Psychiatrist | 45+ years experience

Thomas Dennison, M.D.

1850 Gateway Dr, Sycamore, Illinois, 60178-3192

About Thomas Dennison

Thomas Dennison is a psychiatrist based in Sycamore, Illinois with 45 years of experience in Psychiatry. He completed his graduation from University Of Illinois College Of Med (chi/peor/rock/chm-urb) in 1981. He accepts the Medicare-approved amount. Patients will not be billed for any more than the Medicare deductible and coinsurance. Active license number of Thomas Dennison is 036-065089 for Psychiatry in Illinois. His current practice location is 1850 Gateway Dr, Sycamore. Patients can contact him at 815-758-8671. Thomas Dennison, M.D., specializes in Psychiatry and his NPI number (Unique professional ID assigned by NPPES) is 1588673719.

Thomas Dennison specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.

Practice Information

Thomas Dennison's specialty, credentials, practice address, contact phone number and fax are as below. Patients can call on the below given phone number for appointment.

Provider Name Thomas Dennison
Specialization Psychiatry
Credentials M.D.
Accepts Medicare Assignment Yes
Experience 45+ years
Medical School Attended University Of Illinois College Of Med (chi/peor/rock/chm-urb)
Graduation Year 1981
Gender Male
Practice Address: 1850 Gateway Dr,
Sycamore, IL - 60178-3192

Professional Identification Codes

NPI number stands for National Provider Identifier which is a unique 10-digit identification number issued to healthcare providers in the United States by the Centers for Medicare and Medicaid Services (CMS). NPI details are as mentioned below.

PAC ID 8729987276
Enrollment ID I20040105000473
NPI Number1588673719
NPI Enumeration Date: 05 Aug, 2006
NPI Last Update On: 10 Sep, 2012

Medical Licenses:

Healthcare professionals can hold one or more medical licenses for different specialties in the same state or different states. Related medical licenses for Thomas Dennison are as mentioned below.

License NumberSpecializationStateStatus
036-065089Psychiatry IllinoisPrimary

Group Practice

Group practices are practice of medicine by a group of healthcare professionals who share their premises and other resources. Following list states all the group name with which Thomas Dennison is associated with along with the number of members in that group.
Organization Name (Group PAC ID) Members
Central Dupage Physician Group (5890696231)1039
Kishwaukee Community Hospital (7012813348)3

Other Medical Identifiers

Other professional identifiers associated with Thomas Dennison such as Medicaid, Medicare PIN, NSC, UPIN etc. are mentioned as below.
IdentifierTypeStateIssuer
008451OtherIllinoisHEALTH ALLIANCE
036065089MedicaidIllinois

Mailing Address

Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned Practice address.

Thomas Dennison
1850 Gateway Dr,
Sycamore, IL - 60178-3192
Phone: 815-758-8671

Book an Appointment with Thomas Dennison

To schedule an appointment, contact Thomas Dennison at 1850 Gateway Dr, Sycamore, Illinois or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Thomas Dennison:

Thomas Dennison is a psychiatrist specializing in Psychiatry. He specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.

Thomas Dennison completed his education (M.D.) from University Of Illinois College Of Med (chi/peor/rock/chm-urb) in 1981.

Thomas Dennison has approximately 45 years of experience in Psychiatry.

Yes, Thomas Dennison accepts Medicare assignment, meaning the provider participates in Medicare and accepts Medicare-approved amounts for eligible services.

Yes, Thomas Dennison is currently accepting new patients. To schedule an appointment, contact the office directly and schedule an appointment.
*Availability may change. Please contact the office directly to ask about appointments.

Thomas Dennison practices at 1850 Gateway Dr, Sycamore, Illinois, 60178-3192.

To schedule an appointment with Thomas Dennison, please contact the office at 815-758-8671.

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**Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 14 September, 2026.