Patient Reviews

Reviews reflect patients' level of satisfaction with the care they received from this provider. Dr. David Preston xhas an overall rating of 5.0.


Dr. David Preston, MD is a Doctor primarily located in Winslow, ME. He has 31 years of experience. His specialties include Internal Medicine. Dr. Preston is affiliated with MaineGeneral Medical Center-Waterville Campus, American College of Physicians and Maine General - Augusta. He speaks English.


Find out the languages this doctor/ or staff may speak.


Learn where this doctor attended medical school.

Specialties & Expertise

Dr. David Preston has the following 12 areas of expertise, 1 specialty and 1 board certification.

Internal Medicine

An internist is a physician who focuses on the diagnosis and treatment of conditions that affect the adult population—both acute and chronic.
These doctors are often who adults see as their primary physicians because they treat a broad range of illnesses that do not require surgical or specialist interventions. They also work to help a patient maintain optimal health in order to prevent the onset of disease.
In addition to treating the common cold and flu, internists also treat chronic diseases like diabetes and heart disease.


See areas of expertise for treating specific conditions, procedures and surgeries for this doctor.

Board Certification

See the board certifications this doctor has received. Board certifications provide confidence that this doctor meets the nationally recognized standards for education, knowledge and experience.

Locations & Directions

Mid Maine Internal Medicine

80 Garland Rd
Winslow, ME 04901

Nearby Doctors

Dr. David Preston, MD is similar to these 3 Doctors near Winslow, ME.