Sonia Blumberg, B.A., M.S.
NPI 1528757309 · Case Manager/Care Coordinator · Santa Cruz, CA
Sonia Blumberg, B.A., M.S. is a Case Manager/Care Coordinator provider in Santa Cruz, CA (NPI 1528757309).
Provider details
- NPI number
- 1528757309
- Entity type
- Individual
- Primary specialty
- Case Manager/Care CoordinatorOther Service Providers
- Credential
- B.A., M.S.
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Other Service Providers
- Mental Health Counselor101YM0800X
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
3 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
- 2023-05-05
- Last updated
- 2023-09-06
- Certified
- 2023-09-06
Frequently asked questions
- What is Sonia Blumberg's NPI number?
- Sonia Blumberg's National Provider Identifier (NPI) is 1528757309, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sonia Blumberg's specialty?
- Sonia Blumberg is listed in the NPPES registry with a primary specialty of Case Manager/Care Coordinator (Other Service Providers).
- Where is Sonia Blumberg located?
- Sonia Blumberg's practice location on file with NPPES is 380 Encinal St Ste 200, Santa Cruz, CA 95060-2178.
- What is Sonia Blumberg's phone number?
- The practice phone number listed in the NPPES registry for Sonia Blumberg is (831) 469-1700.
- Is Sonia Blumberg's NPI active?
- Yes — Sonia Blumberg's NPI (1528757309) is active in the NPPES registry as of the last update on 2023-09-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.