Sonia Guilfoos, MSW
NPI 1861763518 · Clinical Social Worker · San Bernardino, CA
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sonia Guilfoos, MSW is a Clinical Social Worker provider in San Bernardino, CA (NPI 1861763518).
Provider details
- NPI number
- 1861763518
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- MSW
- Sex
- Female
- Sole proprietor
- Yes
- License
- 76910 (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
14 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
- 2012-01-25
- Last updated
- 2017-05-30
Frequently asked questions
- What is Sonia Guilfoos's NPI number?
- Sonia Guilfoos's National Provider Identifier (NPI) is 1861763518, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sonia Guilfoos's specialty?
- Sonia Guilfoos is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Sonia Guilfoos located?
- Sonia Guilfoos's practice location on file with NPPES is 1950 Sunwest Ln, San Bernardino, CA 92415-0019.
- What is Sonia Guilfoos's phone number?
- The practice phone number listed in the NPPES registry for Sonia Guilfoos is (909) 252-4010.
- Does Sonia Guilfoos accept Medicare?
- Sonia Guilfoos is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sonia Guilfoos's NPI active?
- Yes — Sonia Guilfoos's NPI (1861763518) is active in the NPPES registry as of the last update on 2017-05-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.