About
Dr. Catherine Joyce joined Greenwich Medical Partners in 2021, bringing board certification in internal medicine and a strong foundation in hospital-based care. She earned a BA in History from Williams College, where she competed on the varsity swim team, then completed post-baccalaureate pre-med studies at Columbia University. She went on to earn her MD from the University of Massachusetts Medical School, a program nationally recognized for its strength in primary care.
She trained at Greenwich Hospital, part of the Yale-New Haven Medical System, and rose to Chief Resident. As Chief, she taught residents, developed curricula, and managed the day-to-day operations of the residency program. Following residency, she served as a Hospitalist Physician at Greenwich Hospital, including during the height of the COVID-19 pandemic in 2020. Her clinical approach centers on evidence-based medicine and individualized patient care. Outside of medicine, she enjoys tennis, youth hockey, and time with her family.
Education & Training
Undergraduate
Williams College, BA History
Medical School
University of Massachusetts Medical School (MD)
Residency
Greenwich Hospital (Residency and Chief Residency)
Additional Training
Post-baccalaureate pre-med: Columbia University
Certifications
Conditions Treated
Who is Dr. Joyce right for?
Dr. Joyce is a strong fit for adults seeking a primary care physician with deep hospital medicine experience. Patients managing acute illness, chronic conditions, or complex care needs benefit from her evidence-based approach. Her background as a Hospitalist and Chief Resident means she navigates complicated clinical situations with confidence. She also suits patients who value a doctor attentive to the full picture of their health.
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Frequently Asked Questions
Dr. Joyce specializes in internal medicine and primary care. She focuses on evidence-based medicine and tailors her approach to each patient's individual needs. Her background spans both outpatient primary care and inpatient hospital medicine.
Yes, Dr. Joyce holds board certification in internal medicine. She earned her MD from the University of Massachusetts Medical School, a program recognized for its strength in primary care.
Dr. Joyce completed her residency at Greenwich Hospital, part of the Yale-New Haven Medical System. She rose to Chief Resident, where she taught residents and oversaw residency operations. She later served as a Hospitalist Physician at Greenwich Hospital.
Dr. Joyce sees adults across a wide range of primary care and internal medicine needs. She is experienced with both chronic disease management and acute illness. Her hospital medicine background makes her well-suited for patients with complex or multi-system health concerns.
Dr. Joyce joined Greenwich Medical Partners in 2021. She brought her hospital-based clinical experience, including work during the COVID-19 pandemic in 2020, to the concierge practice setting.
Before joining Greenwich Medical Partners, Dr. Joyce worked as a Hospitalist Physician at Greenwich Hospital. She served in that role through the COVID-19 pandemic in 2020. Prior to that, she completed her residency and Chief Residency at the same institution.
Dr. Joyce earned her MD from the University of Massachusetts Medical School. The program holds national recognition for its strength in primary care training. She also completed post-baccalaureate pre-med studies at Columbia University before medical school.
Doctor profile last updated March 21, 2026