Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Marissa Morris, LSW
Social Worker in York, PA · enumerated 2016.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1669921383
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Registry record
Entity type Individual (Type 1)
Name Marissa Morris
Credential LSW
Sex Female
Practice address 239 W Philadelphia St, York, PA, 17401
Phone (717) 845-2425
Enumeration date Sep 22, 2016
Last updated in NPPES Sep 22, 2016
Taxonomy & licenses
104100000X Social Worker Behavioral Health & Social Service Providers · License SW133907 (PA) 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.
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 Marissa Morris?
Marissa Morris 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 → Community Counseling Services LLC Psychiatry Physician · York, PA NPI 1437252517 T. W. Ponessa and Associates Counseling Services, Inc. Community/Behavioral Health Agency · York, PA NPI 1962792879 Kristen Bambule Professional Counselor · York, PA NPI 1518398429 Jessica Lowry Clinical Social Worker · York, PA NPI 1609262609
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-09-22.