Registry data as of Aug 27, 2026

Genesis Treatment Services

Genesis Treatment Services holds 6 active organization NPIs in the federal registry, with practice locations in 2 Maryland cities. 4 list methadone clinic as their primary taxonomy; 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

Frederick has the most NPIs, 3

  1. Frederick3
  2. Westminster3

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

Most NPIs were issued in 2008 and 2018

Genesis Treatment Services NPIs by year issued2008: 1, 2009: 1, 2010: 0, 2011: 0, 2012: 0, 2013: 0, 2014: 1, 2015: 0, 2016: 0, 2017: 0, 2018: 2, 2019: 0, 2020: 100.511.52200820102012201420162018202012111
Genesis Treatment Services NPIs by year issued2008: 1, 2009: 1, 2010: 0, 2011: 0, 2012: 0, 2013: 0, 2014: 1, 2015: 0, 2016: 0, 2017: 0, 2018: 2, 2019: 0, 2020: 100.511.52200820092010201120122013201420152016201720182019202012111
Genesis Treatment Services NPIs by year issued2008: 1, 2009: 1, 2010: 0, 2011: 0, 2012: 0, 2013: 0, 2014: 1, 2015: 0, 2016: 0, 2017: 0, 2018: 2, 2019: 0, 2020: 100.511.52200820102012201420162018202012111

Source: CMS NPPES, enumeration dates.

2 NPIs were issued in 2018 alone, more than in any other year; none in 8 of the years between.

Frederick locations

The city with the most Genesis Treatment Services NPIs. The full list of all 6 follows.

NPILocationPrimary taxonomyIssued
11942958401160 W PATRICK ST, FrederickMethadone ClinicNov 26, 2018
18710636851160 W PATRICK ST, FrederickMental Health Clinic/Center (Including Community Mental Health Center)Dec 5, 2018
15387891361160 W PATRICK ST, FrederickMethadone ClinicApr 23, 2020
All 6 locations, by city
NPILocationPrimary taxonomyIssued
11942958401160 W PATRICK ST, FrederickMethadone ClinicNov 26, 2018
18710636851160 W PATRICK ST, FrederickMental Health Clinic/Center (Including Community Mental Health Center)Dec 5, 2018
15387891361160 W PATRICK ST, FrederickMethadone ClinicApr 23, 2020
10030712261106 BUSINESS PKWY S SUITE B, WestminsterMethadone ClinicJul 28, 2008
14272995101106 BUSINESS PARKWAY SOUTH SUITE B, WestminsterMethadone ClinicMar 19, 2009
17709802451106 BUSINESS PKWY S STE B, WestminsterMental Health Clinic/Center (Including Community Mental Health Center)Dec 1, 2014

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 Genesis Treatment Services have 6 NPIs?

An organization may obtain more than one Type 2 NPI, for example for separate locations or units that bill on their own. Genesis Treatment Services's NPIs list practice locations in 2 cities.

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.