Doctors
Internal Medicine • Hannibal, MO
Clinic Type
Internal Medicine
Address
Internal Medicine - Hannibal, 100 Medical Drive, Hannibal, MO 63401
Phone
%28573%29231-3271
DenmanMedical@denserv.com
Opening Hours
Not published — contact the clinic to confirm hours.
Services Offered
Team
Insurance & Payment
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Languages Spoken
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Social Media
Photos
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
- Kory Blank, MD - Hannibal Regional Healthcare System — Mar 9, 2026
- Santhosh Mannem, MD | Complete Family Medicine — Feb 11, 2026
- International Eyecare Center - Hannibal: Eye Doctors in Hannibal — May 16, 2026
- Hannibal, David MD - Verified Ratings & Reviews — Dec 15, 2025
Information sourced from the clinic's website as of July 11, 2026.
More internal medicine clinics in Hannibal
Hannibal Regional Internal Medicine - Part of the Hannibal Regional Healthcare System, a nonprofit provider serving northeast Missouri and west-central Illinois. - Offers comprehensive internal medicine through Hannibal Regional Internal Medicine as part of a broader network that includes hospital services, family practice, pediatrics, and other specialties. - The system operates multiple offices (HQ at 6000 Hospital Drive, Hannibal, MO, and additional locations in Hannibal and Kirksville) with a focus on accessible, technology-enabled care close to home. - Affiliated services include audiology, cardiology, endocrinology, and more, supported by Hannibal Regional Hospital and related medical groups.
Complete Family Medicine is a nonprofit primary care organization that operates under Hannibal Regional Healthcare System. Founded in 2009 and headquartered in Kirksville, MO, it provides preventive and primary care services across northeast Missouri. Since joining Hannibal Regional in 2017, the network has expanded to include multiple clinics, school-based health partnerships (Kirksville R-III School District and Truman State University), and new specialties and locations (Specialty Group in 2021, Occupational Medicine in 2020, plus clinics in Brookfield 2022, Chillicothe 2023, and Paris 2024). The organization runs 3 offices across the United States (all in Kirksville, MO), employs about 24 staff, and operates as a nonprofit with ties to Hannibal Regional Hospital, Inc. Contact: various listed phone numbers; main site: cfmcares.com.
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