Christina Marrero-Howieson, PSY.D.
NPI 1639329469 · Clinical Psychologist · Santa Monica, CA
Christina Marrero-Howieson, PSY.D. is a Clinical Psychologist provider in Santa Monica, CA (NPI 1639329469).
Provider details
- NPI number
- 1639329469
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PSY.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- DMH WAIVER (CA)
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
17 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
- 2008-09-29
- Last updated
- 2022-07-21
Frequently asked questions
- What is Christina Marrero-Howieson's NPI number?
- Christina Marrero-Howieson's National Provider Identifier (NPI) is 1639329469, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christina Marrero-Howieson's specialty?
- Christina Marrero-Howieson is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Christina Marrero-Howieson located?
- Christina Marrero-Howieson's practice location on file with NPPES is 2510 Main St., Suite 201, Santa Monica, CA 90405.
- What is Christina Marrero-Howieson's phone number?
- The practice phone number listed in the NPPES registry for Christina Marrero-Howieson is (424) 346-2745.
- Is Christina Marrero-Howieson's NPI active?
- Yes — Christina Marrero-Howieson's NPI (1639329469) 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.