Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Jeffrey Lee Mueller, LCSW-C

Clinical Social Worker in Rockville, MD · enumerated 2016.

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

National Provider Identifier

1306299094

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Registry record

Entity type Individual (Type 1)

Name Jeffrey Lee Mueller

Credential LCSW-C

Sex Male

Practice address 1500 E Gude Dr, Rockville, MD, 20850

Phone (240) 777-1720

Fax (240) 777-3381

Enumeration date Jul 18, 2016

Last updated in NPPES Aug 12, 2025

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 20354 (MD) Primary

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License 20354 (MD) Secondary

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

How do I verify Jeffrey Mueller's NPI record?

Cross-check NPI 1306299094 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1306299094 active?

Yes, as of the latest NPPES snapshot, NPI 1306299094 is active (record last updated 2025-08-12).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-08-12.