Registry data as of Aug 27, 2026

Marian House

Marian House holds 9 active organization NPIs in the federal registry, with practice locations in 1 Maryland city. Each location can bill under its own NPI.

CMS NPPES registry, file of Aug 9, 2026 · legal names grouped after punctuation and "LLC" are removed · method · Verify with CMS →

Which NPI is yours?

Search the organization with your city to find the NPI for the location you visit or bill.

Find a location's NPI

Baltimore has the most NPIs, 9

  1. Baltimore9

Source: CMS NPPES monthly file of Aug 9, 2026, organization NPIs by practice city.

Most NPIs were issued in 2017 and 2023

Marian House NPIs by year issued2011: 1, 2012: 0, 2013: 1, 2014: 0, 2015: 0, 2016: 0, 2017: 2, 2018: 0, 2019: 1, 2020: 0, 2021: 0, 2022: 0, 2023: 401234201120132015201720192021202324111
Marian House NPIs by year issued2011: 1, 2012: 0, 2013: 1, 2014: 0, 2015: 0, 2016: 0, 2017: 2, 2018: 0, 2019: 1, 2020: 0, 2021: 0, 2022: 0, 2023: 401234201120122013201420152016201720182019202020212022202324111
Marian House NPIs by year issued2011: 1, 2012: 0, 2013: 1, 2014: 0, 2015: 0, 2016: 0, 2017: 2, 2018: 0, 2019: 1, 2020: 0, 2021: 0, 2022: 0, 2023: 401234201120132015201720192021202324111

Source: CMS NPPES, enumeration dates.

4 NPIs were issued in 2023 alone, more than in any other year; none in 8 of the years between.

Baltimore locations

The city with the most Marian House NPIs. The full list of all 9 follows.

NPILocationPrimary taxonomyIssued
1124304266949 GORSUCH AVE, BaltimoreSubstance Use Disorder Rehabilitation Clinic/CenterNov 2, 2011
1407194277949 GORSUCH AVE, BaltimorePsychiatry PhysicianJan 29, 2013
1679097364949 GORSUCH AVE, BaltimoreCommunity/Behavioral Health AgencyAug 3, 2017
1093232175949 GORSUCH AVE, BaltimoreCommunity/Behavioral Health AgencyAug 29, 2017
1699234203949 GORSUCH AVE, BaltimoreSubstance Abuse Rehabilitation FacilityMar 14, 2019
18217759664105 OLD YORK RD, BaltimoreMental Health Clinic/Center (Including Community Mental Health Center)Jun 30, 2023
18015739364101 OLD YORK RD, BaltimoreSubstance Abuse Rehabilitation FacilityJun 30, 2023
15480475664101 OLD YORK RD, BaltimoreMental Illness Community Based Residential Treatment FacilitySep 12, 2023
All 9 locations, by city
NPILocationPrimary taxonomyIssued
1124304266949 GORSUCH AVE, BaltimoreSubstance Use Disorder Rehabilitation Clinic/CenterNov 2, 2011
1407194277949 GORSUCH AVE, BaltimorePsychiatry PhysicianJan 29, 2013
1679097364949 GORSUCH AVE, BaltimoreCommunity/Behavioral Health AgencyAug 3, 2017
1093232175949 GORSUCH AVE, BaltimoreCommunity/Behavioral Health AgencyAug 29, 2017
1699234203949 GORSUCH AVE, BaltimoreSubstance Abuse Rehabilitation FacilityMar 14, 2019
18217759664105 OLD YORK RD, BaltimoreMental Health Clinic/Center (Including Community Mental Health Center)Jun 30, 2023
18015739364101 OLD YORK RD, BaltimoreSubstance Abuse Rehabilitation FacilityJun 30, 2023
15480475664101 OLD YORK RD, BaltimoreMental Illness Community Based Residential Treatment FacilitySep 12, 2023
16591593414105 OLD YORK RD, BaltimoreMental Illness Community Based Residential Treatment FacilitySep 15, 2023

Checking an organization

  1. Match the NPI to the exact location you will visit or bill; each location can have its own.
  2. Confirm the business entity with the secretary of state.
  3. Check the HHS-OIG exclusion list for the organization and its owners.
  4. Verify each clinician you will see on their own record and with the state license search.

Common questions

Why does Marian House have 9 NPIs?

An organization may obtain more than one Type 2 NPI, for example for separate locations or units that bill on their own. Marian House's NPIs list practice locations in 1 city.

Is an organization NPI a license?

No. An NPI identifies who bills. Facilities and the clinicians who work there are licensed separately by the state.

Source: CMS National Plan and Provider Enumeration System (NPPES), monthly file of Aug 9, 2026 (NPPES files on CMS.gov). An NPI identifies who bills; it is not a license.