Placeholder Photo for William O'Neill, MD, FACC, FSCAI, FAHA

A cardiologist in Farmington, ME, Dr. William O'Neill is trained to care for your cardiovascular system & heart, treating conditions such as heart disease.


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Dr. O'Neill

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of Dr. O'Neill


Henry Ford Health System  


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Accepting New Patients?

Yes, Dr. William O'Neill is accepting new patients at this office.


2799 West Grand Boulevard K13, Farmington, ME 04938

Office Hours

  Open Lunch Close
Mon 12:00 - 1:00 pm
Tue 12:00 - 1:00 pm
Wed 12:00 - 1:00 pm
Thu 12:00 - 1:00 pm
Fri 12:00 - 1:00 pm

Office Details

Doctor Specialty Cardiology
Accepting New Patients? Yes
Practice Specialty Internal Medicine
Hospital Affiliation
  • Henry Ford Hospital
Languages Spoken Arabic, English, French, German, Italian, Korean, Mandarin, Polish, Portuguese, Russian, Spanish, Tagalog, Vietnamese

Insurance Accepted  

  • Other

About Dr. O'Neill
Dr. O'Neill



Dr. O'Neill has one office in Maine and specializes in Cardiology.

Dr. O'Neill works with two hundred and ninety doctors including Dr. Vanji Karthikeyan and Dr. Yakir Muszkat.


Languages Spoken  

  • English

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