NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Main Line Day, LLC

Mental Health Clinic/Center (Including Community Mental Health Center) in Wayne, PA · enumerated 2016 · authorized official Bonnie Silverberg, Office Manager/Owner.

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

National Provider Identifier

1316494958

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Main Line Day, LLC
Practice address 487 Devon Park Drive, Suite 207, Wayne, PA, 19087
Enumeration date Sep 1, 2016
Last updated in NPPES Feb 20, 2017

Taxonomy & classification

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers Secondary
103TP0016X Prescribing (Medical) Psychologist Behavioral Health & Social Service Providers Secondary
103TP2701X Group Psychotherapy Psychologist Behavioral Health & Social Service Providers Secondary
261QM0801X Mental Health Clinic/Center (Including Community Mental Health Center) Ambulatory Health Care Facilities Primary

Authorized official

Name Bonnie Silverberg
Title Office Manager/Owner

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 Day, LLC?
Main Line Day, LLC is registered in NPPES as a Mental Health Clinic/Center (Including Community Mental Health Center) (its primary provider taxonomy).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-02-20.