What is Kathryn Clark's NPI number?

Kathryn Clark's National Provider Identifier (NPI) is 1285580050, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Kathryn Clark's specialty?

Kathryn Clark is listed in the NPPES registry with a primary specialty of Oncology Registered Nurse (Nursing Service Providers).

Where is Kathryn Clark located?

Kathryn Clark's practice location on file with NPPES is 6555 Coyle Ave Ste 301, Carmichael, CA 95608-0303.

What is Kathryn Clark's phone number?

The practice phone number listed in the NPPES registry for Kathryn Clark is (916) 962-1544.

Is Kathryn Clark's NPI active?

Yes — Kathryn Clark's NPI (1285580050) is active in the NPPES registry as of the last update on 2026-03-05.

IndividualActive

Kathryn Clark, RN

NPI 1285580050 · Oncology Registered Nurse · Carmichael, CA

Kathryn Clark, RN is a Oncology Registered Nurse provider in Carmichael, CA (NPI 1285580050).

Provider details

NPI number: 1285580050
Entity type: Individual
Primary specialty: Oncology Registered NurseNursing Service Providers
Credential: RN
Sex: Female
Sole proprietor: No
License: 95421706 (CA)

Specialties & taxonomies

Oncology Registered NursePrimary163WX0200XLicense 95421706 (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

6555 Coyle Ave Ste 301

Carmichael, CA 95608-0303

Phone: (916) 962-1544

Street-level locationGet directions

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Mailing address