IndividualActive
Gisselle Santellan
NPI 1265225155 · School Counselor · Hayward, CA
Gisselle Santellan is a School Counselor provider in Hayward, CA (NPI 1265225155).
Provider details
- NPI number
- 1265225155
- Entity type
- Individual
- Primary specialty
- School CounselorBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Basic profile(48/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
1 yr 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
951 Palisade St
Hayward, CA 94542-1048
Phone: (510) 370-3334
Street-level locationGet directions
Mailing address
951 Palisade St
Hayward, CA 94542-1048
Registry dates
- Enumerated
- 2025-05-23
- Last updated
- 2025-05-23
- Certified
- 2025-05-23
Frequently asked questions
- What is Gisselle Santellan's NPI number?
- Gisselle Santellan's National Provider Identifier (NPI) is 1265225155, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gisselle Santellan's specialty?
- Gisselle Santellan is listed in the NPPES registry with a primary specialty of School Counselor (Behavioral Health & Social Service Providers).
- Where is Gisselle Santellan located?
- Gisselle Santellan's practice location on file with NPPES is 951 Palisade St, Hayward, CA 94542-1048.
- What is Gisselle Santellan's phone number?
- The practice phone number listed in the NPPES registry for Gisselle Santellan is (510) 370-3334.
- Is Gisselle Santellan's NPI active?
- Yes — Gisselle Santellan's NPI (1265225155) is active in the NPPES registry as of the last update on 2025-05-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.