TENACITY PSYCHOLOGICAL SERVICES, LLC
NPI 1619530185
Psychologist - Clinical in Chicago, IL

Q: What is Tenacity Psychological Services, LLC's NPI number?

The NPI number for Tenacity Psychological Services, LLC is 1619530185. It was assigned to this organization in the NPPES registry on April 19, 2019.

Q: What is Tenacity Psychological Services, LLC's specialty?

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

Active since April 19, 2019

8 S MICHIGAN AVE STE 1500, CHICAGO, IL 60603(872) 808-0285(872) 804-2525 Get Directions Write a Review

NPPES record last updated: February 6, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Feb 6, 2026, Feb 27, 2023, Apr 20, 2021 and 3 more (6 updates tracked since 2019).

On this page

About Tenacity Psychological Services, Llc NPPES

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

TENACITY PSYCHOLOGICAL SERVICES, LLC (NPI 1619530185) is a healthcare organization registered as a clinical in Chicago, Illinois and active in the NPI registry since April 2019. The organization lists Josiah James Miller, Owner, as its authorized official.

NPPES Registry Identity

NPI1619530185

Entity TypeOrganization

Primary Taxonomy103TC0700X

Legal Business NameTENACITY PSYCHOLOGICAL SERVICES, LLC

Location Address8 S MICHIGAN AVE STE 1500Chicago, IL 60603-3362

Mailing Address8 S Michigan Ave Ste 1500Chicago, IL 60603-3362 · (872) 808-0285 · Fax (872) 804-2525

Phone(872) 808-0285

Fax(872) 804-2525

Organization SubpartNo

Authorized OfficialJosiah James MillerOwner · (872) 808-0285

Enumeration DateApril 19, 2019

Last NPPES UpdateFebruary 6, 20266 updates tracked since enumeration

NPPES CertifiedFebruary 6, 2026

✔ NPI 1619530185 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 9

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers

Taxonomy Code103TC0700X

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.

Also ListedPsychologistTaxonomy 103T00000X

Also ListedPsychologist · CounselingTaxonomy 103TC1900X

Also ListedPsychologist · Clinical Child & AdolescentTaxonomy 103TC2200X

Also ListedPsychologist · FamilyTaxonomy 103TF0000X

Also ListedPsychologist · HealthTaxonomy 103TH0004X

Also ListedPsychologist · Health ServiceTaxonomy 103TH0100X

Also ListedPsychologist · Group PsychotherapyTaxonomy 103TP2701X

Also ListedClinic/Center · Mental Health (Including Community Mental Health Center)Taxonomy 261QM0801X

8 S MICHIGAN AVE STE 1500, Chicago, IL 60603

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Other Identifiers 1

Medicaid523478244001IL

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Home State Health, Ambetter Health, Ambetter Health of Delaware.Insurance ›

Other Providers at the Same Location NPPES 3

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

DR. JOSIAH JAMES MILLER PSYD

Psychologist (Clinical)

8 S MICHIGAN AVE STE 1500
CHICAGO, IL 60603

Cook County (872) 808-0285

MARY JEAN SELBY LCPC

Counselor (Professional)

8 S MICHIGAN AVE STE 1500
CHICAGO, IL 60603

Cook County (312) 630-9663

KELSEY ANNE BADURINA

Counselor (Professional)

8 S MICHIGAN AVE STE 1500
CHICAGO, IL 60603

Cook County (872) 808-0285

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 Tenacity Psychological Services, LLC's NPI number?

The NPI number for Tenacity Psychological Services, LLC is 1619530185. It was assigned to this organization in the NPPES registry on April 19, 2019.

Where is Tenacity Psychological Services, LLC located?

Tenacity Psychological Services, LLC is located at 8 S Michigan Ave Ste 1500, Chicago, IL 60603. The listed phone number is (872) 808-0285.

What is Tenacity Psychological Services, LLC's specialty?

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

What insurance does Tenacity Psychological Services, LLC accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Home State Health list Tenacity Psychological Services, LLC 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 Tenacity Psychological Services, LLC was last updated on February 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months 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.