Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Riverside Treatment Services LLC

Methadone Clinic in Rosedale, MD · enumerated 2016 · authorized official Charles Watson, Director.

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

National Provider Identifier

1801258736

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Registry record

Entity type Organization (Type 2)

Legal business name Riverside Treatment Services LLC

Practice address 8359 Pulaski Highway, Rosedale, MD, 21237

Phone (443) 841-2598

Enumeration date Mar 21, 2016

Last updated in NPPES Mar 21, 2016

Taxonomy & classification

261QM2800X Methadone Clinic Ambulatory Health Care Facilities Primary

Authorized official

Name Charles Watson

Title Director

Phone (443) 841-2598

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is Riverside Treatment Services LLC?

Riverside Treatment Services LLC is registered in NPPES as a Methadone Clinic (its primary provider taxonomy).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-03-21.