Daria Sievers, LCSW
NPI 1407291859 · Clinical Social Worker · San Rafael, CA
Daria Sievers, LCSW is a Clinical Social Worker provider in San Rafael, CA (NPI 1407291859).
Provider details
- NPI number
- 1407291859
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- Yes
- License
- LCS10253 (CA)
Specialties & taxonomies
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
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
- 2013-04-29
- Last updated
- 2013-04-29
Frequently asked questions
- What is Daria Sievers's NPI number?
- Daria Sievers's National Provider Identifier (NPI) is 1407291859, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Daria Sievers's specialty?
- Daria Sievers is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Daria Sievers located?
- Daria Sievers's practice location on file with NPPES is 1368 Lincoln Ave, San Rafael, CA 94901-2147.
- What is Daria Sievers's phone number?
- The practice phone number listed in the NPPES registry for Daria Sievers is (415) 302-9130.
- Is Daria Sievers's NPI active?
- Yes — Daria Sievers's NPI (1407291859) is active in the NPPES registry as of the last update on 2013-04-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.