Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Reuben Rosen, LMSW

Q: What is the NPI number for Reuben Rosen?

The National Provider Identifier (NPI) for Reuben Rosen is 1073110615, a Type 1 (individual) record in the CMS NPPES registry.

Clinical Social Worker in Kensington, MD · enumerated 2020.

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

National Provider Identifier

1073110615

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Registry record

Entity type Individual (Type 1)

Name Reuben Rosen

Credential LMSW

Sex Male

Practice address 3930 Knowles Ave Ste 200, Kensington, MD, 20895

Phone (240) 801-5843

Enumeration date Oct 6, 2020

Last updated in NPPES Oct 6, 2020

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 26430 (MD) Primary

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

Where does Reuben Rosen practice?

The practice location on file with NPPES is in Kensington, MD. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Reuben Rosen?

The National Provider Identifier (NPI) for Reuben Rosen is 1073110615, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-10-06.