Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

MS. MARY LOU PETTY MSW LCSW
NPI 1598747461
Social Worker - Clinical in Chicago, IL

Active since November 16, 2005
30 N MICHIGAN AVE, STE 1004, CHICAGO, IL 60602(312) 236-4364 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: July 19, 2026.

About Ms. Mary Lou Petty Msw Lcsw NPPES

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

MS. MARY LOU PETTY MSW LCSW (NPI 1598747461) is an individual clinical provider in Chicago, Illinois and active in the NPI registry since November 2005.

NPPES Registry Identity

NPI1598747461
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameMS. MARY LOU PETTYCredential: MSW LCSW
Location Address30 N MICHIGAN AVE, STE 1004Chicago, IL 60602-3402
Mailing Address30 N Michigan Ave, Ste 1004Chicago, IL 60602-3402 · (312) 236-4364
Sole ProprietorNo
Enumeration DateNovember 16, 2005
Last NPPES UpdateJuly 13, 2026
NPI 1598747461 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
Definition

A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.

30 N MICHIGAN AVE, Chicago, IL 60602

Other Names 1

Other Name (5)Mary Lou Trezise

Other Identifiers 4

Other0005983663Aetna
Other190629Value Options
Other5906676720United Behavioral Health
Other01673624IL · Bcbs

Other Providers at the Same Location NPPES 20

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

Psychologist (Psychoanalysis)
30 N MICHIGAN AVE, SUITE 1900
CHICAGO, IL 60602
Obstetrics & Gynecology
30 N MICHIGAN AVE, SUITE 1410
CHICAGO, IL 60602
Marriage & Family Therapist
30 N MICHIGAN AVE, SUITE 1514
CHICAGO, IL 60602
Psychologist (Clinical)
30 N MICHIGAN AVE, SUITE 506
CHICAGO, IL 60602
Dentist (General Practice)
30 N MICHIGAN AVE, STE. 1821
CHICAGO, IL 60602
Psychologist (Clinical)
30 N MICHIGAN AVE, SUITE 1206
CHICAGO, IL 60602
Podiatrist
30 N MICHIGAN AVE, SUITE 1229
CHICAGO, IL 60602
Social Worker (Clinical)
30 N MICHIGAN AVE, SUITE 1618
CHICAGO, IL 60602

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1598747461, enumerated as an "individual" on November 16, 2005.

The provider is located at 30 N MICHIGAN AVE STE 1004 CHICAGO, IL 60602 and the phone number is (312) 236-4364.

Social Worker with taxonomy code 1041C0700X and a focus in Clinical.

The provider might be accepting Accepts: Aetna, Medicare, Medicaid and Blue Cross Blue. Please consult your insurance carrier or call the provider to verify.