Masako Stewart, M.A.
NPI 1831264712 · Marriage & Family Therapist · La Mesa, CA
Masako Stewart, M.A. is a Marriage & Family Therapist provider in La Mesa, CA (NPI 1831264712).
Provider details
- NPI number
- 1831264712
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- M.A.
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Mental Health Counselor101YM0800X
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
19 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
- 2006-11-23
- Last updated
- 2012-09-26
Frequently asked questions
- What is Masako Stewart's NPI number?
- Masako Stewart's National Provider Identifier (NPI) is 1831264712, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Masako Stewart's specialty?
- Masako Stewart is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Masako Stewart located?
- Masako Stewart's practice location on file with NPPES is 5480 Baltimore Dr, La Mesa, CA 91942-2020.
- What is Masako Stewart's phone number?
- The practice phone number listed in the NPPES registry for Masako Stewart is (619) 239-4663.
- Is Masako Stewart's NPI active?
- Yes — Masako Stewart's NPI (1831264712) is active in the NPPES registry as of the last update on 2012-09-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.