Maria Fiduk, LCSW
NPI 1558828905 · Clinical Social Worker · Bellflower, CA
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maria Fiduk, LCSW is a Clinical Social Worker provider in Bellflower, CA (NPI 1558828905).
Provider details
- NPI number
- 1558828905
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Mental Health Counselor101YM0800X
Behavioral Health & Social Service Providers
- Clinical Social Worker1041C0700X
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
7 yrs in NPPES registry
- Profile completeness38% of score
83% 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)
- 200 W Santa Ana Blvd Ste 801Santa Ana, CA 92701Phone: (714) 704-5900
Registry dates
- Enumerated
- 2019-02-21
- Last updated
- 2023-08-10
- Certified
- 2023-08-10
Frequently asked questions
- What is Maria Fiduk's NPI number?
- Maria Fiduk's National Provider Identifier (NPI) is 1558828905, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maria Fiduk's specialty?
- Maria Fiduk is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Maria Fiduk located?
- Maria Fiduk's practice location on file with NPPES is 17800 Woodruff Ave, Bellflower, CA 90706-7079.
- What is Maria Fiduk's phone number?
- The practice phone number listed in the NPPES registry for Maria Fiduk is (562) 866-8500.
- Does Maria Fiduk accept Medicare?
- Maria Fiduk is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maria Fiduk's NPI active?
- Yes — Maria Fiduk's NPI (1558828905) is active in the NPPES registry as of the last update on 2023-08-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.