What is Mark Washington's NPI number?

Mark Washington's National Provider Identifier (NPI) is 1538031117, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Mark Washington's specialty?

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

Where is Mark Washington located?

Mark Washington's practice location on file with NPPES is 400 S 4th St Ste 500, Las Vegas, NV 89101-6207.

What is Mark Washington's phone number?

The practice phone number listed in the NPPES registry for Mark Washington is (702) 765-0983.

Is Mark Washington's NPI active?

Yes — Mark Washington's NPI (1538031117) is active in the NPPES registry as of the last update on 2025-09-22.

IndividualActive

Mark Washington

NPI 1538031117 · Personal Care Attendant · Las Vegas, NV

Mark Washington is a Personal Care Attendant provider in Las Vegas, NV (NPI 1538031117).

Provider details

NPI number: 1538031117
Entity type: Individual
Primary specialty: Personal Care AttendantNursing Service Related Providers
Sex: Male
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

400 S 4th St Ste 500

Las Vegas, NV 89101-6207

Phone: (702) 765-0983

Street-level locationGet directions

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Mailing address