Marissa Hartson, AMFT
NPI 1235937632 · Marriage & Family Therapist · Costa Mesa, CA
Marissa Hartson, AMFT is a Marriage & Family Therapist provider in Costa Mesa, CA (NPI 1235937632).
Provider details
- NPI number
- 1235937632
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- AMFT
- Sex
- Female
- Sole proprietor
- No
- License
- 153503 (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
1 yr 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
- 2025-03-04
- Last updated
- 2025-03-04
- Certified
- 2025-03-03
Frequently asked questions
- What is Marissa Hartson's NPI number?
- Marissa Hartson's National Provider Identifier (NPI) is 1235937632, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marissa Hartson's specialty?
- Marissa Hartson is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Marissa Hartson located?
- Marissa Hartson's practice location on file with NPPES is 2900 Bristol St, Costa Mesa, CA 92626-5981.
- What is Marissa Hartson's phone number?
- The practice phone number listed in the NPPES registry for Marissa Hartson is (949) 436-7367.
- Is Marissa Hartson's NPI active?
- Yes — Marissa Hartson's NPI (1235937632) is active in the NPPES registry as of the last update on 2025-03-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.