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Dr. Atul T. Roy, MD

Accepting New Patients

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Specializes in: Adult Nephrology

American University of the Caribbean School of Medicine

1140 Olivewood Drive
Merced, CA 95348

(209) 725-2121

Dr. Atul T. Roy, MD is a nephrologist in Merced, CA specializing in adult nephrology. He graduated from American University of the Caribbean School of Medicine. Dr. Atul T. Roy, MD is affiliated with Mercy Medical Center Merced and Dignity Health.

Office Locations

Dignity Health

1140 Olivewood Drive
Merced, CA 95348

(209) 725-2121

(209) 725-2123

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Noteworthy Medicare Patient Procedures Performed by Dr. Atul T. Roy, MD in 2023

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

Top 5%

By Affordability:

cystatin C test

reticulocyte count

In 2023, Dr. Atul T. Roy, MD had a list price for cystatin C test, and reticulocyte count (immature red blood cell count) that was lower than the list prices billed to Medicare by 95% of providers in related specialties within California. 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:

A1C test

diabetes screening

glycated protein test

phosphorus blood test

phosphorus test

vitamin B12 test

In 2023, Dr. Atul T. Roy, MD had a list price for A1C test, diabetes screening, glycated protein test, phosphorus blood test, phosphorus test, and vitamin B12 test that was lower than the list prices billed to Medicare by 90% of providers in related specialties within California. 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:

blood draw

creatinine urine test

hemodialysis

lab tests

microalbumin urine test

phlebotomy for lab tests

phosphorus blood test

preventive care

uric acid blood test

By Affordability:

albumin test

cholesterol screening

creatinine test

creatinine urine test

microalbumin urine test

parathyroid hormone test

serum folate test

total protein test

total protein urine test

vitamin D test

In 2012, among providers in related specialties within California, Dr. Atul T. Roy, MD performed more blood draw, creatinine urine test, hemodialysis, lab tests, microalbumin urine test, phlebotomy for lab tests, phosphorus blood test, preventive care, and uric acid blood test procedures for Medicare patients than 75% of them and he also had a list price for albumin test, cholesterol screening, creatinine test, creatinine urine test, diabetes management, folic acid tests, iron tests, lipid profile, magnesium test, microalbumin test, microalbumin urine test, parathyroid hormone (PTH) test, serum folate test, total protein test, total protein urine test, and vitamin D test 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. Atul T. Roy, MD treated as a nephrologist in Merced, CA during 2012 were lab tests, hospital care, inpatient care and diabetes management.

Volume of procedures performed by Dr. Atul T. Roy, MD for Medicare patients.

diabetes management	1127
dialysis	498
doctor visit	2213
hemofiltration	104
hospital care	1304
inpatient care	1304
lab tests	2160
preventive care	328
vaccines	26

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Atul T. Roy, MD treated as a nephrologist in Merced, CA during 2013 were lab tests, hospital care, inpatient care and diabetes management.

Volume of procedures performed by Dr. Atul T. Roy, MD for Medicare patients.

diabetes management	947
dialysis	384
doctor visit	2057
hospital care	1342
inpatient care	1342
lab tests	1849
preventive care	185
vaccines	31

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Atul T. Roy, MD.

**Gender**
Male	427
Female	519

**Ethnicity**
Non-Hispanic White	443
Black	93
Hispanic	348
Asian	42
Other	0
Native American	0

**Age**
From 65 to 74	310
From 75 to 84	325
85 and over	145
Less than 65	166

Conditions of Medicare patients treated by Dr. Atul T. Roy, MD in 2013

Hypertension	75
High Cholesterol	64
Stroke	8
Ischemic Heart Disease	59
Depression	18
Chronic Kidney Disease	75
Asthma	15
Osteoperosis	6
Atrial Fibrilation	14
Heart Failure	50
Chronic Obstructive Pulmonary Disease	25
Diabetes	65
Dementia	14
Cancer	9

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Atul T. Roy, MD treated as a nephrologist in Merced, CA during 2014 were lab tests, diabetes management, hospital care and inpatient care.

Volume of procedures performed by Dr. Atul T. Roy, MD for Medicare patients.

diabetes management	987
dialysis	249
doctor visit	1974
hemofiltration	61
hospital care	966
inpatient care	966
lab tests	1697
preventive care	144
vaccines	42

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Atul T. Roy, MD.

**Gender**
Male	468
Female	545

**Ethnicity**
Non-Hispanic White	469
Black	86
Hispanic	384
Asian	53
Other	0
Native American	0

**Age**
From 65 to 74	338
From 75 to 84	327
85 and over	165
Less than 65	183

Conditions of Medicare patients treated by Dr. Atul T. Roy, MD in 2014

Hypertension	75
High Cholesterol	59
Stroke	7
Ischemic Heart Disease	56
Depression	19
Chronic Kidney Disease	75
Asthma	16
Osteoperosis	6
Atrial Fibrilation	15
Heart Failure	50
Chronic Obstructive Pulmonary Disease	23
Diabetes	70
Dementia	14
Cancer	9

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Atul T. Roy, MD treated as a nephrologist in Merced, CA during 2015 were lab tests, hospital care, inpatient care and diabetes management.

Volume of procedures performed by Dr. Atul T. Roy, MD for Medicare patients.

diabetes management	870
dialysis	266
doctor visit	1807
hemofiltration	44
hospital care	1277
inpatient care	1277
lab tests	1521
preventive care	160
vaccines	29

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Atul T. Roy, MD.

**Gender**
Male	950
Female	1030

**Ethnicity**
Non-Hispanic White	932
Black	174
Hispanic	746
Asian	90
Other	0
Native American	0

**Age**
From 65 to 74	634
From 75 to 84	644
85 and over	326
Less than 65	376

Conditions of Medicare patients treated by Dr. Atul T. Roy, MD in 2015

Hypertension	75
High Cholesterol	59
Stroke	10
Ischemic Heart Disease	58
Depression	21
Chronic Kidney Disease	75
Asthma	20
Osteoperosis	6
Atrial Fibrilation	14
Heart Failure	47
Chronic Obstructive Pulmonary Disease	24
Diabetes	67
Dementia	15
Cancer	10

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Atul T. Roy, MD treated as a nephrologist in Merced, CA during 2016 were hospital care, inpatient care, lab tests and diabetes management.

Volume of procedures performed by Dr. Atul T. Roy, MD for Medicare patients.

diabetes management	671
dialysis	182
doctor visit	1529
hospital care	1327
inpatient care	1327
lab tests	1145
preventive care	72
vaccines	16

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Atul T. Roy, MD.

**Gender**
Male	413
Female	502

**Ethnicity**
Non-Hispanic White	435
Black	76
Hispanic	334
Asian	49
Other	0
Native American	0

**Age**
From 65 to 74	292
From 75 to 84	304
85 and over	168
Less than 65	151

Conditions of Medicare patients treated by Dr. Atul T. Roy, MD in 2016

Hypertension	75
High Cholesterol	59
Stroke	11
Ischemic Heart Disease	60
Depression	18
Chronic Kidney Disease	75
Asthma	30
Osteoperosis	7
Atrial Fibrilation	14
Heart Failure	51
Chronic Obstructive Pulmonary Disease	23
Diabetes	65
Dementia	17
Cancer	10

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Atul T. Roy, MD treated as a nephrologist in Merced, CA during 2017 were hospital care, inpatient care, lab tests and diabetes management.

Volume of procedures performed by Dr. Atul T. Roy, MD for Medicare patients.

diabetes management	637
dialysis	265
doctor visit	1556
hospital care	1223
inpatient care	1223
lab tests	1111
preventive care	58
vaccines	24

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Atul T. Roy, MD.

**Gender**
Male	449
Female	479

**Ethnicity**
Non-Hispanic White	428
Black	71
Hispanic	350
Asian	58
Other	0
Native American	0

**Age**
From 65 to 74	288
From 75 to 84	297
85 and over	167
Less than 65	176

Conditions of Medicare patients treated by Dr. Atul T. Roy, MD in 2017

Hypertension	75
High Cholesterol	57
Stroke	9
Ischemic Heart Disease	60
Depression	17
Chronic Kidney Disease	75
Asthma	15
Osteoperosis	5
Atrial Fibrilation	15
Heart Failure	54
Chronic Obstructive Pulmonary Disease	26
Diabetes	67
Dementia	15
Cancer	8

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Atul T. Roy, MD treated as a nephrologist in Merced, CA during 2018 were hospital care, inpatient care, lab tests and diabetes management.

Volume of procedures performed by Dr. Atul T. Roy, MD for Medicare patients.

diabetes management	534
dialysis	316
doctor visit	1469
hospital care	1054
inpatient care	1054
lab tests	874
preventive care	15
vaccines	15

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Atul T. Roy, MD.

**Gender**
Male	421
Female	480

**Ethnicity**
Non-Hispanic White	393
Black	80
Hispanic	350
Asian	61
Other	0
Native American	0

**Age**
From 65 to 74	264
From 75 to 84	303
85 and over	165
Less than 65	169

Conditions of Medicare patients treated by Dr. Atul T. Roy, MD in 2018

Hypertension	75
High Cholesterol	61
Stroke	8
Ischemic Heart Disease	58
Depression	18
Chronic Kidney Disease	75
Asthma	14
Osteoperosis	6
Atrial Fibrilation	15
Heart Failure	52
Chronic Obstructive Pulmonary Disease	26
Diabetes	67
Dementia	17
Cancer	9

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Atul T. Roy, MD treated as a nephrologist in Merced, CA during 2019 were hospital care, inpatient care, lab tests and diabetes management.

Volume of procedures performed by Dr. Atul T. Roy, MD for Medicare patients.

blood draw	20
diabetes management	449
dialysis	301
doctor visit	1712
hospital care	1157
inpatient care	1157
lab tests	803
preventive care	12
vaccines	12

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Atul T. Roy, MD.

**Gender**
Male	418
Female	505

**Ethnicity**
Non-Hispanic White	395
Black	80
Hispanic	356
Asian	69
Other	0
Native American	0

**Age**
From 65 to 74	292
From 75 to 84	297
85 and over	168
Less than 65	166

Conditions of Medicare patients treated by Dr. Atul T. Roy, MD in 2019

Hypertension	75
High Cholesterol	63
Stroke	9
Ischemic Heart Disease	56
Depression	20
Chronic Kidney Disease	75
Asthma	11
Osteoperosis	6
Atrial Fibrilation	15
Heart Failure	53
Chronic Obstructive Pulmonary Disease	24
Diabetes	69
Dementia	15
Cancer	6

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Atul T. Roy, MD treated as a nephrologist in Merced, CA during 2020 were hospital care, inpatient care, lab tests and dialysis.

Volume of procedures performed by Dr. Atul T. Roy, MD for Medicare patients.

diabetes management	50
dialysis	107
doctor visit	1538
hospital care	500
inpatient care	500
lab tests	299

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Atul T. Roy, MD.

**Gender**
Male	373
Female	414

**Ethnicity**
Non-Hispanic White	342
Black	68
Hispanic	292
Asian	67
Other	0
Native American	0

**Age**
From 65 to 74	263
From 75 to 84	239
85 and over	138
Less than 65	147

Conditions of Medicare patients treated by Dr. Atul T. Roy, MD in 2020

Hypertension	75
High Cholesterol	61
Stroke	7
Ischemic Heart Disease	55
Depression	16
Chronic Kidney Disease	75
Asthma	11
Osteoperosis	5
Atrial Fibrilation	15
Heart Failure	50
Chronic Obstructive Pulmonary Disease	20
Diabetes	67
Dementia	16
Cancer	6

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Atul T. Roy, MD treated as a nephrologist in Merced, CA during 2021 were hospital care, inpatient care, dialysis and lab tests.

Volume of procedures performed by Dr. Atul T. Roy, MD for Medicare patients.

dialysis	138
doctor visit	1386
hospital care	563
inpatient care	563
lab tests	96

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Atul T. Roy, MD.

**Gender**
Male	347
Female	369

**Ethnicity**
Non-Hispanic White	318
Black	59
Hispanic	249
Asian	74
Other	0
Native American	0

**Age**
From 65 to 74	228
From 75 to 84	229
85 and over	139
Less than 65	120

Conditions of Medicare patients treated by Dr. Atul T. Roy, MD in 2021

Hypertension	75
High Cholesterol	63
Stroke	6
Ischemic Heart Disease	54
Depression	16
Chronic Kidney Disease	75
Asthma	11
Osteoperosis	5
Atrial Fibrilation	13
Heart Failure	46
Chronic Obstructive Pulmonary Disease	17
Diabetes	66
Dementia	15
Cancer	7

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Atul T. Roy, MD treated as a nephrologist in Merced, CA during 2022 were lab tests, hospital care, inpatient care and blood draw.

Volume of procedures performed by Dr. Atul T. Roy, MD for Medicare patients.

blood draw	258
diabetes management	39
dialysis	148
doctor visit	1274
hemofiltration	23
hospital care	757
inpatient care	757
lab tests	2052
preventive care	57

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Atul T. Roy, MD.

**Gender**
Male	369
Female	424

**Ethnicity**
Non-Hispanic White	375
Black	61
Hispanic	272
Asian	69
Other	0
Native American	0

**Age**
From 65 to 74	254
From 75 to 84	291
85 and over	132
Less than 65	116

Conditions of Medicare patients treated by Dr. Atul T. Roy, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	13
Ischemic Heart Disease	45
Depression	16
Chronic Kidney Disease	75
Asthma	17
Osteoperosis	9
Atrial Fibrilation	27
Heart Failure	38
Chronic Obstructive Pulmonary Disease	23
Diabetes	64
Dementia	9
Cancer	10

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Atul T. Roy, MD for Medicare patients.

The highest averages for the top procedures that Dr. Atul T. Roy, MD treated as a nephrologist in Merced, CA were lab tests, hospital care, inpatient care and diabetes management.

blood draw	139
diabetes management	631
dialysis	259
doctor visit	1683
hemofiltration	58
hospital care	1042
inpatient care	1042
lab tests	1237
preventive care	114
vaccines	24

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Atul T. Roy, MD.

**Gender**
Male	421
Female	478

**Ethnicity**
Black / African American	77
Asian / Pacific Islander	57
Non-Hispanic White	411
Native American / Alaskan Native	0
Hispanic	334
Other	0

**Age**
75 to 84	296
85 and over	155
Less than 65	160
65 to 74	287

Average of Total of Conditions of Medicare patients treated by Dr. Atul T. Roy, MD From 2012 - 2022

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

Hypertension	68
High Cholesterol	56
Stroke	8
Ischemic Heart Disease	51
Depression	16
Chronic Kidney Disease	68
Asthma	14
Osteoporosis	5
Heart Failure	44
Chronic Obstructive Pulmonary Disease	21
Diabetes	60
Atrial Fibrillation	14
Dementia	13
Cancer	7

Education & Training

Dr. Atul T. Roy, MD graduated from American University of the Caribbean School of Medicine. He is certified by the Internal Medicine Internal Medicine (Sub: Nephrology) and has a state license in California.

Medical School: American University of the Caribbean School of Medicine

Board Certification: Internal Medicine Internal Medicine (Sub: Nephrology)

Licensed In: California

Affiliations & Hospitals

Dr. Atul T. Roy, MD is associated with these hospitals and organizations:

Mercy Medical Center Merced

Dignity Health

Ratings & Reviews

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General Payments

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

**Payments by Company**
Novo Nordisk Inc	$354 Victoza $162	Tresiba $144	Ozempic $22	RYBELSUS $15	NovoLog $12
Keryx Biopharmaceuticals, Inc.	$316 Auryxia $316
AstraZeneca Pharmaceuticals LP	$234 FARXIGA $176	LOKELMA $58
Bayer HealthCare Pharmaceuticals Inc.	$158 Kerendia $85	Adempas $73
Mallinckrodt Hospital Products Inc.	$137 ACTHAR $137
Other	$527 ACTHAR $90	Velphoro $70	Auryxia $63	Rayaldee $42	Crysvita $36	Other $225

**Types of Payments**
Food and Beverage	$1,587
Education	$139

Biography

Dr. Atul Roy is a physician who specializes in adult nephrology. Dr. Roy is a graduate of American University of the Caribbean School of Medicine. He is conversant in Gujarati. He is professionally affiliated with Mercy Medical Center Merced. He welcomes new patients at his office inMerced, CA as reported by Dignity Health.

Select Year:

Dr. Atul T. Roy, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Atul T. Roy, MD in 2023

By Affordability:

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. Atul T. Roy, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Atul T. Roy, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Atul T. Roy, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Atul T. Roy, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Atul T. Roy, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Atul T. Roy, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Atul T. Roy, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Atul T. Roy, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Atul T. Roy, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Atul T. Roy, 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. Atul T. Roy, MD From 2012 - 2022

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Biography

Other Providers in Merced, CA