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Dr. Timothy L. Kerwin, MD

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Specializes in: Radiation Oncology

Emory University School of Medicine

15465 Tamiami Trail N.
Naples, FL 34110

(239) 325-1440

Dr. Timothy L. Kerwin, MD is a radiation oncologist in Naples, FL specializing in radiation oncology. He graduated from Emory University School of Medicine. Dr. Timothy L. Kerwin, MD is affiliated with Physicians Regional Healthcare System, NCH Healthcare System and Premiere Oncology.

Office Locations

Physicians Regional Healthcare System

15465 Tamiami Trail N.
Naples, FL 34110

(239) 241-8209

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8625 Collier Boulevard Suite 102
Naples, FL 34114

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955 10th Avenue N
Naples, FL 34102

(239) 325-1440

(239) 325-2283

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Noteworthy Medicare Patient Procedures Performed by Dr. Timothy L. Kerwin, MD in 2023

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

Top 5%

By Volume:

conventional external beam radiation therapy

In 2023, Dr. Timothy L. Kerwin, MD performed more conventional external beam radiation therapy procedures for Medicare patients than 95% of providers in related specialties within Florida.

Top 10%

By Volume:

image guided procedures

In 2023, Dr. Timothy L. Kerwin, MD performed more image guided procedures procedures for Medicare patients than 90% of providers in related specialties within Florida.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Timothy L. Kerwin, MD treated as a radiation oncologist in Naples, FL during 2012 were radiation therapy, CT scan, pelvic imaging and abdominal imaging.

Volume of procedures performed by Dr. Timothy L. Kerwin, MD for Medicare patients.

abdominal imaging	117
CT scan	117
doctor visit	1278
hospital care	19
inpatient care	19
pelvic imaging	117
radiation therapy	4798

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Timothy L. Kerwin, MD treated as a radiation oncologist in Naples, FL during 2013 were radiation therapy, CT scan, pelvic imaging and abdominal imaging.

Volume of procedures performed by Dr. Timothy L. Kerwin, MD for Medicare patients.

abdominal imaging	136
CT scan	136
doctor visit	1506
pelvic imaging	136
radiation therapy	5778

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy L. Kerwin, MD.

**Gender**
Male	381
Female	138

**Ethnicity**
Non-Hispanic White	485
Black	0
Hispanic	21
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	207
From 75 to 84	218
85 and over	77
Less than 65	17

Conditions of Medicare patients treated by Dr. Timothy L. Kerwin, MD in 2013

Hypertension	70
High Cholesterol	67
Stroke	4
Ischemic Heart Disease	44
Depression	14
Chronic Kidney Disease	28
Asthma	4
Osteoperosis	6
Atrial Fibrilation	17
Heart Failure	18
Chronic Obstructive Pulmonary Disease	16
Diabetes	25
Dementia	8
Cancer	70

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Timothy L. Kerwin, MD treated as a radiation oncologist in Naples, FL during 2014 were radiation therapy, CT scan, pelvic imaging and abdominal imaging.

Volume of procedures performed by Dr. Timothy L. Kerwin, MD for Medicare patients.

abdominal imaging	16
CT scan	16
doctor visit	1815
hospital care	11
inpatient care	11
pelvic imaging	16
radiation therapy	6901

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy L. Kerwin, MD.

**Gender**
Male	480
Female	237

**Ethnicity**
Non-Hispanic White	665
Black	0
Hispanic	32
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	330
From 75 to 84	285
85 and over	87
Less than 65	15

Conditions of Medicare patients treated by Dr. Timothy L. Kerwin, MD in 2014

Hypertension	65
High Cholesterol	62
Stroke	5
Ischemic Heart Disease	41
Depression	14
Chronic Kidney Disease	26
Asthma	4
Osteoperosis	8
Atrial Fibrilation	13
Heart Failure	15
Chronic Obstructive Pulmonary Disease	16
Diabetes	25
Dementia	6
Cancer	75

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Timothy L. Kerwin, MD treated as a radiation oncologist in Naples, FL during 2015 were radiation therapy, image guided procedures, CT scan and pelvic imaging.

Volume of procedures performed by Dr. Timothy L. Kerwin, MD for Medicare patients.

abdominal imaging	14
CT scan	14
doctor visit	2406
image guided procedures	59
pelvic imaging	14
radiation therapy	1073

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy L. Kerwin, MD.

**Gender**
Male	1002
Female	464

**Ethnicity**
Non-Hispanic White	1368
Black	32
Hispanic	38
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	660
From 75 to 84	590
85 and over	172
Less than 65	44

Conditions of Medicare patients treated by Dr. Timothy L. Kerwin, MD in 2015

Hypertension	68
High Cholesterol	63
Stroke	7
Ischemic Heart Disease	39
Depression	14
Chronic Kidney Disease	28
Asthma	8
Osteoperosis	6
Atrial Fibrilation	12
Heart Failure	14
Chronic Obstructive Pulmonary Disease	16
Diabetes	23
Dementia	8
Cancer	75

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Timothy L. Kerwin, MD treated as a radiation oncologist in Naples, FL during 2016 were radiation therapy.

Volume of procedures performed by Dr. Timothy L. Kerwin, MD for Medicare patients.

doctor visit	2142
radiation therapy	1016

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy L. Kerwin, MD.

**Gender**
Male	429
Female	168

**Ethnicity**
Non-Hispanic White	561
Black	0
Hispanic	21
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	266
From 75 to 84	249
85 and over	71
Less than 65	11

Conditions of Medicare patients treated by Dr. Timothy L. Kerwin, MD in 2016

Hypertension	71
High Cholesterol	64
Stroke	5
Ischemic Heart Disease	42
Depression	15
Chronic Kidney Disease	28
Asthma	14
Osteoperosis	6
Atrial Fibrilation	15
Heart Failure	14
Chronic Obstructive Pulmonary Disease	12
Diabetes	26
Dementia	8
Cancer	75

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Timothy L. Kerwin, MD treated as a radiation oncologist in Naples, FL during 2017 were radiation therapy, image guided procedures and hormone therapy.

Volume of procedures performed by Dr. Timothy L. Kerwin, MD for Medicare patients.

doctor visit	1936
hormone therapy	17
image guided procedures	46
radiation therapy	1407

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy L. Kerwin, MD.

**Gender**
Male	381
Female	175

**Ethnicity**
Non-Hispanic White	521
Black	0
Hispanic	18
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	234
From 75 to 84	237
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Timothy L. Kerwin, MD in 2017

Hypertension	70
High Cholesterol	61
Stroke	4
Ischemic Heart Disease	41
Depression	18
Chronic Kidney Disease	37
Asthma	4
Osteoperosis	9
Atrial Fibrilation	15
Heart Failure	19
Chronic Obstructive Pulmonary Disease	19
Diabetes	29
Dementia	11
Cancer	74

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Timothy L. Kerwin, MD treated as a radiation oncologist in Naples, FL during 2018 were radiation therapy and image guided procedures.

Volume of procedures performed by Dr. Timothy L. Kerwin, MD for Medicare patients.

doctor visit	2216
image guided procedures	71
radiation therapy	1440

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy L. Kerwin, MD.

**Gender**
Male	372
Female	177

**Ethnicity**
Non-Hispanic White	504
Black	0
Hispanic	27
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	215
From 75 to 84	247
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Timothy L. Kerwin, MD in 2018

Hypertension	71
High Cholesterol	70
Stroke	6
Ischemic Heart Disease	41
Depression	19
Chronic Kidney Disease	30
Asthma	5
Osteoperosis	7
Atrial Fibrilation	15
Heart Failure	19
Chronic Obstructive Pulmonary Disease	18
Diabetes	26
Dementia	12
Cancer	75

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Timothy L. Kerwin, MD treated as a radiation oncologist in Naples, FL during 2019 were radiation therapy, image guided procedures and hormone therapy.

Volume of procedures performed by Dr. Timothy L. Kerwin, MD for Medicare patients.

doctor visit	2410
hormone therapy	15
image guided procedures	85
radiation therapy	1449

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy L. Kerwin, MD.

**Gender**
Male	443
Female	190

**Ethnicity**
Non-Hispanic White	583
Black	0
Hispanic	28
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	259
From 75 to 84	275
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Timothy L. Kerwin, MD in 2019

Hypertension	73
High Cholesterol	72
Stroke	6
Ischemic Heart Disease	46
Depression	19
Chronic Kidney Disease	33
Asthma	6
Osteoperosis	8
Atrial Fibrilation	15
Heart Failure	20
Chronic Obstructive Pulmonary Disease	16
Diabetes	24
Dementia	12
Cancer	73

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Timothy L. Kerwin, MD treated as a radiation oncologist in Naples, FL during 2020 were radiation therapy, image guided procedures and hormone therapy.

Volume of procedures performed by Dr. Timothy L. Kerwin, MD for Medicare patients.

doctor visit	2539
hormone therapy	38
image guided procedures	91
radiation therapy	1812

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy L. Kerwin, MD.

**Gender**
Male	449
Female	151

**Ethnicity**
Non-Hispanic White	561
Black	0
Hispanic	0
Asian	0
Other	22
Native American	0

**Age**
From 65 to 74	237
From 75 to 84	262
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Timothy L. Kerwin, MD in 2020

Hypertension	73
High Cholesterol	70
Stroke	5
Ischemic Heart Disease	50
Depression	17
Chronic Kidney Disease	34
Asthma	5
Osteoperosis	9
Atrial Fibrilation	19
Heart Failure	18
Chronic Obstructive Pulmonary Disease	18
Diabetes	28
Dementia	10
Cancer	70

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Timothy L. Kerwin, MD treated as a radiation oncologist in Naples, FL during 2021 were radiation therapy, image guided procedures and hormone therapy.

Volume of procedures performed by Dr. Timothy L. Kerwin, MD for Medicare patients.

doctor visit	1615
hormone therapy	12
image guided procedures	86
radiation therapy	1677

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy L. Kerwin, MD.

**Gender**
Male	351
Female	150

**Ethnicity**
Non-Hispanic White	469
Black	0
Hispanic	0
Asian	0
Other	13
Native American	0

**Age**
From 65 to 74	194
From 75 to 84	219
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Timothy L. Kerwin, MD in 2021

Hypertension	73
High Cholesterol	74
Stroke	6
Ischemic Heart Disease	46
Depression	17
Chronic Kidney Disease	32
Asthma	5
Osteoperosis	9
Atrial Fibrilation	16
Heart Failure	19
Chronic Obstructive Pulmonary Disease	15
Diabetes	22
Dementia	10
Cancer	71

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Timothy L. Kerwin, MD treated as a radiation oncologist in Naples, FL during 2022 were radiation therapy and image guided procedures.

Volume of procedures performed by Dr. Timothy L. Kerwin, MD for Medicare patients.

doctor visit	1622
image guided procedures	81
radiation therapy	1548

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy L. Kerwin, MD.

**Gender**
Male	448
Female	272

**Ethnicity**
Non-Hispanic White	681
Black	0
Hispanic	0
Asian	0
Other	21
Native American	0

**Age**
From 65 to 74	263
From 75 to 84	336
85 and over	107
Less than 65	14

Conditions of Medicare patients treated by Dr. Timothy L. Kerwin, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	34
Depression	16
Chronic Kidney Disease	24
Asthma	6
Osteoperosis	14
Atrial Fibrilation	22
Heart Failure	15
Chronic Obstructive Pulmonary Disease	18
Diabetes	28
Dementia	6
Cancer	74

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Timothy L. Kerwin, MD for Medicare patients.

The highest averages for the top procedures that Dr. Timothy L. Kerwin, MD treated as a radiation oncologist in Naples, FL were radiation therapy, image guided procedures, CT scan and pelvic imaging.

abdominal imaging	70
CT scan	70
doctor visit	1953
hormone therapy	20
hospital care	15
image guided procedures	74
inpatient care	15
pelvic imaging	70
radiation therapy	2627

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Timothy L. Kerwin, MD.

**Gender**
Male	430
Female	192

**Ethnicity**
Black / African American	2
Asian / Pacific Islander	0
Non-Hispanic White	581
Native American / Alaskan Native	0
Hispanic	16
Other	5

**Age**
75 to 84	265
85 and over	46
Less than 65	9
65 to 74	260

Average of Total of Conditions of Medicare patients treated by Dr. Timothy L. Kerwin, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Timothy L. Kerwin, MD treated were cancer, hypertension, high cholesterol and ischemic heart disease.

Hypertension	64
High Cholesterol	61
Stroke	5
Ischemic Heart Disease	38
Depression	14
Chronic Kidney Disease	27
Asthma	5
Osteoporosis	7
Heart Failure	15
Chronic Obstructive Pulmonary Disease	14
Diabetes	23
Atrial Fibrillation	14
Dementia	8
Cancer	66

Education & Training

Dr. Timothy L. Kerwin, MD graduated from Emory University School of Medicine. He completed residency at Kaiser Permanente Los Angeles Medical Center. He is certified by the American Board of Radiology Radiation Oncology and has a state license in California.

Medical School: Emory University School of Medicine

Residency: Kaiser Permanente Los Angeles Medical Center

Board Certification: American Board of Radiology Radiation Oncology

Licensed In: California

Affiliations & Hospitals

Dr. Timothy L. Kerwin, MD is associated with these hospitals and organizations:

Physicians Regional Healthcare System

NCH Healthcare System

Premiere Oncology

Ratings & Reviews

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General Payments

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

**Payments by Company**
Bayer HealthCare Pharmaceuticals Inc.	$62,217 Xofigo $51,274	Nubeqa $10,942
Myriad Genetic Laboratories, Inc.	$21,967 Prolaris $18,728	BRACANALYSIS CDX $2,615	BRAC CDx $625
Novocure Inc.	$2,539 Oncology $2,446	Optune $92
Pfizer Inc.	$298 XTANDI $274	TALZENNA $24
Novartis Pharmaceuticals Corporation	$217 Lutathera $138	TASIGNA $14	JADENU $11	$54
Other	$2,253 PROVENGE $268	Erleada $223	LIBTAYO $154	SUBSYS $150	SpaceOAR $137	Other $1,322

**Types of Payments**
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$40,314
Consulting Fee	$32,197
Honoraria	$7,950
Food and Beverage	$5,544
Travel and Lodging	$3,486

Research Payments

Dr. Timothy L. Kerwin, MD has received 2 research payments totaling $96,090.

Biography

Dr. Timothy Kerwin specializes in radiation oncology. Dr. Kerwin graduated from Emory University School of Medicine. He trained at Kaiser Permanente Los Angeles Medical Center for his residency. His professional affiliations include Physicians Regional Healthcare System and NCH North Naples Hospital.

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Dr. Timothy L. Kerwin, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Timothy L. Kerwin, 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. Timothy L. Kerwin, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Timothy L. Kerwin, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Timothy L. Kerwin, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Timothy L. Kerwin, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Timothy L. Kerwin, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Timothy L. Kerwin, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Timothy L. Kerwin, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Timothy L. Kerwin, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Timothy L. Kerwin, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Timothy L. Kerwin, 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. Timothy L. Kerwin, MD From 2012 - 2022

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Research Payments

Biography

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