Primary Care for Adults on Medicare in the Phoenix Metro Area. With more attention, more team member support, and more technology, Hatfield Medical Group is leading the conversation on what value means by lowering costs and improving accessibility. Hatfield Medical Group’s ambitious redefinition of what a doctor’s care can be is doctor-driven and patient-focused. Since 2019, Hatfield has grown from 5 clinics to 9 and is on pace to expand to 50 clinics in the next 5 years. Currently serving 35,000 patients, Hatfield Medical Group has set its sights on rapid expansion to bring our model of care to the entire Phoenix area, expanding throughout the state, and eventually the entire Southwest Region.