Department of Psychiatry

Penn Behavioral Health

Contact Us

Charles O'Brien Center for Addiction Treatment
3535 Market Street, 4th Floor
Philadelphia, PA 19104

Treatment Research Center
3900 Chestnut Street
Philadelphia, PA 19104
Driving Directions

Please note that the entrance is on 39th Street between Chestnut Street and Sansom Street. Look for the blue awning over the entrance.


The only parking outside the Center is metered parking. The meters accept change only and cost $1.50/hour. The closest parking garage is at 4001 Walnut Street (entrance on Walnut).

Visit Us

For additional information or to schedule an appointment, please call 215-746-5900.

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