Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Bys Speech and Occupational Therapy Services, LLC

Organization Occupational Therapist · NPI 1316224462

Bys Speech and Occupational Therapy Services, LLC is an Occupational Therapist in Darien, Illinois. Works from 6 locations. Registered with an NPI since 2011.

In the registry since
2011
Specialties on file
2
What do these letters mean?
LLC — Limited liability company
A form of business registration, not a clinical qualification.

See every abbreviation used in this directory →

Practice location Address checks out

8201 Cass Ave
Darien, IL 60561-5314
Phone: (630) 590-5571
Fax: (630) 326-7175
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (5)

  • 3070 Business Park Dr Ste B, Norcross, GA 30071-1428 — (630) 590-5571
  • 8145 River Dr, Morton Grove, IL 60053-2660 — (630) 590-5571
  • 1300 Remington Rd Ste K, Schaumburg, IL 60173-4800 — (847) 496-5513
  • 255 38th Ave, St Charles, IL 60174-5411 — (630) 590-5571
  • 8200 185th St Ste Ab, Tinley Park, IL 60487-9232 — (630) 590-5571

Specialties & licences

Speech-Language Pathologist (primary) Taxonomy 235Z00000X
Occupational Therapist Taxonomy 225X00000X

Record details

NPI number1316224462
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Matthew Sullivan — Cfo · (630) 590-5571
NPI enumeratedNovember 3, 2011
Last updated in NPPESFebruary 4, 2021
Certification dateFebruary 4, 2021
Mailing address8201 Cass Ave, Darien, IL 60561-5314

Other providers in Darien