MONTGOMERY COUNTY MARYLAND GOVERNMENT
NPI 1811394075
Clinic/Center - Rehabilitation, Substance Use Disorder in Rockville, MD
About Montgomery County Maryland Government NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MONTGOMERY COUNTY MARYLAND GOVERNMENT (NPI 1811394075), doing business as Outpatient Addictions Services, is a healthcare organization registered as a rehabilitation, substance use disorder in Rockville, Maryland and active in the NPI registry since December 2014. The organization lists Diana Azucena Cortez, Mangament, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 3
Other Names 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Montgomery County Maryland Government is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
73Medicare enrollment records show 73 clinicians reassign Medicare billing to Montgomery County Maryland Government, which bills Medicare for the services they deliver. Of these, 4 practice at this address and 43 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 9
Nearest to this location (20)
See all 73Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Montgomery County Maryland Government's NPI number?
The NPI number for Montgomery County Maryland Government is 1811394075. It was assigned to this organization in the NPPES registry on December 3, 2014. The provider is doing business as Outpatient Addictions Services.
Where is Montgomery County Maryland Government located?
Montgomery County Maryland Government is located at 1500 E Gude Dr, Rockville, MD 20850. The listed phone number is (240) 777-1671.
What is Montgomery County Maryland Government's specialty?
The primary specialty registered for this NPI is Clinic/Center, specializing in Rehabilitation, Substance Use Disorder, with taxonomy code 261QR0405X.
Is Montgomery County Maryland Government enrolled in Medicare?
Yes. Montgomery County Maryland Government is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Montgomery County Maryland Government?
According to the CMS Revalidation Reassignment List (October 2026 release), 73 clinicians in 9 Medicare specialties reassign their Medicare billing to Montgomery County Maryland Government. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Clinical Social Worker (36), Mental Health Counselor (13) and Nurse Practitioner (13). Of these, 4 practice at this address and 43 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Montgomery County Maryland Government was last updated on September 18, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months 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.
# Montgomery County Maryland Government · NPI 1811394075
Rehabilitation, Substance Use Disorder organization in Rockville, Maryland. Organization record, active in the CMS NPPES registry since December 3, 2014.
## Identity
- **NPI:** 1811394075 (Entity type: Organization)
- **Enumerated:** December 3, 2014
- **Primary specialty:** Clinic/Center - Rehabilitation, Substance Use Disorder · taxonomy 261QR0405X
- **Also known as:** Outpatient Addictions Services (Doing Business As)
- **Organization subpart:** Yes (part of Montgomery County Maryland Government)
- **Authorized official:** Diana Cortez, MANGAMENT
## Practice location
- **Address:** 1500 E GUDE DR, Rockville, MD 20850-5307
- **Phone:** (240) 777-1671
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 73 clinicians in 9 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Clinical Social Worker (36), Mental Health Counselor (13), Nurse Practitioner (13); 4 practice at this address and 43 within 10 miles; [full list](https://npiprofile.com/npi/1811394075/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** September 18, 2025
---
Source: [NPI Profile](https://npiprofile.com/npi/1811394075) · Data from the CMS NPPES public registry.