Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Cornerstone Montgomery, Inc

Organization Community/Behavioral Health Agency · NPI 1992343370

Cornerstone Montgomery, Inc is a Community/Behavioral Health Agency in Bethesda, Maryland. Registered with an NPI since 2019.

In the registry since
2019
What do these letters mean?
Inc — Incorporated
A form of business registration, not a clinical qualification.

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Practice location Address checks out

6040 Southport Dr
Bethesda, MD 20814-1848
Phone: (301) 493-4200
Fax: (888) 496-8354
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Community/Behavioral Health Agency (primary) Taxonomy 251S00000X

Record details

NPI number1992343370
Entity typeOrganization (Type 2)
Organization subpartYes
Parent organizationCornerstone Montgomery, Inc
Authorized official Michael Ostrowski — Billing Supervisor · (301) 493-4200
NPI enumeratedDecember 16, 2019
Last updated in NPPESDecember 16, 2019
Certification dateDecember 16, 2019
Mailing address6040 Southport Dr, Bethesda, MD 20814-1848

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