Welcome to our practice!

Our office is pleased and privileged to care for your infants, children and young adults.

What started as a solo practice to serve the Noroton area over forty years ago by our founding partner, Dr. Suchenski, has grown to a group practice seeing patients from Darien and the surrounding communities.

Our four Board Certified physicians pride themselves on being an independent Pediatric group practice in one location. This setting allows us to provide comprehensive and personalized care to all of our patients from birth to young adulthood, and we are available to you both during and after office hours.

Our office is conveniently located immediately off Exit 10 on I-95.




  • Walk-in hours are for acute sick visits only.
  • Walk-in hours are not for chronic illness or prolonged visits, for the following, we ask that you schedule an appointment so that our doctors have the appropriate amount of time to address your child’s concerns:
    • Concussion
    • Mental health issues (anxiety, depression)
    • ADHD
    • Medication Checks
    • Any illness or symptoms lasting more than 1 week (stomach pain, poor appetite, concern for food allergy or intolerance, constipation, headaches/migraines, difficulty sleeping, fatigue.)
    • Vaccines
  • SATURDAYNO WALK-IN HOURS, please call Saturday morning for a sick appointment.


Teens & Young Adults

Darien Pediatric Associates offers specialized medical care for teens and young adults through Dr. Tsimoyianis’ services in Adolescent Medicine.

Adolescent Medicine is a board-certified pediatric sub-specialty centered on the care of patients from pre-teens to young adults up to age 26. It addresses the unique health and emotional needs of patients in this age group by focusing on their transitions from childhood to adulthood. Specialized care is available for patients who have complex medical problems.

Dr. Tsimoyianis (better known to patients as Dr. T) is board-certified in Adolescent Medicine and works with patients and their support systems to provide care that is tailored to each individual. Treatment ecompasses but is not limited to body image, physical development, nutrition, sexuality, mental health and substance abuse.

Dr. T is available for routine check-ups and private consultation. Late afternoon and early evening appointments can be requested. Additionally, there is a private waiting area for adolescent and young adult patients.

American Academy of Pediatrics offers useful website

In a sea of conflicting and confusing health information, our patients have always turned to us as a trusted source of advice. Now in an extension of the pediatrician’s office, The American Academy of Pediatrics (AAP) is bringing pediatrician-approved health information to the Internet with the launch of HealthyChildren.org. As the premier website for child health information HealthyChildren.org provides important resources and a host of features to enable you to quickly find the critical, relevant information you are looking for. According to the AAP, all content is developed and reviewed by leading child health experts and reflects the latest scientific research.