Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Catherine Day Lewis, P.A.

Physician Assistant in Woodland, CA · enumerated 2007.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1720124423

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Registry record

Entity type Individual (Type 1)

Name Catherine Day Lewis

Credential P.A.

Sex Female

Practice address 2081 Bronze Star Dr, Woodland, CA, 95776

Phone (530) 668-2600

Fax (530) 661-1081

Enumeration date Jan 29, 2007

Last updated in NPPES Feb 11, 2019

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 11994 (CA) Primary

PA · Physician Assistant: A licensed clinician who practices medicine in collaboration with physicians, trained in a graduate PA program. About the PA credential

Other identifiers

Identifier	Type	State	Issuer
010162	Medicaid	CA	-

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Catherine Lewis practice?

The practice location on file with NPPES is in Woodland, CA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Catherine Lewis?

The National Provider Identifier (NPI) for Catherine Lewis is 1720124423, 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 2019-02-11.