Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Eliezer Tzvi Margolis, PH.D.

Group Psychotherapy Psychologist in Evanston, IL · enumerated 2005 · practices at 2x4 Chiropractic.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1770560849

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Eliezer Tzvi Margolis

Credential PH.D.

Sex Male

Practice address Evanston, IL, 60202

Phone (847) 869-6236

Enumeration date Dec 29, 2005

Last updated in NPPES Sep 11, 2025

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers Secondary

103G00000X Clinical Neuropsychologist Behavioral Health & Social Service Providers Secondary

103TR0400X Rehabilitation Psychologist Behavioral Health & Social Service Providers Secondary

103TH0100X Health Service Psychologist Behavioral Health & Social Service Providers Secondary

106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers Secondary

103T00000X Psychologist Behavioral Health & Social Service Providers Secondary

103TA0700X Adult Development & Aging Psychologist Behavioral Health & Social Service Providers Secondary

103TC1900X Counseling Psychologist Behavioral Health & Social Service Providers Secondary

103TF0000X Family Psychologist Behavioral Health & Social Service Providers Secondary

103TF0200X Forensic Psychologist Behavioral Health & Social Service Providers Secondary

103TP2701X Group Psychotherapy Psychologist Behavioral Health & Social Service Providers Primary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Eliezer Margolis practice?

The practice location on file with NPPES is in Evanston, IL. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Eliezer Margolis?

The National Provider Identifier (NPI) for Eliezer Margolis is 1770560849, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

2x4 Chiropractic Health Service Clinic/Center · Evanston, IL NPI 1609602689

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.