Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ms. Lauren Losak, LCSW - C
Social Worker in Rockville, MD · enumerated 2018.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1750858239
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Registry record
Entity type Individual (Type 1)
Name Ms. Lauren Losak
Credential LCSW - C
Sex Female
Practice address 15204 Omega Drive, Suite 200, Rockville, MD, 20850
Phone (301) 279-6750
Fax (301) 208-8953
Enumeration date Nov 1, 2018
Last updated in NPPES Jun 2, 2021
Taxonomy & licenses
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.
Frequently asked questions
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Lauren Losak?
Lauren Losak is registered in NPPES with the primary taxonomy of Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-06-02.