What is Mary Ryken's NPI number?

Mary Ryken's National Provider Identifier (NPI) is 1023581766, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Mary Ryken's specialty?

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

Where is Mary Ryken located?

Mary Ryken's practice location on file with NPPES is 2269 Vegas Ave, Castro Valley, CA 94546-6358.

What is Mary Ryken's phone number?

The practice phone number listed in the NPPES registry for Mary Ryken is (510) 693-4586.

Is Mary Ryken's NPI active?

Yes — Mary Ryken's NPI (1023581766) is active in the NPPES registry as of the last update on 2019-01-04.

IndividualActive

Mary Ryken, RN

NPI 1023581766 · Registered Nurse · Castro Valley, CA

Mary Ryken, RN is a Registered Nurse provider in Castro Valley, CA (NPI 1023581766).

Provider details

NPI number: 1023581766
Entity type: Individual
Primary specialty: Registered NurseNursing Service Providers
Credential: RN
Sex: Female
Sole proprietor: Yes
License: 271315 (CA)

Specialties & taxonomies

Registered NursePrimary163W00000XLicense 271315 (CA)
Nursing Service Providers

Profile Score

Established profile(67/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
7 yrs in NPPES 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

2269 Vegas Ave

Castro Valley, CA 94546-6358

Phone: (510) 693-4586

Street-level locationGet directions

More CA providers

Mailing address