Meet Our Team

L. Catherine Tello, MD

Dr. L. Catherine Tello earned a BS in Biological Sciences and a BA in Psychology at the University of Maryland Baltimore County. She was awarded her medical doctorate from Drexel University College of Medicine in Philadelphia. Dr. Tello continued her training in Philadelphia, completing her Internal Medicine residency at Thomas Jefferson University. Returning to the Washington DC metro area, she completed fellowship training in Endocrinology, Diabetes, and Metabolism at George Washington University. She is a member of the Endocrine Society and the American Association of Clinical Endocrinologists. Dr. Tello grew up in Rockville, Maryland, but was born in Peru and is proudly fluent in Spanish. Dr. Tello is board certified in Endocrinology, Diabetes and Metabolism.

Alert Notice


We at Maryland Endocrine are closely monitoring the information and recommendations about COVID-19. We are  offering telemedicine for our patients. We will offer this to all our patients, unless we believe that they urgently need to be seen in person. We strongly encourage this for all patients. Currently we are able to offer telemedicine  by phone and televideo conference.

Any patient who has symptoms of an active respiratory infection, flu like symptoms or has had close exposure to an individual diagnosed with COVID-19, must reschedule their appointment. Anyone with signs of an active respiratory infection who does come to the office will be rescheduled.  We do not have the capability to test for COVID-19.

Please know that Maryland Endocrine is making significant efforts to provide the most accurate information to our patients.