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Dr. Michael Nmn Grassia, MD

Accepting New Patients

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Specializes in: Adult Nephrology

Eastern Virginia Medical School (1997)

6160 Kempsville Circle Suite 302a
Norfolk, VA 23502

(757) 466-9288

Dr. Michael Nmn Grassia, MD is a nephrologist in Norfolk, VA specializing in adult nephrology. He graduated from Eastern Virginia Medical School in 1997 and has 29 years of experience. Dr. Michael Nmn Grassia, MD is affiliated with Bon Secours, Bon Secours Maryview Medical Center and Bon Secours Maryview Medical Center.

Office Locations

6160 Kempsville Circle Suite 302a
Norfolk, VA 23502

(757) 466-9288

(757) 457-3691

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Noteworthy Medicare Patient Procedures Performed by Dr. Michael Nmn Grassia, MD in 2023

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

Top 10%

By Affordability:

hospital care

inpatient care

inpatient hospital care

In 2023, Dr. Michael Nmn Grassia, MD had a list price for hospital care, inpatient care, and inpatient hospital care (for patient admitted to hospital) that was lower than the list prices billed to Medicare by 90% of providers in related specialties within Virginia. 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. Michael Nmn Grassia, MD treated as a nephrologist in Norfolk, VA during 2012 were hospital care, inpatient care and dialysis.

Volume of procedures performed by Dr. Michael Nmn Grassia, MD for Medicare patients.

dialysis	33
doctor visit	392
hospital care	1195
inpatient care	1195

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Michael Nmn Grassia, MD treated as a nephrologist in Norfolk, VA during 2013 were hospital care and inpatient care.

Volume of procedures performed by Dr. Michael Nmn Grassia, MD for Medicare patients.

doctor visit	328
hospital care	1335
inpatient care	1335

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Nmn Grassia, MD.

**Gender**
Male	308
Female	316

**Ethnicity**
Non-Hispanic White	310
Black	250
Hispanic	22
Asian	27
Other	0
Native American	0

**Age**
From 65 to 74	185
From 75 to 84	198
85 and over	95
Less than 65	146

Conditions of Medicare patients treated by Dr. Michael Nmn Grassia, MD in 2013

Hypertension	75
High Cholesterol	72
Stroke	12
Ischemic Heart Disease	51
Depression	26
Chronic Kidney Disease	75
Asthma	10
Osteoperosis	7
Atrial Fibrilation	22
Heart Failure	50
Chronic Obstructive Pulmonary Disease	29
Diabetes	63
Dementia	21
Cancer	12

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Michael Nmn Grassia, MD treated as a nephrologist in Norfolk, VA during 2014 were hospital care and inpatient care.

Volume of procedures performed by Dr. Michael Nmn Grassia, MD for Medicare patients.

doctor visit	340
hospital care	1355
inpatient care	1355

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Nmn Grassia, MD.

**Gender**
Male	339
Female	336

**Ethnicity**
Non-Hispanic White	348
Black	246
Hispanic	30
Asian	30
Other	0
Native American	0

**Age**
From 65 to 74	196
From 75 to 84	204
85 and over	105
Less than 65	170

Conditions of Medicare patients treated by Dr. Michael Nmn Grassia, MD in 2014

Hypertension	75
High Cholesterol	74
Stroke	11
Ischemic Heart Disease	55
Depression	26
Chronic Kidney Disease	75
Asthma	13
Osteoperosis	7
Atrial Fibrilation	22
Heart Failure	54
Chronic Obstructive Pulmonary Disease	28
Diabetes	63
Dementia	19
Cancer	13

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Michael Nmn Grassia, MD treated as a nephrologist in Norfolk, VA during 2015 were hospital care, inpatient care and lab tests.

Volume of procedures performed by Dr. Michael Nmn Grassia, MD for Medicare patients.

doctor visit	330
hospital care	918
inpatient care	918
lab tests	19

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Nmn Grassia, MD.

**Gender**
Male	616
Female	632

**Ethnicity**
Non-Hispanic White	642
Black	456
Hispanic	44
Asian	64
Other	42
Native American	0

**Age**
From 65 to 74	390
From 75 to 84	380
85 and over	176
Less than 65	302

Conditions of Medicare patients treated by Dr. Michael Nmn Grassia, MD in 2015

Hypertension	75
High Cholesterol	71
Stroke	11
Ischemic Heart Disease	54
Depression	26
Chronic Kidney Disease	75
Asthma	23
Osteoperosis	8
Atrial Fibrilation	26
Heart Failure	52
Chronic Obstructive Pulmonary Disease	29
Diabetes	62
Dementia	16
Cancer	13

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Michael Nmn Grassia, MD treated as a nephrologist in Norfolk, VA during 2016 were hospital care, inpatient care and lab tests.

Volume of procedures performed by Dr. Michael Nmn Grassia, MD for Medicare patients.

doctor visit	320
hospital care	1082
inpatient care	1082
lab tests	15

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Nmn Grassia, MD.

**Gender**
Male	347
Female	352

**Ethnicity**
Non-Hispanic White	338
Black	272
Hispanic	28
Asian	41
Other	0
Native American	0

**Age**
From 65 to 74	230
From 75 to 84	217
85 and over	107
Less than 65	145

Conditions of Medicare patients treated by Dr. Michael Nmn Grassia, MD in 2016

Hypertension	75
High Cholesterol	74
Stroke	12
Ischemic Heart Disease	56
Depression	30
Chronic Kidney Disease	75
Asthma	33
Osteoperosis	7
Atrial Fibrilation	24
Heart Failure	60
Chronic Obstructive Pulmonary Disease	31
Diabetes	64
Dementia	20
Cancer	14

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Michael Nmn Grassia, MD treated as a nephrologist in Norfolk, VA during 2017 were hospital care and inpatient care.

Volume of procedures performed by Dr. Michael Nmn Grassia, MD for Medicare patients.

doctor visit	292
hospital care	973
inpatient care	973

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Nmn Grassia, MD.

**Gender**
Male	286
Female	296

**Ethnicity**
Non-Hispanic White	277
Black	230
Hispanic	20
Asian	37
Other	0
Native American	0

**Age**
From 65 to 74	193
From 75 to 84	177
85 and over	97
Less than 65	115

Conditions of Medicare patients treated by Dr. Michael Nmn Grassia, MD in 2017

Hypertension	75
High Cholesterol	68
Stroke	12
Ischemic Heart Disease	53
Depression	29
Chronic Kidney Disease	75
Asthma	12
Osteoperosis	6
Atrial Fibrilation	24
Heart Failure	55
Chronic Obstructive Pulmonary Disease	28
Diabetes	66
Dementia	20
Cancer	15

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Michael Nmn Grassia, MD treated as a nephrologist in Norfolk, VA during 2018 were hospital care, inpatient care and lab tests.

Volume of procedures performed by Dr. Michael Nmn Grassia, MD for Medicare patients.

doctor visit	380
hospital care	956
inpatient care	956
lab tests	16

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Nmn Grassia, MD.

**Gender**
Male	321
Female	337

**Ethnicity**
Non-Hispanic White	322
Black	235
Hispanic	32
Asian	44
Other	0
Native American	0

**Age**
From 65 to 74	232
From 75 to 84	211
85 and over	89
Less than 65	126

Conditions of Medicare patients treated by Dr. Michael Nmn Grassia, MD in 2018

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	52
Depression	30
Chronic Kidney Disease	75
Asthma	12
Osteoperosis	10
Atrial Fibrilation	25
Heart Failure	53
Chronic Obstructive Pulmonary Disease	27
Diabetes	64
Dementia	20
Cancer	14

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Michael Nmn Grassia, MD treated as a nephrologist in Norfolk, VA during 2019 were hospital care and inpatient care.

Volume of procedures performed by Dr. Michael Nmn Grassia, MD for Medicare patients.

doctor visit	434
hospital care	826
inpatient care	826

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Nmn Grassia, MD.

**Gender**
Male	315
Female	317

**Ethnicity**
Non-Hispanic White	305
Black	238
Hispanic	34
Asian	36
Other	0
Native American	0

**Age**
From 65 to 74	219
From 75 to 84	192
85 and over	92
Less than 65	129

Conditions of Medicare patients treated by Dr. Michael Nmn Grassia, MD in 2019

Hypertension	75
High Cholesterol	74
Stroke	8
Ischemic Heart Disease	50
Depression	27
Chronic Kidney Disease	75
Asthma	11
Osteoperosis	8
Atrial Fibrilation	21
Heart Failure	54
Chronic Obstructive Pulmonary Disease	25
Diabetes	63
Dementia	19
Cancer	13

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Michael Nmn Grassia, MD treated as a nephrologist in Norfolk, VA during 2020 were hospital care and inpatient care.

Volume of procedures performed by Dr. Michael Nmn Grassia, MD for Medicare patients.

doctor visit	228
hospital care	920
inpatient care	920

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Nmn Grassia, MD.

**Gender**
Male	235
Female	238

**Ethnicity**
Non-Hispanic White	220
Black	184
Hispanic	22
Asian	27
Other	20
Native American	0

**Age**
From 65 to 74	159
From 75 to 84	148
85 and over	58
Less than 65	108

Conditions of Medicare patients treated by Dr. Michael Nmn Grassia, MD in 2020

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	50
Depression	30
Chronic Kidney Disease	75
Asthma	7
Osteoperosis	8
Atrial Fibrilation	21
Heart Failure	56
Chronic Obstructive Pulmonary Disease	24
Diabetes	65
Dementia	19
Cancer	12

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Michael Nmn Grassia, MD treated as a nephrologist in Norfolk, VA during 2021 were hospital care and inpatient care.

Volume of procedures performed by Dr. Michael Nmn Grassia, MD for Medicare patients.

doctor visit	214
hospital care	831
inpatient care	831

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Nmn Grassia, MD.

**Gender**
Male	251
Female	238

**Ethnicity**
Non-Hispanic White	250
Black	163
Hispanic	20
Asian	33
Other	23
Native American	0

**Age**
From 65 to 74	176
From 75 to 84	175
85 and over	63
Less than 65	75

Conditions of Medicare patients treated by Dr. Michael Nmn Grassia, MD in 2021

Hypertension	75
High Cholesterol	75
Stroke	11
Ischemic Heart Disease	53
Depression	23
Chronic Kidney Disease	75
Asthma	10
Osteoperosis	8
Atrial Fibrilation	19
Heart Failure	55
Chronic Obstructive Pulmonary Disease	19
Diabetes	66
Dementia	17
Cancer	15

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Michael Nmn Grassia, MD treated as a nephrologist in Norfolk, VA during 2022 were hospital care and inpatient care.

Volume of procedures performed by Dr. Michael Nmn Grassia, MD for Medicare patients.

doctor visit	170
hospital care	690
inpatient care	690

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Nmn Grassia, MD.

**Gender**
Male	215
Female	223

**Ethnicity**
Non-Hispanic White	239
Black	137
Hispanic	18
Asian	26
Other	18
Native American	0

**Age**
From 65 to 74	151
From 75 to 84	157
85 and over	72
Less than 65	58

Conditions of Medicare patients treated by Dr. Michael Nmn Grassia, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	15
Ischemic Heart Disease	48
Depression	23
Chronic Kidney Disease	75
Asthma	13
Osteoperosis	12
Atrial Fibrilation	33
Heart Failure	50
Chronic Obstructive Pulmonary Disease	26
Diabetes	65
Dementia	13
Cancer	22

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Michael Nmn Grassia, MD for Medicare patients.

The highest averages for the top procedures that Dr. Michael Nmn Grassia, MD treated as a nephrologist in Norfolk, VA were hospital care, inpatient care, dialysis and lab tests.

dialysis	33
doctor visit	311
hospital care	1007
inpatient care	1007
lab tests	16

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Michael Nmn Grassia, MD.

**Gender**
Female	298
Male	293

**Ethnicity**
Black / African American	219
Asian / Pacific Islander	33
Non-Hispanic White	295
Native American / Alaskan Native	0
Hispanic	24
Other	9

**Age**
85 and over	86
75 to 84	187
Less than 65	124
65 to 74	193

Average of Total of Conditions of Medicare patients treated by Dr. Michael Nmn Grassia, MD From 2012 - 2022

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

Hypertension	68
High Cholesterol	66
Stroke	10
Ischemic Heart Disease	47
Depression	24
Chronic Kidney Disease	68
Asthma	13
Osteoporosis	7
Heart Failure	49
Chronic Obstructive Pulmonary Disease	24
Diabetes	58
Atrial Fibrillation	21
Dementia	16
Cancer	13

Education & Training

Dr. Michael Nmn Grassia, MD graduated from Eastern Virginia Medical School in 1997. He completed residency at The Reading Hospital and Medical Center. He is certified by the American Board of Internal Medicine (Internal Medicine, Nephrology) and has a state license in Virginia.

Medical School: Eastern Virginia Medical School (1997)

Residency: The Reading Hospital and Medical Center (2000)

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

Licensed In: Virginia

Affiliations & Hospitals

Dr. Michael Nmn Grassia, MD is associated with these hospitals and organizations:

Bon Secours

Bon Secours Maryview Medical Center

Ratings & Reviews

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General Payments

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

**Payments by Company**
Otsuka America Pharmaceutical, Inc.	$389 SAMSCA $195	JYNARQUE $194
Fresenius USA Marketing, Inc.	$326 Velphoro $259	Dialyzers $67
Relypsa, Inc.	$254 VELTASSA $254
Questcor Pharmaceuticals	$186 ACTHAR $186
Astellas Pharma US Inc	$182 Prograf $18	$164
Other	$706 ACTHAR $158	LOKELMA $148	System One $101	Auryxia $65	RENVELA $59	Other $176

**Types of Payments**
Food and Beverage	$1,656
Education	$388

Biography

Dr. Michael Grassia, who practices in Norfolk, VA, is a medical specialist in adult nephrology. He is professionally affiliated with Bon Secours Maryview Medical Center. According to Bon Secours, he is currently accepting new patients at his office in. Dr. Grassia attended medical school at Eastern Virginia Medical School. His medical residency was performed at The Reading Hospital and Medical Center.

Select Year:

Dr. Michael Nmn Grassia, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Michael Nmn Grassia, MD in 2023

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. Michael Nmn Grassia, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Michael Nmn Grassia, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Michael Nmn Grassia, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Michael Nmn Grassia, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Michael Nmn Grassia, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Michael Nmn Grassia, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Michael Nmn Grassia, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Michael Nmn Grassia, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Michael Nmn Grassia, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Michael Nmn Grassia, 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. Michael Nmn Grassia, MD From 2012 - 2022

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Biography

Other Providers in Norfolk, VA