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Main Line Mental Health LLC

Q: What type of organization is Main Line Mental Health LLC?

Main Line Mental Health LLC is registered in NPPES as a Psychiatry Physician (its primary provider taxonomy).

Psychiatry Physician in Haverford, PA · enumerated 2011 · authorized official Jonathan Shack, Single Member LLC.

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

National Provider Identifier

1083908388

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Registry record

Entity type Organization (Type 2)

Legal business name Main Line Mental Health LLC

Practice address 349 Lancaster Ave, Suite 103, Haverford, PA, 19041

Phone (610) 945-5259

Fax (610) 664-7061

Enumeration date Jun 3, 2011

Last updated in NPPES Jun 3, 2011

Taxonomy & classification

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License MD04514OL (PA) Primary

Authorized official

Name Jonathan Shack

Title Single Member LLC

Phone (610) 945-5259

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 Main Line Mental Health LLC?

Main Line Mental Health LLC is registered in NPPES as a Psychiatry Physician (its primary provider taxonomy).

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-06-03.