Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Margaret J Lewis, MS
Audiologist in San Diego, CA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1477585156
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Registry record
Entity type Individual (Type 1)
Name Margaret J Lewis
Credential MS
Sex Female
Practice address 1244 University Ave, San Diego, CA, 92103
Phone (619) 291-0030
Fax (619) 291-0095
Enumeration date Jul 6, 2006
Last updated in NPPES Jan 22, 2009
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 Margaret Lewis?
The National Provider Identifier (NPI) for Margaret Lewis is 1477585156, a Type 1 (individual) record in the CMS NPPES registry.
Where does Margaret Lewis practice?
The practice location on file with NPPES is in San Diego, CA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-01-22.