Hours/Days of Operations

Due to the COVID-19 pandemic, ABS may temporarily have delays in our in-clinic services.

Clients are scheduled to match their therapist hours. It is essential parents abide by these hours to assure the best treatment plan for each child.

Hours of Operation 


Clinic Hours: Monday- Friday 7:00am -6:00pm

Administration Department: Monday- Friday 7:00am-4:00pm

Insurance Department: Monday- Friday 8:00am- 3:30pm

ABSpectrum will be closed on the following days in 2020:
  • New Year’s Day

  • Martin Luther King Day 

  • Memorial Day

  • Reset for Summer Semester (May 22)

  • July 3rd  (Independence Day Eve)

  • Labor Day

  • Columbus Day (Indigenous Peoples' day)  

  • Reset for Fall Semester (Oct 9)

  • Thanksgiving- (2 days - Thanksgiving day & the following Friday)

  • Christmas (2 days - Christmas Eve/Christmas Day)

Severe weather closings: Call/text our director (636) 248-1395​


AB Spectrum General Contact Information

Phone: (314) 339-7732

Email: info@abspectrum.org

Fax: (636) 244-4914



14733 Clayton Rd Chesterfield, MO​ 63011

Direct Line: (636) 284-9487

Email: chesterfield@abspectrum.org

St. Charles

1030 Wolfrum Rd, St Charles, MO 63304

Direct Line: (636) 445-4659

Email: stcharles@abspectrum.org

Administration Hours: 7:00am-4:00pm