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Dr. Rene L. Desmarais, MD

(Rene Desmarais, MD)

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Specializes in: Cardiology (Heart Disease)

11107 Cathage Road
Berlin, MD 21811

(410) 912-6726

Dr. Rene L. Desmarais, MD is a cardiologist in Berlin, MD specializing in cardiology (heart disease). Dr. Rene L. Desmarais, MD is affiliated with 11107 Cathage Road, 400 Eastern Shore Drive.

Office Locations

11107 Cathage Road
Berlin, MD 21811

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400 Eastern Shore Drive
Salisbury, MD 21804

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In The News

“Dr. Rene Desmarais has practiced cardiology for the past 33 years in Salisbury.”—"America needs to address our health care crisis head-on", The Washington Times, February 2026

“Carl L. Anderton Jr. (R) Thursday unexpectedly fell short of winning appointment as the next Wicomico County executive - losing out to Rene Desmarais, a Salisbury-based cardiologist with little...”—"Cardiologist becomes next Wicomico Co. executive", Washington Top News, August 2020

“Less than four days after his surprise appointment as the next Wicomico County executive stirred both consternation and controversy, Dr. Rene Desmarais - a cardiologist with little prior political...”—"Cardiologist declines appointment as county executive of Eastern Shore's largest county", Washington Top News, August 2020

Noteworthy Medicare Patient Procedures Performed by Dr. Rene L. Desmarais, MD in 2023

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

Top 5%

By Affordability:

prothrombin time test

In 2023, Dr. Rene L. Desmarais, MD had a list price for blood tests, coagulation (blood clotting) tests, lab tests, liver function tests (LFTs), and prothrombin time (PT) test 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:

cardiac stress testing

cardiac procedures

inpatient hospital care

myocardial perfusion SPECT

nuclear scan

stress EKG

By Affordability:

cardiac imaging

transthoracic echocardiography

In 2023, among providers in related specialties within Maryland, Dr. Rene L. Desmarais, MD performed more cardiac (heart) stress testing, cardiac procedures, inpatient hospital care (for patient admitted to hospital), myocardial perfusion SPECT, nuclear scan, and stress EKG procedures for Medicare patients than 90% of them and he also had a list price for cardiac imaging, and transthoracic echocardiography (TTE) that was lower than the list prices billed to Medicare by 90% 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.

Top 25%

By Volume:

prothrombin time test

By Affordability:

color Doppler echocardiography

Doppler echocardiography

echocardiogram

hospital care

inpatient care

inpatient hospital care

myocardial perfusion SPECT

nuclear scan

nuclear stress test

spectral Doppler echocardiography

SPECT scan

In 2012, among providers in related specialties within Maryland, Dr. Rene L. Desmarais, MD performed more prothrombin time (PT) test procedures for Medicare patients than 75% of them and he also had a list price for color Doppler echocardiography, Doppler echocardiography, echocardiogram (echo), hospital care, inpatient care, inpatient hospital care (for patient admitted to hospital), myocardial perfusion SPECT, nuclear scan, nuclear stress test (myocardial perfusion imaging), spectral Doppler echocardiography, and SPECT scan 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. Rene L. Desmarais, MD treated as a cardiologist in Berlin, MD during 2012 were hospital care, inpatient care, lab tests and cardiac procedures.

Volume of procedures performed by Dr. Rene L. Desmarais, MD for Medicare patients.

blood draw	333
cardiac procedures	691
doctor visit	2219
hospital care	1019
inpatient care	966
lab tests	843
nuclear scan	85
nursing home care	27
outpatient care	53
preventive care	37
stress testing	358
thyroid function tests	18
ultrasound (sonogram)	333

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Rene L. Desmarais, MD treated as a cardiologist in Berlin, MD during 2013 were hospital care, inpatient care, lab tests and cardiac procedures.

Volume of procedures performed by Dr. Rene L. Desmarais, MD for Medicare patients.

ambulatory monitoring	12
blood draw	314
cardiac procedures	768
doctor visit	2270
hospital care	985
inpatient care	909
lab tests	841
minimally invasive procedures	11
nuclear scan	42
nursing home care	23
outpatient care	76
preventive care	49
stress testing	356
thyroid function tests	12
ultrasound (sonogram)	413

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Rene L. Desmarais, MD.

**Gender**
Male	1325
Female	1331

**Ethnicity**
Non-Hispanic White	2166
Black	456
Hispanic	14
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	935
From 75 to 84	978
85 and over	460
Less than 65	283

Conditions of Medicare patients treated by Dr. Rene L. Desmarais, MD in 2013

Hypertension	75
High Cholesterol	75
Stroke	14
Ischemic Heart Disease	71
Depression	21
Chronic Kidney Disease	41
Asthma	8
Osteoperosis	7
Atrial Fibrilation	32
Heart Failure	43
Chronic Obstructive Pulmonary Disease	27
Diabetes	44
Dementia	15
Cancer	15

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Rene L. Desmarais, MD treated as a cardiologist in Berlin, MD during 2014 were hospital care, inpatient care, cardiac procedures and lab tests.

Volume of procedures performed by Dr. Rene L. Desmarais, MD for Medicare patients.

ambulatory monitoring	15
blood draw	230
cardiac procedures	705
cardioversion	12
doctor visit	1917
hospital care	848
inpatient care	806
lab tests	646
nuclear scan	57
outpatient care	42
preventive care	44
stress testing	313
thyroid function tests	13
ultrasound (sonogram)	388

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Rene L. Desmarais, MD.

**Gender**
Male	1176
Female	1169

**Ethnicity**
Non-Hispanic White	1940
Black	371
Hispanic	0
Asian	0
Other	13
Native American	0

**Age**
From 65 to 74	831
From 75 to 84	829
85 and over	430
Less than 65	255

Conditions of Medicare patients treated by Dr. Rene L. Desmarais, MD in 2014

Hypertension	75
High Cholesterol	75
Stroke	15
Ischemic Heart Disease	70
Depression	21
Chronic Kidney Disease	41
Asthma	6
Osteoperosis	6
Atrial Fibrilation	34
Heart Failure	44
Chronic Obstructive Pulmonary Disease	27
Diabetes	45
Dementia	15
Cancer	13

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Rene L. Desmarais, MD treated as a cardiologist in Berlin, MD during 2015 were hospital care, inpatient care, cardiac procedures and lab tests.

Volume of procedures performed by Dr. Rene L. Desmarais, MD for Medicare patients.

ambulatory monitoring	47
blood draw	65
cardiac procedures	1034
cardioversion	18
doctor visit	2655
hospital care	1092
inpatient care	1049
lab tests	936
nuclear scan	70
outpatient care	43
stress testing	463
ultrasound (sonogram)	524

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Rene L. Desmarais, MD.

**Gender**
Male	3210
Female	3128

**Ethnicity**
Non-Hispanic White	5078
Black	1126
Hispanic	40
Asian	0
Other	56
Native American	0

**Age**
From 65 to 74	2406
From 75 to 84	2192
85 and over	1012
Less than 65	728

Conditions of Medicare patients treated by Dr. Rene L. Desmarais, MD in 2015

Hypertension	75
High Cholesterol	75
Stroke	13
Ischemic Heart Disease	67
Depression	21
Chronic Kidney Disease	43
Asthma	17
Osteoperosis	6
Atrial Fibrilation	29
Heart Failure	40
Chronic Obstructive Pulmonary Disease	26
Diabetes	45
Dementia	15
Cancer	14

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Rene L. Desmarais, MD treated as a cardiologist in Berlin, MD during 2016 were hospital care, inpatient care, lab tests and cardiac procedures.

Volume of procedures performed by Dr. Rene L. Desmarais, MD for Medicare patients.

ambulatory monitoring	25
blood draw	81
cardiac procedures	896
cardioversion	20
doctor visit	2783
hospital care	1151
inpatient care	1096
lab tests	938
nuclear scan	60
outpatient care	55
stress testing	371
ultrasound (sonogram)	518

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Rene L. Desmarais, MD.

**Gender**
Male	1582
Female	1632

**Ethnicity**
Non-Hispanic White	2522
Black	616
Hispanic	31
Asian	0
Other	31
Native American	0

**Age**
From 65 to 74	1171
From 75 to 84	1140
85 and over	500
Less than 65	403

Conditions of Medicare patients treated by Dr. Rene L. Desmarais, MD in 2016

Hypertension	75
High Cholesterol	74
Stroke	14
Ischemic Heart Disease	67
Depression	22
Chronic Kidney Disease	50
Asthma	29
Osteoperosis	6
Atrial Fibrilation	29
Heart Failure	40
Chronic Obstructive Pulmonary Disease	27
Diabetes	46
Dementia	18
Cancer	13

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Rene L. Desmarais, MD treated as a cardiologist in Berlin, MD during 2017 were hospital care, inpatient care, cardiac procedures and lab tests.

Volume of procedures performed by Dr. Rene L. Desmarais, MD for Medicare patients.

ambulatory monitoring	29
blood draw	85
cardiac procedures	984
doctor visit	2817
hospital care	999
inpatient care	999
lab tests	807
nuclear scan	75
stress testing	450
ultrasound (sonogram)	523

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Rene L. Desmarais, MD.

**Gender**
Male	1339
Female	1368

**Ethnicity**
Non-Hispanic White	2183
Black	469
Hispanic	0
Asian	0
Other	32
Native American	0

**Age**
From 65 to 74	976
From 75 to 84	976
85 and over	447
Less than 65	308

Conditions of Medicare patients treated by Dr. Rene L. Desmarais, MD in 2017

Hypertension	75
High Cholesterol	68
Stroke	13
Ischemic Heart Disease	66
Depression	23
Chronic Kidney Disease	50
Asthma	9
Osteoperosis	7
Atrial Fibrilation	27
Heart Failure	39
Chronic Obstructive Pulmonary Disease	26
Diabetes	43
Dementia	16
Cancer	15

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Rene L. Desmarais, MD treated as a cardiologist in Berlin, MD during 2018 were cardiac procedures, hospital care, inpatient care and lab tests.

Volume of procedures performed by Dr. Rene L. Desmarais, MD for Medicare patients.

ambulatory monitoring	18
blood draw	116
cardiac procedures	1176
doctor visit	2888
hospital care	1050
inpatient care	1039
lab tests	730
nuclear scan	48
outpatient care	11
stress testing	555
ultrasound (sonogram)	630

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Rene L. Desmarais, MD.

**Gender**
Male	1376
Female	1317

**Ethnicity**
Non-Hispanic White	2181
Black	449
Hispanic	0
Asian	0
Other	36
Native American	0

**Age**
From 65 to 74	985
From 75 to 84	1033
85 and over	443
Less than 65	232

Conditions of Medicare patients treated by Dr. Rene L. Desmarais, MD in 2018

Hypertension	75
High Cholesterol	75
Stroke	13
Ischemic Heart Disease	66
Depression	22
Chronic Kidney Disease	50
Asthma	8
Osteoperosis	8
Atrial Fibrilation	29
Heart Failure	38
Chronic Obstructive Pulmonary Disease	24
Diabetes	43
Dementia	16
Cancer	13

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Rene L. Desmarais, MD treated as a cardiologist in Berlin, MD during 2019 were cardiac procedures, hospital care, inpatient care and ultrasound (sonogram).

Volume of procedures performed by Dr. Rene L. Desmarais, MD for Medicare patients.

blood draw	86
cardiac procedures	1030
doctor visit	2726
hospital care	910
inpatient care	910
lab tests	482
minimally invasive procedures	11
nuclear scan	62
stress testing	496
ultrasound (sonogram)	555

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Rene L. Desmarais, MD.

**Gender**
Male	1160
Female	1140

**Ethnicity**
Non-Hispanic White	1875
Black	359
Hispanic	20
Asian	11
Other	35
Native American	0

**Age**
From 65 to 74	836
From 75 to 84	916
85 and over	355
Less than 65	193

Conditions of Medicare patients treated by Dr. Rene L. Desmarais, MD in 2019

Hypertension	75
High Cholesterol	75
Stroke	13
Ischemic Heart Disease	67
Depression	23
Chronic Kidney Disease	49
Asthma	9
Osteoperosis	8
Atrial Fibrilation	31
Heart Failure	38
Chronic Obstructive Pulmonary Disease	23
Diabetes	42
Dementia	14
Cancer	14

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Rene L. Desmarais, MD treated as a cardiologist in Berlin, MD during 2020 were hospital care, inpatient care, cardiac procedures and lab tests.

Volume of procedures performed by Dr. Rene L. Desmarais, MD for Medicare patients.

cardiac procedures	807
doctor visit	2099
hospital care	834
inpatient care	834
lab tests	712
nuclear scan	90
stress testing	354
ultrasound (sonogram)	469

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Rene L. Desmarais, MD.

**Gender**
Male	1033
Female	995

**Ethnicity**
Non-Hispanic White	1652
Black	300
Hispanic	18
Asian	12
Other	46
Native American	0

**Age**
From 65 to 74	745
From 75 to 84	794
85 and over	352
Less than 65	137

Conditions of Medicare patients treated by Dr. Rene L. Desmarais, MD in 2020

Hypertension	75
High Cholesterol	75
Stroke	11
Ischemic Heart Disease	68
Depression	22
Chronic Kidney Disease	50
Asthma	9
Osteoperosis	9
Atrial Fibrilation	33
Heart Failure	37
Chronic Obstructive Pulmonary Disease	21
Diabetes	41
Dementia	14
Cancer	14

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Rene L. Desmarais, MD treated as a cardiologist in Berlin, MD during 2021 were hospital care, cardiac procedures, inpatient care and lab tests.

Volume of procedures performed by Dr. Rene L. Desmarais, MD for Medicare patients.

cardiac procedures	807
doctor visit	2124
hospital care	807
inpatient care	807
lab tests	488
nuclear scan	134
stress testing	472
ultrasound (sonogram)	335

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Rene L. Desmarais, MD.

**Gender**
Male	1016
Female	969

**Ethnicity**
Non-Hispanic White	1605
Black	319
Hispanic	0
Asian	0
Other	42
Native American	0

**Age**
From 65 to 74	728
From 75 to 84	785
85 and over	323
Less than 65	149

Conditions of Medicare patients treated by Dr. Rene L. Desmarais, MD in 2021

Hypertension	75
High Cholesterol	75
Stroke	10
Ischemic Heart Disease	66
Depression	23
Chronic Kidney Disease	51
Asthma	9
Osteoperosis	9
Atrial Fibrilation	32
Heart Failure	36
Chronic Obstructive Pulmonary Disease	19
Diabetes	40
Dementia	14
Cancer	13

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Rene L. Desmarais, MD treated as a cardiologist in Berlin, MD during 2022 were cardiac procedures, stress testing, hospital care and inpatient care.

Volume of procedures performed by Dr. Rene L. Desmarais, MD for Medicare patients.

cardiac procedures	1094
doctor visit	2111
hospital care	574
inpatient care	574
lab tests	478
nuclear scan	192
stress testing	600
ultrasound (sonogram)	506

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Rene L. Desmarais, MD.

**Gender**
Male	1062
Female	1082

**Ethnicity**
Non-Hispanic White	1739
Black	332
Hispanic	16
Asian	0
Other	41
Native American	0

**Age**
From 65 to 74	790
From 75 to 84	859
85 and over	333
Less than 65	162

Conditions of Medicare patients treated by Dr. Rene L. Desmarais, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	14
Ischemic Heart Disease	54
Depression	22
Chronic Kidney Disease	37
Asthma	12
Osteoperosis	11
Atrial Fibrilation	39
Heart Failure	34
Chronic Obstructive Pulmonary Disease	23
Diabetes	39
Dementia	8
Cancer	17

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Rene L. Desmarais, MD treated as a cardiologist in Berlin, MD during 2023 were cardiac procedures, stress testing, hospital care and inpatient care.

Volume of procedures performed by Dr. Rene L. Desmarais, MD for Medicare patients.

cardiac procedures	1113
doctor visit	1556
hospital care	567
inpatient care	567
lab tests	358
nuclear scan	273
stress testing	641
ultrasound (sonogram)	493

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Rene L. Desmarais, MD.

**Gender**
Male	1021
Female	994

**Ethnicity**
Non-Hispanic White	1704
Black	244
Hispanic	20
Asian	15
Other	32
Native American	0

**Age**
From 65 to 74	748
From 75 to 84	824
85 and over	303
Less than 65	140

Conditions of Medicare patients treated by Dr. Rene L. Desmarais, MD in 2023

Hypertension	75
High Cholesterol	75
Stroke	13
Ischemic Heart Disease	54
Depression	24
Chronic Kidney Disease	35
Asthma	12
Osteoperosis	12
Atrial Fibrilation	40
Heart Failure	33
Chronic Obstructive Pulmonary Disease	20
Diabetes	37
Dementia	7
Cancer	18

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Volume of procedures performed by Dr. Rene L. Desmarais, MD for Medicare patients.

The highest averages for the top procedures that Dr. Rene L. Desmarais, MD treated as a cardiologist in Berlin, MD were cardiac procedures, hospital care, inpatient care and lab tests.

ambulatory monitoring	24
blood draw	163
cardiac procedures	925
cardioversion	16
doctor visit	2347
hospital care	903
inpatient care	879
lab tests	688
minimally invasive procedures	11
nuclear scan	99
nursing home care	25
outpatient care	46
preventive care	43
stress testing	452
thyroid function tests	14
ultrasound (sonogram)	473

Average Medicare Patient Data From 2012 - 2023

Information about Medicare patients treated by Dr. Rene L. Desmarais, MD.

**Gender**
Male	1275
Female	1260

**Ethnicity**
Black / African American	420
Asian / Pacific Islander	3
Non-Hispanic White	2053
Hispanic	13
Native American / Alaskan Native	0
Other	30

**Age**
75 to 84	943
85 and over	413
Less than 65	249
65 to 74	929

Average of Total of Conditions of Medicare patients treated by Dr. Rene L. Desmarais, MD From 2012 - 2023

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

Hypertension	68
High Cholesterol	68
Stroke	11
Ischemic Heart Disease	59
Depression	20
Chronic Kidney Disease	41
Asthma	10
Osteoporosis	7
Heart Failure	35
Chronic Obstructive Pulmonary Disease	21
Diabetes	38
Atrial Fibrillation	29
Cancer	13
Dementia	12

Education & Training

He has a state license in Maryland.

Licensed In: Maryland

Affiliations & Hospitals

Dr. Rene L. Desmarais, MD is associated with these hospitals and organizations:

11107 Cathage Road, 400 Eastern Shore Drive

Ratings & Reviews

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General Payments

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

**Payments by Company**
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)	$784 LifeVest $784
E.R. Squibb & Sons, L.L.C.	$471 ELIQUIS $418	CAMZYOS $53
AstraZeneca Pharmaceuticals LP	$458 BRILINTA $444	FARXIGA $14
Janssen Pharmaceuticals, Inc	$365 XARELTO $365
Amgen Inc.	$291 Repatha $245	Corlanor $46
Other	$1,333 ENTRESTO $240	JARDIANCE $127	Vascepa $115	ELIQUIS $93	NORTHERA $92	Other $666

**Types of Payments**
Food and Beverage	$3,641
Education	$37
Consulting Fee	$24

Biography

Dr. Rene Desmarais sees patients in Salisbury, MD and Berlin, MD. His medical specialty is cardiology (heart disease). He studied medicine at the University of Connecticut School of Medicine.