Nurse Practitioners have been working to help care for patients for decades. As there are differences between an MD and DO, the NP (Nurse Practitioner) has similar training also including a holisitc/patient centered approach. Please follow this link below to learn more what a Nurse Practitioner is and what they do.
There are also many questions reagrding the care received by patients from Nurse Practitioners vs Physicians. There are a wealth of studies that focus on this. Below is a brief abtract of just one for your review.