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CORNERSTONE MONTGOMERY, INC.
NPI 1073223293
Community/Behavioral Health in Leonardtown, MD

Active since November 29, 2022
41900 FENWICK ST STE 5, LEONARDTOWN, MD 20650(301) 475-9315(301) 475-9317 Get Directions Write a Review

NPPES record last updated: November 29, 2022. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Cornerstone Montgomery, Inc. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

CORNERSTONE MONTGOMERY, INC. (NPI 1073223293) is a healthcare organization registered as a community/behavioral health in Leonardtown, Maryland and active in the NPI registry since November 2022. The organization lists Michael Ostrowski, Billing Manager, as its authorized official.

NPPES Registry Identity

NPI1073223293
Entity TypeOrganization
Primary Taxonomy251S00000X
Legal Business NameCORNERSTONE MONTGOMERY, INC.
Location Address41900 FENWICK ST STE 5Leonardtown, MD 20650-3815
Mailing Address2 Taft Ct Ste 200Rockville, MD 20850-1390 · (301) 715-3673 · Fax (888) 496-8354
Phone(301) 475-9315
Fax(301) 475-9317
Organization SubpartNo
Authorized OfficialMichael OstrowskiBilling Manager · (301) 493-4200
Enumeration DateNovember 29, 2022
NPPES CertifiedNovember 22, 2022
✔ NPI 1073223293 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCommunity/Behavioral HealthAgencies
Taxonomy Code251S00000X
Definition
A private or public agency usually under local government jurisdiction, responsible for assuring the delivery of community based mental health, intellectual disabilities, substance abuse and/or behavioral health services to individuals with those disabilities. Services may range from companion care, respite, transportation, community integration, crisis intervention and stabilization, supported employment, day support, prevocational services, residential support, therapeutic and supportive consultation, environmental modifications, intensive in-home therapy and day treatment, in addition to traditional mental health and behavioral treatment.
41900 FENWICK ST STE 5, Leonardtown, MD 20650
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Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

SOUTHERN MARYLAND COMMUNITY NETWORK, INC
Community Based Residential Treatment Facility, Mental Illness
41900 FENWICK ST STE 5
LEONARDTOWN, MD 20650
St. Mary's County (301) 475-9315
CORNERSTONE MONTGOMERY, INC.
Community/Behavioral Health
41900 FENWICK ST STE 5
LEONARDTOWN, MD 20650
St. Mary's County (301) 475-9315
CORNERSTONE MONTGOMERY, INC.
Community/Behavioral Health
41900 FENWICK ST STE 5
LEONARDTOWN, MD 20650
St. Mary's County (301) 475-9315

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Cornerstone Montgomery, Inc.'s NPI number?

The NPI number for Cornerstone Montgomery, Inc. is 1073223293. It was assigned to this organization in the NPPES registry on November 29, 2022.

Where is Cornerstone Montgomery, Inc. located?

Cornerstone Montgomery, Inc. is located at 41900 Fenwick St Ste 5, Leonardtown, MD 20650. The listed phone number is (301) 475-9315.

What is Cornerstone Montgomery, Inc.'s specialty?

The primary specialty registered for this NPI is Community/Behavioral Health with taxonomy code 251S00000X.

When was this NPI record last updated?

The NPPES record for Cornerstone Montgomery, Inc. was last updated on November 29, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.