
Highlights
Age Groups Seen
- Adults (ages 18-64)
- Geriatrics (ages 65+)
Languages
- English
Gender
MaleAbout Matthew Mathai
Dr. Matthew Mathai, MD, is a board-certified pulmonologist at Watertown Regional Medical Center’s Pulmonology Clinic, where he cares for patients with a wide range of lung and respiratory conditions. His specialties include pulmonary medicine, critical care, and sleep medicine. He has extensive experience diagnosing and managing asthma, COPD, emphysema, pneumonia, respiratory failure, sleep disorders, and other pulmonary-related diseases.
With more than 25 years of experience in the field, Dr. Mathai brings a depth of knowledge to his patients. His career has included serving as a critical care physician for NASCAR at Bristol Motor Speedway, where he provided high-level emergency and respiratory care in a fast-paced environment.
Dr. Mathai earned his medical degree from the American University of the Caribbean, completed his residency at St. Joseph Mercy Hospital in Ann Arbor, Michigan, and went on to complete a pulmonary fellowship at East Tennessee State University’s James H. Quillen College of Medicine. He performs specialized procedures including bronchoscopy and sleep studies, helping patients get comprehensive answers and advanced treatment options close to home.
Known for his compassionate and thorough approach, Dr. Mathai is dedicated to helping patients breathe easier and improve their quality of life through personalized, evidence-based care.
Outside of work, he enjoys spending time with his family, traveling, and skiing.
Locations
- 123 Hospital Drive, Suite 2009, Watertown, WI 53098
- Get Directions
- phone: 920.262.4560
- fax: 833.606.0210
Expertise
Education
- Fellowship: James H Quillen/Mountain Home VA Medical Center, Critical Care Medicine, 2003
- Fellowship: James H Quillen/Mountain Home VA Medical Center, Pulmonary Medicine, 2002
- Residency: St Joseph Mercy Hospital, 1999
- Medical School: American University of the Caribbean School of Medicine, 1996
Board Certifications
- Internal Medicine: American Board of Internal Medicine
- Critical Care Medicine: American Board of Internal Medicine, 2019
- Pulmonary Disease: American Board of Internal Medicine, 2003
Insurance
- BCBS-WI
- Independent Care Health Plan
- Medica Health Plans
- Medicaid-WI
- Quartz Health Solutions, Inc.
- The Alliance
- Tricare West
- United Healthcare
Ratings & Reviews
4.9 out of 5
118 ratings, 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.
- 5 out of 5 starsReviewed on 3/31/2026
- 5 out of 5 starsReviewed on 3/31/2026
- 5 out of 5 starsReviewed on 3/27/2026
- 5 out of 5 starsReviewed on 3/26/2026
- 5 out of 5 starsReviewed on 3/25/2026
- 5 out of 5 starsReviewed on 3/24/2026
- 5 out of 5 starsReviewed on 3/24/2026
- 5 out of 5 starsReviewed on 2/26/2026
- 5 out of 5 starsReviewed on 2/26/2026
- 5 out of 5 starsReviewed on 2/25/2026
- 5 out of 5 starsReviewed on 2/24/2026
- 5 out of 5 starsReviewed on 2/4/2026
- 5 out of 5 starsReviewed on 2/3/2026
- 5 out of 5 starsReviewed on 2/2/2026
- 4 out of 5 starsReviewed on 2/2/2026
- 5 out of 5 starsReviewed on 1/30/2026
- 5 out of 5 starsReviewed on 1/30/2026
- 5 out of 5 starsReviewed on 1/29/2026
- 5 out of 5 starsReviewed on 1/29/2026
- 5 out of 5 starsReviewed on 1/28/2026
- 5 out of 5 starsReviewed on 1/27/2026
Courteous and very personable. Explained my condition in easy to understand terms.
- 5 out of 5 starsReviewed on 1/27/2026
Dr. Mathai, MD IS EXCELLENT AND HAS HELPED ME WITH REMAINING HEALTHY. HE IS PROFESSIONAL AND CARES .
- 5 out of 5 starsReviewed on 1/27/2026
- 5 out of 5 starsReviewed on 12/12/2025
- 5 out of 5 starsReviewed on 12/12/2025
Enjoyable, sets patient at ease, positive, while also providing excellent care.
- 5 out of 5 starsReviewed on 12/10/2025
- 5 out of 5 starsReviewed on 12/10/2025
Makes visiting a doctor fun
- 5 out of 5 starsReviewed on 12/9/2025
- 5 out of 5 starsReviewed on 12/6/2025
Dr. Mathai was very gracious and helped me with pursuing cardiac concerns.
- 5 out of 5 starsReviewed on 12/5/2025
I feel so at ease with Dr. Mathsi. He goes through all reports or tests and explains all results! Tells what meds and how they help, how to use, or how to improve proprer use. He listens well and cares about all your concerns! 100% call and get in! I sleep so much better! I breathe better!
- 5 out of 5 starsReviewed on 12/4/2025
It was a pleasure!
- 5 out of 5 starsReviewed on 12/3/2025
- 5 out of 5 starsReviewed on 12/2/2025
- 5 out of 5 starsReviewed on 11/11/2025
The entire appointment with all staff was an extremely positive experience.
- 5 out of 5 starsReviewed on 11/6/2025
- 5 out of 5 starsReviewed on 11/6/2025
He has a good bedside manner. Very relaxed and friendly. Very easy to talk to. I really like him as my Pulmonary Doctor. I usually doctor with SSM but do not want to find a different pulmonary specialist when I am very pleased with Dr . Mathai.
- 5 out of 5 starsReviewed on 11/6/2025
- 5 out of 5 starsReviewed on 11/5/2025
- 5 out of 5 starsReviewed on 11/3/2025
DR Mathai is easy to talk with, I wish more Drs were like him ! I'm very proud to have him as my Dr !
- 5 out of 5 starsReviewed on 10/30/2025
The best doctor I ever had
- 5 out of 5 starsReviewed on 10/29/2025
- 5 out of 5 starsReviewed on 10/29/2025
I wish he could be my primary doctor!
- 5 out of 5 starsReviewed on 10/28/2025
- 5 out of 5 starsReviewed on 10/23/2025
Such a caring physician. So thankful!
- 5 out of 5 starsReviewed on 10/23/2025
- 5 out of 5 starsReviewed on 7/23/2025
- 5 out of 5 starsReviewed on 7/22/2025
- 5 out of 5 starsReviewed on 7/21/2025
- 5 out of 5 starsReviewed on 7/17/2025
Excellent physician. Thank you.
- 5 out of 5 starsReviewed on 7/17/2025
He's an excellent Pulmonalogist. He listened and answered all my questions and concerns.
- 5 out of 5 starsReviewed on 7/17/2025
- 5 out of 5 starsReviewed on 7/17/2025
Makes you feel relaxed and easy to talk to about any concerns
- 5 out of 5 starsReviewed on 6/24/2025
- 5 out of 5 starsReviewed on 6/23/2025
- 5 out of 5 starsReviewed on 6/20/2025
- 5 out of 5 starsReviewed on 6/18/2025
- 5 out of 5 starsReviewed on 3/20/2025
- 5 out of 5 starsReviewed on 3/9/2025
- 5 out of 5 starsReviewed on 3/6/2025
Clear explanation of medical issues and questions that I had.
- 5 out of 5 starsReviewed on 3/3/2025
- 5 out of 5 starsReviewed on 2/28/2025
So glad that I came to see and have Dr. Mathai as my provider. Wish I would have known about him sooner. EXCELLENT CARE! Ashley the nurse rocks also!!!!
- 5 out of 5 starsReviewed on 2/28/2025
Pleased with the time spent on every aspect of my life, not just my physical, but mental health and wellness for better lifestyle choices.
- 5 out of 5 starsReviewed on 2/28/2025
- 3 out of 5 starsReviewed on 2/27/2025
- 5 out of 5 starsReviewed on 2/25/2025
- 5 out of 5 starsReviewed on 2/4/2025
- 5 out of 5 starsReviewed on 2/4/2025
- 5 out of 5 starsReviewed on 2/3/2025
- 5 out of 5 starsReviewed on 2/3/2025
- 5 out of 5 starsReviewed on 1/31/2025
- 5 out of 5 starsReviewed on 1/31/2025
- 5 out of 5 starsReviewed on 1/30/2025
- 5 out of 5 starsReviewed on 1/28/2025
Dr. Mathai has helped me with my Sleep Apnea issues to improve my sleep quality and I appreciate everything Dr. Mathai has done for me since finding out I had this Issue of Sleep Apnea.I highly recommend Dr. Mathai.
- 5 out of 5 starsReviewed on 10/12/2024
I have been very pleased with the care received from Dr. Mathai. He patiently explains each diagnosis and what I need to do. I like his calm, caring and upbeat manner!
- 5 out of 5 starsReviewed on 10/10/2024
I'm always very pleased with the care I receive from Dr Mathai. He provides me with all the information I need & patiently answers my questions, all while adding humor!!
- 5 out of 5 starsReviewed on 10/9/2024
I have been under Dr. Mathai's care for over. 10 years. I appreciate his understanding and clinical excellence.
- 5 out of 5 starsReviewed on 9/17/2024
Very caring and compassionate physician
- 5 out of 5 starsReviewed on 9/13/2024
Excellent and caring personality
- 5 out of 5 starsReviewed on 9/13/2024
I am so glad that I decided to go to Dr. Mathai. Being in health care myself, he is compassionate, caring and knowledgeable in his field. I wish I would have gone to see him sooner. He is top notch professional. Watertown Medical Group is lucky to have him on staff!
- 5 out of 5 starsReviewed on 9/10/2024
Such a wonderful and charismatic person. You know ahead of time it's going to be a good experience at the appointment.
- 5 out of 5 starsReviewed on 7/22/2024
Very very happy with the Dr so happy. Put him in for a raise REALLY.
- 5 out of 5 starsReviewed on 7/17/2024
Awesome Dr, really cares about his clients ! I'm very happy to have him as my Dr !
- 5 out of 5 starsReviewed on 7/15/2024
Dr. Mathai was very friendly and personalble. Explained everything well and in a way I would understand. It seemed that he really cared and took personal interest in my care and life to lighten things up!
- 5 out of 5 starsReviewed on 7/10/2024
I was so pleased with my first appointment! Dr. Mathai gained my confidence by his attention to detail and knowledge of my needs! Thank you!
- 5 out of 5 starsReviewed on 6/24/2024
He is an amazing Doctor
- 5 out of 5 starsReviewed on 6/21/2024
This was my first appointment with Dr. Mathai and he definitely made me feel heard and comfortable to ask questions!
- 5 out of 5 starsReviewed on 6/21/2024
I am very happy with having Dr Mathia as my pulmonologist. He is extremely capable of making his patients feel at ease. I like him. Very knowledgeable and personable.
- 5 out of 5 starsReviewed on 6/20/2024
He is a great Dr.
- 5 out of 5 starsReviewed on 6/3/2024
I really appreciated the time and care Dr Mathai took with me.
- 5 out of 5 starsReviewed on 6/1/2024
A doctor, who takes the time to listen, gives very direct responses, and cares.
- 5 out of 5 starsReviewed on 5/7/2024
Dr. Mathai is a very caring doctor. He listens well and takes care to answer my questions! A very positive person!
- 5 out of 5 starsReviewed on 4/27/2024
VERY attentive--explained what is going on in terms able to understand
- 5 out of 5 starsReviewed on 4/25/2024
Thank you for being real yet having a sense of humor!! I appreciate that more than you know!! See you in July!!
- 5 out of 5 starsReviewed on 4/24/2024
Dr Mathai and his nurse are both wonderful people, cheerful and up lifting. Just being in their presence made me feel better. We need more people like these 2 in our world for sure.