Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Katherine Walker, MSW
Social Worker in York, PA · enumerated 2012.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1831445204
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Registry record
Entity type Individual (Type 1)
Name Katherine Walker
Credential MSW
Sex Female
Practice address 1500 Memory Lane Ext, York, PA, 17402
Phone (717) 757-5433
Enumeration date Aug 3, 2012
Last updated in NPPES Aug 3, 2012
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
What is the NPI number for Katherine Walker?
The National Provider Identifier (NPI) for Katherine Walker is 1831445204, a Type 1 (individual) record in the CMS NPPES registry.
Where does Katherine Walker practice?
The practice location on file with NPPES is in York, PA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Rebecca Buchinski Occupational Therapist · York, PA NPI 1851584676 Julia Gallagher Social Worker · York, PA NPI 1790031169 Kimberly Slack Registered Dietitian · York, PA NPI 1609122076 Emmy Sauerwein Registered Nurse · York, PA NPI 1588910962 Catherine Wolf Registered Nurse · York, PA NPI 1700132198 Carla Palm Registered Nurse · York, PA NPI 1740536119 Lourdes Navas Registered Nurse · York, PA NPI 1821334079 Sarah Peters Speech-Language Pathologist · York, PA NPI 1043556129
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-08-03.