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David Day, LMFT
NPI 1477409332 · Marriage & Family Therapist · Tustin, CA
David Day, LMFT is a Marriage & Family Therapist provider in Tustin, CA (NPI 1477409332).
Provider details
- NPI number
- 1477409332
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- LMFT
- Sex
- Male
- Sole proprietor
- Yes
- License
- 143223 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(53/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in 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
515 E 1st St Ste D
Tustin, CA 92780-3335
Phone: (949) 226-6100
Street-level locationGet directions
Mailing address
8562 Salt Lake Dr
Huntington Beach, CA 92646-3227
Registry dates
- Enumerated
- 2026-03-04
- Last updated
- 2026-03-04
- Certified
- 2026-03-04
Frequently asked questions
- What is David Day's NPI number?
- David Day's National Provider Identifier (NPI) is 1477409332, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Day's specialty?
- David Day is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is David Day located?
- David Day's practice location on file with NPPES is 515 E 1st St Ste D, Tustin, CA 92780-3335.
- What is David Day's phone number?
- The practice phone number listed in the NPPES registry for David Day is (949) 226-6100.
- Is David Day's NPI active?
- Yes — David Day's NPI (1477409332) is active in the NPPES registry as of the last update on 2026-03-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.