Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Cornerstone Montgomery, Inc.

Community/Behavioral Health Agency in Bethesda, MD · enumerated 2006 · authorized official Wilkoff Susan, Utilization Management Director.

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

National Provider Identifier

1588769947

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Registry record

Entity type Organization (Type 2)

Legal business name Cornerstone Montgomery, Inc.

Practice address 6040 Southport Dr, Bethesda, MD, 20814

Phone (301) 493-4200

Fax (301) 493-6209

Enumeration date Sep 13, 2006

Last updated in NPPES Jul 21, 2022

Taxonomy & classification

251S00000X Community/Behavioral Health Agency Agencies Primary

Authorized official

Name Wilkoff Susan

Title Utilization Management Director

Phone (301) 493-4200

Other identifiers

Identifier	Type	State	Issuer
588181100	Medicaid	MD	-
717035000	Other	MD	BCBS CRISIS SERVICE #

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.

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Frequently asked questions

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2022-07-21. Verify at npiregistry.cms.hhs.gov.

Where is Cornerstone Montgomery, Inc. located?

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

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-21.