Karen Alvarado
NPI 1871372474 · Registered Nurse · Oakland, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Alvarado is a Registered Nurse provider in Oakland, CA (NPI 1871372474).
Provider details
- NPI number
- 1871372474
- Entity type
- Individual
- Primary specialty
- Registered NurseNursing Service Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- RN95298872 (CA)
Specialties & taxonomies
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
2 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
Mailing address
Registry dates
- Enumerated
- 2023-09-25
- Last updated
- 2023-09-25
- Certified
- 2023-09-22
Frequently asked questions
- What is Karen Alvarado's NPI number?
- Karen Alvarado's National Provider Identifier (NPI) is 1871372474, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Alvarado's specialty?
- Karen Alvarado is listed in the NPPES registry with a primary specialty of Registered Nurse (Nursing Service Providers).
- Where is Karen Alvarado located?
- Karen Alvarado's practice location on file with NPPES is 2920 International Blvd, Oakland, CA 94601-2228.
- What is Karen Alvarado's phone number?
- The practice phone number listed in the NPPES registry for Karen Alvarado is (510) 485-5925.
- Does Karen Alvarado accept Medicare?
- Karen Alvarado is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Alvarado's NPI active?
- Yes — Karen Alvarado's NPI (1871372474) is active in the NPPES registry as of the last update on 2023-09-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.