What is Mary Williams's NPI number?

Mary Williams's National Provider Identifier (NPI) is 1164374294, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Mary Williams's specialty?

Mary Williams is listed in the NPPES registry with a primary specialty of Personal Care Attendant (Nursing Service Related Providers).

Where is Mary Williams located?

Mary Williams's practice location on file with NPPES is 4245 S Grand Canyon Dr, Las Vegas, NV 89147-7161.

What is Mary Williams's phone number?

The practice phone number listed in the NPPES registry for Mary Williams is (702) 825-8106.

Is Mary Williams's NPI active?

Yes — Mary Williams's NPI (1164374294) is active in the NPPES registry as of the last update on 2026-02-11.

IndividualActive

Mary Williams

NPI 1164374294 · Personal Care Attendant · Las Vegas, NV

Mary Williams is a Personal Care Attendant provider in Las Vegas, NV (NPI 1164374294).

Provider details

NPI number: 1164374294
Entity type: Individual
Primary specialty: Personal Care AttendantNursing Service Related Providers
Sex: Female
Sole proprietor: No

Specialties & taxonomies

Personal Care AttendantPrimary3747P1801X
Nursing Service Related Providers

Profile Score

Basic profile(47/100 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
83% 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

4245 S Grand Canyon Dr

Las Vegas, NV 89147-7161

Phone: (702) 825-8106

Street-level locationGet directions

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Mailing address