Mary DeLois, Family Nurse Practitioner and Primary Care Provider

About Us

Having worked in nursing for thirty years including 15 years as a nurse practitioner, Mary DeLois has a breadth of knowledge and experience that enables her to make appropriate judgments regarding your care.  Mary's vision in opening this practice was to provide quality and affordable care to everyone. Mary knows the importance of taking the time to listen to her patients and empathizes with their desire to lead healthy lives. The practice boasts a warm and welcoming staff that helps to make your experience more personal and comfortable.  Our mission is simple: Regardless of income, all patients should have access to quality health care.


Because each patient's needs and concerns are unique, we will work with you to create a customized health plan that individualizes your needs.  At our practice, you will find the following services available:

  • Acute, Chronic and Preventative Care
  • Health Screening
  • Diagnostic Testing
  • Prescriptions
  • Diagnosis & Treatment
  • Lab Testing
  • Minor suturing
  • Referrals
  • House Calls


We believe that building lasting relationships with our patients is the first step in providing them with appropriate care.  It is through these relationships that we advocate a positive approach to health care based on health promotion, primary care and preventative medicine.  In treating a patient, we consider and value all modalities outside of traditional medicine to ensure an accurate and thoughtful treatment.

Mary DeLois's office is at 100 Brickhill Avenue in South Portland


Our practice is conveniently located in South Portland, Maine, in close proximity to the Portland International Airport and the Maine Mall.  We reside in "The Castle" building at 100 Brickhill Avenue.

Are you ready for a different kind of care?

The first step toward receiving quality and affordable primary care is to contact Mary DeLois, Family Nurse Practitioner at 207-761-4700.  Working with you, she will create a customized and personal primary care plan that directly addresses your medical concerns and needs.