Gemma D Callahan
Behavior Analyst • Warrenville, IL
Professional Overview & Biography Verified Profile Summary
Gemma Callahan is a registered healthcare professional specializing in Behavior Analyst in Warrenville, IL. Practice services are available at 27555 DIEHL RD under active NPI credentials.
Practice Location & Contact Primary Location
27555 Diehl Rd
Warrenville, IL 605553849
Specialty Benchmarks & Practice Insights
Comparative analytics for Behavior Analyst in Warrenville, IL
Practicing in Warrenville, IL (3105 Statewide)
In-Person Office Visits Only
Under CMS Medicare Fee Schedule vs Standard Submitted Charges
Medical Specialties & State Licenses
CMS Verified: 2026-06-22NUCC Taxonomy Code: 103K00000X
A behavior analyst is qualified by at least a master's degree and Behavior Analyst Certification Board certification and/or a state-issued credential (such as a license) to practice behavior analysis independently. Behavior analysts provide the required supervision to assistant behavior analysts and behavior technicians. A behavior analyst delivers services consistent with the dimensions of applied behavior analysis. Common services may include, but are not limited to, conducting behavioral assessments, analyzing data, writing and revising behavior-analytic treatment plans, training others to implement components of treatment plans, and overseeing implementation of treatment plans.
Practice Associates & Co-Workers
Healthcare professionals and specialists practicing at this location or sharing practice phone/fax
Behavior Analyst
Occupational Therapist
Speech-Language Pathologist
MSCFSLP
Behavior Analyst
Speech-Language Pathologist
Speech-Language Pathologist (Certificate of Clinical Competence)
Occupational Therapist
Doctor of Occupational Therapy, Occupational Therapist Registered, L
Career & Practice History Timeline
Chronological log of verified NPI updates, location relocations, credentials, and registry changes
NPI status registered as active in NPPES database
Registered at 27555 DIEHL RD, WARRENVILLE, IL 605553849 (Tel: 6302811815)
Registered at 27555 DIEHL RD, WARRENVILLE, IL 605553849 (Tel: 6302811815)
Recorded as GEMMA CALLAHAN
Behavior Analyst (License #152.000987 in IL)
First registered as active Individual Practitioner in NPPES Database.
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NPI Administrative Meta
Mailing Address
27555 Diehl Rd
Warrenville, IL 605553849
Phone: 6302811815
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