IndividualActive
Marcelyn Knox, LCSW
NPI 1861768046 · Clinical Social Worker · Valencia, CA
Marcelyn Knox, LCSW is a Clinical Social Worker provider in Valencia, CA (NPI 1861768046).
Provider details
- NPI number
- 1861768046
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- Yes
- License
- LCS 27076 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(80/100 index)
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
25350 Magic Mountain Pkwy Ste 300
Valencia, CA 91355-1356
Phone: (424) 417-8441
Street-level locationGet directions
Mailing address
25350 Magic Mountain Pkwy Ste 300
Valencia, CA 91355-1356
Registry dates
- Enumerated
- 2012-04-01
- Last updated
- 2022-07-21
- Certified
- 2022-07-21
Frequently asked questions
- What is Marcelyn Knox's NPI number?
- Marcelyn Knox's National Provider Identifier (NPI) is 1861768046, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marcelyn Knox's specialty?
- Marcelyn Knox is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Marcelyn Knox located?
- Marcelyn Knox's practice location on file with NPPES is 25350 Magic Mountain Pkwy Ste 300, Valencia, CA 91355-1356.
- What is Marcelyn Knox's phone number?
- The practice phone number listed in the NPPES registry for Marcelyn Knox is (424) 417-8441.
- Is Marcelyn Knox's NPI active?
- Yes — Marcelyn Knox's NPI (1861768046) is active in the NPPES registry as of the last update on 2022-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.