William Keith
Psychologist β’ Chicago, IL
820 S Damen Ave
Chicago, IL 606123728
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
820 S Damen Ave
Chicago, IL 606123728
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
Psychologist: NPPES taxonomy is a reported classification, not proof of board certification.
NPI first issued
2021
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; 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.
Compared with the same specialty in Chicago and Illinois
333 active clinicians are listed under Psychologist with a practice address in Chicago, IL (1,011 in Illinois).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Chicago
8.7% of these 333 clinicians have the CMS telehealth indicator.
13.5% of these 333 clinicians are listed by CMS as accepting Medicare assignment.
Sources: CMS Doctors and Clinicians, 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: 2025-07-21NUCC Taxonomy Code: 103T00000X
A psychologist is an individual who is licensed to practice psychology which is defined as the observation, description, evaluation, interpretation, and modification of human behavior by the application of psychological principles, methods, and procedures, for the purpose of preventing or eliminating symptomatic, maladaptive, or undesired behavior and of enhancing interpersonal relationships, work and life adjustment, personal effectiveness, behavioral health, and mental health. The practice of psychology includes, but is not limited to, psychological testing and the evaluation or assessment of personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning; counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy; diagnosis and treatment of mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability; and psycheducational evaluation, therapy, remediation, and consultation. Psychological 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.
Internal Medicine - Gastroenterology
Doctor of Medicine (M.D.)
Nurse Practitioner
Dentist
Doctor of Dental Medicine
Optometrist
Nurse Practitioner
ANPBC, Master of Science in Nursing, CURN
Podiatrist - Foot & Ankle Surgery
Doctor of Podiatric Medicine
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 820 S DAMEN AVE, CHICAGO, IL 606123728 (Tel: 3125698387)
Registered at 641 N CUYLER AVE, OAK PARK, IL 603021702
Psychologist (license number reported to NPPES: IN 20043978A)
NPI status registered as active in NPPES database
Registered at 1737 S NAPERVILLE RD STE 206, WHEATON, IL 601895894 (Tel: 6306539700)
Registered at 1122 WASHINGTON BLVD APT 2A, OAK PARK, IL 603023645
Recorded as WILLIAM KEITH
Student in an Organized Health Care Education/Training Program
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Psychologists in Chicago
- Dr. Jan Roy, PsyD
- Dr. Madison Simons, PsyD
- Daniel Fridberg
- Dr. Claudia Mosier, PsyD
- Dr. Ren Duarte, PsyD
- Dr. Amy Savage, PsyD
Mailing Address
641 N Cuyler Ave
Oak Park, IL 603021702