HealthcareDiscovery.AI / Doctors / Missouri / Hannibal / Obstetrics & Gynecology

Obstetrics & Gynecology in Hannibal, Missouri

Data updated monthly · Last refresh September 2026

7 Obstetrics & Gynecology providers practice in Hannibal. Listings are drawn from federal public records and are not endorsements.

Obstetrics & Gynecology providers in Hannibal

Listed alphabetically. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.

Dr. Ivan Trinh, M.D.
Hannibal, MO · $457 in drug and device payments (2025) · (573) 231-3114
Dr. Jennifer Roberts Merriman, D.O.
Hannibal, MO · $176 in drug and device payments (2025) · Telehealth · (573) 629-3400
Dr. John Bennett, M.D.
Hannibal, MO · $111 in drug and device payments (2025) · (573) 629-3556
Dr. Julie Viehmann, DO
Hannibal, MO · $399 in drug and device payments (2025) · (573) 629-3507
Dr. Laura Maple, M.D.
Hannibal, MO · $269 in drug and device payments (2025) · (573) 629-3512
Dr. Lynn Walley, M.D.
Hannibal, MO · No drug or device payments recorded (2025) · (573) 231-3114
Dr. Sandra Ahlum, M.D.
Hannibal, MO · No drug or device payments recorded (2025) · (573) 231-3108

Conditions Obstetrics & Gynecology providers in Hannibal, Missouri commonly treat

Patients often search by condition rather than specialty. These are conditions typically managed by Obstetrics & Gynecology providers. Individual practices vary, so confirm with the provider before booking.

Common questions

How many Obstetrics & Gynecology providers are in Hannibal, Missouri?

There are 7 Obstetrics & Gynecology providers with active NPI records practicing in Hannibal, according to federal NPPES data refreshed monthly.

What conditions do Obstetrics & Gynecology providers in Hannibal treat?

Obstetrics & Gynecology providers in Hannibal commonly treat pregnancy care, endometriosis, fibroids, PCOS, menopause and related conditions. Individual practices vary, so confirm with the provider before booking.

Where does this data come from?

Provider records come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.

All specialties in Hannibal Obstetrics & Gynecology across Missouri

Try a city like Tucson, a zip like 85016, or a specialty like psychiatry. For a doctor by name, use the full search.
Sources: NPPES (CMS), Doctors and Clinicians national files, CMS Open Payments 2025. Updated monthly. Records are public federal data and are not verified credentials, licensure checks, or endorsements. This directory is informational and not medical advice. How we build this directory.