Expert Personalized Care

Jonathan Blumberg, MD

Dr. Blumberg is the founder and principal of Cornerstone Medical Group. A graduate of Brown University, Dr. Blumberg received his M.D. degree from the University of Massachusetts Medical School in 1997. After graduation, Dr. Blumberg continued his training at the UMass Medical Center, where he completed his internship and residency in internal medicine.

Dr. Blumberg has practiced internal medicine in Brookline since 2000 and is affiliated with Beth Israel Deaconess Medical Center. He has had an academic appointment at the Harvard Medical School since 2000 where he is currently a clinical instructor. Dr. Blumberg lives in Lexington with his wife and two sons.

Clinical Instructor, Internal Medicine, Harvard Medical School

Internal Medicine

Experience and Education:

Clinical Practice
Pastor Medical Group, Beth Israel Deaconess Medical Center, Brookline, MA 2001-2012
Beth Israel Deaconess Medical Center, Newton Corner, MA 2000-2001
UMass Memorial Medical Center in Internal Medicine, Worcester, MA 1997-2000
Medical School
University of Massachusetts Medical School, Worcester, MA 1993-1997
Brown University, Providence, RI 1988

“I love taking care of – and caring about – my patients. I enjoy helping them stay healthy through excellent preventative care and I consider it a privilege to care for them when they’re sick. That’s why I became a doctor. My new concierge practice gives me the time I need to practice medicine the way I believe it should be done, combining the best medical science has to offer with the personal, human touch that every patient deserves.”

Our Staff

At Cornerstone Medical, we believe in treating our patients – and each other – with compassion, kindness and respect. We run a relaxed, but efficient, office where we hope you will always feel welcome and enjoy the peace of mind that comes with being well taken care of.

Jennifer Richlin – Practice Manager
Joanne Dumont – Practice Assistant
Seana Prince – Practice Assistant