Marci Sinclair
NPI 1235327602 · Addiction (Substance Use Disorder) Counselor · Tarzana, CA
Marci Sinclair is a Addiction (Substance Use Disorder) Counselor provider in Tarzana, CA (NPI 1235327602).
Provider details
- NPI number
- 1235327602
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- 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
18 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
- 2007-10-10
- Last updated
- 2007-10-10
Frequently asked questions
- What is Marci Sinclair's NPI number?
- Marci Sinclair's National Provider Identifier (NPI) is 1235327602, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marci Sinclair's specialty?
- Marci Sinclair is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Marci Sinclair located?
- Marci Sinclair's practice location on file with NPPES is 18646 Oxnard St, Tarzana, CA 91356-1411.
- What is Marci Sinclair's phone number?
- The practice phone number listed in the NPPES registry for Marci Sinclair is (818) 996-1051.
- Is Marci Sinclair's NPI active?
- Yes — Marci Sinclair's NPI (1235327602) is active in the NPPES registry as of the last update on 2007-10-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.