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Dr. Ronald J. Sweren, MD

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(Ronald Sweren, MD)

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Specializes in: Dermatology (Skin Disorders)

University of Maryland School of Medicine (1976)

1447 York Road Suite 102
Lutherville Timonium, MD 21093

(667) 214-1171

Dr. Ronald J. Sweren, MD is a dermatologist in Lutherville, MD specializing in dermatology (skin disorders). He graduated from University of Maryland School of Medicine in 1976 and has 50 years of experience. Dr. Ronald J. Sweren, MD is affiliated with University of Maryland Medical System and Johns Hopkins Health Care & Surgery Center - Green Spring Station, Lutherville.

Office Locations

10755 Falls Road Pavilion I SUITE 350 Johns Hopkins Medicine
Lutherville, MD 21093

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University of Maryland Medical System

1447 York Road Suite 102
Lutherville Timonium, MD 21093

(667) 214-1171

(410) 337-5107

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601 N Caroline Street #8
Baltimore, MD 21287

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Noteworthy Medicare Patient Procedures Performed by Dr. Ronald J. Sweren, MD in 2024

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

Top 10%

By Volume:

ultraviolet B phototherapy

In 2024, Dr. Ronald J. Sweren, MD performed more ultraviolet B (UVB) phototherapy procedures for Medicare patients than 90% of providers in related specialties within Maryland.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Ronald J. Sweren, MD treated as a dermatologist in Lutherville, MD during 2012 were removal of lesion (e.g. growth), skin procedures and diagnostic procedures.

Volume of procedures performed by Dr. Ronald J. Sweren, MD for Medicare patients.

diagnostic procedures	188
doctor visit	1306
removal of lesion (e.g. growth)	371
skin procedures	371

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Ronald J. Sweren, MD treated as a dermatologist in Lutherville, MD during 2013 were removal of lesion (e.g. growth), skin procedures, diagnostic procedures and apheresis.

Volume of procedures performed by Dr. Ronald J. Sweren, MD for Medicare patients.

apheresis	76
diagnostic procedures	165
doctor visit	1303
phototherapy (light therapy)	76
removal of lesion (e.g. growth)	474
skin procedures	474

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Ronald J. Sweren, MD.

**Gender**
Male	449
Female	421

**Ethnicity**
Non-Hispanic White	757
Black	78
Hispanic	0
Asian	0
Other	22
Native American	0

**Age**
From 65 to 74	404
From 75 to 84	275
85 and over	149
Less than 65	42

Conditions of Medicare patients treated by Dr. Ronald J. Sweren, MD in 2013

Hypertension	61
High Cholesterol	55
Stroke	4
Ischemic Heart Disease	35
Depression	14
Chronic Kidney Disease	14
Asthma	4
Osteoperosis	8
Atrial Fibrilation	11
Heart Failure	10
Chronic Obstructive Pulmonary Disease	7
Diabetes	24
Dementia	6
Cancer	13

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Ronald J. Sweren, MD treated as a dermatologist in Lutherville, MD during 2014 were removal of lesion (e.g. growth), skin procedures and diagnostic procedures.

Volume of procedures performed by Dr. Ronald J. Sweren, MD for Medicare patients.

diagnostic procedures	181
doctor visit	1307
removal of lesion (e.g. growth)	502
skin procedures	502

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Ronald J. Sweren, MD.

**Gender**
Male	499
Female	442

**Ethnicity**
Non-Hispanic White	820
Black	81
Hispanic	0
Asian	0
Other	23
Native American	0

**Age**
From 65 to 74	440
From 75 to 84	290
85 and over	153
Less than 65	58

Conditions of Medicare patients treated by Dr. Ronald J. Sweren, MD in 2014

Hypertension	59
High Cholesterol	53
Stroke	3
Ischemic Heart Disease	34
Depression	14
Chronic Kidney Disease	15
Asthma	5
Osteoperosis	7
Atrial Fibrilation	11
Heart Failure	10
Chronic Obstructive Pulmonary Disease	7
Diabetes	23
Dementia	5
Cancer	12

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Ronald J. Sweren, MD treated as a dermatologist in Lutherville, MD during 2015 were skin testing, allergy testing, removal of lesion (e.g. growth) and skin procedures.

Volume of procedures performed by Dr. Ronald J. Sweren, MD for Medicare patients.

allergy testing	830
diagnostic procedures	227
doctor visit	1497
removal of lesion (e.g. growth)	536
skin procedures	536
skin testing	830

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Ronald J. Sweren, MD.

**Gender**
Male	1046
Female	934

**Ethnicity**
Non-Hispanic White	1706
Black	178
Hispanic	0
Asian	0
Other	70
Native American	0

**Age**
From 65 to 74	964
From 75 to 84	614
85 and over	276
Less than 65	126

Conditions of Medicare patients treated by Dr. Ronald J. Sweren, MD in 2015

Hypertension	61
High Cholesterol	53
Stroke	4
Ischemic Heart Disease	30
Depression	15
Chronic Kidney Disease	17
Asthma	7
Osteoperosis	7
Atrial Fibrilation	9
Heart Failure	10
Chronic Obstructive Pulmonary Disease	7
Diabetes	23
Dementia	5
Cancer	14

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Ronald J. Sweren, MD treated as a dermatologist in Lutherville, MD during 2016 were skin testing, allergy testing, removal of lesion (e.g. growth) and skin procedures.

Volume of procedures performed by Dr. Ronald J. Sweren, MD for Medicare patients.

allergy testing	926
diagnostic procedures	204
doctor visit	1644
removal of lesion (e.g. growth)	620
skin procedures	620
skin testing	926

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Ronald J. Sweren, MD.

**Gender**
Male	584
Female	524

**Ethnicity**
Non-Hispanic White	952
Black	107
Hispanic	0
Asian	0
Other	36
Native American	0

**Age**
From 65 to 74	537
From 75 to 84	344
85 and over	146
Less than 65	81

Conditions of Medicare patients treated by Dr. Ronald J. Sweren, MD in 2016

Hypertension	62
High Cholesterol	56
Stroke	3
Ischemic Heart Disease	29
Depression	18
Chronic Kidney Disease	17
Asthma	12
Osteoperosis	8
Atrial Fibrilation	10
Heart Failure	10
Chronic Obstructive Pulmonary Disease	8
Diabetes	24
Dementia	6
Cancer	13

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Ronald J. Sweren, MD treated as a dermatologist in Lutherville, MD during 2017 were removal of lesion (e.g. growth), skin procedures and diagnostic procedures.

Volume of procedures performed by Dr. Ronald J. Sweren, MD for Medicare patients.

diagnostic procedures	199
doctor visit	1639
removal of lesion (e.g. growth)	575
skin procedures	575

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Ronald J. Sweren, MD.

**Gender**
Male	586
Female	527

**Ethnicity**
Non-Hispanic White	955
Black	101
Hispanic	0
Asian	0
Other	40
Native American	0

**Age**
From 65 to 74	522
From 75 to 84	365
85 and over	143
Less than 65	83

Conditions of Medicare patients treated by Dr. Ronald J. Sweren, MD in 2017

Hypertension	60
High Cholesterol	47
Stroke	3
Ischemic Heart Disease	30
Depression	18
Chronic Kidney Disease	19
Asthma	8
Osteoperosis	10
Atrial Fibrilation	9
Heart Failure	9
Chronic Obstructive Pulmonary Disease	6
Diabetes	24
Dementia	7
Cancer	17

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Ronald J. Sweren, MD treated as a dermatologist in Lutherville, MD during 2018 were skin testing, allergy testing, removal of lesion (e.g. growth) and skin procedures.

Volume of procedures performed by Dr. Ronald J. Sweren, MD for Medicare patients.

allergy testing	639
diagnostic procedures	208
doctor visit	1632
removal of lesion (e.g. growth)	602
skin procedures	602
skin testing	639

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Ronald J. Sweren, MD.

**Gender**
Male	607
Female	513

**Ethnicity**
Non-Hispanic White	963
Black	89
Hispanic	0
Asian	0
Other	51
Native American	0

**Age**
From 65 to 74	529
From 75 to 84	373
85 and over	143
Less than 65	75

Conditions of Medicare patients treated by Dr. Ronald J. Sweren, MD in 2018

Hypertension	63
High Cholesterol	58
Stroke	4
Ischemic Heart Disease	33
Depression	21
Chronic Kidney Disease	19
Asthma	7
Osteoperosis	10
Atrial Fibrilation	11
Heart Failure	9
Chronic Obstructive Pulmonary Disease	8
Diabetes	23
Dementia	7
Cancer	16

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Ronald J. Sweren, MD treated as a dermatologist in Lutherville, MD during 2019 were removal of lesion (e.g. growth) and skin procedures.

Volume of procedures performed by Dr. Ronald J. Sweren, MD for Medicare patients.

doctor visit	1715
removal of lesion (e.g. growth)	688
skin procedures	688

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Ronald J. Sweren, MD.

**Gender**
Male	641
Female	516

**Ethnicity**
Non-Hispanic White	999
Black	89
Hispanic	0
Asian	0
Other	49
Native American	0

**Age**
From 65 to 74	565
From 75 to 84	0
85 and over	137
Less than 65	61

Conditions of Medicare patients treated by Dr. Ronald J. Sweren, MD in 2019

Hypertension	63
High Cholesterol	58
Stroke	4
Ischemic Heart Disease	32
Depression	22
Chronic Kidney Disease	21
Asthma	7
Osteoperosis	10
Atrial Fibrilation	12
Heart Failure	10
Chronic Obstructive Pulmonary Disease	8
Diabetes	23
Dementia	7
Cancer	17

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Ronald J. Sweren, MD treated as a dermatologist in Lutherville, MD during 2020 were removal of lesion (e.g. growth) and skin procedures.

Volume of procedures performed by Dr. Ronald J. Sweren, MD for Medicare patients.

doctor visit	1130
removal of lesion (e.g. growth)	378
skin procedures	378

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Ronald J. Sweren, MD.

**Gender**
Male	504
Female	391

**Ethnicity**
Non-Hispanic White	787
Black	53
Hispanic	0
Asian	0
Other	44
Native American	0

**Age**
From 65 to 74	410
From 75 to 84	332
85 and over	109
Less than 65	44

Conditions of Medicare patients treated by Dr. Ronald J. Sweren, MD in 2020

Hypertension	60
High Cholesterol	53
Stroke	3
Ischemic Heart Disease	32
Depression	18
Chronic Kidney Disease	22
Asthma	6
Osteoperosis	10
Atrial Fibrilation	11
Heart Failure	9
Chronic Obstructive Pulmonary Disease	8
Diabetes	23
Dementia	6
Cancer	18

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Ronald J. Sweren, MD treated as a dermatologist in Lutherville, MD during 2021 were removal of lesion (e.g. growth) and skin procedures.

Volume of procedures performed by Dr. Ronald J. Sweren, MD for Medicare patients.

doctor visit	1483
removal of lesion (e.g. growth)	597
skin procedures	597

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Ronald J. Sweren, MD.

**Gender**
Male	585
Female	509

**Ethnicity**
Non-Hispanic White	934
Black	68
Hispanic	0
Asian	0
Other	69
Native American	0

**Age**
From 65 to 74	510
From 75 to 84	407
85 and over	121
Less than 65	56

Conditions of Medicare patients treated by Dr. Ronald J. Sweren, MD in 2021

Hypertension	59
High Cholesterol	56
Stroke	3
Ischemic Heart Disease	31
Depression	18
Chronic Kidney Disease	22
Asthma	7
Osteoperosis	11
Atrial Fibrilation	10
Heart Failure	10
Chronic Obstructive Pulmonary Disease	7
Diabetes	21
Dementia	6
Cancer	15

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Ronald J. Sweren, MD treated as a dermatologist in Lutherville, MD during 2022 were removal of lesion (e.g. growth), skin procedures and phototherapy (light therapy).

Volume of procedures performed by Dr. Ronald J. Sweren, MD for Medicare patients.

doctor visit	1541
phototherapy (light therapy)	378
removal of lesion (e.g. growth)	607
skin procedures	607

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Ronald J. Sweren, MD.

**Gender**
Male	598
Female	541

**Ethnicity**
Non-Hispanic White	972
Black	64
Hispanic	13
Asian	18
Other	72
Native American	0

**Age**
From 65 to 74	494
From 75 to 84	464
85 and over	132
Less than 65	49

Conditions of Medicare patients treated by Dr. Ronald J. Sweren, MD in 2022

Hypertension	71
High Cholesterol	75
Stroke	6
Ischemic Heart Disease	25
Depression	15
Chronic Kidney Disease	15
Asthma	9
Osteoperosis	16
Atrial Fibrilation	17
Heart Failure	9
Chronic Obstructive Pulmonary Disease	9
Diabetes	22
Dementia	4
Cancer	23

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Ronald J. Sweren, MD treated as a dermatologist in Lutherville, MD during 2023 were removal of lesion (e.g. growth), skin procedures and phototherapy (light therapy).

Volume of procedures performed by Dr. Ronald J. Sweren, MD for Medicare patients.

doctor visit	1479
phototherapy (light therapy)	242
removal of lesion (e.g. growth)	538
skin procedures	538

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Ronald J. Sweren, MD.

**Gender**
Male	570
Female	512

**Ethnicity**
Non-Hispanic White	914
Black	66
Hispanic	0
Asian	0
Other	72
Native American	0

**Age**
From 65 to 74	462
From 75 to 84	434
85 and over	134
Less than 65	52

Conditions of Medicare patients treated by Dr. Ronald J. Sweren, MD in 2023

Hypertension	69
High Cholesterol	75
Stroke	6
Ischemic Heart Disease	25
Depression	15
Chronic Kidney Disease	15
Asthma	10
Osteoperosis	18
Atrial Fibrilation	15
Heart Failure	10
Chronic Obstructive Pulmonary Disease	10
Diabetes	18
Dementia	4
Cancer	22

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. Ronald J. Sweren, MD treated as a dermatologist in Lutherville, MD during 2024 were phototherapy (light therapy), removal of lesion (e.g. growth) and skin procedures.

Volume of procedures performed by Dr. Ronald J. Sweren, MD for Medicare patients.

doctor visit	1462
phototherapy (light therapy)	778
removal of lesion (e.g. growth)	502
skin procedures	502

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Ronald J. Sweren, MD.

**Gender**
Male	599
Female	537

**Ethnicity**
Non-Hispanic White	957
Black	77
Hispanic	15
Asian	19
Other	68
Native American	0

**Age**
From 65 to 74	482
From 75 to 84	462
85 and over	136
Less than 65	56

Conditions of Medicare patients treated by Dr. Ronald J. Sweren, MD in 2024

Hypertension	68
High Cholesterol	75
Stroke	6
Ischemic Heart Disease	28
Depression	18
Chronic Kidney Disease	16
Asthma	10
Osteoperosis	17
Atrial Fibrilation	15
Heart Failure	9
Chronic Obstructive Pulmonary Disease	10
Diabetes	21
Dementia	4
Cancer	22

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. Ronald J. Sweren, MD for Medicare patients.

The highest averages for the top procedures that Dr. Ronald J. Sweren, MD treated as a dermatologist in Lutherville, MD were skin testing, allergy testing, removal of lesion (e.g. growth) and skin procedures.

allergy testing	798
apheresis	76
diagnostic procedures	196
doctor visit	1472
phototherapy (light therapy)	368
removal of lesion (e.g. growth)	537
skin procedures	537
skin testing	798

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Ronald J. Sweren, MD.

**Gender**
Female	489
Male	559

**Ethnicity**
Black / African American	80
Asian / Pacific Islander	2
Non-Hispanic White	901
Hispanic	2
Native American / Alaskan Native	0
Other	47

**Age**
85 and over	136
75 to 84	335
Less than 65	60
65 to 74	486

Average of Total of Conditions of Medicare patients treated by Dr. Ronald J. Sweren, MD From 2012 - 2024

The highest averages of the most common conditions of Medicare patients that Dr. Ronald J. Sweren, MD treated were hypertension, high cholesterol, ischemic heart disease and diabetes.

Hypertension	58
High Cholesterol	54
Stroke	3
Ischemic Heart Disease	28
Depression	15
Chronic Kidney Disease	16
Asthma	7
Osteoporosis	10
Heart Failure	8
Chronic Obstructive Pulmonary Disease	7
Diabetes	20
Atrial Fibrillation	10
Dementia	5
Cancer	15

Education & Training

Dr. Ronald J. Sweren, MD graduated from University of Maryland School of Medicine in 1976. He completed residency at University of Maryland Medical Center. He is certified by the American Board of Dermatology - Dermatology, American Board of Pediatrics - Pediatrics and has a state license in Maryland.

Medical School: University of Maryland School of Medicine (1976)

Residency: University of Maryland Medical Center (1978)

Board Certification: American Board of Dermatology - Dermatology, American Board of Pediatrics - Pediatrics (1982)

Licensed In: Maryland

Ratings & Reviews

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General Payments

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

**Payments by Company**
AbbVie, Inc.	$117 Humira $39	$78
SANOFI-AVENTIS U.S. LLC	$100 DUPIXENT $100

**Types of Payments**
Education	$217

Biography

Dr. Ronald Sweren is an assistant professor of dermatology at the Johns Hopkins University School of Medicine. His areas of clinical expertise include cutaneous lymphoma/mycosis fungoides, phototherapy/ photopheresis and melanoma. Dr. Sweren also serves as director of the Phototherapy/Photopheresis Program in the Department of Dermatology.Dr. Sweren earned his M.D. from the University of Maryland School of Medicine. He completed his residency in dermatology at University of Maryland Medical Center and in pediatrics at Sinai Hospital of Baltimore.

Select Year:

Dr. Ronald J. Sweren, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Ronald J. Sweren, MD in 2024

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. Ronald J. Sweren, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Ronald J. Sweren, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Ronald J. Sweren, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Ronald J. Sweren, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Ronald J. Sweren, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Ronald J. Sweren, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Ronald J. Sweren, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Ronald J. Sweren, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Ronald J. Sweren, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Ronald J. Sweren, MD in 2022

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

2023 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Ronald J. Sweren, MD in 2023

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

2024 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Ronald J. Sweren, MD in 2024

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Average Medicare Patient Data From 2012 - 2024

Average of Total of Conditions of Medicare patients treated by Dr. Ronald J. Sweren, MD From 2012 - 2024

Education & Training

Ratings & Reviews

General Payments

Biography