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Our headquarters and primary early phase clinical facility is in Chula Vista, CA, 10 miles south of San Diego’s downtown area, 13 miles south of San Diego International Airport, and 7 miles north of the US-Mexico border. However, ProSciento. has additional sites where we conduct both screening and studies. So, if you have any questions regarding where you are scheduled to screen or participate in a study, please contact us by email at or call us at +1 (866) 308-7427.

The address of our facility in Chula Vista is:


Medical Plaza II
855 Third Avenue
Chula Vista, CA 91911

On-site parking and convenient access via public transportation is available.

To reach us from the bus line | From the trolley | Directions

To reach us from the bus line:

Take the 929 Bus and get off at the 3rd Avenue at “L” Street stop. Address is 855 Third Avenue. We are located in the Centre Medical Plaza, next to the Chula Vista Family Clinic.

The screening department is located in the one story building on the left (865 Third Avenue). Look for the sign that has the ProSciento logo.

The door will be locked, so please knock or ring the bell to enter.
The main clinic and administrative offices are located at 855 Third Avenue (the tall building) on the fourth floor.

To reach us from the trolley:

Take the “Blue Line” Trolley and get off at the “H” Street stop in Chula Vista (stop #19) and call ProSciento main line at +1 (619) 427-1300 or your project manager’s number, asking for transportation to ProSciento at: 855 Third Avenue – Suite 4400 (for a clinic visit) or 865 Third Avenue – Suite 100 (for a screening visit).

ProSciento Directions