vaccines	13

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary A. Pieprzak, MD.

**Gender**
Male	370
Female	362

**Ethnicity**
Non-Hispanic White	397
Black	261
Hispanic	0
Asian	41
Other	18
Native American	0

**Age**
From 65 to 74	250
From 75 to 84	239
85 and over	128
Less than 65	115

Conditions of Medicare patients treated by Dr. Mary A. Pieprzak, MD in 2018

Hypertension	75
High Cholesterol	75
Stroke	12
Ischemic Heart Disease	60
Depression	31
Chronic Kidney Disease	75
Asthma	10
Osteoperosis	8
Atrial Fibrilation	19
Heart Failure	50
Chronic Obstructive Pulmonary Disease	21
Diabetes	62
Dementia	23
Cancer	15

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Mary A. Pieprzak, MD treated as a nephrologist in Baltimore, MD during 2019 were lab tests, hospital care, inpatient care and dialysis.

Volume of procedures performed by Dr. Mary A. Pieprzak, MD for Medicare patients.

dialysis	347
doctor visit	562
hemofiltration	38
hospital care	618
inpatient care	618
lab tests	729

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary A. Pieprzak, MD.

**Gender**
Male	361
Female	355

**Ethnicity**
Non-Hispanic White	370
Black	269
Hispanic	19
Asian	44
Other	14
Native American	0

**Age**
From 65 to 74	260
From 75 to 84	233
85 and over	121
Less than 65	102

Conditions of Medicare patients treated by Dr. Mary A. Pieprzak, MD in 2019

Hypertension	75
High Cholesterol	75
Stroke	11
Ischemic Heart Disease	58
Depression	34
Chronic Kidney Disease	75
Asthma	10
Osteoperosis	10
Atrial Fibrilation	16
Heart Failure	49
Chronic Obstructive Pulmonary Disease	21
Diabetes	61
Dementia	24
Cancer	16

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Mary A. Pieprzak, MD treated as a nephrologist in Baltimore, MD during 2020 were hospital care, inpatient care, dialysis and lab tests.

Volume of procedures performed by Dr. Mary A. Pieprzak, MD for Medicare patients.

dialysis	271
doctor visit	312
hemofiltration	55
hospital care	547
inpatient care	547
lab tests	130

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary A. Pieprzak, MD.

**Gender**
Male	294
Female	279

**Ethnicity**
Non-Hispanic White	296
Black	222
Hispanic	13
Asian	30
Other	12
Native American	0

**Age**
From 65 to 74	207
From 75 to 84	181
85 and over	95
Less than 65	90

Conditions of Medicare patients treated by Dr. Mary A. Pieprzak, MD in 2020

Hypertension	75
High Cholesterol	75
Stroke	12
Ischemic Heart Disease	56
Depression	28
Chronic Kidney Disease	75
Asthma	8
Osteoperosis	7
Atrial Fibrilation	18
Heart Failure	51
Chronic Obstructive Pulmonary Disease	20
Diabetes	61
Dementia	25
Cancer	13

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Mary A. Pieprzak, MD treated as a nephrologist in Baltimore, MD during 2021 were hospital care, inpatient care, dialysis and lab tests.

Volume of procedures performed by Dr. Mary A. Pieprzak, MD for Medicare patients.

dialysis	308
doctor visit	431
hemofiltration	54
hospital care	625
inpatient care	625
lab tests	90

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary A. Pieprzak, MD.

**Gender**
Male	312
Female	332

**Ethnicity**
Non-Hispanic White	323
Black	242
Hispanic	0
Asian	41
Other	20
Native American	0

**Age**
From 65 to 74	218
From 75 to 84	233
85 and over	104
Less than 65	89

Conditions of Medicare patients treated by Dr. Mary A. Pieprzak, MD in 2021

Hypertension	75
High Cholesterol	75
Stroke	13
Ischemic Heart Disease	55
Depression	29
Chronic Kidney Disease	75
Asthma	10
Osteoperosis	9
Atrial Fibrilation	18
Heart Failure	46
Chronic Obstructive Pulmonary Disease	17
Diabetes	59
Dementia	21
Cancer	13

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Mary A. Pieprzak, MD treated as a nephrologist in Baltimore, MD during 2022 were hospital care, inpatient care, dialysis and lab tests.

Volume of procedures performed by Dr. Mary A. Pieprzak, MD for Medicare patients.

dialysis	224
doctor visit	556
hemofiltration	25
hospital care	425
inpatient care	425
lab tests	73

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary A. Pieprzak, MD.

**Gender**
Male	309
Female	332

**Ethnicity**
Non-Hispanic White	331
Black	229
Hispanic	18
Asian	40
Other	23
Native American	0

**Age**
From 65 to 74	216
From 75 to 84	249
85 and over	106
Less than 65	70

Conditions of Medicare patients treated by Dr. Mary A. Pieprzak, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	15
Ischemic Heart Disease	44
Depression	24
Chronic Kidney Disease	75
Asthma	12
Osteoperosis	16
Atrial Fibrilation	28
Heart Failure	42
Chronic Obstructive Pulmonary Disease	18
Diabetes	58
Dementia	16
Cancer	20

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Mary A. Pieprzak, MD for Medicare patients.

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

dialysis	308
doctor visit	535
hemofiltration	41
hospital care	664
inpatient care	664
lab tests	489
preventive care	16
vaccines	16

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Mary A. Pieprzak, MD.

**Gender**
Female	339
Male	336

**Ethnicity**
Black / African American	256
Asian / Pacific Islander	36
Non-Hispanic White	351
Native American / Alaskan Native	0
Hispanic	6
Other	13

**Age**
85 and over	111
75 to 84	223
Less than 65	105
65 to 74	234

Average of Total of Conditions of Medicare patients treated by Dr. Mary A. Pieprzak, MD From 2012 - 2022

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

Hypertension	68
High Cholesterol	67
Stroke	11
Ischemic Heart Disease	51
Depression	25
Chronic Kidney Disease	68
Asthma	10
Osteoporosis	7
Heart Failure	43
Chronic Obstructive Pulmonary Disease	18
Diabetes	55
Atrial Fibrillation	18
Dementia	20
Cancer	13

Education & Training

She completed residency at University of Connecticut Affiliated Hospitals. She is certified by the American Board of Internal Medicine - Nephrology and has a state license in Maryland.

Residency: University of Connecticut Affiliated Hospitals

Board Certification: American Board of Internal Medicine - Nephrology (1996)

Licensed In: Maryland

Affiliations & Hospitals

Dr. Mary A. Pieprzak, MD is associated with these hospitals and organizations:

University of Maryland Medical System

Ascension

Ascension Saint Agnes Hospital

Ratings & Reviews

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General Payments

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

**Payments by Company**
Baxter Healthcare	$91 Renal - Non Product Related $91
AstraZeneca Pharmaceuticals LP	$86 LOKELMA $86
Relypsa, Inc.	$81 VELTASSA $81
Vifor Pharma, Inc.	$42 KORSUVA $42
Questcor Pharmaceuticals	$24 ACTHAR $24
Other	$26 Tavneos $20	$6

**Types of Payments**
Food and Beverage	$300
Education	$50

Biography

Dr. Mary Pieprzak's medical specialty is adult nephrology. Dr. Pieprzak graduated from SUNY, University at Buffalo School of Medicine & Biomedical Sciences and then she performed her residency at a hospital affiliated with the University of Connecticut. Her professional affiliations include the University of Maryland Medical System and Ascension.

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Dr. Mary A. Pieprzak, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Mary A. Pieprzak, MD in 2023

By Affordability:

By Volume:

By Affordability:

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

2013 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mary A. Pieprzak, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mary A. Pieprzak, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mary A. Pieprzak, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mary A. Pieprzak, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mary A. Pieprzak, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mary A. Pieprzak, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mary A. Pieprzak, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mary A. Pieprzak, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mary A. Pieprzak, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mary A. Pieprzak, MD in 2022

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Average Medicare Patient Data From 2012 - 2022

Average of Total of Conditions of Medicare patients treated by Dr. Mary A. Pieprzak, MD From 2012 - 2022

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Biography

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