Rosemarie Messina, LCSW
NPI 1063604163 · Clinical Social Worker · Oakland, CA
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Rosemarie Messina, LCSW is a Clinical Social Worker provider in Oakland, CA (NPI 1063604163).
Provider details
- NPI number
- 1063604163
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- No
- License
- 18994 (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
18 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 5275 Claremont AveOakland, CA 94618-1032Phone: (510) 428-3885
Registry dates
- Enumerated
- 2007-08-13
- Last updated
- 2025-10-06
- Certified
- 2025-10-06
Frequently asked questions
- What is Rosemarie Messina's NPI number?
- Rosemarie Messina's National Provider Identifier (NPI) is 1063604163, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rosemarie Messina's specialty?
- Rosemarie Messina is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Rosemarie Messina located?
- Rosemarie Messina's practice location on file with NPPES is 770 53rd St, Oakland, CA 94609-1814.
- What is Rosemarie Messina's phone number?
- The practice phone number listed in the NPPES registry for Rosemarie Messina is (510) 428-3441.
- Does Rosemarie Messina accept Medicare?
- Rosemarie Messina is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Rosemarie Messina's NPI active?
- Yes — Rosemarie Messina's NPI (1063604163) is active in the NPPES registry as of the last update on 2025-10-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.