Nathan Edward Clark , MED, BCBA
Behavior Analyst β’ Lincolnwood, IL
4433 W Touhy Ave Ste 335
Lincolnwood, IL 607121820
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
Practice Location & Contact Primary Location
4433 W Touhy Ave Ste 335
Lincolnwood, IL 607121820
NPPES lists 1 additional practice-address record in Des Plaines, IL. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
What Public CMS Data Show
Behavior Analyst: NPPES taxonomy is a reported classification, not proof of board certification.
NPI first issued
2018
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians, CMS release of October 2, 2026; Medicare.gov, βDoes your provider accept Medicare as full payment?β
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians, CMS release of October 2, 2026.
Compared with the same specialty in Lincolnwood and Illinois
32 active clinicians are listed under Behavior Analyst with a practice address in Lincolnwood, IL (3,151 in Illinois).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Lincolnwood
0% of these 32 clinicians have the CMS telehealth indicator.
0% of these 32 clinicians are listed by CMS as accepting Medicare assignment.
Sources: CMS Doctors and Clinicians, CMS release of October 2, 2026, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo Β· Report an error.
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2020-08-05NUCC 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.
Additional State Medicaid & Healthcare Payer Identifiers
Secondary Practice Locations
950 Lee St Ste 210
Des Plaines, IL 600166574
Phone: 8774864140
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 4433 W TOUHY AVE STE 335, LINCOLNWOOD, IL 607121820 (Tel: 7656353349)
Additional practice office at 950 Lee St Ste 210, Des Plaines, IL 600166574
Recorded as NATHAN CLARK, M.ED., BCBA
Behavior Analyst (license number reported to NPPES: IL 1-20-43731)
NPI status registered as active in NPPES database
Registered at 950 LEE ST STE 210, DES PLAINES, IL 600166574 (Tel: 8774864140)
Registered at 950 LEE ST STE 210, DES PLAINES, IL 600166574 (Tel: 8774864140)
Recorded as NATHAN CLARK
Behavior Technician (license number reported to NPPES: IN RBT-16-26150)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Mailing Address
950 Lee St Ste 210
Des Plaines, IL 600166574
Phone: 8774864140