Kate IsselbacherMD
FOUNDER AND CEOKaren ‘Kate’ Isselbacher, MD, is the founder and CEO of Exceptional Health. With a strong lineage of physicians in her family, medicine

Karen ‘Kate’ Isselbacher, MD, is the founder and CEO of Exceptional Health. With a strong lineage of physicians in her family, medicine

Dr. Haff also earned a Master of Public Health in Clinical Effectiveness from the Harvard T.H. Chan School of Public Health.

Dr. Daniel Gaposchkin earned his Bachelor of Arts in Biology from the University of California, Berkeley. He then completed both his Master of Arts in Medical Science and his MD/PhD at Boston University School of Medicine. He went on to complete his residency in internal medicine at Lahey Clinic Medical Center, where he later served as both a ward attending and a preceptor for resident physicians.

Dr. Kevin Heaton graduated from Columbia University’s post-baccalaureate premedical program.

Dr. Christine Harrington is an internal medicine physician with extensive experience in primary care and medical education.

Dr. Li Tso is an experienced physician and Assistant Professor of Medicine at Harvard Medical School with nearly 30 years of clinical practice at Massachusetts General Hospital.

Julie Coffey is a nurse practitioner at Exceptional Health who brings extensive experience in primary care and a calm, attentive…

Amanda “Anoele” Perillo is a physician assistant at Exceptional Health who works closely with the practice’s physicians to support continuity,…
Our office staff are highly trained professionals who ensure every aspect of your experience runs smoothly, from scheduling and referrals to follow up care and insurance coordination.














Exceptional Health partners with a trusted network of leading hospitals and specialists, giving patients streamlined access to expert care when they need it most.





