
Umar R. Ahmad, DO
Endocrinology
Highlights
Age Groups Seen
- Adult 18-65
- Older Adult >65
Languages
- English
Gender
MaleHospital Affiliations
- Nuvance Health - Danbury Hospital
About Umar R. Ahmad
Professional Statement
Dr. Ahmad is a board-certified endocrinologist who completed his internal medicine residency training at the University of Pittsburgh – Mercy Hospital, followed by endocrinology fellowship training at Lahey Hospital and Medical Center. He has been practicing since 2018 and sees a wide variety of patients as a general endocrinologist but with a particular interest in the management of diabetes mellitus, thyroid and parathyroid dysfunction, thyroid cancer, as well as transgender care.
Get To Know Me
Why should someone choose you to care for their health?
I am a compassionate physician. I provide the best care for my patients. This includes offering patients a simple, honest, yet comprehensive analysis of their health conditions along with a collaborative approach to their treatment in an empowering manner.
What is the most important thing your patients should expect from their professional relationship with you? What do you expect from them?
Patients should expect unrushed, individualized care that is informed by evidence-based medicine. They should also expect prompt, courteous and professional service while in the clinic, both from myself as well as my support staff. I expect patients to be timely and respectful. I do not appreciate patients who expect to unilaterally dictate their care, especially when it goes against best practice.
How do you spend your personal time when you're not caring for patients?
When not practicing medicine, I enjoy running, skiing, traveling and spending time with my family.
Why did you choose your specialty and what is its greatest reward?
Endocrinology is a cerebral field that challenges practitioners to combine aspects of biochemistry, cell biology and genetics directly into patient care. With advances in our understanding of human metabolism sure to come in the next few decades, I am excited about the next era of endocrine practice.
Expertise
Education
- Fellowship: Lahey Hospital & Medical Center, Internal Medicine, Endocrinology, Diabetes & Metab, 2018
- Residency: University of Pittsburgh Medical Center, Internal Medicine, 2016
- Internship: University of Pittsburgh Medical Center, Internal Medicine, 2014
- Medical School: New York Institute Of Technology School Of Health Professions, 2013
Board Certifications
- Internal Medicine: American Osteopathic Board of Internal Medicine
Locations
- Nuvance Health Medical Practice - Endocrinology Danbury
- 25 Germantown Road, Danbury, CT 06810
- Get Directions
- phone: 203-794-5620
- 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 Ridgefield
- 21 South Street, Ridgefield, CT 06877
- Get Directions
- phone: 203-794-5620
- Nuvance Health Medical Practice - Endocrinology Southbury
- 22 Old Waterbury Road, Southbury, CT 06488
- Get Directions
- phone: 203-794-5620
Insurance
- Aetna
- Anthem BlueCross Blue Shield Connecticut
- Centivo
- Cigna
- ConnectiCare
- Consumer Health Network
- Coventry-Aetna
- Humana Military
- MagnaCare
- 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
4.9 out of 5
332 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 12/11/2025
Dr Ahmad listens and hears me. We discussed my health overall and a specific condition in depth. His questions were insightful and his explanations clear snd precise. I appreciate his humane attitude toward my problem. How fortunate I am to have such an exceptional doctor.
- 5 out of 5 starsReviewed on 12/9/2025
Excellent communication skills, organized, thorough and goes over each issue and sums up next steps at end of visit
- 5 out of 5 starsReviewed on 12/5/2025
Dr. Ahmad is a wonderful physician. He is beyond helpful, professional and compassionate. I’m thrilled to be his patient.
- 5 out of 5 starsReviewed on 7/29/2025
Very understanding provider. Makes you feel very comfortable. Also very thorough. I would highly recommend Dr. Ahmad.
- 5 out of 5 starsReviewed on 7/10/2025
He is very attentive, and when I needed him to call back because of a problem he did so quickly.
- 5 out of 5 starsReviewed on 7/2/2025
Very good patient relations, knowledgeable and easy to understand.
- 5 out of 5 starsReviewed on 6/25/2025
He is always personable and lets me ask questions.
- 5 out of 5 starsReviewed on 6/12/2025
Explained in detail my medical condition in a way that was understandable.
- 5 out of 5 starsReviewed on 6/2/2025
Dr. Ahmad is knowledgeable and takes time to answer questions. He explains why he is recommending a certain test or treatment in an understandable manner.
- 5 out of 5 starsReviewed on 3/31/2025
Dr Ahmad Do is a caring and wonderful Dr who explains everything and makes me feel like I couldn’t be in better hands
- 5 out of 5 starsReviewed on 3/10/2025
Always provides excellent care and is very clear to explain everything
- 5 out of 5 starsReviewed on 3/1/2025
He is very caring