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Diana M Kellar, APRN-CNP

  • Primary Care
  • Family Medicine

Accepting New Patients

Virtual Visits Available

Mercy Health Physicians

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.

Places of Care

Insurances Accepted

Diana M Kellar, APRN-CNP, accepts a variety of health insurance types, including Medicare, commercial and Medicaid, to better serve our communities. To check if your insurance is accepted, search for your plan below. Please know this list is subject to change and it is always a good idea to confirm coverage and restrictions with your insurance provider before scheduling visits and procedures.

Ratings & Reviews

We support your choice for the best care and believe it's vital you have all the information when making an appointment. Understanding the Patient Satisfaction Rating is key. Learn about our survey process.

Overall Score

5 out of 5 263 ratings, 31 reviews

Patient Reviews

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July 2026
I cannot say enough wonderful comments about Diana Kellar! She is knowledgeable, compassionate, explains in detail everything I need to know.
July 2026
Diana Kellar was very thorough and explained And answered all my questions. I felt after my visit tat I would have a good idea what had caused diarrhea after lab was done.
July 2026
Excellent care
July 2026
Diana is fabulous
July 2026
Couldn't be happier with Diana Kellar
July 2026
Once I was finally seen by the nurse practitioner, I had no problem with her. She's always kind and listens to me and we discussed everything personally.
June 2026
Every experience has been extremely good. If not, I would no longer going there.
June 2026
I always feel at ease
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