Shellagh Marshall-Young, CAS II
NPI 1013290253 · Addiction (Substance Use Disorder) Counselor · Orange, CA
Shellagh Marshall-Young, CAS II is a Addiction (Substance Use Disorder) Counselor provider in Orange, CA (NPI 1013290253).
Provider details
- NPI number
- 1013290253
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Credential
- CAS II
- Sex
- Male
- Sole proprietor
- Yes
- License
- 01-040566 (CA)
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
14 yrs in NPPES registry
- Profile completeness38% of score
100% 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
- 2011-09-23
- Last updated
- 2011-09-23
Frequently asked questions
- What is Shellagh Marshall-Young's NPI number?
- Shellagh Marshall-Young's National Provider Identifier (NPI) is 1013290253, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Shellagh Marshall-Young's specialty?
- Shellagh Marshall-Young is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Shellagh Marshall-Young located?
- Shellagh Marshall-Young's practice location on file with NPPES is 812 W Town and Country Rd, Orange, CA 92868-4712.
- What is Shellagh Marshall-Young's phone number?
- The practice phone number listed in the NPPES registry for Shellagh Marshall-Young is (714) 547-6494.
- Is Shellagh Marshall-Young's NPI active?
- Yes — Shellagh Marshall-Young's NPI (1013290253) is active in the NPPES registry as of the last update on 2011-09-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.