~ DanielOLeary.MD.com ~

As an internist in Leominster, MA, Dr. Daniel O'Leary is skilled at the treatment & diagnosis of a large array of ailments & diseases in adults.

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Dr. Daniel O'Leary graduated from University of Massachusetts Medical School in 1985.

Dr. O'Leary has one office in Massachusetts where he specializes in Internal Medicine. Learn more.

Dr. O'Leary works with one doctor, Dr. Robert Fraser.

Education & Training  

Medical School

Hospital Affiliations

  • Healthalliance Hospital - Leominster

Languages Spoken  

  • English

Leominster Medical Associates  


50 Memorial Dr Ste 205, Leominster, Massachusetts 01453-2238

Office Hours

  Open Lunch Close
Mon 9:00 am 5:00 pm
Tue 9:00 am 5:00 pm
Wed 9:00 am 5:00 pm
Thu 9:00 am 5:00 pm
Fri 9:00 am 5:00 pm

Office Details

Doctor Specialty Internal Medicine
Practice SpecialtyInternal Medicine
Group PracticeLeominster Medical Associates
Hospital Affiliation
  • Healthalliance Hospital - Leominster
Languages Spoken Arabic, English, French, German, Italian, Korean, Mandarin, Polish, Portuguese, Russian, Spanish, Tagalog, Vietnamese

Insurances Accepted  

  • Aetna
  • BlueCross BlueShield
  • Cigna
  • UnitedHealthcare
  • Other