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Home > FL Providers > Radiation Oncologists

Dr. Richard J. Cassidy III, MD

(Dr. Richard John Cassidy III, MD)

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Specializes in: Radiation Oncology

University of Florida College of Medicine (2013)

7751 Belfort Parkway Suite 350
Jacksonville, FL 32256

(904) 363-7453

Dr. Richard J. Cassidy III, MD is a radiation oncologist in Fleming Island, FL specializing in radiation oncology. He graduated from University of Florida College of Medicine in 2013 and has 12 years of experience. Dr. Richard J. Cassidy III, MD is affiliated with UF Health St. Johns, Baptist Health, HCA Florida Healthcare, HCA South Atlantic, Baptist Medical Center Beaches, CANCER SPECIALISTS LLC and HCA Florida Orange Park Hospital.

Office Locations

HCA Florida Orange Park Hospital

2370 Market Drive
Fleming Island, FL 32003

(904) 264-6201

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7015 Ac Skinner Parkway Building 100
Jacksonville, FL 32256

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UF Health St. Johns

7751 Belfort Parkway Suite 350
Jacksonville, FL 32256

(904) 363-7453

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Noteworthy Medicare Patient Procedures Performed by Dr. Richard J. Cassidy III, MD in 2023

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

Top 5%

By Affordability:

robotic stereotactic radiosurgery

In 2023, Dr. Richard J. Cassidy III, MD had a list price for robotic stereotactic radiosurgery (CyberKnife) that was lower than the list prices billed to Medicare by 95% of providers in related specialties within Florida. 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:

image guided procedures

In 2013, Dr. Richard J. Cassidy III, MD performed more image guided procedures procedures for Medicare patients than 75% of providers in related specialties within Florida.

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Richard J. Cassidy III, MD treated as a radiation oncologist in Fleming Island, FL during 2018 were radiation therapy and image guided procedures.

Volume of procedures performed by Dr. Richard J. Cassidy III, MD for Medicare patients.

doctor visit	94
image guided procedures	41
radiation therapy	125

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Richard J. Cassidy III, MD.

**Gender**
Male	38
Female	66

**Ethnicity**
Non-Hispanic White	84
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	51
From 75 to 84	34
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Richard J. Cassidy III, MD in 2018

The most common conditions of Medicare patients that Dr. Richard J. Cassidy III, MD treated during 2018 were hypertension, cancer, high cholesterol and ischemic heart disease.

Hypertension	75
High Cholesterol	65
Stroke	0
Ischemic Heart Disease	57
Depression	24
Chronic Kidney Disease	41
Asthma	0
Osteoperosis	11
Atrial Fibrilation	19
Heart Failure	23
Chronic Obstructive Pulmonary Disease	37
Diabetes	45
Dementia	13
Cancer	73

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Richard J. Cassidy III, MD treated as a radiation oncologist in Fleming Island, FL during 2019 were radiation therapy and image guided procedures.

Volume of procedures performed by Dr. Richard J. Cassidy III, MD for Medicare patients.

doctor visit	301
image guided procedures	64
radiation therapy	379

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Richard J. Cassidy III, MD.

**Gender**
Male	100
Female	133

**Ethnicity**
Non-Hispanic White	199
Black	23
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	109
From 75 to 84	83
85 and over	27
Less than 65	14

Conditions of Medicare patients treated by Dr. Richard J. Cassidy III, MD in 2019

The most common conditions of Medicare patients that Dr. Richard J. Cassidy III, MD treated during 2019 were hypertension, cancer, high cholesterol and chronic kidney disease.

Hypertension	75
High Cholesterol	64
Stroke	8
Ischemic Heart Disease	41
Depression	18
Chronic Kidney Disease	42
Asthma	7
Osteoperosis	6
Atrial Fibrilation	15
Heart Failure	20
Chronic Obstructive Pulmonary Disease	24
Diabetes	36
Dementia	8
Cancer	67

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Richard J. Cassidy III, MD treated as a radiation oncologist in Fleming Island, FL during 2020 were radiation therapy and image guided procedures.

Volume of procedures performed by Dr. Richard J. Cassidy III, MD for Medicare patients.

doctor visit	484
image guided procedures	99
radiation therapy	322

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Richard J. Cassidy III, MD.

**Gender**
Male	138
Female	140

**Ethnicity**
Non-Hispanic White	224
Black	29
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	128
From 75 to 84	99
85 and over	34
Less than 65	17

Conditions of Medicare patients treated by Dr. Richard J. Cassidy III, MD in 2020

The most common conditions of Medicare patients that Dr. Richard J. Cassidy III, MD treated during 2020 were hypertension, cancer, high cholesterol and ischemic heart disease.

Hypertension	75
High Cholesterol	67
Stroke	6
Ischemic Heart Disease	48
Depression	26
Chronic Kidney Disease	46
Asthma	6
Osteoperosis	6
Atrial Fibrilation	16
Heart Failure	23
Chronic Obstructive Pulmonary Disease	31
Diabetes	37
Dementia	12
Cancer	69

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Richard J. Cassidy III, MD treated as a radiation oncologist in Fleming Island, FL during 2021 were radiation therapy and image guided procedures.

Volume of procedures performed by Dr. Richard J. Cassidy III, MD for Medicare patients.

doctor visit	511
image guided procedures	102
radiation therapy	306

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Richard J. Cassidy III, MD.

**Gender**
Male	135
Female	130

**Ethnicity**
Non-Hispanic White	215
Black	28
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	129
From 75 to 84	89
85 and over	30
Less than 65	17

Conditions of Medicare patients treated by Dr. Richard J. Cassidy III, MD in 2021

The most common conditions of Medicare patients that Dr. Richard J. Cassidy III, MD treated during 2021 were hypertension, cancer, high cholesterol and chronic kidney disease.

Hypertension	75
High Cholesterol	71
Stroke	7
Ischemic Heart Disease	47
Depression	24
Chronic Kidney Disease	48
Asthma	7
Osteoperosis	10
Atrial Fibrilation	16
Heart Failure	18
Chronic Obstructive Pulmonary Disease	31
Diabetes	41
Dementia	11
Cancer	72

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Richard J. Cassidy III, MD treated as a radiation oncologist in Fleming Island, FL during 2022 were radiation therapy and image guided procedures.

Volume of procedures performed by Dr. Richard J. Cassidy III, MD for Medicare patients.

doctor visit	505
image guided procedures	102
radiation therapy	172

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Richard J. Cassidy III, MD.

**Gender**
Male	148
Female	132

**Ethnicity**
Non-Hispanic White	239
Black	23
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	128
From 75 to 84	107
85 and over	31
Less than 65	14

Conditions of Medicare patients treated by Dr. Richard J. Cassidy III, MD in 2022

The most common conditions of Medicare patients that Dr. Richard J. Cassidy III, MD treated during 2022 were high cholesterol, hypertension, cancer and ischemic heart disease.

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	42
Depression	20
Chronic Kidney Disease	32
Asthma	6
Osteoperosis	15
Atrial Fibrilation	29
Heart Failure	19
Chronic Obstructive Pulmonary Disease	38
Diabetes	36
Dementia	9
Cancer	73

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Richard J. Cassidy III, MD treated as a radiation oncologist in Fleming Island, FL during 2023 were radiation therapy and image guided procedures.

Volume of procedures performed by Dr. Richard J. Cassidy III, MD for Medicare patients.

doctor visit	535
image guided procedures	87
radiation therapy	178

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Richard J. Cassidy III, MD.

**Gender**
Male	135
Female	119

**Ethnicity**
Non-Hispanic White	213
Black	15
Hispanic	0
Asian	0
Other	13
Native American	0

**Age**
From 65 to 74	116
From 75 to 84	90
85 and over	37
Less than 65	11

Conditions of Medicare patients treated by Dr. Richard J. Cassidy III, MD in 2023

The most common conditions of Medicare patients that Dr. Richard J. Cassidy III, MD treated during 2023 were high cholesterol, hypertension, cancer and ischemic heart disease.

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	37
Depression	20
Chronic Kidney Disease	30
Asthma	6
Osteoperosis	14
Atrial Fibrilation	26
Heart Failure	23
Chronic Obstructive Pulmonary Disease	35
Diabetes	33
Dementia	8
Cancer	70

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2018 - 2023

Volume of procedures performed by Dr. Richard J. Cassidy III, MD for Medicare patients.

The highest averages for the top procedures that Dr. Richard J. Cassidy III, MD treated as a radiation oncologist in Fleming Island, FL were radiation therapy and image guided procedures.

doctor visit	405
image guided procedures	82
radiation therapy	247

Average Medicare Patient Data From 2018 - 2023

Information about Medicare patients treated by Dr. Richard J. Cassidy III, MD.

**Gender**
Male	115
Female	120

**Ethnicity**
Black / African American	19
Asian / Pacific Islander	0
Non-Hispanic White	195
Hispanic	0
Native American / Alaskan Native	0
Other	2

**Age**
75 to 84	83
85 and over	26
Less than 65	12
65 to 74	110

Average of Total of Conditions of Medicare patients treated by Dr. Richard J. Cassidy III, MD From 2018 - 2023

The highest averages of the most common conditions of Medicare patients that Dr. Richard J. Cassidy III, MD treated were hypertension, cancer, high cholesterol and ischemic heart disease.

Hypertension	75
High Cholesterol	69
Stroke	6
Ischemic Heart Disease	45
Depression	22
Chronic Kidney Disease	39
Asthma	5
Osteoporosis	10
Heart Failure	21
Chronic Obstructive Pulmonary Disease	32
Diabetes	38
Atrial Fibrillation	20
Dementia	10
Cancer	70

Education & Training

Dr. Richard J. Cassidy III, MD graduated from University of Florida College of Medicine in 2013. He completed residency at Emory University Affiliated Hospitals. He is certified by the American Board of Radiology (Radiation Oncology) and has a state license in Florida.

Medical School: University of Florida College of Medicine (2013)

Residency: Emory University Affiliated Hospitals (2018)

Board Certification: American Board of Radiology (Radiation Oncology)

Licensed In: Florida

Affiliations & Hospitals

Dr. Richard J. Cassidy III, MD is associated with these hospitals and organizations:

UF Health St. Johns

Baptist Health

HCA Florida Healthcare

HCA South Atlantic

Baptist Medical Center Beaches

CANCER SPECIALISTS LLC

HCA Florida Orange Park Hospital

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General Payments

These charts describe general payments received by Dr. Richard J. Cassidy III, MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
GENZYME CORPORATION	$327 LIBTAYO $232	SARCLISA $39	CABLIVI $27	ELITEK $10	ENJAYMO $8	Other $11
GT Medical Technologies, Inc	$229 GammaTile $229
Foundation Medicine, Inc.	$196 FOUNDATIONONE LIQUID CDX $127	FOUNDATIONONE LIQUID $49	FOUNDATIONONE CDX $20
Daiichi Sankyo Inc.	$148 Enhertu $119	Injectafer $30
Boehringer Ingelheim Pharmaceuticals, Inc.	$50 JARDIANCE $50
Other	$344 BRUKINSA $41	FOTIVDA $38	Lutathera $37	JAKAFI $24	Rubraca $20	Other $183

**Types of Payments**
Food and Beverage	$1,293

Research Payments

Dr. Richard J. Cassidy III, MD has received 2 research payments totaling $24,409.

Biography

Dr. Richard Cassidy specializes in radiation oncology. He attended the University of Florida College of Medicine and then went on to complete his residency at a hospital affiliated with Emory University. Dr. Cassidy's professional affiliations include Baptist Medical Center Beaches, HCA South Atlantic, and UF Health St. Johns.