
Highlights
Age Groups Seen
- Adults
Languages
- English
Gender
FemaleLocations
- Mass General Brigham Pulmonology and Sleep Medicine Clinic at Salem
- 55 Highland Avenue, Suite 104, Salem, MA 01970
- Get Directions
- Phone: 978-745-4489
- Fax: 978-741-3131
- Mass General Brigham Pulmonology Clinic at Beverly
- 900 Cummings Center, Suite 107T, Beverly, MA 01915
- Get Directions
- Phone: 978-745-4489
- Fax: 978-741-3131
Expertise
Education
- Fellowship: Rutgers The State University of New Jersey - Newark, Pulmonary/Critical Care, 2022
- Residency: Christiana Care Health System, Medicine/Pediatrics, 2019
- Medical Education: Nova Southeastern University of Osteopathic Medicine, Osteopathic Medicine, 2015
Board Certifications
- Critical Care Medicine: American Board of Internal Medicine, 2022
- Pulmonary Disease: American Board of Internal Medicine, 2021
- Internal Medicine: American Board of Internal Medicine, 2019
Insurance
- Aetna
- Beech Street
- Blue Cross Blue Shield
- Blue Cross Blue Shield Medicare
- Cigna
- Commonwealth Care Alliance
- Coventry
- Fallon Health
- Harvard Pilgrim Health Care
- Humana
- Maine Community Health Options
- Mass General Brigham Health Plan
- MassHealth
- Medicare
- Medicare ACO
- Multiplan
- Railroad Medicare
- Senior Whole Health
- TriCare
- Tufts Health Plan
- Tufts Medicare Preferred
- United Health Care
- Wellpoint
- WellSense
Ratings & Reviews
4.8 out of 5
89 ratings, 51 reviewsThe Patient Satisfaction Rating is an average of all responses to the care provider related questions shown below from our survey. Patients that are treated in outpatient or hospital environments may receive different surveys, and the volume of responses will vary by question.
- Reviewed on 7/1/2026
Dr Mertens was a new provider for me which can be daunting. Fortunately, she was wonderful, and I felt completely comfortable.
- Reviewed on 7/1/2026
She was very thorough going through my medical record and answering all my questions. She was also very friendly and easy to talk to.
- Reviewed on 7/1/2026
Dr. Mertens is extremely kind, and caring. She is knowledgeable about my condition. She explains everything and we come to a decision about my care together. She advises me about what can wait, and what we should act on immediately. I trust her implicitly with my care.
- Reviewed on 6/10/2026
Dr. Mertens was thorough and quick to call back and provide next steps for my care plan. She was able to set my mind at ease which is truly appreciated.
- Reviewed on 6/5/2026
I just want to say Dr. Mertens and [redacted], they took care of me very well over the couple of years that I've been dealing with them. Thank you.
- Reviewed on 6/4/2026
The entire staff was kind, courteous and professional.
- Reviewed on 6/3/2026
The care provider was attentive, well-informed and very helpful. We discussed test results, possible treatments and possible followup action. I felt that the appointment was excellent.
- Reviewed on 6/5/2026
She was wonderful and it was my first visit and I am waiting to have follow-up appointments and also some testing done. So I'll know more better, you know, after I have some test results done. But I'm very happy with her because my previous experience was not good and I just felt that she really paid attention and she was really interested in my case. [redacted]
- Reviewed on 6/4/2026
Dr. Mertens was wonderful! I saw her for the first time, she was very comforting, kind, and knowledgeable!
- Reviewed on 5/28/2026
Very good.
- Reviewed on 5/28/2026
Excellent staff and Doctor.
- Reviewed on 5/25/2026
Very pleasant experience!
- Reviewed on 4/21/2026
She is extremely concerned and very professional
- Reviewed on 4/21/2026
Dr. Mertens was understanding, knowledgeable and thorough in her treatment of my condition. I thought she was great.
- Reviewed on 4/16/2026
This is my first visit with this provider who happened to be very very nice. Listen to all my concerns and explained a lot of things about my medication. I'm very happy I would see her again and the nurse was excellent also
- Reviewed on 4/15/2026
so far i am getting a consistent experience
- Reviewed on 4/3/2026
Dr. Mertens is always very attentive. She is extremely knowledgeable about her craft and she has a lot of empathy and compassion and her way of doing things has changed my life and I think that even though I have a chronic illness, I know that I'm being taken care of in a proper way. She's extremely, extremely generous with her time and I appreciate not only Dr. Mertens, but her whole team. They are excellent.
- Reviewed on 4/1/2026
Dr. Mertens combines technical expertise with a pleasant candor. She listens attentively, asks relevant questions, and presents an understandable treatment action plan. Summarily, it was a great experience.
- Reviewed on 3/27/2026
Dr. Mertens is a kind and gentle presence who always listens well to my questions and concerns.
- Reviewed on 3/25/2026
Very respectful and professional. Genuinely seemed to really care about my well-being and seemed to be invested my plan of action to help mitigate my sleep apnea.
- Reviewed on 3/24/2026
Dr Mertens is always caring and attentive. I appreciate and have every confidence in the care she provides
- Reviewed on 3/20/2026
Very satisfied would highly recommend
- Reviewed on 3/19/2026
This provider is very caring and compassionate. She addresses all of my concerns at each visit in a manner which I can understand. She collaborates with my other providers when necessary. I always feel that I am getting the best care possible when I see Dr. Mertens.
- Reviewed on 3/19/2026
This was my first time seeing this doctor. She reviewed my history and confirmed conditions and current concerns. And further discussed future treatment options. She didn't seem to be rushed, a good thing for today's busy schedules.
- Reviewed on 3/19/2026
She was great.
- Reviewed on 3/17/2026
Wish she was more empathetic I have copd And it's discouraging.
- Reviewed on 3/11/2026
I was running late because I first went to the wrong building. Everyone was very nice and understanding of this
- Reviewed on 2/26/2026
Dr. Mertens is fabulous. I absolutely love her.
- Reviewed on 2/17/2026
Very professional and calm.
- Reviewed on 2/25/2026
I received excellent and professional care ! Dr Mertens was very supportive and explained in very caring way what further treatment I might need. Thank you so much.
- Reviewed on 1/21/2026
This was the first visit with Dr. Mertens. She took over for Dr. [redacted]. Very easy to talk to and listened to what I had to say. If she recommended something, I was asked if that would be okay. A good doctor.
- Reviewed on 1/21/2026
I switched providers because mine was leaving for another location. My experience with this provider was awesome.
- Reviewed on 1/8/2026
Dr. Mertens had taken a lot of time to review my situation, my case. I was seeing her as a transfer from my previous pulmonologist. She was very knowledgeable about what had gone on with me and talked to me about it and spent a good deal of time with me as a preliminary get to know a new patient. I really enjoyed the visit.
- Reviewed on 12/29/2025
Okay
- Reviewed on 12/24/2025
Very concerned, knowledgeable, and wanting to be as helpful as possible. Excellent communication.
- Reviewed on 12/11/2025
Excellent courteous service as usual I have no complaints whatsoever
- Reviewed on 12/11/2025
She was very personable and explained my options clearly and in detail.
- Reviewed on 12/8/2025
Good job. Thank you.
- Reviewed on 11/20/2025
Just thank you very much
- Reviewed on 11/5/2025
Dr Mertens is great! In every way.
- Reviewed on 10/28/2025
Excellent
- Reviewed on 10/22/2025
Listened carefully
- Reviewed on 10/20/2025
Dr Mertens is extremely compassionate and easy to talk to. She listens carefully, offering options for medications. Great clinician
- Reviewed on 10/20/2025
Dr Mertens is very knowledgeable
- Reviewed on 10/15/2025
Informative and monitoring my illness
- Reviewed on 10/13/2025
I have always had a respectful and careing experience at all Dr offices, staff and the Dr. I feel safe and cared for at MGH.
- Reviewed on 9/22/2025
She was very thorough and offered other tests to try to find a what is causing My Dx.
- Reviewed on 9/15/2025
Very positive experience
- Reviewed on 9/13/2025
As expected, very good.
- Reviewed on 9/5/2025
Dr. Mertens was very helpful and professional. Great job, thanks!!
- Reviewed on 9/6/2025
She's an incredible healthcare person, very kind, very caring, very open-minded, listens to any and all concerns that you may have.