What is Diya Alhayek's NPI number?

Diya Alhayek's National Provider Identifier (NPI) is 1528990744, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Diya Alhayek's specialty?

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

Where is Diya Alhayek located?

Diya Alhayek's practice location on file with NPPES is 1624 Orangewood Ave, Upland, CA 91784-1763.

What is Diya Alhayek's phone number?

The practice phone number listed in the NPPES registry for Diya Alhayek is (708) 983-3425.

Is Diya Alhayek's NPI active?

Yes — Diya Alhayek's NPI (1528990744) is active in the NPPES registry as of the last update on 2026-06-01.

IndividualActive

Diya Alhayek, RN

NPI 1528990744 · Registered Nurse · Upland, CA

Diya Alhayek, RN is a Registered Nurse provider in Upland, CA (NPI 1528990744).

Provider details

NPI number: 1528990744
Entity type: Individual
Primary specialty: Registered NurseNursing Service Providers
Credential: RN
Sex: Male
Sole proprietor: No
License: 95235878 (CA)

Specialties & taxonomies

Registered NursePrimary163W00000XLicense 95235878 (CA)
Nursing Service Providers

Profile Score

Established profile(52/100 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

1624 Orangewood Ave

Upland, CA 91784-1763

Phone: (708) 983-3425

Street-level locationGet directions

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Mailing address