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
  • AmeriHealth Caritas Medicaid OH
  • Anthem Elevance Health KY & OH
  • Buckeye Health Plan OH
  • CareSource 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
  • Healthspring Medicare Advantage 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
  • OMC (Oscar Mgmt) OH KY SC VA
  • 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 5 402 ratings, 79 reviews

Patient Reviews

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June 2026
Dr. Armstrong is very thorough and informed. She is a great care-giver.
June 2026
Dr. Armstrong always acts like I am her only patient of the day. She spends as much time as I need. I had 4 Items to address, and she took the time to discuss each one of them with me.
June 2026
Thank you.
June 2026
I was embarrassed by the problem I was having and Dr. Armstrong is always so professional and helpful; she dealt with It very straight-forwardly. She really helps me not feel ashamed or embarrassed.
June 2026
Have been with Dr. Armstrong for many years and I am very satisfied! I am in good hands with her !
June 2026
Dr. Armstrong is the best. I've been a patient of hers for over 25 years. I dread the day she tells me she is going to retire.
June 2026
Dr Armstrong is very caring, knowledgeable and efficient.
June 2026
Dr. Armstrong is always thorough.
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