What is Regina Williams's NPI number?

Regina Williams's National Provider Identifier (NPI) is 1871430058, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Regina Williams's specialty?

Regina Williams is listed in the NPPES registry with a primary specialty of Registered Nurse (Nursing Service Providers).

Where is Regina Williams located?

Regina Williams's practice location on file with NPPES is 1700 S Amphlett Blvd Ste 120, San Mateo, CA 94402-2711.

What is Regina Williams's phone number?

The practice phone number listed in the NPPES registry for Regina Williams is (650) 683-2190.

Is Regina Williams's NPI active?

Yes — Regina Williams's NPI (1871430058) is active in the NPPES registry as of the last update on 2026-05-04.

IndividualActive

Regina Williams, RN

NPI 1871430058 · Registered Nurse · San Mateo, CA

Regina Williams, RN is a Registered Nurse provider in San Mateo, CA (NPI 1871430058).

Provider details

NPI number: 1871430058
Entity type: Individual
Primary specialty: Registered NurseNursing Service Providers
Credential: RN
Sex: Female
Sole proprietor: No
License: 95329901 (CA)

Specialties & taxonomies

Registered NursePrimary163W00000XLicense 95329901 (CA)
Nursing Service Providers

Profile Score

Established profile(53/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
Under 1 yr in registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Practice location

1700 S Amphlett Blvd Ste 120

San Mateo, CA 94402-2711

Phone: (650) 683-2190

Street-level locationGet directions

More CA providers

Mailing address