Lauren Onderko
NPI 1821434408 · Mental Health Counselor · San Leandro, CA
Lauren Onderko is a Mental Health Counselor provider in San Leandro, CA (NPI 1821434408).
Provider details
- NPI number
- 1821434408
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Counselor101Y00000X
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
13 yrs in NPPES 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
Mailing address
Registry dates
- Enumerated
- 2013-05-22
- Last updated
- 2015-12-01
Frequently asked questions
- What is Lauren Onderko's NPI number?
- Lauren Onderko's National Provider Identifier (NPI) is 1821434408, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lauren Onderko's specialty?
- Lauren Onderko is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Lauren Onderko located?
- Lauren Onderko's practice location on file with NPPES is 2275 Arlington Dr, San Leandro, CA 94578-1132.
- What is Lauren Onderko's phone number?
- The practice phone number listed in the NPPES registry for Lauren Onderko is (510) 317-1444.
- Is Lauren Onderko's NPI active?
- Yes — Lauren Onderko's NPI (1821434408) is active in the NPPES registry as of the last update on 2015-12-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.