
Ronald Sweren, MD
Dermatology
Highlights
Johns Hopkins Affiliations:
- Johns Hopkins School of Medicine Faculty
About Ronald Sweren
Professional Titles
- Director, Phototherapy/Photopheresis Program, Department of Dermatology
Primary Academic Title
Assistant Professor of Dermatology
Background
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.
Locations
- Johns Hopkins Health Care & Surgery Center - Green Spring Station, Lutherville
- 10755 Falls Road, Pavilion I STE 350, Lutherville, MD 21093
- phone: 410-955-5933
- fax: 410-367-2763
Expertise
Education
University of Maryland Medical Center
Residency, Dermatology, 1982Sinai Hospital
Residency, Pediatrics, 1979University of Maryland School of Medicine
Medical Education, MD, 1976Board Certifications
Dermatology
American Board of Dermatology, 1982Pediatrics
American Board of Pediatrics, 1981Insurance
- Aetna
- CareFirst
- Cigna
- First Health
- Geisinger Health Plan
- HealthSmart/Accel
- Humana
- Johns Hopkins Health Plans
- MultiPlan
- Pennsylvania's Preferred Health Networks (PPHN)
- Point Comfort Underwriters
- Private Healthcare Systems (PHCS)
- UnitedHealthcare
- Veteran Affairs Community Care Network (Optum-VACCN)
Ratings & Reviews
4.9 out of 5
530 ratings, 178 reviewsThe Patient Rating score is an average of all responses to physician related questions on the national CG-CAHPS Medical Practice patient experience survey through Press Ganey. Responses are measured on a scale of 1 to 5, with 5 being the best score. Comments are also gathered from our CG-CAHPS Medical Practice Survey through Press Ganey and displayed in their entirety. Patients are de-identified for confidentiality and patient privacy.
- 5 out of 5 starsReviewed on 2/20/2025
Usual thorough body scan exam
- 5 out of 5 starsReviewed on 2/19/2025
He was very knowledgeable, personable, and professional.
- 5 out of 5 starsReviewed on 2/18/2025
Dr Sweren is an excellent doctor and is helpful.
- 5 out of 5 starsReviewed on 2/17/2025
Kind, clear, easy to talk to
- 5 out of 5 starsReviewed on 2/13/2025
Good
- 5 out of 5 starsReviewed on 2/13/2025
Provider great concern and ease of talking to
- 5 out of 5 starsReviewed on 2/12/2025
Dr. Sweren is the best - personable, intelligent, excellent bedside manner, helpful, calming, reassuring, and takes the time to ask questions about the patient; he does not rush you out.
- 5 out of 5 starsReviewed on 2/12/2025
My wife and I have been Dr. Sweren's patients since about a decade before he joined Johns Hopkins and he has always been excellent.
- 5 out of 5 starsReviewed on 2/12/2025
The resident (female) - sorry - missed her name, was very attentive and patient. I felt she will be a great doctor, as well, one day.She acknowledged, was engaged and showed respect.
- 5 out of 5 starsReviewed on 2/11/2025
Dr. Sweren took his time and listened, as well. He is professional and personable.
- 5 out of 5 starsReviewed on 2/6/2025
Dr. Sweren has always advocated for me. I stand by that.
- 5 out of 5 starsReviewed on 2/6/2025
Dr.Sweren is a wonderful doctor.
- 5 out of 5 starsReviewed on 2/6/2025
Very personable and knowledgeable. Made me feel comfortable
- 5 out of 5 starsReviewed on 2/5/2025
Always a thoughtful and knowledgeable provider with a very pleasant patient manner.
- 5 out of 5 starsReviewed on 2/5/2025
VERY CONSCIENTIUOS
- 5 out of 5 starsReviewed on 2/4/2025
They did a very good job explaining everything and helping me understand the medication. I was even provided samples of the medication.
- 5 out of 5 starsReviewed on 2/4/2025
Dr. Sweren always treats me in a way that makes me glad that I drive so far to see him.
- 5 out of 5 starsReviewed on 2/4/2025
Professional, willingness to listen to my questions and respond accordingly.
- 5 out of 5 starsReviewed on 1/28/2025
Excellent care.
- 5 out of 5 starsReviewed on 1/28/2025
Dr Sweren was terrific: present, personable, and very professional.
- 5 out of 5 starsReviewed on 1/27/2025
Great
- 5 out of 5 starsReviewed on 1/24/2025
Dr. Sweren is great
- 5 out of 5 starsReviewed on 1/21/2025
Great visit
- 5 out of 5 starsReviewed on 1/17/2025
Welcoming, thorough, professional, reassuring.
- 5 out of 5 starsReviewed on 1/16/2025
Dr Sweren and his assistants were all wonderful
- 5 out of 5 starsReviewed on 1/16/2025
Dr. Sweren is a caring and considerate doctor that always takes time with me and thoroughly examines me.
- 5 out of 5 starsReviewed on 1/14/2025
Answered all of my questions and was very courteous. I highly recommend.
- 5 out of 5 starsReviewed on 1/14/2025
Dr Ronald Sweren is an excellent physician. He has a positive attitude and cares about my health.
- 5 out of 5 starsReviewed on 1/14/2025
ZIt's always a pleasure to visit Dr. Sweren.
- 5 out of 5 starsReviewed on 1/13/2025
I've been using Dr. Sweren for over 30 years. He saved my life by identifying an early skin cancer.
- 5 out of 5 starsReviewed on 1/13/2025
Good visit and appropriate testing ordered
- 5 out of 5 starsReviewed on 1/13/2025
Dr. Sweren is the best. He is very profession, caring and courteous. He has an outstanding knowledge of the dermatology medical profession.
- 5 out of 5 starsReviewed on 1/7/2025
Great
- 5 out of 5 starsReviewed on 1/7/2025
Dr. Ronald Sweren is very professional and informative. Excellent physician.
- 5 out of 5 starsReviewed on 1/2/2025
Dr. Sweren is extremely knowledgeable and personable. He answers questions, makes recommendations/suggestions and genuinely seems to care about my well-being.
- 5 out of 5 starsReviewed on 1/2/2025
He is friendly and educated.
- 5 out of 5 starsReviewed on 1/2/2025
Dr. Ronald Sweren is an excellent provider, very friendly, professional, knowledgeable, caring, and educates me on everything.
- 5 out of 5 starsReviewed on 12/19/2024
Dr. Sweren is an outstanding clinician. He is extremely knowledgeable, friendly, and compassionate.
- 5 out of 5 starsReviewed on 12/19/2024
Thorough, addressed my concerns, personable
- 5 out of 5 starsReviewed on 12/17/2024
It is nice to have a dermatologist who knows your case, and I love that he brings in a dermatology fellow to teach and interact with me.
- 5 out of 5 starsReviewed on 12/17/2024
He's a great and caring dr.
- 5 out of 5 starsReviewed on 12/16/2024
Excellent
- 4 out of 5 starsReviewed on 12/16/2024
I have been seeing Dr. Sweren for years. He is excellent and exceptional about what he does.
- 5 out of 5 starsReviewed on 12/5/2024
Professional
- 5 out of 5 starsReviewed on 12/5/2024
Great doctor
- 5 out of 5 starsReviewed on 11/27/2024
Very good and personal
- 5 out of 5 starsReviewed on 11/26/2024
Excellent communication
- 5 out of 5 starsReviewed on 11/22/2024
Been a patient of Dr.Sweren for a long time and have confidence in his care for my skin health.
- 5 out of 5 starsReviewed on 11/21/2024
EXCELLENT!!!
- 5 out of 5 starsReviewed on 11/19/2024
Excellent dermatologist.
- 5 out of 5 starsReviewed on 11/18/2024
Very personable, likeable and professional.
- 5 out of 5 starsReviewed on 11/15/2024
Always a pleasure to be seen by Dr. Sweren
- 5 out of 5 starsReviewed on 11/14/2024
He is great.
- 5 out of 5 starsReviewed on 11/14/2024
Dr. Sweren listened to my explanation and prescribed a renewal of an existing prescription.
- 5 out of 5 starsReviewed on 11/13/2024
Very thorough. Very organized. Very friendly
- 5 out of 5 starsReviewed on 11/12/2024
I visit Dr. Sweren yearly for full body check. My nephew passed away from melanoma last year, and my sister is being treated for stage 3 melanoma. Therefore, I'm being proactive with regular skin checks.
- 5 out of 5 starsReviewed on 11/12/2024
I have Ben seeing Dr Sweren twice a year for 20 years.He is very professional, considerate and just a great guy.
- 5 out of 5 starsReviewed on 11/11/2024
Great to deal w/and very precise
- 5 out of 5 starsReviewed on 11/11/2024
Always a good visit.
- 5 out of 5 starsReviewed on 11/11/2024
Dr Sweren is the best
- 5 out of 5 starsReviewed on 11/6/2024
Warm and concerned
- 5 out of 5 starsReviewed on 11/6/2024
Excellent
- 5 out of 5 starsReviewed on 11/6/2024
Dr. Sweren is easy to talk to. He provides me with the different choices of treatment for my acne concerns and allows me to make that decision.
- 5 out of 5 starsReviewed on 11/5/2024
Very friendly and helpful
- 5 out of 5 starsReviewed on 11/5/2024
Dr Sweren and the fellow were both kind and caring. And thoroughly described their actions throughout the exam and biopsy.
- 5 out of 5 starsReviewed on 11/4/2024
Very professional
- 5 out of 5 starsReviewed on 11/4/2024
The provider was excellent and so was the "resident" who examined me initially.
- 5 out of 5 starsReviewed on 10/29/2024
Excellent. We drive from Silver Spring just to see him!!!!!!!
- 5 out of 5 starsReviewed on 10/29/2024
He was pleasant and conversational. He explained the details of the procedure and how it accomplished what needed to be done.
- 5 out of 5 starsReviewed on 10/29/2024
We have known this provider for decades and trust him implicitly. We have met his resident on a couple of occasions and have been very impressed
- 5 out of 5 starsReviewed on 10/28/2024
Great care giver. Very thorough. Excellent experience as usual
- 5 out of 5 starsReviewed on 10/23/2024
He is a very kind and caring about my condition. Try's to help anyway possible with getting medication.
- 5 out of 5 starsReviewed on 10/22/2024
Easy the speak with. Took care of my problems
- 5 out of 5 starsReviewed on 10/21/2024
Dr. Sweren is wonderful
- 5 out of 5 starsReviewed on 10/21/2024
Excellent physician and dermatologist.
- 5 out of 5 starsReviewed on 10/17/2024
Superb clinician and professional
- 5 out of 5 starsReviewed on 10/15/2024
Very pleased!
- 5 out of 5 starsReviewed on 10/15/2024
A highly profesional and thorough examination.
- 5 out of 5 starsReviewed on 10/14/2024
Very friendly, knowledgeable & professional in greeting, assessing & treating issue.
- 5 out of 5 starsReviewed on 10/14/2024
Dr.Sweren is one f the finest physicians I've know and allowed him take care of me for over the last 35 years. Ronnie has an outstanding personality and phenomenal bed side manner
- 5 out of 5 starsReviewed on 10/14/2024
He is the best, caring doctor
- 5 out of 5 starsReviewed on 10/8/2024
National tressure
- 5 out of 5 starsReviewed on 10/8/2024
Everything was perfect.
- 5 out of 5 starsReviewed on 10/1/2024
Dr Sweren is the best! I hope he never retires!!! He is extremely pleasant and his expertise is greatly appreciated. He answered all my questions and I felt he acknowledged all my concerns with extreme kindness. Thank you!
- 5 out of 5 starsReviewed on 10/1/2024
Respectful and warm.
- 5 out of 5 starsReviewed on 9/30/2024
Dr. Sweren has a wonderfully kind and professional demeanor. He listened to my questions and his answers were clear and useful.
- 5 out of 5 starsReviewed on 9/26/2024
Dr. Sweren is an outstanding doctor. I have been going to Dr. Sweren for many years. He is extremely knowledgeable, takes his time, listens to all I have to say, answers all of my questions. He is exactly the kind of doctor everyone wants!!!
- 5 out of 5 starsReviewed on 9/25/2024
Dr Sweren is friendly. Knowledgeable very capable and professional
- 5 out of 5 starsReviewed on 9/23/2024
We come from South Carolina to see Dr Sweren. When he retires we will go to a doctor near us. 1100 miles round trip
- 5 out of 5 starsReviewed on 9/23/2024
I love him
- 5 out of 5 starsReviewed on 9/19/2024
Dr Sweren always is very thorough in His exams
- 5 out of 5 starsReviewed on 9/17/2024
Very kind and caring.
- 5 out of 5 starsReviewed on 9/16/2024
I have been going to this provider for a number of years. The doctor is very attuned to my needs and provided a great service
- 5 out of 5 starsReviewed on 9/16/2024
Good visit
- 5 out of 5 starsReviewed on 9/12/2024
Dr Sweren and his team are professional, more than competent and have vast amounts of knowledge and experience. Dr Sweren, in particular, maintains a friendly and relatable demeanor. He is exactly the kind of Dr that everyone wants to have. I appreciate him.
- 5 out of 5 starsReviewed on 9/12/2024
Good
- 5 out of 5 starsReviewed on 9/10/2024
This is the only provider I have ever considered using
- 5 out of 5 starsReviewed on 9/10/2024
Dr Sweren is excellent
- 5 out of 5 starsReviewed on 9/10/2024
Fantastic care and service
- 5 out of 5 starsReviewed on 9/10/2024
Whole team was super nice and attentive. Very focused on me during the visit.
- 5 out of 5 starsReviewed on 9/9/2024
Friendly, courteous, respectful, thorough, understanding, helpful. I completely trust him.
- 5 out of 5 starsReviewed on 9/9/2024
Dr. Sweren is the best.
- 5 out of 5 starsReviewed on 9/5/2024
Perfect visit
- 5 out of 5 starsReviewed on 9/3/2024
He has always been a friendly and knowledgeable dermatologist and his residents have also extended the same type of professionalism!
- 5 out of 5 starsReviewed on 9/3/2024
Very professional and knowledgeable
- 5 out of 5 starsReviewed on 9/3/2024
I had two doctors look at me and both were excellent. Dr. Sweren at 75 is extremely sharp and on his game provided training to his 40 year old prot?g?.
- 5 out of 5 starsReviewed on 8/28/2024
Outstanding
- 5 out of 5 starsReviewed on 8/28/2024
Both the provider and the intern were very nice, informative and amusing. I will go back to Dr. Sweren for all my dermo needs.
- 5 out of 5 starsReviewed on 8/27/2024
Dr Sweren inspired my trust right away and pu my skin issues into perspective.
- 5 out of 5 starsReviewed on 8/26/2024
Knowledgable, amiable, and willing to spend time answering questions
- 5 out of 5 starsReviewed on 8/26/2024
Very knowledgeable and pleasant
- 5 out of 5 starsReviewed on 8/20/2024
Dr. Sweren was nice and friendly.
- 5 out of 5 starsReviewed on 8/19/2024
Dr Sweren was very pleasant and listened to all of my comments and questions. He answered them in a way I could easily understand him. I would also like to compliment Dr [ ] , the resident that did my initial exam. She was very friendly and compassionate. She did a very thorough exam then had Dr Sweren her supervisor come in and exam me as well.
- 5 out of 5 starsReviewed on 8/19/2024
Excellent
- 5 out of 5 starsReviewed on 8/15/2024
I feel forward to be at John's Hopkins and with Dr. Sweren
- 5 out of 5 starsReviewed on 8/15/2024
Dr Sweren always takes his time when checking me out. He has been my Doctor for twenty years. He is the best.
- 5 out of 5 starsReviewed on 8/13/2024
Always professional and thorough.
- 5 out of 5 starsReviewed on 8/8/2024
Excellent
- 5 out of 5 starsReviewed on 8/7/2024
Have never had anything but an excellent experience in many years of visits
- 5 out of 5 starsReviewed on 8/5/2024
He is a good provider, he explains well about issue.
- 5 out of 5 starsReviewed on 8/5/2024
Like how he has a intern come in the room with him
- 5 out of 5 starsReviewed on 8/1/2024
First time visit with Dr. Sweren...very pleased.
- 5 out of 5 starsReviewed on 8/1/2024
My doctor is very attending and very good. Very good.
- 5 out of 5 starsReviewed on 7/29/2024
Very nice, knowledgeable, and personable
- 5 out of 5 starsReviewed on 7/25/2024
Great visit .
- 5 out of 5 starsReviewed on 7/23/2024
Excellent care
- 5 out of 5 starsReviewed on 7/23/2024
Excellent
- 5 out of 5 starsReviewed on 7/22/2024
Friendly, helpful, professional
- 5 out of 5 starsReviewed on 7/18/2024
Dr. Sweren is a kind and compassionate physician.
- 5 out of 5 starsReviewed on 7/18/2024
Very knowledgeable and helpful.
- 5 out of 5 starsReviewed on 7/16/2024
Always a positive experience with Dr. Sweren.
- 5 out of 5 starsReviewed on 7/16/2024
Excellent provider. Wonderful bedside manner and knowledge is always beyond expected.
- 5 out of 5 starsReviewed on 7/11/2024
It's always a pleasure to visit Dr. Sweren.
- 5 out of 5 starsReviewed on 7/9/2024
Good
- 5 out of 5 starsReviewed on 7/8/2024
Very positive with treatment and directions. I felt comfortable that Doc's apprentice was involved in my treatment that included a biopsy.
- 5 out of 5 starsReviewed on 7/8/2024
I have been using Dr Sweren for over 35 years. I think that explains everything!!!
- 5 out of 5 starsReviewed on 6/26/2024
I was 20 minutes late due to traffic coming from Rehoboth Beach, DE and the office was still able to check me in. Thank you for the flexibility.
- 5 out of 5 starsReviewed on 6/25/2024
The best dermatologist at Johns Hopkins.
- 5 out of 5 starsReviewed on 6/20/2024
Really a great dr who has been nothing but the best
- 5 out of 5 starsReviewed on 6/13/2024
The best.
- 5 out of 5 starsReviewed on 6/11/2024
I have dealt with Dr. Sweren since the 90's, great doctor, really enjoy him
- 5 out of 5 starsReviewed on 6/10/2024
Very professional and knowledgeable. He made me feel relaxed during my check-up. His intern did the same.
- 5 out of 5 starsReviewed on 6/4/2024
I have been treated by Dr. Sweren for many years. He is a very nice man and easy to talk to. His examinations are thorough, and he has found a number of skin cancers on me over the years. All were successfully removed by dermatology surgeons.
- 5 out of 5 starsReviewed on 5/30/2024
Dr. Sweren is very knowledgeable and very caring. I always feel very confident about the care he provides.
- 5 out of 5 starsReviewed on 5/30/2024
Dr. Sweren is a wonderful professional. I received excellent care during my visit.
- 5 out of 5 starsReviewed on 5/30/2024
DrSweren is very knowledgeable about my problem and is very good about explaining
- 5 out of 5 starsReviewed on 5/30/2024
Dr. Sweren is always great
- 5 out of 5 starsReviewed on 5/28/2024
Professional, calm and eager to listen to my concerns.
- 5 out of 5 starsReviewed on 5/24/2024
Dr Sweren is the leading dermatologist in the area and I needed his valuable knowledge. He is a very kind, caring, informative dr. He listens, asks questions and makes the patient feel heard and appreciated!! A comprehensive patch test was done on my back and he explained the all tests had negative results.I am awaiting complete information relating to the results to be mailed to me. I need that for my records. Nothing was given to me to take with me at the end of my conference with Dr. Sweren.
- 5 out of 5 starsReviewed on 5/23/2024
Escellent
- 5 out of 5 starsReviewed on 5/23/2024
I have been a patient of Dr. Sweren for over ten years. He's the best!
- 5 out of 5 starsReviewed on 5/23/2024
Very good care and confidence
- 5 out of 5 starsReviewed on 5/23/2024
Dr. Sweren is great. It is very difficult to see him however.
- 5 out of 5 starsReviewed on 5/23/2024
Responsive, sensitive, comprehensive, great sense of humor
- 5 out of 5 starsReviewed on 5/21/2024
Dr. S. Definitely showed concern. Asked for help from other doctor as well to check me.
- 5 out of 5 starsReviewed on 5/21/2024
Dr. Sweren and his medical students are excellent in their knowledge and application of dermatological medicine and techniques.
- 5 out of 5 starsReviewed on 5/17/2024
Dr Sweren is the best
- 5 out of 5 starsReviewed on 5/16/2024
Excellent
- 5 out of 5 starsReviewed on 5/16/2024
We have always like to see Dr Sweren. We don't understand why we have to see two providers at one visit, why not just Dr Sweren? The PA are much less natural in their manner.
- 5 out of 5 starsReviewed on 5/14/2024
Dr. Sweren is The Best!
- 5 out of 5 starsReviewed on 5/13/2024
Dr. Sweren is the best living dermatologist
- 5 out of 5 starsReviewed on 5/9/2024
Great visit. Just an excellent doctor.
- 5 out of 5 starsReviewed on 5/9/2024
Evaluation applies both to Dr. Sweren and Dr. [ ].
- 5 out of 5 starsReviewed on 5/7/2024
Great experience w Dr Sweren and his resident
- 5 out of 5 starsReviewed on 5/2/2024
Lov? Dr Sweren
- 5 out of 5 starsReviewed on 4/30/2024
Always vey helpful and knowledgeable.
- 5 out of 5 starsReviewed on 4/29/2024
EXCELLENT!!!!!
- 5 out of 5 starsReviewed on 4/29/2024
Best Dermatologist in Maryland
- 5 out of 5 starsReviewed on 4/29/2024
Diligent concerned with the patient
- 5 out of 5 starsReviewed on 4/11/2024
He eas warm & caring & thorough
- 5 out of 5 starsReviewed on 4/11/2024
Knowledgeable, professional, courteous
- 5 out of 5 starsReviewed on 4/11/2024
I've been going there a very long time and I've never had any bad experiences.
- 5 out of 5 starsReviewed on 4/9/2024
I would refer my provider to someone another person.
- 5 out of 5 starsReviewed on 4/3/2024
Excellent care.
- 5 out of 5 starsReviewed on 4/2/2024
Over the last 13 years, Dr. Sweren's care has transformed my life very much for the better.
- 5 out of 5 starsReviewed on 4/2/2024
Dr. Sweren was extremely helpful and compassionate.
- 5 out of 5 starsReviewed on 3/27/2024
I have received dermatology care from Dr. Sweren for many years, and he is truly a gem. He is quick and efficient during his appointments while truly listening and responding to my reports/concerns. Dr. Sweren always has a kind and positive demeanor, and does an excellent job of ensuring that I understand his approach to care. More doctors should provide care like Dr. Sweren does.