Pediatric Staff

Our Pediatricians Serve Greenwich

Riverside, Old Greenwich and all surrounding areas...

Meet our team at Riverside Pediatrics, LLC! Please take a few moments to learn about our skilled practitioners and our friendly, nurturing staff.

At Riverside Pediatrics, LLC, we consider it both a great joy and responsibility to care for children. Most of us are parents ourselves, so we strive to be understanding and available to the families we are privileged to serve. We are honored that you have chosen us as your child's primary medical provider and are confident that you will be pleased with the quality of care and service that we can provide you and your family.

All of our nurses are highly trained and have extensive pediatric experience. All of our experienced physicians are Board Certified in Pediatrics and have been practicing pediatrics for years. Our doctors are known for providing superior, quality medical care to children throughout the area. Our primary physicians have active privileges at Greenwich and Stamford Hospitals.

Patient Testimonials

Karen Beckman, MD

Dr. Karen Beckman - Pediatrician

Dr. Karen Beckman is the founder and owner of Riverside Pediatrics, LLC. She was voted Castle Connolly Top Doctor (every year from 2013-2019) and has been selected as one of "Fairfield County's Top Doctors" by Greenwich Magazine, Stamford Magazine, Westport Magazine, Fairfield Living Magazine and New Canaan-Darien Magazine every year since 2013. She was also selected as a New York Magazine Top Doctor in 2014-2017 and 2019. She was also listed as a "Top Doctor" by the New York Times numerous times Dr. Beckman is Board Certified by the American Board of Pediatrics and is a Fellow of the American Academy of Pediatrics. She is a member of the American Academy of Pediatrics, a former member of the Stamford Hospital Credentialing committee and a former board member of the Greenwich Physicians Association. She has been a medical consultant on television news. She has given numerous educational talks at local schools and organizations and has been interviewed in the local newspapers. She is conversant in Spanish.

Dr.  Beckman grew up in Guilford, Connecticut.  She attended Hamden Hall Country Day School and then Tufts University where she received a B.S. double majoring in Psychology and Spanish and was in the National Psychology Honors Society. She then attended Tufts University School of Medicine, where she was a peer advisor.  She completed her Pediatric Residency at NYU Medical Center/Bellevue Hospital where she was chosen to be Chief Resident.  In 2000, she began a career in private practice in Stamford and New Canaan, CT. There she developed a large patient following because of her superior clinical expertise and her warm bedside manner.  She became partner at the practice during which time she provided ongoing training for and direct supervision of all new pediatricians. She left her first practice so that she could open Riverside Pediatrics in January 2006.

Dr. Beckman is very active in her local community. She is married with two sons both of whom attend school in Greenwich, where she and her family have lived since 2000.

  • Dr. Beckman has been named a Castle Connolly Top Doctor in the field of Pediatrics every from from 2013-2019. Please click on the hyperlink (below to the right) to view her Castle Connolly Profile.

Alejandro Mones, MD

Pediatrician serving the Greenwich, CT area

Riverside Pediatrics, LLC

Dr. Alejandro Mones - Pediatrician

Dr. Alejandro ("Alex") Mones is Board Certified by the American Board of Pediatrics. Dr. Mones completed his undergraduate studies at Williams College, where he obtained a B.A. in Chemistry with a concentration in Science and Technology Studies.  He attended medical school at the University of Rochester School of Medicine and Dentistry and then completed his Residency in Pediatrics at Baystate Medical Center/Tufts University School of Medicine. 

Dr. Mones grew up in Monroe, NY, where he played cello in several local orchestras, mentored peers, tutored algebra, and recorded audio books for the blind and dyslexic.  He continues to play cello in his spare time and has additional interests in photography, technology and movies.


Beth Rosenberg, MD

Pediatrician serving the Greenwich, CT area

Riverside Pediatrics, LLC

Dr. Beth Rosenberg

Dr. Beth Rosenberg is excited to join the team at Riverside Pediatrics in January 2017. Dr. Rosenberg was born and raised in sunny South Florida. She graduated from Duke University with a BS in Biology (Go Blue Devils!) and continued her education at The Johns Hopkins University School of Public Health, where she received a Masters degree in health policy. After graduate school, she worked as a health care advisor on Capitol Hill. While Dr. Rosenberg enjoyed working on health care policy, she decided to follow her passion and to become a doctor. She returned to South Florida to attend the University of Miami School of Medicine and then moved to New York City for her pediatric residency at New York-Presbyterian Hospital, Weill Cornell.

Dr. Rosenberg worked at Tribeca Pediatrics in New York City for many years prior to moving to Darien with her husband Daniel and daughter Lily. There she practiced at the Center for Advanced Pediatrics before finding her true "home" at Riverside Pediatrics.


All Riverside Pediatrics physicians are affiliated with both 
Greenwich Hospital & Stamford Hospital
For more information on our pediatricians call Riverside Pediatrics, LLC at (203) 629-5800

Contact Us

1171 East Putnam Avenue Unit 2B Riverside, CT 06878