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

BRENNAN JOHNSTON PSYCHOTHERAPY PLLC
NPI 1508777160
Counselor - Mental Health in Clarendon Hills, IL

Q: What is Brennan Johnston Psychotherapy PLLC's NPI number?

The NPI number for Brennan Johnston Psychotherapy PLLC is 1508777160. It was assigned to this organization in the NPPES registry on September 14, 2026.

Q: What is Brennan Johnston Psychotherapy PLLC's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

Active since September 14, 2026

219 55TH ST STE 108, CLARENDON HILLS, IL 60514(847) 204-2037 Get Directions Write a Review

NPPES record added: September 14, 2026. Verified against the NPPES registry weekly; last sync: September 20, 2026.

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About Brennan Johnston Psychotherapy Pllc NPPES

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

BRENNAN JOHNSTON PSYCHOTHERAPY PLLC (NPI 1508777160) is a healthcare organization registered as a mental health in Clarendon Hills, Illinois and active in the NPI registry since September 2026. The organization lists Brennan Johnston, Manager, as its authorized official.

NPPES Registry Identity

NPI1508777160

Entity TypeOrganization

Primary Taxonomy101YM0800X

Legal Business NameBRENNAN JOHNSTON PSYCHOTHERAPY PLLC

Location Address219 55TH ST STE 108Clarendon Hills, IL 60514-1597

Mailing Address276 E Deerpath Ste 428Lake Forest, IL 60045-1940

Phone(847) 204-2037

Organization SubpartNo

Authorized OfficialBrennan JohnstonManager · (847) 204-2037

Enumeration DateSeptember 14, 2026

NPPES CertifiedSeptember 14, 2026

✔ NPI 1508777160 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers

Taxonomy Code101YM0800X

219 55TH ST STE 108, Clarendon Hills, IL 60514

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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Other Providers at the Same Location NPPES

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

SARAH MARGUERITE REYNERTSON LCPC

Counselor (Professional)

219 55TH ST STE 108
CLARENDON HILLS, IL 60514

Dupage County (217) 615-2782

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 Brennan Johnston Psychotherapy PLLC's NPI number?

The NPI number for Brennan Johnston Psychotherapy PLLC is 1508777160. It was assigned to this organization in the NPPES registry on September 14, 2026.

Where is Brennan Johnston Psychotherapy PLLC located?

Brennan Johnston Psychotherapy PLLC is located at 219 55th St Ste 108, Clarendon Hills, IL 60514. The listed phone number is (847) 204-2037.

What is Brennan Johnston Psychotherapy PLLC's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

When was this NPI record last updated?

The NPPES record for Brennan Johnston Psychotherapy PLLC was last updated on September 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.