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Dr. Thomas A. Marsland, MD

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Specializes in: Medical Oncology, Adult Oncology and Adult Hematology

2161 Kingsley Avenue Suite 200
Orange Park, FL 32073

(904) 276-2303

Dr. Thomas A. Marsland, MD is a medical oncologist in Petaluma, CA specializing in medical oncology, adult oncology and adult hematology.

Office Locations

110 Lynch Creek Way Suite A
Petaluma, CA 94954

(707) 763-0600

(707) 765-1757

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1600 Sw Archer Road
Gainesville, FL 32610

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2161 Kingsley Avenue Suite 200
Orange Park, FL 32073

(904) 276-2303

(904) 272-3659

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Noteworthy Medicare Patient Procedures Performed by Dr. Thomas A. Marsland, MD in 2023

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

Top 5%

By Affordability:

hospital care

inpatient care

inpatient hospital care

In 2023, Dr. Thomas A. Marsland, MD had a list price for hospital care, inpatient care, and inpatient hospital care (for patient admitted to hospital) 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.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Thomas A. Marsland, MD treated as a medical oncologist in Petaluma, CA during 2012 were lab tests, blood draw, minimally invasive procedures and chemotherapy.

Volume of procedures performed by Dr. Thomas A. Marsland, MD for Medicare patients.

biological response modifier (BRM) therapy	489
blood draw	2089
bone marrow tests	11
chemotherapy	489
diagnostic procedures	11
doctor visit	1607
hospital care	410
inpatient care	410
lab tests	5160
minimally invasive procedures	588
port flush	159
preventive care	14

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Thomas A. Marsland, MD treated as a medical oncologist in Petaluma, CA during 2013 were lab tests, blood draw, minimally invasive procedures and hospital care.

Volume of procedures performed by Dr. Thomas A. Marsland, MD for Medicare patients.

biological response modifier (BRM) therapy	321
blood draw	1700
chemotherapy	321
doctor visit	1402
hospital care	411
inpatient care	411
lab tests	3380
minimally invasive procedures	473
port flush	82

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas A. Marsland, MD.

**Gender**
Male	190
Female	326

**Ethnicity**
Non-Hispanic White	455
Black	43
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	214
From 75 to 84	202
85 and over	56
Less than 65	44

Conditions of Medicare patients treated by Dr. Thomas A. Marsland, MD in 2013

Hypertension	71
High Cholesterol	61
Stroke	7
Ischemic Heart Disease	41
Depression	24
Chronic Kidney Disease	34
Asthma	8
Osteoperosis	13
Atrial Fibrilation	13
Heart Failure	18
Chronic Obstructive Pulmonary Disease	28
Diabetes	37
Dementia	13
Cancer	51

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Thomas A. Marsland, MD treated as a medical oncologist in Petaluma, CA during 2014 were lab tests, blood draw, hospital care and inpatient care.

Volume of procedures performed by Dr. Thomas A. Marsland, MD for Medicare patients.

biological response modifier (BRM) therapy	236
blood draw	1555
chemotherapy	236
doctor visit	1357
hormone therapy	71
hospital care	418
inpatient care	418
lab tests	2983
minimally invasive procedures	352
port flush	69
preventive care	16

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas A. Marsland, MD.

**Gender**
Male	282
Female	433

**Ethnicity**
Non-Hispanic White	631
Black	49
Hispanic	15
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	310
From 75 to 84	256
85 and over	91
Less than 65	58

Conditions of Medicare patients treated by Dr. Thomas A. Marsland, MD in 2014

Hypertension	73
High Cholesterol	60
Stroke	7
Ischemic Heart Disease	44
Depression	22
Chronic Kidney Disease	39
Asthma	7
Osteoperosis	10
Atrial Fibrilation	16
Heart Failure	23
Chronic Obstructive Pulmonary Disease	28
Diabetes	36
Dementia	14
Cancer	45

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Thomas A. Marsland, MD treated as a medical oncologist in Petaluma, CA during 2015 were lab tests, blood draw, minimally invasive procedures and hospital care.

Volume of procedures performed by Dr. Thomas A. Marsland, MD for Medicare patients.

biological response modifier (BRM) therapy	253
blood draw	1429
chemotherapy	253
doctor visit	1391
hormone therapy	66
hospital care	352
inpatient care	352
lab tests	3060
minimally invasive procedures	417
port flush	71
preventive care	12

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas A. Marsland, MD.

**Gender**
Male	480
Female	836

**Ethnicity**
Non-Hispanic White	1140
Black	120
Hispanic	22
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	534
From 75 to 84	506
85 and over	156
Less than 65	120

Conditions of Medicare patients treated by Dr. Thomas A. Marsland, MD in 2015

Hypertension	75
High Cholesterol	64
Stroke	8
Ischemic Heart Disease	44
Depression	23
Chronic Kidney Disease	44
Asthma	19
Osteoperosis	12
Atrial Fibrilation	17
Heart Failure	23
Chronic Obstructive Pulmonary Disease	29
Diabetes	43
Dementia	13
Cancer	44

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Thomas A. Marsland, MD treated as a medical oncologist in Petaluma, CA during 2016 were lab tests, hospital care, inpatient care and blood draw.

Volume of procedures performed by Dr. Thomas A. Marsland, MD for Medicare patients.

biological response modifier (BRM) therapy	44
blood draw	195
chemotherapy	44
doctor visit	1312
hospital care	369
inpatient care	369
lab tests	396
minimally invasive procedures	60

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas A. Marsland, MD.

**Gender**
Male	198
Female	358

**Ethnicity**
Non-Hispanic White	488
Black	42
Hispanic	11
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	237
From 75 to 84	209
85 and over	66
Less than 65	44

Conditions of Medicare patients treated by Dr. Thomas A. Marsland, MD in 2016

Hypertension	75
High Cholesterol	63
Stroke	9
Ischemic Heart Disease	46
Depression	20
Chronic Kidney Disease	43
Asthma	34
Osteoperosis	19
Atrial Fibrilation	17
Heart Failure	25
Chronic Obstructive Pulmonary Disease	31
Diabetes	38
Dementia	13
Cancer	44

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Thomas A. Marsland, MD treated as a medical oncologist in Petaluma, CA during 2017 were blood draw, hospital care and inpatient care.

Volume of procedures performed by Dr. Thomas A. Marsland, MD for Medicare patients.

blood draw	476
doctor visit	1305
hospital care	171
inpatient care	171

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas A. Marsland, MD.

**Gender**
Male	222
Female	333

**Ethnicity**
Non-Hispanic White	484
Black	18
Hispanic	23
Asian	16
Other	14
Native American	0

**Age**
From 65 to 74	221
From 75 to 84	200
85 and over	80
Less than 65	54

Conditions of Medicare patients treated by Dr. Thomas A. Marsland, MD in 2017

Hypertension	69
High Cholesterol	55
Stroke	7
Ischemic Heart Disease	44
Depression	24
Chronic Kidney Disease	38
Asthma	8
Osteoperosis	12
Atrial Fibrilation	15
Heart Failure	25
Chronic Obstructive Pulmonary Disease	25
Diabetes	30
Dementia	10
Cancer	43

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Thomas A. Marsland, MD treated as a medical oncologist in Petaluma, CA during 2018 were blood draw, hospital care and inpatient care.

Volume of procedures performed by Dr. Thomas A. Marsland, MD for Medicare patients.

blood draw	507
doctor visit	1604
hospital care	119
inpatient care	119

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas A. Marsland, MD.

**Gender**
Male	179
Female	255

**Ethnicity**
Non-Hispanic White	377
Black	0
Hispanic	23
Asian	14
Other	0
Native American	0

**Age**
From 65 to 74	158
From 75 to 84	160
85 and over	77
Less than 65	39

Conditions of Medicare patients treated by Dr. Thomas A. Marsland, MD in 2018

Hypertension	72
High Cholesterol	56
Stroke	8
Ischemic Heart Disease	41
Depression	25
Chronic Kidney Disease	38
Asthma	7
Osteoperosis	11
Atrial Fibrilation	18
Heart Failure	26
Chronic Obstructive Pulmonary Disease	22
Diabetes	26
Dementia	13
Cancer	43

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Thomas A. Marsland, MD treated as a medical oncologist in Petaluma, CA during 2019 were hospital care and inpatient care.

Volume of procedures performed by Dr. Thomas A. Marsland, MD for Medicare patients.

doctor visit	1688
hospital care	118
inpatient care	118

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas A. Marsland, MD.

**Gender**
Male	196
Female	288

**Ethnicity**
Non-Hispanic White	418
Black	0
Hispanic	27
Asian	16
Other	0
Native American	0

**Age**
From 65 to 74	173
From 75 to 84	180
85 and over	95
Less than 65	36

Conditions of Medicare patients treated by Dr. Thomas A. Marsland, MD in 2019

Hypertension	72
High Cholesterol	56
Stroke	7
Ischemic Heart Disease	41
Depression	25
Chronic Kidney Disease	40
Asthma	10
Osteoperosis	15
Atrial Fibrilation	15
Heart Failure	26
Chronic Obstructive Pulmonary Disease	17
Diabetes	25
Dementia	16
Cancer	44

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Thomas A. Marsland, MD treated as a medical oncologist in Petaluma, CA during 2020 were hospital care and inpatient care.

Volume of procedures performed by Dr. Thomas A. Marsland, MD for Medicare patients.

doctor visit	1522
hospital care	107
inpatient care	107

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas A. Marsland, MD.

**Gender**
Male	191
Female	276

**Ethnicity**
Non-Hispanic White	401
Black	0
Hispanic	29
Asian	16
Other	0
Native American	0

**Age**
From 65 to 74	159
From 75 to 84	195
85 and over	82
Less than 65	31

Conditions of Medicare patients treated by Dr. Thomas A. Marsland, MD in 2020

Hypertension	71
High Cholesterol	57
Stroke	6
Ischemic Heart Disease	42
Depression	29
Chronic Kidney Disease	41
Asthma	9
Osteoperosis	15
Atrial Fibrilation	18
Heart Failure	25
Chronic Obstructive Pulmonary Disease	18
Diabetes	25
Dementia	15
Cancer	41

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Thomas A. Marsland, MD treated as a medical oncologist in Petaluma, CA during 2021 were hospital care and inpatient care.

Volume of procedures performed by Dr. Thomas A. Marsland, MD for Medicare patients.

doctor visit	1409
hospital care	14
inpatient care	14

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas A. Marsland, MD.

**Gender**
Male	172
Female	274

**Ethnicity**
Non-Hispanic White	371
Black	0
Hispanic	35
Asian	0
Other	18
Native American	0

**Age**
From 65 to 74	147
From 75 to 84	193
85 and over	84
Less than 65	22

Conditions of Medicare patients treated by Dr. Thomas A. Marsland, MD in 2021

Hypertension	70
High Cholesterol	55
Stroke	6
Ischemic Heart Disease	45
Depression	22
Chronic Kidney Disease	37
Asthma	7
Osteoperosis	16
Atrial Fibrilation	17
Heart Failure	24
Chronic Obstructive Pulmonary Disease	16
Diabetes	26
Dementia	12
Cancer	41

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Thomas A. Marsland, MD treated as a medical oncologist in Petaluma, CA during 2022 were hospital care and inpatient care.

Volume of procedures performed by Dr. Thomas A. Marsland, MD for Medicare patients.

doctor visit	1434
hospital care	30
inpatient care	30

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas A. Marsland, MD.

**Gender**
Male	188
Female	278

**Ethnicity**
Non-Hispanic White	392
Black	0
Hispanic	32
Asian	0
Other	22
Native American	0

**Age**
From 65 to 74	155
From 75 to 84	199
85 and over	86
Less than 65	26

Conditions of Medicare patients treated by Dr. Thomas A. Marsland, MD in 2022

Hypertension	75
High Cholesterol	71
Stroke	9
Ischemic Heart Disease	29
Depression	19
Chronic Kidney Disease	30
Asthma	11
Osteoperosis	18
Atrial Fibrilation	22
Heart Failure	20
Chronic Obstructive Pulmonary Disease	21
Diabetes	29
Dementia	6
Cancer	45

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Thomas A. Marsland, MD for Medicare patients.

The highest averages for the top procedures that Dr. Thomas A. Marsland, MD treated as a medical oncologist in Petaluma, CA were lab tests, blood draw, minimally invasive procedures and chemotherapy.

biological response modifier (BRM) therapy	268
blood draw	1135
bone marrow tests	11
chemotherapy	268
diagnostic procedures	11
doctor visit	1457
hormone therapy	68
hospital care	229
inpatient care	229
lab tests	2995
minimally invasive procedures	378
preventive care	14

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Thomas A. Marsland, MD.

**Gender**
Male	208
Female	332

**Ethnicity**
Black / African American	24
Asian / Pacific Islander	5
Non-Hispanic White	468
Native American / Alaskan Native	0
Hispanic	19
Other	4

**Age**
75 to 84	209
85 and over	79
Less than 65	43
65 to 74	209

Average of Total of Conditions of Medicare patients treated by Dr. Thomas A. Marsland, MD From 2012 - 2022

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

Hypertension	65
High Cholesterol	54
Stroke	6
Ischemic Heart Disease	37
Depression	21
Chronic Kidney Disease	34
Asthma	10
Osteoporosis	12
Heart Failure	21
Chronic Obstructive Pulmonary Disease	21
Diabetes	28
Atrial Fibrillation	15
Cancer	40
Dementia	11

Education & Training

He has a state license in California.

Licensed In: California

Ratings & Reviews

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General Payments

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

**Payments by Company**
Janssen Scientific Affairs, LLC	$8,767 ZYTIGA $7,980	DARZALEX $787
Genentech USA, Inc.	$3,699 TECENTRIQ $3,595	Perjeta $29	ROZLYTREK $21	Avastin $20	Venclexta $14	Other $21
Janssen Biotech, Inc.	$2,556 IMBRUVICA $1,867	DARZALEX $165	Balversa $24	$500
Puma Biotechnology, Inc.	$1,237 Nerlynx $1,237
Alexion Pharmaceuticals, Inc.	$925 SOLIRIS $874	ULTOMIRIS $51
Other	$5,321 TARCEVA $719	KEYTRUDA $292	INLYTA $210	IMBRUVICA $209	NINLARO $166	Other $3,726

**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	$8,750
Consulting Fee	$6,994
Food and Beverage	$4,234
Travel and Lodging	$1,274
Honoraria	$910
Other	$344

Ownership and Interest Payments

This table describes ownership payments received by Dr. Thomas A. Marsland, MD.

RT Oncology Services Corporation	2013	$60,041.00	Physician Covered Recipient	Preferred Stock
RT Oncology Services Corporation	2014	$60,041.00	Physician Covered Recipient	Preferred Stock
RT Oncology Services Corporation	2013	$60,041.00	Physician Covered Recipient	Preferred Stock
RT Oncology Services Corporation	2015	$60,041.00	Physician Covered Recipient	Preferred Stock
RT Oncology Services Corporation	2016	$0.00	Physician Covered Recipient	Sold Ownership Interest to Third Party

Biography

Dr. Thomas Marsland's specialties are adult hematology, adult oncology, and medical oncology. Dr. Marsland is affiliated with Providence Medical Foundation. He attended medical school at Temple University School of Medicine.