Marion Hilsinger, LCSW
NPI 1265104053 · Clinical Social Worker · Oakland, CA
Marion Hilsinger, LCSW is a Clinical Social Worker provider in Oakland, CA (NPI 1265104053).
Provider details
- NPI number
- 1265104053
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- No
- License
- 137819 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Student, Health Care
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
4 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
- 2021-09-30
- Last updated
- 2026-03-31
- Certified
- 2026-03-31
Frequently asked questions
- What is Marion Hilsinger's NPI number?
- Marion Hilsinger's National Provider Identifier (NPI) is 1265104053, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marion Hilsinger's specialty?
- Marion Hilsinger is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Marion Hilsinger located?
- Marion Hilsinger's practice location on file with NPPES is 1030 International Blvd, Oakland, CA 94606-3730.
- What is Marion Hilsinger's phone number?
- The practice phone number listed in the NPPES registry for Marion Hilsinger is (510) 238-5400.
- Is Marion Hilsinger's NPI active?
- Yes — Marion Hilsinger's NPI (1265104053) is active in the NPPES registry as of the last update on 2026-03-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.