Diana M Kellar, APRN-CNP

Primary Care, Family Medicine

Accepting New Patients

Virtual Visits Available

Meet Diana

I have been practicing medicine for 6 years, and I currently serve as the Lead Advanced Practitioner with Mercy Health Physicians. My clinical interest is in family practice with an emphasis on chronic disease management and prevention. In 2018, I received the Excellence in Medicine award. I give back to the community by volunteering in various church activities. Outside of my career, I enjoy crafts, baking and spending time with my family.

Find Locations Near You

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
  • Align Senior Care OH
  • AmeriHealth Caritas Medicaid OH
  • Anthem Elevance Health KY & OH
  • AultCare OH
  • Buckeye Health Plan OH
  • CareSource OH
  • Cigna OH
  • CIN - MHS MSSP
  • CIN - MHS NON-MSSP
  • CommuniCare Medicare Advantage OH
  • Devoted Health Medicare Advantage OH KY
  • HealthSmart OH
  • Healthspring Medicare Advantage OH
  • Humana Medicare Advantage ACO OH
  • Humana Military KY & OH
  • Humana OH
  • Immergrun OH
  • Martin's Point Health Care OH
  • Medicaid OH
  • Medicaid PA
  • Medical Mutual of Ohio
  • Medicare OH
  • Medicare Railroad KY & OH
  • Molina Medicare & Medicaid OH
  • Multiplan OH
  • NaphCare OH
  • Ohio BWC
  • 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
  • Sedgwick/Careworks KY OH SC VA
  • SummaCare OH
  • The Health Plan OH
  • United Healthcare OH
  • United Medicare Advantage ACO OH
  • Valor Health Plan OH
  • Wellcare Meridian MI

Ratings & Reviews

We believe in your choice to find the best care possible. With that in mind, it’s important to us that you have all the information you need readily available when considering making an appointment. We think it’s key that you understand how the Patient Satisfaction Rating works. Learn more about our survey process.

Overall Score

4.9 out of 5 253 ratings, 28 reviews

Patient Reviews

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April 2026
Diana takes time and listens and explains everything
April 2026
Always take their time and I never feel rushed.
April 2026
Diana is the greatest! She listens well, asks appropriate questions and offers her advice and options.
April 2026
Great experience
March 2026
My Dr is amazing
February 2026
Diana is always so kind and compassionate. She always has a clear treatment plan and makes sure all questions and concerns are answered.
February 2026
Keep DNP. KELLER forever give that women a raise.
February 2026
Diana is always thorough, friendly and knowledgeable.
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