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Dr. Oliver Michael Berrett, MD

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Specializes in: Emergency Medicine

St. George's University School of Medicine

27 Park Street
Hyannis, MA 02601

(508) 862-5981

Dr. Oliver Michael Berrett, MD is an emergency medicine doctor in Hyannis, MA specializing in emergency medicine. He graduated from St. George's University School of Medicine. Dr. Oliver Michael Berrett, MD is affiliated with Cape Cod Healthcare, URGI CENTER MEDICAL GROUP and CAPE COD EMERGENCY ASSOCIATES LLP.

Office Locations

27 Park Street
Hyannis, MA 02601

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Noteworthy Medicare Patient Procedures Performed by Dr. Oliver Michael Berrett, MD in 2023

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

Top 5%

By Volume:

emergency room care

In 2023, Dr. Oliver Michael Berrett, MD performed more emergency room (ER) care procedures for Medicare patients than 95% of providers in related specialties within Massachusetts.

Top 25%

By Volume:

lab tests

rapid flu test

In 2012, Dr. Oliver Michael Berrett, MD performed more lab tests, and rapid flu test procedures for Medicare patients than 75% of providers in related specialties within Massachusetts.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Oliver Michael Berrett, MD treated as an emergency medicine doctor in Hyannis, MA during 2012 were emergency care.

Volume of procedures performed by Dr. Oliver Michael Berrett, MD for Medicare patients.

emergency care	106

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Oliver Michael Berrett, MD treated as an emergency medicine doctor in Hyannis, MA during 2013 were emergency care.

Volume of procedures performed by Dr. Oliver Michael Berrett, MD for Medicare patients.

emergency care	299

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Oliver Michael Berrett, MD.

**Gender**
Male	159
Female	164

**Ethnicity**
Non-Hispanic White	108
Black	203
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	93
From 75 to 84	59
85 and over	26
Less than 65	145

Conditions of Medicare patients treated by Dr. Oliver Michael Berrett, MD in 2013

Hypertension	75
High Cholesterol	52
Stroke	13
Ischemic Heart Disease	63
Depression	40
Chronic Kidney Disease	45
Asthma	18
Osteoperosis	9
Atrial Fibrilation	11
Heart Failure	35
Chronic Obstructive Pulmonary Disease	24
Diabetes	41
Dementia	13
Cancer	14

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Oliver Michael Berrett, MD treated as an emergency medicine doctor in Hyannis, MA during 2014 were emergency care.

Volume of procedures performed by Dr. Oliver Michael Berrett, MD for Medicare patients.

doctor visit	52
emergency care	686

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Oliver Michael Berrett, MD.

**Gender**
Male	360
Female	419

**Ethnicity**
Non-Hispanic White	633
Black	113
Hispanic	15
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	210
From 75 to 84	197
85 and over	161
Less than 65	211

Conditions of Medicare patients treated by Dr. Oliver Michael Berrett, MD in 2014

Hypertension	75
High Cholesterol	58
Stroke	13
Ischemic Heart Disease	50
Depression	38
Chronic Kidney Disease	35
Asthma	16
Osteoperosis	10
Atrial Fibrilation	21
Heart Failure	28
Chronic Obstructive Pulmonary Disease	20
Diabetes	33
Dementia	15
Cancer	13

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Oliver Michael Berrett, MD treated as an emergency medicine doctor in Hyannis, MA during 2015 were emergency care, minor procedures, wound repair (e.g. stitches) and lab tests.

Volume of procedures performed by Dr. Oliver Michael Berrett, MD for Medicare patients.

doctor visit	195
emergency care	1083
lab tests	14
minor procedures	31
tracheal (windpipe) procedures	11
wound repair (e.g. stitches)	31

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Oliver Michael Berrett, MD.

**Gender**
Male	1170
Female	1398

**Ethnicity**
Non-Hispanic White	2432
Black	52
Hispanic	0
Asian	0
Other	46
Native American	0

**Age**
From 65 to 74	738
From 75 to 84	750
85 and over	620
Less than 65	460

Conditions of Medicare patients treated by Dr. Oliver Michael Berrett, MD in 2015

Hypertension	74
High Cholesterol	59
Stroke	10
Ischemic Heart Disease	41
Depression	35
Chronic Kidney Disease	35
Asthma	20
Osteoperosis	11
Atrial Fibrilation	21
Heart Failure	27
Chronic Obstructive Pulmonary Disease	20
Diabetes	26
Dementia	17
Cancer	14

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Oliver Michael Berrett, MD treated as an emergency medicine doctor in Hyannis, MA during 2016 were emergency care, lab tests, minor procedures and wound repair (e.g. stitches).

Volume of procedures performed by Dr. Oliver Michael Berrett, MD for Medicare patients.

doctor visit	227
emergency care	1199
lab tests	18
minor procedures	11
wound repair (e.g. stitches)	11

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Oliver Michael Berrett, MD.

**Gender**
Male	628
Female	799

**Ethnicity**
Non-Hispanic White	1359
Black	0
Hispanic	17
Asian	0
Other	31
Native American	0

**Age**
From 65 to 74	439
From 75 to 84	400
85 and over	348
Less than 65	240

Conditions of Medicare patients treated by Dr. Oliver Michael Berrett, MD in 2016

Hypertension	74
High Cholesterol	62
Stroke	8
Ischemic Heart Disease	43
Depression	35
Chronic Kidney Disease	38
Asthma	26
Osteoperosis	10
Atrial Fibrilation	21
Heart Failure	26
Chronic Obstructive Pulmonary Disease	21
Diabetes	26
Dementia	16
Cancer	15

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Oliver Michael Berrett, MD treated as an emergency medicine doctor in Hyannis, MA during 2017 were emergency care, lab tests and tracheal (windpipe) procedures.

Volume of procedures performed by Dr. Oliver Michael Berrett, MD for Medicare patients.

doctor visit	342
emergency care	994
lab tests	40
tracheal (windpipe) procedures	13

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Oliver Michael Berrett, MD.

**Gender**
Male	625
Female	747

**Ethnicity**
Non-Hispanic White	1299
Black	23
Hispanic	0
Asian	0
Other	30
Native American	0

**Age**
From 65 to 74	413
From 75 to 84	421
85 and over	340
Less than 65	198

Conditions of Medicare patients treated by Dr. Oliver Michael Berrett, MD in 2017

Hypertension	75
High Cholesterol	57
Stroke	9
Ischemic Heart Disease	42
Depression	33
Chronic Kidney Disease	38
Asthma	11
Osteoperosis	11
Atrial Fibrilation	22
Heart Failure	26
Chronic Obstructive Pulmonary Disease	20
Diabetes	25
Dementia	17
Cancer	17

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Oliver Michael Berrett, MD treated as an emergency medicine doctor in Hyannis, MA during 2018 were emergency care, lab tests, tracheal (windpipe) procedures and breathing treatment.

Volume of procedures performed by Dr. Oliver Michael Berrett, MD for Medicare patients.

breathing treatment	11
doctor visit	321
emergency care	1028
lab tests	36
tracheal (windpipe) procedures	11

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Oliver Michael Berrett, MD.

**Gender**
Male	628
Female	774

**Ethnicity**
Non-Hispanic White	1303
Black	27
Hispanic	0
Asian	0
Other	36
Native American	0

**Age**
From 65 to 74	417
From 75 to 84	425
85 and over	336
Less than 65	224

Conditions of Medicare patients treated by Dr. Oliver Michael Berrett, MD in 2018

Hypertension	75
High Cholesterol	64
Stroke	10
Ischemic Heart Disease	43
Depression	38
Chronic Kidney Disease	37
Asthma	12
Osteoperosis	10
Atrial Fibrilation	21
Heart Failure	25
Chronic Obstructive Pulmonary Disease	22
Diabetes	25
Dementia	19
Cancer	16

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Oliver Michael Berrett, MD treated as an emergency medicine doctor in Hyannis, MA during 2019 were emergency care and lab tests.

Volume of procedures performed by Dr. Oliver Michael Berrett, MD for Medicare patients.

doctor visit	400
emergency care	1100
lab tests	48

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Oliver Michael Berrett, MD.

**Gender**
Male	699
Female	828

**Ethnicity**
Non-Hispanic White	1423
Black	19
Hispanic	28
Asian	0
Other	44
Native American	0

**Age**
From 65 to 74	482
From 75 to 84	497
85 and over	347
Less than 65	201

Conditions of Medicare patients treated by Dr. Oliver Michael Berrett, MD in 2019

Hypertension	74
High Cholesterol	65
Stroke	9
Ischemic Heart Disease	43
Depression	36
Chronic Kidney Disease	38
Asthma	10
Osteoperosis	11
Atrial Fibrilation	21
Heart Failure	25
Chronic Obstructive Pulmonary Disease	20
Diabetes	22
Dementia	19
Cancer	15

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Oliver Michael Berrett, MD treated as an emergency medicine doctor in Hyannis, MA during 2020 were emergency care and lab tests.

Volume of procedures performed by Dr. Oliver Michael Berrett, MD for Medicare patients.

doctor visit	307
emergency care	952
lab tests	43

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Oliver Michael Berrett, MD.

**Gender**
Male	570
Female	720

**Ethnicity**
Non-Hispanic White	1195
Black	0
Hispanic	25
Asian	0
Other	41
Native American	0

**Age**
From 65 to 74	392
From 75 to 84	435
85 and over	278
Less than 65	185

Conditions of Medicare patients treated by Dr. Oliver Michael Berrett, MD in 2020

Hypertension	71
High Cholesterol	62
Stroke	8
Ischemic Heart Disease	44
Depression	36
Chronic Kidney Disease	40
Asthma	9
Osteoperosis	11
Atrial Fibrilation	19
Heart Failure	23
Chronic Obstructive Pulmonary Disease	18
Diabetes	22
Dementia	19
Cancer	15

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Oliver Michael Berrett, MD treated as an emergency medicine doctor in Hyannis, MA during 2021 were emergency care, lab tests, preventive care and vaccines.

Volume of procedures performed by Dr. Oliver Michael Berrett, MD for Medicare patients.

doctor visit	449
emergency care	1023
lab tests	50
preventive care	12
vaccines	12

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Oliver Michael Berrett, MD.

**Gender**
Male	625
Female	845

**Ethnicity**
Non-Hispanic White	1347
Black	30
Hispanic	19
Asian	0
Other	63
Native American	0

**Age**
From 65 to 74	494
From 75 to 84	471
85 and over	323
Less than 65	182

Conditions of Medicare patients treated by Dr. Oliver Michael Berrett, MD in 2021

Hypertension	75
High Cholesterol	68
Stroke	9
Ischemic Heart Disease	46
Depression	34
Chronic Kidney Disease	37
Asthma	10
Osteoperosis	12
Atrial Fibrilation	20
Heart Failure	23
Chronic Obstructive Pulmonary Disease	18
Diabetes	25
Dementia	19
Cancer	16

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Oliver Michael Berrett, MD treated as an emergency medicine doctor in Hyannis, MA during 2022 were emergency care and lab tests.

Volume of procedures performed by Dr. Oliver Michael Berrett, MD for Medicare patients.

doctor visit	537
emergency care	910
lab tests	207

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Oliver Michael Berrett, MD.

**Gender**
Male	632
Female	825

**Ethnicity**
Non-Hispanic White	1357
Black	16
Hispanic	0
Asian	16
Other	50
Native American	0

**Age**
From 65 to 74	474
From 75 to 84	529
85 and over	317
Less than 65	137

Conditions of Medicare patients treated by Dr. Oliver Michael Berrett, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	13
Ischemic Heart Disease	33
Depression	28
Chronic Kidney Disease	27
Asthma	14
Osteoperosis	16
Atrial Fibrilation	29
Heart Failure	20
Chronic Obstructive Pulmonary Disease	19
Diabetes	23
Dementia	12
Cancer	21

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Oliver Michael Berrett, MD for Medicare patients.

The highest averages for the top procedures that Dr. Oliver Michael Berrett, MD treated as an emergency medicine doctor in Hyannis, MA were emergency care, lab tests, minor procedures and wound repair (e.g. stitches).

doctor visit	314
emergency care	852
lab tests	57
minor procedures	21
preventive care	12
tracheal (windpipe) procedures	11
vaccines	12
wound repair (e.g. stitches)	21

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Oliver Michael Berrett, MD.

**Gender**
Male	554
Female	683

**Ethnicity**
Black / African American	43
Asian / Pacific Islander	1
Non-Hispanic White	1132
Native American / Alaskan Native	0
Hispanic	9
Other	31

**Age**
75 to 84	380
85 and over	281
Less than 65	198
65 to 74	377

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

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

Hypertension	67
High Cholesterol	56
Stroke	9
Ischemic Heart Disease	40
Depression	32
Chronic Kidney Disease	33
Asthma	13
Osteoporosis	10
Heart Failure	23
Chronic Obstructive Pulmonary Disease	18
Diabetes	24
Atrial Fibrillation	18
Dementia	15
Cancer	14

Education & Training

Dr. Oliver Michael Berrett, MD graduated from St. George's University School of Medicine. He completed residency at Lincoln Medical and Mental Health Center. He is certified by the American Board of Emergency Medicine and has a state license in Maryland.

Medical School: St. George's University School of Medicine

Residency: Lincoln Medical and Mental Health Center

Board Certification: American Board of Emergency Medicine

Licensed In: Maryland

Affiliations & Hospitals

Dr. Oliver Michael Berrett, MD is associated with these hospitals and organizations:

Cape Cod Healthcare

URGI CENTER MEDICAL GROUP

CAPE COD EMERGENCY ASSOCIATES LLP

Ratings & Reviews

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Biography

Dr. Oliver Berrett is a medical specialist in emergency medicine. He is affiliated with Cape Cod Healthcare. Dr. Berrett graduated from St. George's University School of Medicine. His residency was performed at Lincoln Medical and Mental Health Center.

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Dr. Oliver Michael Berrett, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Oliver Michael Berrett, MD in 2023

By Volume:

By Volume:

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. Oliver Michael Berrett, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Oliver Michael Berrett, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Oliver Michael Berrett, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Oliver Michael Berrett, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Oliver Michael Berrett, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Oliver Michael Berrett, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Oliver Michael Berrett, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Oliver Michael Berrett, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Oliver Michael Berrett, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Oliver Michael Berrett, 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. Oliver Michael Berrett, MD From 2012 - 2022

Education & Training

Affiliations & Hospitals

Ratings & Reviews

Biography

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