Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Katherine Sonia, PA-C
Physician Assistant in Lynn, MA · enumerated 2021.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1578235859
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Registry record
Entity type Individual (Type 1)
Name Katherine Sonia
Credential PA-C
Sex Female
Practice address 269 Union St, Lynn, MA, 01901
Phone (781) 581-3900
Enumeration date Oct 4, 2021
Last updated in NPPES Apr 22, 2026
Taxonomy & licenses
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA9088 (MA) 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 NPI 1578235859 active?
Yes, as of the latest NPPES snapshot, NPI 1578235859 is active (record last updated 2026-04-22).
How do I verify Katherine Sonia's NPI record?
Cross-check NPI 1578235859 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all → Melinda Jones Nurse Practitioner · Lynn, MA NPI 1033111711 Katherine Rosenfield Family Medicine Physician · Lynn, MA NPI 1073599221 Cynthia Moore Pediatric Nurse Practitioner · Lynn, MA NPI 1346209897 Gallaudet Howard Family Nurse Practitioner · Lynn, MA NPI 1730149113 Eileen Fisk Pediatrics Physician · Lynn, MA NPI 1588601199 Patrick Lee Internal Medicine Physician · Lynn, MA NPI 1740208164 Nicholas Mayper Family Medicine Physician · Lynn, MA NPI 1861505000 Angela Schrank Social Worker · Lynn, MA NPI 1396859864
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-04-22.