Tiffany Wilder-Holden, SUDRC
NPI 1255034468 · Addiction (Substance Use Disorder) Counselor · Castro Valley, CA
Tiffany Wilder-Holden, SUDRC is a Addiction (Substance Use Disorder) Counselor provider in Castro Valley, CA (NPI 1255034468).
Provider details
- NPI number
- 1255034468
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Credential
- SUDRC
- 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
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
- 2023-03-24
- Last updated
- 2025-06-25
- Certified
- 2025-06-25
Frequently asked questions
- What is Tiffany Wilder-Holden's NPI number?
- Tiffany Wilder-Holden's National Provider Identifier (NPI) is 1255034468, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tiffany Wilder-Holden's specialty?
- Tiffany Wilder-Holden is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Tiffany Wilder-Holden located?
- Tiffany Wilder-Holden's practice location on file with NPPES is 15480 Foothill Blvd, Castro Valley, CA 94578-1009.
- What is Tiffany Wilder-Holden's phone number?
- The practice phone number listed in the NPPES registry for Tiffany Wilder-Holden is (510) 346-7836.
- Is Tiffany Wilder-Holden's NPI active?
- Yes — Tiffany Wilder-Holden's NPI (1255034468) is active in the NPPES registry as of the last update on 2025-06-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.