Tonia Stephens, MSW
NPI 1558852335 · Addiction (Substance Use Disorder) Counselor · Orange, CA
Tonia Stephens, MSW is a Addiction (Substance Use Disorder) Counselor provider in Orange, CA (NPI 1558852335).
Provider details
- NPI number
- 1558852335
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Credential
- MSW
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
8 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
- 2018-05-28
- Last updated
- 2018-05-28
Frequently asked questions
- What is Tonia Stephens's NPI number?
- Tonia Stephens's National Provider Identifier (NPI) is 1558852335, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tonia Stephens's specialty?
- Tonia Stephens is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Tonia Stephens located?
- Tonia Stephens's practice location on file with NPPES is 4202 N Sunset St, Orange, CA 92865-1421.
- What is Tonia Stephens's phone number?
- The practice phone number listed in the NPPES registry for Tonia Stephens is (714) 561-1978.
- Is Tonia Stephens's NPI active?
- Yes — Tonia Stephens's NPI (1558852335) is active in the NPPES registry as of the last update on 2018-05-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.