About our Physician – Mary A. Medeiros, M.D., M.P.H.

Despite an abiding love for music, Dr. Medeiros came from a family of physicians and knew she was headed for a career in medicine from an early age. With a Bachelor’s degree in Music, she led and participated in choirs and singing groups at every opportunity throughout her higher education. But she remembers the moment at Loma Linda University School of Medicine in SoCal, where she obtained her MD in 2004, when she knew primary care was her calling:

“During my Surgery rotation I saw a patient in clinic with a severe diabetic foot infection. It was my job that day to deal with his foot, possibly planning for amputation, but he had no primary doctor to manage his poorly controlled diabetes, which didn’t sit well with me. It was suddenly clear that what I wanted was to care for the whole patient.”

After completing Internal Medicine residency in 2007 at UMass Memorial Medical Center in Worcester, MA, Dr. M pursued a second board certification in Preventive Medicine, earning a Masters of Public Health (MPH) from UMass Amherst with a concentration on Epidemiology along the way, settling into an academic hospitalist position at her UMass training ground in 2009. However as her young children entered school, a pivot towards more predictable work scheduling led to Primary Care with Reliant Medical Group in Milford, MA starting in 2014.

After a few years crushed by increasing administrative tasks that are steadily eroding the souls of responsible, professional physicians, Dr. M resigned to open Thrive Adult Primary Care in 2017, a critical move to help her stay available both for her family and her patients.

Dramatic shifts across the healthcare landscape, particularly in the aftermath of COVID, have led to fundamental changes in the role of Primary Care Physicians, and even the identity of physicians at large in the eyes of society. With an unwavering belief that education is more lasting and powerful than any prescription for directing patients to a better life, Dr. M is adjusting her professional focus upstream in 2025, to do more than identify and treat chronic illness, rather to prevent it.

Meanwhile, Dr. M’s lifelong obsession with music reawakened in the form of Mirror’s Edge, a live music endeavor with highly talented friends delivering performances across New England together! But her first and last passions by far are her silly, handsome sons, Jay and Caleb.