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Gruenberg & Summers, P.C.

Q: What type of organization is Gruenberg & Summers, P.C.?

Gruenberg & Summers, P.C. is registered in NPPES as a Psychiatry Physician (its primary provider taxonomy).

Psychiatry Physician in Bryn Mawr, PA · enumerated 2010 · authorized official Alan Gruenberg, President.

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

National Provider Identifier

1093022634

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Registry record

Entity type Organization (Type 2)

Legal business name Gruenberg & Summers, P.C.

Practice address 950 E Haverford Rd, Suite 302, Bryn Mawr, PA, 19010

Phone (610) 527-3201

Fax (610) 527-4628

Enumeration date Sep 2, 2010

Last updated in NPPES Sep 2, 2010

Taxonomy & classification

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License MD034523E (PA) Primary

Authorized official

Name Alan Gruenberg

Title President

Phone (610) 527-3201

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 Gruenberg & Summers, P.C.?

Gruenberg & Summers, P.C. is registered in NPPES as a Psychiatry Physician (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-09-02.