Mayo Logo
  • Guilford Medical Associates
  • affiliated with
  • Mayo Regional Hospital
Guilford Medical Associates
  • 3 Park St., PO Box 270
  • Guilford, Maine 04443
  • 207-876-3547
Primary Care


Guilford Medical Associates

  • Monday: 7:00am to 5:00pm
  • Tuesday: 7:00am to 4:30pm
  • Wednesday: 7:00am to 4:30pm
  • Thursday: 7:00am to 4:30pm
  • Friday: 7:00am to 4:30pm
  • Closed Saturday & Sunday

Contact Us:

  • Guilford Medical Associates
  • PO Box 270
  • 3 Park St.
  • Guilford , ME 04443

Directions to Here

  • Main
  • Providers
  • Directions
  • Patient Forms

Guilford Medical Associates is owned and operated by Mayo Regional Hospital and staffed by two physicians and two nurse practitioners. Each primary care provider is supported by a medical assistant. There are two clerical staff supporting the four providers.

The office is open Monday through Friday, and staff offer complete medical care with a wide array of services: comprehensive physical exams, well-child exams, sports physicals and pre-operative physicals. Chronic disease examinations are set up on a three-month basis, unless the need is sooner. Slots have been left for acute illness care on a daily basis. The office does minor skin lesion removal, strep tests, pregnancy tests, blood drawing and a variety of lab tests. Blood draws are sent to Mayo Regional Hospital's laboratory and results are sent back to Guilford via fax or courier.

The office offers counseling services to patients each week through the Mayo Counseling program.

Notice to Patients(PDF)

Ann Holland MD

Medical Doctor

Scope of Practice:
Family Practice

Sohaib Siddiqui MD

Medical Doctor

Scope of Practice:

Carolyn Wiese PA-C

Physician Assistant

Scope of Practice:
Family Practice

Accepting new patients

Susan Chessa NP

Nurse Practitioner

Susan Chessa NP

Education: Family and Community Nurse Practitioner Program, Husson College, 2003-2007;
Master of Education, University of Maine;
Bachelor of Science in Nursing, University of Southern Maine, 1974

Scope of Practice:
Family Practice


The map below is a fully navigable google map, you may use the map controls to navigate within the 'map canvas'. You can also get Turn by turn Directions from Google Maps.

If google map doesn't load

There are no patient forms at this time.