Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum Organization subpart

Cornerstone Montgomery, Inc.

Community/Behavioral Health Agency in Rockville, MD · enumerated 2015 · authorized official Gwendolyn Zecha, Cfo.

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

National Provider Identifier

1851763494

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Registry record

Entity type Organization (Type 2)

Legal business name Cornerstone Montgomery, Inc.

Parent organization Cornerstone Montgomery, Inc.

Practice address 2 Taft Ct, A, Rockville, MD, 20850

Phone (301) 493-4200

Fax (888) 496-8354

Enumeration date Oct 22, 2015

Last updated in NPPES Jan 30, 2017

Taxonomy & classification

251S00000X Community/Behavioral Health Agency Agencies · License MH-2205 (MD) Primary

Authorized official

Name Gwendolyn Zecha

Title Cfo

Phone (301) 896-4262

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

Where is Cornerstone Montgomery, Inc. located?

The practice location on file with NPPES is in Rockville, MD.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2017-01-30. Verify at npiregistry.cms.hhs.gov.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-01-30.