Mark Souris, PSYD
NPI 1003098427 · Clinical Psychologist · Woodland Hills, CA
Mark Souris, PSYD is a Clinical Psychologist provider in Woodland Hills, CA (NPI 1003098427).
Provider details
- NPI number
- 1003098427
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PSYD
- Sex
- Male
- Sole proprietor
- Yes
- License
- PSY14283 (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
18 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
- 2007-11-27
- Last updated
- 2016-11-17
Frequently asked questions
- What is Mark Souris's NPI number?
- Mark Souris's National Provider Identifier (NPI) is 1003098427, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Souris's specialty?
- Mark Souris is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Mark Souris located?
- Mark Souris's practice location on file with NPPES is 21243 Ventura Blvd, Woodland Hills, CA 91364-2109.
- What is Mark Souris's phone number?
- The practice phone number listed in the NPPES registry for Mark Souris is (818) 635-9705.
- Is Mark Souris's NPI active?
- Yes — Mark Souris's NPI (1003098427) is active in the NPPES registry as of the last update on 2016-11-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.