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Doctors

4.9 out of 5 · 268 reviews

Internal Medicine • Hannibal, MO

About

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Clinic Type

Internal Medicine

Address

Internal Medicine - Hannibal, 100 Medical Drive, Hannibal, MO 63401

Phone

%28573%29231-3271

Email

DenmanMedical@denserv.com

Opening Hours

Not published — contact the clinic to confirm hours.

Website

https://www.blessinghealth.org/doctors?blessing=1&page=3&proximity=hannibal%2C+mo&sort=dist

Services Offered

  • Internal Medicine
  • Geriatric Care

Team

  • Clay Thornburg — DNP, AGNP-BC
  • Christina Remmert — DO

Insurance & Payment

—

Languages Spoken

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Social Media

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Photos

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What Patients Say

Overall sentiment across review platforms: mixed

  • Healthgrades (Dr. Tanya Sellers-Hannibal): 4.0 out of 5 stars (5 ratings)
  • BirdEye (Dr. Matthew D. Hannibal): 4.9 out of 5 stars (255 reviews)
  • BirdEye (Clarity Healthcare, Hannibal): 4.0 out of 5 stars (8 reviews)

Patients praise

  • Professional and knowledgeable doctors
  • Effective and positive surgical or treatment outcomes
  • Staff helpfulness in administrative/billing matters when resolved
  • Good bedside manner and willingness to listen to patient concerns

Common complaints

  • Billing and payment process concerns
  • Perceived lack of time spent with patients or rushing visits
  • Rude or unhelpful front-desk and reception staff
  • Disappointment in diagnosis or lack of clarity regarding care plans

"The doctor was very patient and listened patiently to my concerns. I would definitely recommend Dr. Hannibal."

— BirdEye (Dr. Matthew D. Hannibal)

"BEWARE!! BEWARE!! BEWARE!!... I tell her I thought these visits were follow up and I couldn’t believe I am being charged for pickup when Dr Sellers didn’t do anything."

— Healthgrades (Dr. Tanya Sellers-Hannibal)

"She had no problems prescribing meds, but talking to a child for 15 minutes and then giving them medicine without knowing what they are dealing with... is careless and dangerous."

— BirdEye (Clarity Healthcare, Hannibal)

Synthesized from public review platforms as of Jul 11, 2026 — sources: [1][2][3][4].

In the News

Information sourced from the clinic's website as of July 11, 2026.

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