Medical Services

About our Medical Services

The Medical Services Center employs board-certified psychiatrists and Psychiatric Advanced Registered Nurse Practitioners who provide medication management to both adults and children in collaboration with their therapy. These services include psychiatric evaluation, education, diagnostics and the administration of prescription medication. Qualifying diagnoses include: Severe Mentally Illness with bi-polar disorder, schizophrenia, ADHD, Autism Spectrum disorders, anxiety disorders and depression. Services are also provided to individuals diagnosed with Intellectual/Developmental Disabilities currently enrolled in the MR/DD program.

Lab Services

Four Rivers Behavioral Health offers complete lab services including substance abuse screening.
For more information, contact our Center for Medical Services at 270.442.1801.

What Medical Services are offered?

Medical Services Center nursing services include medication refills, medication problems and the distribution of samples. Other services provided are patient education and assistance with low cost assessment. Our onsite pharmacy, Genoa, is available for patients to fill prescriptions or ask questions that relate to their medications. Genoa also manages our Medline Prescription Questions Service.

We offer a weekly injection clinic for consumers who have been prescribed antipsychotic injections.

Four Rivers Behavioral Health’s Medical Services office works with patients to enroll them in patient assistance programs through drug manufacturers and obtain prior approval for medications through insurance.

Genoa Onsite Pharmacy

Making a separate stop to pick up medications can be a hassle. To make things easier for you,
we have pharmacies at our Paducah and Mayfield locations provided by Genoa Healthcare.

How Genoa Healthcare helps

Full-service pharmacy that can fill all of your medications, even those from your primary care physician.

Pre-filled pill organizers to help you take the right dose at the right time

A trusting and caring staff to help you with medicine and insurance questions

24-hour customer service line

You have the Four Rivers Behavioral Health. team on your side, and Genoa Healthcare is part of that team.
When you understand more about your medication, you feel better. 

Learn more about Genoa Healthcare at



Mayfield Phone: 270.804.4163
Hours: Monday-Friday: 8 a.m. – 5 p.m.

Paducah Phone: 270.366.7530
Hours: Monday-Friday: 8 a.m. – 5 p.m.

Dr. Duncan E. Darnell

Director of Medical Services

Dr. Duncan E. Darnell, MD is the Department Head for Four Rivers Behavioral Health’s Medical Services Center. Dr. Darnell graduated medical school from James H. Quillen College of Medicine and completed residency in General Psychiatry and a fellowship in Child/Adolescent Psychiatry at the Medical University of South Carolina’s Institute of Psychiatry. Dr. Darnell is the only Board Certified Child Psychiatrist in the region.