Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ms. Ellen Schwartz Patterson, MSW LCSW C CA
Social Worker in Towson, MD · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1336259837
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Registry record
Entity type Individual (Type 1)
Name Ms. Ellen Schwartz Patterson
Credential MSW LCSW C CA
Sex Female
Practice address 200 E Joppa Rd, Suite 108, Towson, MD, 21286
Phone (410) 583-9278
Fax (410) 583-9297
Enumeration date Aug 30, 2006
Last updated in NPPES Jul 8, 2007
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
Where does Ellen Patterson practice?
The practice location on file with NPPES is in Towson, MD. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Ellen Patterson?
The National Provider Identifier (NPI) for Ellen Patterson is 1336259837, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.