Donielle F Sliwa, MD, MPH
Not currently accepting new patients
4.867485 average rating from 163 patient reviews
Specialties
Affiliation
Mass General Brigham
Provider Locations
- Dover, NH
- Portsmouth, NH
Education & Training
- Fellowship: Baystate Medical Center, Hematology and Medical Oncology, 2018
- Residency: Baystate Medical Center/Tufts University School of Medicine, Internal Medicine Residency, 2015
- Medical Education: St. George's University School of Medicine, 2012
Board Certifications
- Medical Oncology, American Board of Internal Medicine
- Internal Medicine, American Board of Internal Medicine
Languages Spoken
- English
Age Group Treated
- Adults
Patient Feedback
4.867485 average rating from 163 reviews
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As always, received the best possible care and followup. All involved were very engaged front start to finish.
2026-07-06
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I feel that Dr. Sliwa was very astute and abreast about what was going on with my condition and had reviewed it before she and I spoke. I feel that she was very professional and also gave good comments and suggestions.
2026-07-08
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Wonderful visit
2026-07-05
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This was my first visit with Dr. Sliwa. I felt at ease with her. She listened to me & my medical history. She discussed her plan to care for me. Going forward, I feel confident she can help me.
2026-06-29
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Everyone showed concern ans at the same time ,very professional.
2026-06-27
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Everyone was friendly and informative
2026-06-21
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Dr Sliwa and her staff are always caring and professional
2026-06-20
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Excellent, respectful, understanding and real. Very grateful
2026-06-20
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Dr. Sliwa is fantastic! She truly cares about me and works so hard to make sure I feel secure in our plan to help me feel better.
2026-06-19
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From the minute that we walked in, everyone was very nice and kind and helpful. The provider was very knowledgeable, very kind, very helpful, and very understanding. I liked her a lot.
2026-06-19
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I was very comfortable talking to her.
2026-06-16
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Great doctors
2026-06-16
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Dr. Sliwa is everything I hope for in a doctor but seldom find.
2026-06-13
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Dr. Sliwa was very clear about the reason for my visit and very reassuring about the small possibility of cancer. She ordered additional blood tests to determine a baseline and wanted to schedule regular blood tests to monitor my condition. Excellent visit and excellent doctor
2026-06-15
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Dr Sliwa is very easy to talk to and listen to.
2026-06-07
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I would recommend them to anyone
2026-06-07
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Dr Sliwa is very personable, very caring and very professional.
2026-06-08
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Dr. Sliwa provides the information and the care that I need.
2026-06-07
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From the receptionist on the 1st floor, then to Dr Sliwa's nurse and finally getting to see Dr Sliwa, the experience was wonderful.
2026-06-05
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Very thorough. Listened carefully. Shared her thoughts and expectation for treatment and outcomes. I look forward to working with Dr Sliwa to complete my diagnosis.
2026-05-26
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Very happy with the care, respect,and attention I get and very glad to have Doctor Slivwa as my cancer care provider
2026-05-25
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Dr Sliwa was very attentive & professional. I'm feeling very positive & confident that she will be an excellent provider!
2026-05-23
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I thought Dr. Sliwa was fantastic. This was my first visit with her. She listened and tried to problem solve with me. She gave me great information to help me weigh the factors to help me make choices. It was very easy to talk to her.
2026-05-15
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Thorough, Professional and compassionate.
2026-05-15
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In my experience, I have never met a more competent and empathetic physician as Dr. Sliwa. She has made an extraordinary difference in my journey with cancer. She is my doctor, my mentor, my partner. I am so grateful that she is in my life.
2026-05-12
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This was my first visit with this Doctor, she was very professional, no negative comments.
2026-05-11
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Well, thank you very much. Very grateful for all the personalized gentlemen and attention, the element of compassion, making you feel like a human being versus a Petri dish. [redacted] Thank you again. My family, thanks you as well. God bless.
2026-05-10
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She was just wonderful. What a sweet and professional person. I really enjoyed the visit.
2026-05-08
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Dr. Sliwa was kind, tender and attentive to my needs not my numbers. She cared how I felt. I appreciated her so much.
2026-05-03
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Donielle, was extremely knowledgeable and professional. She knew about my history and asked many detailed questions about my situation! MOST of all, she put me at ease with my overall condition of my blood clots!! I thanked and praised her very much for putting me at ease and this was a trait that does not occur often enough!!! Thank you for the opportunity to provide the aforementioned feedback! Best regards.... [redacted]
2026-05-02
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Very good
2026-04-15
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Very knowledgeable and detailed, and caring.
2026-04-16
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Dr. Sliwa was very professional yet personable and has a good sense of humor. I enjoyed interacting with her despite the reason for my visit.
2026-04-15
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Wentworth Douglas has an amazing staff .Absolutely nothing needs to be changed
2026-04-13
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I really like Dr. Sliwa and feel very comfortable with her.
2026-04-12
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Dr Sliwa is wonderful. She really cares about her patients. And she has a great sense of humor. Love my visits.
2026-04-04
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I can't say enough good things!
2026-04-05
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This was a first appointment. Dr Sliwa made me feel comfortable with my decision to request her to take over my care team.
2026-03-29
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Very attentive and listened to our input.
2026-03-18
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Excellent care in a facility that is very accessible
2026-03-18
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Smart, empathetic and kind
2026-03-15
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Care provider was helpful and explained the issues I had.
2026-03-14
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Everything was good
2026-03-14
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She's very nice. Very concerned and informative...like her alot
2026-03-14
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All good, many thanks.
2026-03-07
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It was a pleasure meeting with this doctor
2026-03-07
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Well done, excellent
2026-03-04
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was easy to talk with
2026-02-28
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Dr. Sliwa has been great!~ So attentive and so focused and so able and willing to relate to [redacted] at his level. We are very lucky to have her.
2026-02-17
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It could not be better
2026-02-13
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Very good service.
2026-02-09
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Dr. Sliwa was very helpful to me and took the time needed and she made me feel reassured, which is important as a cancer survivor. Thank you.
2026-01-29
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Positive, understanding interaction.
2026-01-28
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Dr. Sliwa was fantastic. Very smart and a very good listener. She spent as much time as need to figure out my complicated Hx and was very receptive to my input about treatment options going forward. I would rate Dr. Sliwa and A++ on every aspect.
2026-01-17
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Just love her. Have been with her for 4 years: from the beginning of chemo through today. Followed her from Newburyport to Portsmouth. Highly recommend her.
2026-01-12
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Excellent in all areas
2026-01-11
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Dr. Sliwa listened to my concerns and frustration with how I am feeling and we came up with plan that we both felt could be the plan for me.
2026-01-05
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She reviewed my records, asked pertinent questions and listened intently to my answers. Her assessment was very logical and well thought out. I was very impressed with her knowledge and interactions with me as her patient. I would rate her very high as a provider!
2025-12-23
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Dr. Sliwa always makes time to put us at ease answers all of our questions and keeps us involved. The whole family feels very comfortable with her and her staff. She has taken time to get to know us in our idiosyncrasies and we really appreciate the care we've gotten from her. We would highly recommend her to anyone and everyone.! She represents the hospital as a wonderful asset
2025-12-21
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Excellent
2025-12-21
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Dr Sliwa was very caring and compassionate. We lost our son 18 months ago, and she cares about how we are doing and listens. She knows all about my previous care and knew everything about my case without looking at notes or a computer. She is very professional but warm and approachable. I am thrilled to have her as my oncologist.
2025-12-14
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Yes, I saw Dr. Sliwa for the first time. [redacted] I can say Dr. Sliwa was just absolutely wonderful, warm and caring, and it was a very nice transition for me. I have complete faith in her. [redacted] So I appreciate the visit, and I feel completely satisfied and very safe and secure having my health issues taken care of by Dr. Sliwa. So thank you for the follow-up, [redacted]
2025-12-11
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Dr. Sliwa is an amazing oncologist and I've had a great experience going through oncology and cancer treatment with her. She's incredibly understanding and spends time and takes the time to listen to you thoroughly and is very compassionate and friendly. I can't say enough good things about her care.
2025-12-11
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Wonderful, personable, professional visit.
2025-12-08
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I'm a new patient & cancer survivor. Dr. Silwa was outstanding. I'm very comfortable with her and her judgement.
2025-12-07
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Provided excellent information and always is available for questions.
2025-12-07
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Dr Sliwa is great to work with. Very knowledgeable
2025-12-06
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Dr. Sliwa was a pleasure to work with, she is very knowledgeable and thorough , very pleased with her
2025-11-21
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It was a very informative and positive experience.
2025-11-16
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Pleasure to be seen by her.
2025-11-12
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She was thorough, kind and very approachable.
2025-11-05
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Dr. Sliwa is by far the most competent, the most communitive and the most helpful medical professional I have ever encountered.
2025-11-01
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Both the Doctor and the nurse were Super nice and they knew how I was feeling nervous and they made things so much easier to deal with.
2025-10-23
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I couldn't have asked for a better doctor or experience for me. Dr Sliwa was amazing . She explained everything so clearly . She listen to all my concerns and answered all of our questions. [redacted] I couldn't be in better hands with my treatment.
2025-10-15
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This was a new provider for me as the old one had moved away. I was apprehensive because I had become very connected with the old one. The new provider was wonderful and very easy to connect with again in the most positive way. I'm so glad she's here now.
2025-10-09
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I thought the treatment that I got was absolutely fabulous. Everybody was there to take care of me. The receptionist was delightful and pleasant and welcoming and the nurse practitioner that I saw was informative and everybody deserves a pay raise in that office. They're just phenomenal.
2025-10-08
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I thought she was thorough and very kind.
2025-09-29
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All very good
2025-09-26
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New doctor good personality makes you feel comfortable & wants to hear from you
2025-09-25
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Professional and thorough
2025-09-17
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She was excellent.
2025-09-13
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friendly and very professional
2025-09-13
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Excellent
2025-08-24
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I think Dr. Sliwa is the best doctor I have seen in a long time [redacted]. I think Wentworth Douglas has the best doctors, and they're all wonderful, and Dr. Sliwa meets that expectation as well. I actually changed providers to come to Wentworth Douglas because of her. Thank you.
2025-08-27
Accepted Insurance
- Tufts Medicare Preferred
- WellSense
- Mass General Brigham Health Plan
- Senior Whole Health
- WellCare
- Blue Cross Blue Shield ME
- Medicare
- Multiplan/PHCS
- Maine Community Health Options
- NH Healthy Families
- WellSense NH
- MassHealth
- Tufts Health Plan
- Beech Street
- Prime Health Services
- Blue Cross Blue Shield - Federal
- Humana
- Medicaid ME
- Aetna
- United Health Care
- Medicaid NH
- Wellpoint
- Blue Cross Blue Shield Medicare
- Harvard Pilgrim Health Care
- Blue Cross Blue Shield NH
- Medicare ACO
- Commonwealth Care Alliance
- Medicare - NH
- Community Health Options
- Coventry
- Blue Cross Blue Shield
- Cigna
- CorVel Workers Comp
- AmeriHealth Caritas New Hampshire
- Martin's Point
- Fallon Health
- Multiplan
- TriCare