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mancini md

Founder, Doctor of Fitness

A former two-sport Division I College athlete, Dr. Lee Mancini is a sports medicine physician, certified sports nutritionist, and certified (with distinction) strength & conditioning specialist.

A leader in the field of sports nutrition, supplements, and sports performance, Dr. Mancini has published articles, written book chapters, and spoken nationally on these topics.

“Keep moving forward and never stop.”
Dr. Mancini’s Philosophy
Founder & Personal Trainer


sports background

The son of a semi-professional football player and former college football coach, Lee grew up in Ithaca, NY, where sports were always a part of his life. In high school, Lee played baseball, ice hockey, soccer, swimming, and basketball. He attended Harvard for college, was a two-sport Division 1 athlete, playing baseball and ice hockey, while at the same time graduating with honors in biology. While still a medical student, he completed the Boston Marathon.


Dr. Mancini attended Jefferson Medical College in Philadelphia, PA, where he kept active with road races, strength competitions, and sprint distance triathlons. After medical school, he completed a residency in Family Medicine and a fellowship in Sports Medicine at the University of Massachusetts. He is currently in practice at UMass Memorial Medical Center as a Sports Medicine specialist.

team associations

As a Sports Medicine physician, Dr. Mancini has provided care for many high school, college, and professional athletes. The list of college athletic teams includes Holy Cross College, Fitchburg State College, Worcester State College, Assumption College, and The University of Massachusetts (UMass) at Amherst. He has worked with three professional organizations, and currently through the Sports Medicine Center he provides care for the Boston Red Sox Minor League Organization. Dr. Mancini is the team physician for Assumption College, and for the student-athletes at Shrewsbury High School.


  • MD, Board Certification, Sports Medicine & Family Practice (C.V.)

  • NSCA CSCS*D: Certified with Distinction Strength and Conditioning Specialist

  • NASN, IFA: Certified Sports Nutritionist

During the many years of training to become a physician, Dr. Mancini devoted many hours training numerous high school, college, and recreational athletes. In addition:

  • His private clients benefit from his knowledge and experience as a certified strength and conditioning specialist and certified sports nutritionist.

  • He has helped injured athletes return to play sooner

  • He has helped diabetic patients lose weight and control their sugars more effectively

  • He has created training programs that have enabled sports participants of all ages to reach the next level of competition

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