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DR. NATHANIEL SAHYOUNI PSYD
NPI 1609333962
Psychologist - Clinical in Chicago, IL

Active since February 22, 2019
111 N WABASH AVE STE 1400, CHICAGO, IL 60602(312) 436-1657 Get Directions Write a Review

NPPES record last updated: February 22, 2019. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Nathaniel Sahyouni Psyd NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. NATHANIEL SAHYOUNI PSYD (NPI 1609333962) is an individual clinical provider in Chicago, Illinois, licensed in Illinois (071.009970) and active in the NPI registry since February 2019.

NPPES Registry Identity

NPI1609333962
Entity TypeIndividualMale
Primary Taxonomy103TC0700X
Provider Legal NameDR. NATHANIEL SAHYOUNICredential: PSYD
Location Address111 N WABASH AVE STE 1400Chicago, IL 60602-3074
Mailing Address111 N Wabash Ave Ste 1400Chicago, IL 60602-3074 · (312) 436-1657
Phone(312) 436-1657
Sole ProprietorNo
Enumeration DateFebruary 22, 2019
✔ NPI 1609333962 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code103TC0700X
License✔ Licensed in IL · 071.009970
Definition
A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.
111 N WABASH AVE STE 1400, Chicago, IL 60602
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include UnitedHealthcare.Insurance ›

Other Providers at the Same Location NPPES 6

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JESSICA ROSE GENTRY
Counselor (Professional)
111 N WABASH AVE STE 1400
CHICAGO, IL 60602
Cook County (312) 436-1657
AMIRA HUSSIEN MOHAMMED FARRAG PSY.D.
Psychologist (Clinical)
111 N WABASH AVE STE 1400
CHICAGO, IL 60602
Cook County (312) 910-4731
TATIANA-RUTH LEIBMAN
Student in an Organized Health Care Education/Training Program
111 N WABASH AVE STE 1400
CHICAGO, IL 60602
Cook County (312) 436-1657
NATHAN HILL MED, LPC
Counselor (Professional)
111 N WABASH AVE STE 1400
CHICAGO, IL 60602
Cook County (312) 748-6030
TIFFANY CLOMAX
Psychologist (Clinical)
111 N WABASH AVE STE 1400
CHICAGO, IL 60602
Cook County (312) 436-1657
LUIS GERARDO SALAS LCSW
Social Worker (Clinical)
111 N WABASH AVE STE 1400
CHICAGO, IL 60602
Cook County (312) 436-1657

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Nathaniel Sahyouni's NPI number?

The NPI number for Nathaniel Sahyouni is 1609333962. It was assigned to this individual provider in the NPPES registry on February 22, 2019.

Where is Nathaniel Sahyouni located?

Nathaniel Sahyouni practices at 111 N Wabash Ave Ste 1400, Chicago, IL 60602. The listed phone number is (312) 436-1657.

What is Nathaniel Sahyouni's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

What insurance does Nathaniel Sahyouni accept?

Health plans from UnitedHealthcare list Nathaniel Sahyouni as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Nathaniel Sahyouni was last updated on February 22, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.