NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Ms. Lisa Mathews, RD, IBCLC

Lactation Consultant (Non-RN) in Sacramento, CA · enumerated 2019.

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

National Provider Identifier

1184268435

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Registry record

Entity type Individual (Type 1)
Name Ms. Lisa Mathews
Credential RD, IBCLC
Sex Female
Practice address Sacramento, CA, 95838
Phone (916) 875-2133
Enumeration date Oct 30, 2019
Last updated in NPPES Oct 30, 2019

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

174N00000X Lactation Consultant (Non-RN) Other Service Providers Primary
133V00000X Registered Dietitian Dietary & Nutritional Service Providers Secondary
RD · Registered Dietitian: A nutrition professional credentialed by the Commission on Dietetic Registration. About the RD credential

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 Lisa Mathews practice?
The practice location on file with NPPES is in Sacramento, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Lisa Mathews?
The National Provider Identifier (NPI) for Lisa Mathews is 1184268435, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-10-30.