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Marian House, Inc.

Substance Use Disorder Rehabilitation Clinic/Center in Baltimore, MD · enumerated 2011 · authorized official Katie Allston, Executive Director.

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

National Provider Identifier

1124304266

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Registry record

Entity type Organization (Type 2)
Legal business name Marian House, Inc.
Practice address 949 Gorsuch Ave, Baltimore, MD, 21218
Phone (410) 467-4121
Fax (410) 467-6709
Enumeration date Nov 2, 2011
Last updated in NPPES Nov 2, 2011

Taxonomy & classification

261QM0801X Mental Health Clinic/Center (Including Community Mental Health Center) Ambulatory Health Care Facilities Secondary
261QR0405X Substance Use Disorder Rehabilitation Clinic/Center Ambulatory Health Care Facilities Primary

Authorized official

Name Katie Allston
Title Executive Director
Phone (410) 467-4121

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

Where is Marian House, Inc. located?
The practice location on file with NPPES is in Baltimore, MD.
How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2011-11-02. Verify at npiregistry.cms.hhs.gov.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-11-02.