
Highlights
Age Groups Seen
- Adult 18-65
- Older Adult >65
Languages
- Chinese - Mandarin
- English
Gender
MaleHospital Affiliations
- Nuvance Health - Norwalk Hospital
About Charles X. Ma
Professional Statement
Charles Ma, MD is a board-certified Internist who specializes in Endocrinology. Having completed his fellowship training in Bronx, NY, he understands the complexities of both medical conditions and social determinants of health especially in underserved populations. He treats his patients with respect and as individuals, working together with them as a team to determine the best management approach. As a CT native, Dr. Ma enjoys spending time with family, going on hikes and traveling abroad in his spare time.
Get To Know Me
Why should someone choose you to care for their health?
Having worked in Hartford, Springfield, and the Bronx, I am well aware of the social factors affecting health, health outcomes, and general well-being. As such, I always treat my patients following the best standards of care but also as individuals. I believe every person is unique and therefore of important value. I look forward to learning as much about my patients as I can from them.
What is the most important thing your patients should expect from their professional relationship with you? What do you expect from them?
The most important expectation of my professional relationship with my patients is to work as a team. I genuinely have the best interest of my patients at heart and I believe much can be achieved by working towards the same goals together! I expect my patients to keep an open mind to different approaches to management and to be always comfortable in raising any questions.
How do you spend your valuable personal time when you’re not caring for patients?
I enjoy traveling the world, exploring different cultures, going on road trips and participating in outdoor adventures such as hiking. I also like listening to and playing music as well as attempting new recipes/cuisines in the kitchen.
Why did you choose your specialty and what is its greatest reward?
I chose Endocrinology because it is a specialty that focuses on prevention and long-term outcomes. For me, a holistic approach that takes into account the long-term health of an individual is much more important than short-term solutions. I enjoy seeing my patients nice and healthy, working with them to adopt healthy lifestyles and to prevent future major health issues later on.
Expertise
Education
- Fellowship: Montefiore Medical Center, Internal Medicine, Endocrinology, Diabetes & Metab, 2021
- Residency: Baystate Medical Center, Internal Medicine, 2019
- Medical School: University of Connecticut School of Medicine, 2016
Board Certifications
- Endocrinology Diabetes and Metabolism: American Board of Internal Medicine
- Internal Medicine: American Board of Internal Medicine
Video
Locations
- Nuvance Health Medical Practice - Endocrinology Darien
- 36 Old Kings Highway South, Darien, CT 06820
- Get Directions
- phone: 203-852-2270
- fax: 203-899-5027
- Nuvance Health Medical Practice - Endocrinology Westport
- 333 Post Road West, Westport, CT 06880
- Get Directions
- phone: 203-852-2270
Insurance
- Aetna
- Anthem BlueCross Blue Shield Connecticut
- Centivo
- Cigna
- ConnectiCare
- Consumer Health Network
- Coventry-Aetna
- Medicaid Connecticut
- Medicare Connecticut
- Medicare Railroad
- Multiplan Inc
- Northwell Direct
- Oxford Health Plans
- Tricare Humana Military
- United Healthcare
- US Family Health Plan
- Wellcare
Ratings & Reviews
5 out of 5
299 ratings, 12 reviewsProvider star ratings are calculated using patient responses to the provider care questions in our patient experience survey. Below you can see the provider’s star rating and the number of his or her patients who have provided feedback. Ratings depicted represent those clinicians that have at least 30 completed surveys on a rolling 12 month basis.
- 5 out of 5 starsReviewed on 12/24/2025
He is always so personable in his disposition.
- 5 out of 5 starsReviewed on 12/9/2025
Dr. Ma always orders blood work ahead of time and goes over it during the appt. He is always ready to discuss concerns and appropriate correction to a problem.
- 5 out of 5 starsReviewed on 12/9/2025
Dr. Ma took so much time with me and answered all of my questions. I really appreciate his patience and thorough explanations.”
- 5 out of 5 starsReviewed on 7/31/2025
Took the time to go over the scan and answered all my questions
- 5 out of 5 starsReviewed on 7/14/2025
He is excellent, professional, and comforting. Everything you want in your physician.
- 5 out of 5 starsReviewed on 7/5/2025
He’s my favorite doctor. Great bedside manner.
- 5 out of 5 starsReviewed on 6/24/2025
Very knowledgeable. Took time to answer my questions.
- 5 out of 5 starsReviewed on 6/16/2025
He is personable, thorough, clear about my condition and how my condition is I doing.
- 5 out of 5 starsReviewed on 6/4/2025
He was super he took his time explaining everything to me. If I didn’t understand he would explain it again and he was very patient.
- 5 out of 5 starsReviewed on 3/31/2025
He listens and answers my questions. He explains well my condition.
- 5 out of 5 starsReviewed on 3/8/2025
I love his patience and knowledge that he is able to share and deliver in a concise, but thorough and down to earth way. He is very personable and easy to talk to.
- 5 out of 5 starsReviewed on 3/4/2025
Dr Ma is everything I’d want in a physician—professional, knowledgeable, clear, friendly, caring, and though efficient, he takes the time to answer my questions without seeming rushed or impatient.