Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

MARILYN WILLIAMS
NPI 1689598120
Counselor in Oak Lawn, IL

Q: What is Marilyn Williams's NPI number?

The NPI number for Marilyn Williams is 1689598120. It was assigned to this individual provider in the NPPES registry on August 6, 2026.

Q: What is Marilyn Williams's specialty?

The primary specialty registered for this NPI is Counselor with taxonomy code 101Y00000X.

Q: When was this NPI record last updated?

The NPPES record for Marilyn Williams was last updated on August 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 days 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.

Active since August 06, 2026

9249 S CICERO AVE UNIT 909, OAK LAWN, IL 60454(773) 603-1606 Get Directions Write a Review

NPPES record added: August 6, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Marilyn Williams NPPES

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

MARILYN WILLIAMS (NPI 1689598120) is an individual counselor in Oak Lawn, Illinois and active in the NPI registry since August 2026.

NPPES Registry Identity

NPI1689598120

Entity TypeIndividualFemale

Primary Taxonomy101Y00000X

Provider Legal NameMARILYN WILLIAMS

Location Address9249 S CICERO AVE UNIT 909Oak Lawn, IL 60454-4941

Mailing Address9249 S Cicero Ave Unit 909Oak Lawn, IL 60454-4941 · (773) 603-1606

Phone(773) 603-1606

Sole ProprietorNo

Enumeration DateAugust 6, 2026

NPPES CertifiedAugust 6, 2026

✔ NPI 1689598120 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselorBehavioral Health & Social Service Providers

Taxonomy Code101Y00000X

Definition

A provider who is trained and educated in the performance of behavior health services through interpersonal communications and analysis. Training and education at the specialty level usually requires a master's degree and clinical experience and supervision for licensure or certification.

9249 S CICERO AVE UNIT 909, Oak Lawn, IL 60454

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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 Marilyn Williams's NPI number?

The NPI number for Marilyn Williams is 1689598120. It was assigned to this individual provider in the NPPES registry on August 6, 2026.

Where is Marilyn Williams located?

Marilyn Williams practices at 9249 S Cicero Ave Unit 909, Oak Lawn, IL 60454. The listed phone number is (773) 603-1606.

What is Marilyn Williams's specialty?

The primary specialty registered for this NPI is Counselor with taxonomy code 101Y00000X.

When was this NPI record last updated?

The NPPES record for Marilyn Williams was last updated on August 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 days 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.