James A. Warren , MSW
Social Worker β’ Champaign, IL
1802 S Mattis Ave
Champaign, IL 618215923
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
1802 S Mattis Ave
Champaign, IL 618215923
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
Social Worker: NPPES taxonomy is a reported classification, not proof of board certification.
NPI first issued
2007
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 Champaign and Illinois
272 active clinicians are listed under Social Worker with a practice address in Champaign, IL (6,067 in Illinois).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Champaign
0.7% of these 272 clinicians have the CMS telehealth indicator.
2.6% of these 272 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: 2021-01-12NUCC Taxonomy Code: 104100000X
A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.
NUCC Taxonomy Code: 104100000X
A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Psychologist
Doctor of Philosophy (Ph.D.)
Psychiatry & Neurology - Psychiatry
Doctor of Medicine (M.D.)
Psychiatry & Neurology - Psychiatry
Psychiatry & Neurology - Psychiatry
Doctor of Medicine (M.D.)
Nurse Practitioner - Psychiatric/Mental Health
Advanced Practice Registered Nurse, Psychiatric-Mental Health Nurse Practitioner (Board Certified)
Social Worker - Clinical
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 1802 S MATTIS AVE, CHAMPAIGN, IL 618215923 (Tel: 2173652855)
Registered at 611 W PARK ST, FAPC, URBANA, IL 61801
Social Worker (license number reported to NPPES: IL 149013842)
NPI status registered as active in NPPES database
Registered at 1801 FOX DR, CHAMPAIGN, IL 618207236 (Tel: 2173988080)
Registered at 1801 FOX DR, CHAMPAIGN, IL 618207236 (Tel: 2173988080)
Recorded as JAMES WARREN, MSW
Social Worker
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Mailing Address
611 W Park St, Fapc
Urbana, IL 61801