Note: Dr. Chasson’s voicemail and email systems are confidential and HIPAA-compliant

(312) 386-7511

(844) 633-7262

Dr. Chasson (OCS Chicago) is located in downtown Oak Park, on the second floor of the commercial suites inside the Shaker Building. 
1100 Lake Street, Suite 255
Oak Park, IL 60301

Directions from the ‘L’
The building is located a block Northeast of the Harlem/Lake green line “L” stop in Oak Park, IL. Walking instructions

Directions from Chicago via I-290
Take I-290 exit 21B for IL-43/Harlem Ave. Head North on IL-43 N/Harlem Ave. Turn onto Lake St heading East. Building is located on Lake Street just before North Marion St.                                      Driving instructions

There is a parking garage directly behind the Shaker Building, where Dr. Chasson (OCS Chicago) is located.  It’s called the Holley Court Garage, which is accessible from North Marion Street.
Holley Court Garage
1149 Holly Ct
Oak Park, IL 60301

There is a convenient footbridge between Holley Court Garage and the Shaker Building, where Dr. Chasson (OCS Chicago) is located. This footbridge places you a short distance from Dr. Chasson’s office. Park on the 3rd floor of the parking garage in the Southeast corner. Find the pedestrian exit on the Southeast corner of the 3rd floor of the garage and take the footbridge to the Shaker Building. The bridge exits onto the 2nd floor of the Shaker Building. Walk down the main hallway as you enter the Shaker Building and look for Suite 255 on the righthand side.

In the garage, parking is free for the first 1.5 hours, after which fees apply. See the Oak Park Public Parking Garage website for more rate details.  

Paid parking can also be found in a lot connected to the entrance of the Holley Court Garage, as well as on the streets surrounding the Shaker Building. 


Before emailing Dr. Chasson or submitting the contact form below, please read the following disclaimer.


The following form is not intended for emergencies. If you are experiencing a mental health emergency, please dial 911 or go to your local emergency room immediately.

Upon submission, your responses to the following form are transmitted directly to Dr. Chasson’s HIPAA-compliant and confidential email.

info [at]


Contact Form