Thomas A Dennison MD

Vitals cannot verify whether or not this professional is currently practicing. We recommend that you attempt to contact the provider to verify their status. Please email us at if you have any additional information.


Thomas A Dennison, MD is a Doctor primarily located in Sycamore, IL, with other offices in Sycamore, IL and Sandwich, IL (and 3 other locations). His specialties include Psychiatry. Thomas A Dennison is affiliated with Kishwaukee Community Hospital and Valley West Community Hospital.

Specialties & Expertise

Thomas A Dennison has the following 1 specialty.


A psychiatrist is a doctor with specific training in the diagnosis and treatment of mental illness.

He or she can not only provide the counseling necessary to both diagnose and treat a patient, but can also prescribe medication when needed. In some cases, a psychiatrist will only provide the medication and the counseling will be provided by another healthcare specialist, like a certified counselor or psychologist.

Like other doctors, psychiatrists employ diagnostic tools like CT scans and MRI in order to observe the structure and function of a patient's brain.

Once a diagnosis is made, these specialists may use behavior or cognitive therapy in order to address the patient's condition, or a multitude of other types of therapy, in conjunction with or in place of medication.

Locations & Directions

1850 Gateway Dr
Sycamore, IL 60178

760 Foxpointe Dr
Sycamore, IL 60178

1310 N Main St
Sandwich, IL 60548

100 S Latham St
Sandwich, IL 60548

125 S 4th St
Oregon, IL 61061

1300 W 2nd St
Rock Falls, IL 61071