What is James Siems's NPI number?

James Siems's National Provider Identifier (NPI) is 1558206680, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is James Siems's specialty?

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

Where is James Siems located?

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

What is James Siems's phone number?

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

Is James Siems's NPI active?

Yes — James Siems's NPI (1558206680) is active in the NPPES registry as of the last update on 2026-04-23.

IndividualActive

James Siems

NPI 1558206680 · Personal Care Attendant · Las Vegas, NV

James Siems is a Personal Care Attendant provider in Las Vegas, NV (NPI 1558206680).

Provider details

NPI number: 1558206680
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(46/100 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