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Home > PA Providers > Radiation Oncologists

Dr. Mark L. Sobczak, MD

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Specializes in: Radiation Oncology

211 S Gulph Road Suite 200
King of Prussia, PA 19406

(610) 382-5900

Dr. Mark L. Sobczak, MD is a radiation oncologist in King of Prussia, PA specializing in radiation oncology.

Office Locations

211 S Gulph Road Suite 200
King of Prussia, PA 19406

(610) 382-5900

(610) 382-5919

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333 Cottman Avenue
Philadelphia, PA 19111

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In The News

“He was joined by Dr. Elizabeth Plimack, a medical oncologist, and radiation oncologist Dr. Mark Sobczak.”—"Local walk raises more than $20,000 for bladder cancer research", The Times Herald, May 2014

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Mark L. Sobczak, MD treated as a radiation oncologist in King of Prussia, PA during 2012 were radiation therapy.

Volume of procedures performed by Dr. Mark L. Sobczak, MD for Medicare patients.

doctor visit	947
radiation therapy	3262

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Mark L. Sobczak, MD treated as a radiation oncologist in King of Prussia, PA during 2013 were radiation therapy.

Volume of procedures performed by Dr. Mark L. Sobczak, MD for Medicare patients.

doctor visit	505
radiation therapy	1665

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark L. Sobczak, MD.

**Ethnicity**
Non-Hispanic White	232
Black	16
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	124
From 75 to 84	110
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Mark L. Sobczak, MD in 2013

Hypertension	70
High Cholesterol	67
Stroke	5
Ischemic Heart Disease	42
Depression	8
Chronic Kidney Disease	19
Asthma	0
Osteoperosis	0
Atrial Fibrilation	12
Heart Failure	12
Chronic Obstructive Pulmonary Disease	8
Diabetes	30
Dementia	7
Cancer	75

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Mark L. Sobczak, MD treated as a radiation oncologist in King of Prussia, PA during 2014 were radiation therapy.

Volume of procedures performed by Dr. Mark L. Sobczak, MD for Medicare patients.

doctor visit	727
radiation therapy	2072

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark L. Sobczak, MD.

**Gender**
Male	352
Female	17

**Ethnicity**
Non-Hispanic White	312
Black	46
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	206
From 75 to 84	134
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Mark L. Sobczak, MD in 2014

Hypertension	70
High Cholesterol	62
Stroke	0
Ischemic Heart Disease	38
Depression	10
Chronic Kidney Disease	21
Asthma	5
Osteoperosis	0
Atrial Fibrilation	12
Heart Failure	14
Chronic Obstructive Pulmonary Disease	10
Diabetes	32
Dementia	5
Cancer	75

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

Volume of procedures performed by Dr. Mark L. Sobczak, MD for Medicare patients.

doctor visit	638

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark L. Sobczak, MD.

**Gender**
Male	722
Female	42

**Ethnicity**
Non-Hispanic White	638
Black	78
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	432
From 75 to 84	284
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Mark L. Sobczak, MD in 2015

Hypertension	68
High Cholesterol	65
Stroke	4
Ischemic Heart Disease	40
Depression	11
Chronic Kidney Disease	21
Asthma	7
Osteoperosis	3
Atrial Fibrilation	12
Heart Failure	11
Chronic Obstructive Pulmonary Disease	12
Diabetes	32
Dementia	0
Cancer	75

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

Volume of procedures performed by Dr. Mark L. Sobczak, MD for Medicare patients.

doctor visit	1305

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark L. Sobczak, MD.

**Gender**
Male	566
Female	58

**Ethnicity**
Non-Hispanic White	522
Black	71
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	362
From 75 to 84	210
85 and over	28
Less than 65	24

Conditions of Medicare patients treated by Dr. Mark L. Sobczak, MD in 2016

Hypertension	71
High Cholesterol	63
Stroke	5
Ischemic Heart Disease	38
Depression	16
Chronic Kidney Disease	27
Asthma	18
Osteoperosis	3
Atrial Fibrilation	14
Heart Failure	14
Chronic Obstructive Pulmonary Disease	17
Diabetes	34
Dementia	7
Cancer	75

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

Volume of procedures performed by Dr. Mark L. Sobczak, MD for Medicare patients.

doctor visit	1503

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark L. Sobczak, MD.

**Gender**
Male	638
Female	80

**Ethnicity**
Non-Hispanic White	604
Black	73
Hispanic	0
Asian	0
Other	28
Native American	0

**Age**
From 65 to 74	417
From 75 to 84	241
85 and over	30
Less than 65	30

Conditions of Medicare patients treated by Dr. Mark L. Sobczak, MD in 2017

Hypertension	70
High Cholesterol	53
Stroke	5
Ischemic Heart Disease	39
Depression	15
Chronic Kidney Disease	32
Asthma	6
Osteoperosis	4
Atrial Fibrilation	14
Heart Failure	13
Chronic Obstructive Pulmonary Disease	15
Diabetes	32
Dementia	7
Cancer	75

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

Volume of procedures performed by Dr. Mark L. Sobczak, MD for Medicare patients.

doctor visit	738

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark L. Sobczak, MD.

**Gender**
Male	365
Female	32

**Ethnicity**
Non-Hispanic White	319
Black	49
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	233
From 75 to 84	131
85 and over	12
Less than 65	21

Conditions of Medicare patients treated by Dr. Mark L. Sobczak, MD in 2018

Hypertension	70
High Cholesterol	60
Stroke	5
Ischemic Heart Disease	35
Depression	18
Chronic Kidney Disease	34
Asthma	6
Osteoperosis	3
Atrial Fibrilation	12
Heart Failure	11
Chronic Obstructive Pulmonary Disease	14
Diabetes	26
Dementia	9
Cancer	75

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

Volume of procedures performed by Dr. Mark L. Sobczak, MD for Medicare patients.

doctor visit	1202

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark L. Sobczak, MD.

**Gender**
Male	386
Female	32

**Ethnicity**
Non-Hispanic White	351
Black	31
Hispanic	0
Asian	0
Other	25
Native American	0

**Age**
From 65 to 74	255
From 75 to 84	138
85 and over	12
Less than 65	13

Conditions of Medicare patients treated by Dr. Mark L. Sobczak, MD in 2019

Hypertension	70
High Cholesterol	69
Stroke	3
Ischemic Heart Disease	33
Depression	14
Chronic Kidney Disease	28
Asthma	5
Osteoperosis	3
Atrial Fibrilation	12
Heart Failure	10
Chronic Obstructive Pulmonary Disease	10
Diabetes	26
Dementia	7
Cancer	75

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

Volume of procedures performed by Dr. Mark L. Sobczak, MD for Medicare patients.

doctor visit	852

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark L. Sobczak, MD.

**Ethnicity**
Non-Hispanic White	191
Black	20
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	145
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Mark L. Sobczak, MD in 2020

Hypertension	65
High Cholesterol	64
Stroke	0
Ischemic Heart Disease	38
Depression	11
Chronic Kidney Disease	27
Asthma	0
Osteoperosis	0
Atrial Fibrilation	11
Heart Failure	9
Chronic Obstructive Pulmonary Disease	9
Diabetes	22
Dementia	7
Cancer	75

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

Volume of procedures performed by Dr. Mark L. Sobczak, MD for Medicare patients.

doctor visit	426

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark L. Sobczak, MD.

**Gender**
Male	180
Female	45

**Ethnicity**
Non-Hispanic White	191
Black	20
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	122
From 75 to 84	83
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Mark L. Sobczak, MD in 2021

Hypertension	73
High Cholesterol	70
Stroke	0
Ischemic Heart Disease	38
Depression	15
Chronic Kidney Disease	30
Asthma	6
Osteoperosis	8
Atrial Fibrilation	11
Heart Failure	12
Chronic Obstructive Pulmonary Disease	15
Diabetes	20
Dementia	0
Cancer	75

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

Volume of procedures performed by Dr. Mark L. Sobczak, MD for Medicare patients.

doctor visit	71

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark L. Sobczak, MD.

**Gender**
Male	104
Female	42

**Ethnicity**
Non-Hispanic White	121
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	89
From 75 to 84	45
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Mark L. Sobczak, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	34
Depression	12
Chronic Kidney Disease	25
Asthma	11
Osteoperosis	11
Atrial Fibrilation	14
Heart Failure	9
Chronic Obstructive Pulmonary Disease	27
Diabetes	29
Dementia	0
Cancer	75

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Mark L. Sobczak, MD for Medicare patients.

The highest averages for the top procedures that Dr. Mark L. Sobczak, MD treated as a radiation oncologist in King of Prussia, PA were radiation therapy.

doctor visit	810
radiation therapy	2333

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Mark L. Sobczak, MD.

**Gender**
Male	301
Female	31

**Ethnicity**
Black / African American	36
Asian / Pacific Islander	0
Non-Hispanic White	316
Native American / Alaskan Native	0
Hispanic	0
Other	4

**Age**
75 to 84	125
85 and over	7
Less than 65	8
65 to 74	216

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

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

Hypertension	63
High Cholesterol	58
Stroke	2
Ischemic Heart Disease	34
Depression	11
Chronic Kidney Disease	24
Asthma	5
Osteoporosis	3
Heart Failure	10
Chronic Obstructive Pulmonary Disease	12
Diabetes	25
Atrial Fibrillation	11
Dementia	4
Cancer	68

Education & Training

He has a state license in Maryland.

Licensed In: Maryland

Ratings & Reviews

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General Payments

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

**Payments by Company**
Astellas Pharma US Inc	$244 XTANDI $144	$100
Avadel Specialty Pharmaceuticals, LLC	$188 Noctiva $188
Bayer HealthCare Pharmaceuticals Inc.	$157 Xofigo $122	Nubeqa $34
Ferring Pharmaceuticals Inc.	$111 FIRMAGON $111
Foundation Medicine, Inc.	$83 FOUNDATIONONE $83
Other	$260 PROVENGE $105	ELIGARD $41	Axumin $36	TUKYSA $23	ZYTIGA $22	Other $32

**Types of Payments**
Food and Beverage	$942
Education	$100

Biography

Dr. Mark Sobczak is a radiation oncology specialist in Philadelphia, PA and King of Prussia, PA. Dr. Sobczak has obtained a license to practice in Maryland.