Carol Marasigan
NPI 1649459819 · Social Worker · Fremont, CA
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Carol Marasigan is a Social Worker provider in Fremont, CA (NPI 1649459819).
Provider details
- NPI number
- 1649459819
- Entity type
- Individual
- Primary specialty
- Social WorkerBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
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
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
- 2007-10-24
- Last updated
- 2007-10-24
Frequently asked questions
- What is Carol Marasigan's NPI number?
- Carol Marasigan's National Provider Identifier (NPI) is 1649459819, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Carol Marasigan's specialty?
- Carol Marasigan is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).
- Where is Carol Marasigan located?
- Carol Marasigan's practice location on file with NPPES is 2296 Country Dr, Fremont, CA 94536-5315.
- What is Carol Marasigan's phone number?
- The practice phone number listed in the NPPES registry for Carol Marasigan is (510) 797-9299.
- Does Carol Marasigan accept Medicare?
- Carol Marasigan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Carol Marasigan's NPI active?
- Yes — Carol Marasigan's NPI (1649459819) is active in the NPPES registry as of the last update on 2007-10-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.