Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Hearthstone P.C.

Q: What type of organization is Hearthstone P.C.?

Hearthstone P.C. is registered in NPPES as a Clinical Psychologist (its primary provider taxonomy).

Clinical Psychologist in La Grange, IL · enumerated 2025 · authorized official Mirjam Quinn, Founder.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1548152358

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Registry record

Entity type Organization (Type 2)

Legal business name Hearthstone P.C.

Practice address 82 S La Grange Rd Ste 205, La Grange, IL, 60525

Phone (708) 316-9500

Enumeration date Jul 16, 2025

Last updated in NPPES Jul 16, 2025

Taxonomy & classification

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers Primary

Authorized official

Name Mirjam Quinn

Title Founder

Phone (708) 539-2917

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is Hearthstone P.C.?

Hearthstone P.C. is registered in NPPES as a Clinical Psychologist (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-07-16.