Diane L Armstrong, MD | Primary Care | Mercy Health - Fairfield Internal Medicine
Mercy Health Provider

Diane L Armstrong, MD

Primary Care, Family Medicine

Virtual Visits Available

Meet Diane

I joined the Mercy Heath system in 2009 and have been practicing at Fairfield Internal Medicine and Rheumatology. I provide primary care services to patients of age 16+. I feel privileged to provide care to families in the Cincinnati area for over 30 years now. I live with my husband in Liberty Township and have 2 grown children and 1 grandson. In my spare time, I enjoy classical music, decorating, flowers/plants and nature.

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Insurances Accepted

Information is subject to change without notice. Please contact your insurance provider for confirmation.

  • Aetna Better Health OH
  • Aetna Commercial & Aetna Medicare OH
  • Aetna Medicare Advantage ACO OH
  • Aetna Whole Health ACO OH
  • AmeriHealth Caritas Medicaid OH
  • Anthem Elevance Health KY & OH
  • Buckeye Health Plan OH
  • CareSource OH
  • Cigna Healthspring Medicare Advantage OH
  • Cigna OH
  • CIN-MHS MSSP
  • CommuniCare Medicare Advantage OH
  • Corvel KY OH VA
  • Devoted Health Medicare Advantage OH KY
  • Direct Health Connect/H2B OH
  • Essence Lumeris OH
  • Frontpath Health Coalition OH
  • HealthSmart OH
  • Humana Medicare Advantage ACO OH
  • Humana Military KY & OH
  • Humana OH
  • Immergrun OH
  • Medicaid OH
  • Medical Mutual of Ohio
  • Medicare OH
  • Medicare Railroad KY & OH
  • Medigold OH
  • Molina Medicare & Medicaid OH
  • Multiplan OH
  • Ohio Health Choice
  • Paramount Elite Medicare Advantage OH
  • Payer Provider
  • Perennial Medicare Advantage OH
  • Quality Care Partners PPO OH
  • Sagamore OH
  • Sedgwick/Careworks KY OH SC VA
  • The Health Plan OH
  • Three Rivers Health Plan OH
  • United Healthcare OH
  • United Medicare Advantage ACO OH
  • USA MCO OH
  • Valor Health Plan OH
  • Wellcare Meridian MI

Ratings & Reviews

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Overall Score

5 out of 5 368 ratings, 58 reviews

Patient Reviews

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October 2025
Dr. Armstrong always takes the time to explain things. She is also very good at responding on My Bhart to any problems that arise or questions about medicatio.
October 2025
Dr. Armstrong is so very patient and understanding with my concerns. Explains medical terms in common language.
October 2025
I really appreciate Dr. ARMSTRONG. FULL CONFIDENCE IN HER.
October 2025
Dr Armstrong is the best doctor I have ever had. Her diagnosis is ALWAYS spot on. I trust her immensely!
October 2025
I have recommended before.
October 2025
Dr. Armstrong is an excellent primary care provider. She always gives me adequate time for any concerns I may have
October 2025
Kelly & Dr. Armstrong are both equally caring & Good at explaining health concerns!!
October 2025
Dr Armstrong is easy to talk to and very concerned, also very thorough! She listens carefully to the description of your symptoms and how you are feeling!