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Home > TX Providers > Radiation Oncologists

Dr. David L. Janssen, MD

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Specializes in: Radiation Oncology

University of Texas Medical Branch School of Medicine (1982)

2807 N Ben Wilson Street Suite 201
Victoria, TX 77901

(361) 576-9812

Dr. David L. Janssen, MD is a radiation oncologist in Victoria, TX specializing in radiation oncology. He graduated from University of Texas Medical Branch School of Medicine in 1982 and has 44 years of experience. Dr. David L. Janssen, MD is affiliated with CITIZENS MEDICAL CENTER COUNTY OF VICTORIA.

Office Locations

2807 N Ben Wilson Street Suite 201
Victoria, TX 77901

(361) 576-9812

(361) 574-1580

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Noteworthy Medicare Patient Procedures Performed by Dr. David L. Janssen, MD in 2023

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

Top 5%

By Affordability:

radiation therapy

In 2023, Dr. David L. Janssen, MD had a list price for radiation therapy that was lower than the list prices billed to Medicare by 95% of providers in related specialties within Texas. 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. David L. Janssen, MD treated as a radiation oncologist in Victoria, TX during 2012 were radiation therapy.

Volume of procedures performed by Dr. David L. Janssen, MD for Medicare patients.

doctor visit	656
radiation therapy	46

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. David L. Janssen, MD treated as a radiation oncologist in Victoria, TX during 2013 were radiation therapy.

Volume of procedures performed by Dr. David L. Janssen, MD for Medicare patients.

doctor visit	573
radiation therapy	47

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. David L. Janssen, MD.

**Gender**
Male	77
Female	90

**Ethnicity**
Non-Hispanic White	125
Black	0
Hispanic	28
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	77
From 75 to 84	63
85 and over	12
Less than 65	15

Conditions of Medicare patients treated by Dr. David L. Janssen, MD in 2013

Hypertension	75
High Cholesterol	56
Stroke	0
Ischemic Heart Disease	39
Depression	17
Chronic Kidney Disease	18
Asthma	10
Osteoperosis	10
Atrial Fibrilation	16
Heart Failure	28
Chronic Obstructive Pulmonary Disease	28
Diabetes	31
Dementia	8
Cancer	74

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. David L. Janssen, MD treated as a radiation oncologist in Victoria, TX during 2014 were radiation therapy.

Volume of procedures performed by Dr. David L. Janssen, MD for Medicare patients.

doctor visit	500
radiation therapy	43

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. David L. Janssen, MD.

**Gender**
Male	64
Female	70

**Ethnicity**
Non-Hispanic White	105
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	64
From 75 to 84	46
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. David L. Janssen, MD in 2014

Hypertension	75
High Cholesterol	57
Stroke	0
Ischemic Heart Disease	43
Depression	20
Chronic Kidney Disease	20
Asthma	0
Osteoperosis	15
Atrial Fibrilation	10
Heart Failure	18
Chronic Obstructive Pulmonary Disease	26
Diabetes	31
Dementia	8
Cancer	66

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. David L. Janssen, MD treated as a radiation oncologist in Victoria, TX during 2015 were radiation therapy.

Volume of procedures performed by Dr. David L. Janssen, MD for Medicare patients.

doctor visit	345
radiation therapy	22

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. David L. Janssen, MD.

**Gender**
Male	146
Female	124

**Ethnicity**
Non-Hispanic White	208
Black	0
Hispanic	40
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	100
From 75 to 84	108
85 and over	38
Less than 65	24

Conditions of Medicare patients treated by Dr. David L. Janssen, MD in 2015

Hypertension	75
High Cholesterol	63
Stroke	9
Ischemic Heart Disease	50
Depression	21
Chronic Kidney Disease	28
Asthma	16
Osteoperosis	12
Atrial Fibrilation	21
Heart Failure	29
Chronic Obstructive Pulmonary Disease	27
Diabetes	38
Dementia	11
Cancer	70

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

Volume of procedures performed by Dr. David L. Janssen, MD for Medicare patients.

doctor visit	606

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. David L. Janssen, MD.

**Gender**
Male	87
Female	90

**Ethnicity**
Non-Hispanic White	138
Black	14
Hispanic	25
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	73
From 75 to 84	75
85 and over	17
Less than 65	12

Conditions of Medicare patients treated by Dr. David L. Janssen, MD in 2016

Hypertension	75
High Cholesterol	66
Stroke	6
Ischemic Heart Disease	44
Depression	21
Chronic Kidney Disease	37
Asthma	22
Osteoperosis	13
Atrial Fibrilation	14
Heart Failure	26
Chronic Obstructive Pulmonary Disease	22
Diabetes	32
Dementia	14
Cancer	66

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

Volume of procedures performed by Dr. David L. Janssen, MD for Medicare patients.

doctor visit	383

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. David L. Janssen, MD.

**Gender**
Male	55
Female	69

**Ethnicity**
Non-Hispanic White	101
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	58
From 75 to 84	44
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. David L. Janssen, MD in 2017

Hypertension	75
High Cholesterol	57
Stroke	0
Ischemic Heart Disease	40
Depression	27
Chronic Kidney Disease	39
Asthma	0
Osteoperosis	12
Atrial Fibrilation	13
Heart Failure	25
Chronic Obstructive Pulmonary Disease	23
Diabetes	32
Dementia	19
Cancer	75

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. David L. Janssen, MD treated as a radiation oncologist in Victoria, TX during 2018 were radiation therapy.

Volume of procedures performed by Dr. David L. Janssen, MD for Medicare patients.

doctor visit	372
radiation therapy	21

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. David L. Janssen, MD.

**Gender**
Male	66
Female	76

**Ethnicity**
Non-Hispanic White	110
Black	0
Hispanic	19
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	62
From 75 to 84	46
85 and over	23
Less than 65	11

Conditions of Medicare patients treated by Dr. David L. Janssen, MD in 2018

Hypertension	75
High Cholesterol	61
Stroke	0
Ischemic Heart Disease	46
Depression	20
Chronic Kidney Disease	42
Asthma	9
Osteoperosis	11
Atrial Fibrilation	13
Heart Failure	18
Chronic Obstructive Pulmonary Disease	26
Diabetes	35
Dementia	13
Cancer	61

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. David L. Janssen, MD treated as a radiation oncologist in Victoria, TX during 2019 were radiation therapy.

Volume of procedures performed by Dr. David L. Janssen, MD for Medicare patients.

doctor visit	674
radiation therapy	41

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. David L. Janssen, MD.

**Gender**
Male	101
Female	91

**Ethnicity**
Non-Hispanic White	144
Black	0
Hispanic	35
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	75
From 75 to 84	72
85 and over	27
Less than 65	18

Conditions of Medicare patients treated by Dr. David L. Janssen, MD in 2019

Hypertension	75
High Cholesterol	61
Stroke	0
Ischemic Heart Disease	46
Depression	26
Chronic Kidney Disease	41
Asthma	6
Osteoperosis	11
Atrial Fibrilation	10
Heart Failure	28
Chronic Obstructive Pulmonary Disease	23
Diabetes	42
Dementia	15
Cancer	67

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. David L. Janssen, MD treated as a radiation oncologist in Victoria, TX during 2020 were radiation therapy.

Volume of procedures performed by Dr. David L. Janssen, MD for Medicare patients.

doctor visit	424
radiation therapy	25

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. David L. Janssen, MD.

**Gender**
Male	88
Female	68

**Ethnicity**
Non-Hispanic White	119
Black	0
Hispanic	26
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	67
From 75 to 84	66
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. David L. Janssen, MD in 2020

Hypertension	75
High Cholesterol	67
Stroke	0
Ischemic Heart Disease	53
Depression	26
Chronic Kidney Disease	42
Asthma	0
Osteoperosis	14
Atrial Fibrilation	11
Heart Failure	24
Chronic Obstructive Pulmonary Disease	21
Diabetes	37
Dementia	12
Cancer	75

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. David L. Janssen, MD treated as a radiation oncologist in Victoria, TX during 2021 were radiation therapy.

Volume of procedures performed by Dr. David L. Janssen, MD for Medicare patients.

doctor visit	311
radiation therapy	35

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. David L. Janssen, MD.

**Gender**
Male	69
Female	59

**Ethnicity**
Non-Hispanic White	97
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	63
From 75 to 84	42
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. David L. Janssen, MD in 2021

Hypertension	75
High Cholesterol	65
Stroke	0
Ischemic Heart Disease	45
Depression	23
Chronic Kidney Disease	39
Asthma	0
Osteoperosis	11
Atrial Fibrilation	11
Heart Failure	24
Chronic Obstructive Pulmonary Disease	18
Diabetes	34
Dementia	9
Cancer	75

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. David L. Janssen, MD treated as a radiation oncologist in Victoria, TX during 2022 were radiation therapy.

Volume of procedures performed by Dr. David L. Janssen, MD for Medicare patients.

doctor visit	341
radiation therapy	28

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. David L. Janssen, MD.

**Gender**
Male	91
Female	56

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

**Age**
From 65 to 74	70
From 75 to 84	49
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. David L. Janssen, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	29
Depression	12
Chronic Kidney Disease	21
Asthma	11
Osteoperosis	14
Atrial Fibrilation	20
Heart Failure	22
Chronic Obstructive Pulmonary Disease	24
Diabetes	37
Dementia	0
Cancer	75

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. David L. Janssen, MD for Medicare patients.

The highest averages for the top procedures that Dr. David L. Janssen, MD treated as a radiation oncologist in Victoria, TX were radiation therapy.

doctor visit	471
radiation therapy	34

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. David L. Janssen, MD.

**Gender**
Male	76
Female	72

**Ethnicity**
Black / African American	1
Asian / Pacific Islander	0
Non-Hispanic White	115
Native American / Alaskan Native	0
Hispanic	15
Other	0

**Age**
75 to 84	55
85 and over	10
Less than 65	7
65 to 74	64

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

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

Hypertension	68
High Cholesterol	57
Stroke	2
Ischemic Heart Disease	39
Depression	19
Chronic Kidney Disease	29
Asthma	6
Osteoporosis	11
Heart Failure	22
Chronic Obstructive Pulmonary Disease	21
Diabetes	31
Atrial Fibrillation	12
Dementia	9
Cancer	64

Education & Training

Dr. David L. Janssen, MD graduated from University of Texas Medical Branch School of Medicine in 1982. He has a state license in Texas.

Medical School: University of Texas Medical Branch School of Medicine (1982)

Licensed In: Texas

Affiliations & Hospitals

Dr. David L. Janssen, MD is associated with these hospitals and organizations:

CITIZENS MEDICAL CENTER COUNTY OF VICTORIA

Ratings & Reviews

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General Payments

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

**Payments by Company**
Varian Medical Systems, Inc.	$46 TrueBeam $22	$24
Lilly USA, LLC	$28 ERBITUX $28
Bayer HealthCare Pharmaceuticals Inc.	$28 Xofigo $28
INSYS Therapeutics Inc	$27 SUBSYS $27

**Types of Payments**
Food and Beverage	$129

Biography

Dr. David Janssen is a radiation oncology specialist. Dr. Janssen attended medical school at the University of Texas Medical Branch School of Medicine.

Select Year:

Dr. David L. Janssen, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. David L. Janssen, MD in 2023

By Affordability:

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. David L. Janssen, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. David L. Janssen, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. David L. Janssen, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. David L. Janssen, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. David L. Janssen, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. David L. Janssen, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. David L. Janssen, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. David L. Janssen, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. David L. Janssen, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. David L. Janssen, 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. David L. Janssen, MD From 2012 - 2022

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Biography

Other Providers in Victoria, TX