John Delgrosso, M.F.T.
NPI 1255666061 · Marriage & Family Therapist · Brea, CA
John Delgrosso, M.F.T. is a Marriage & Family Therapist provider in Brea, CA (NPI 1255666061).
Provider details
- NPI number
- 1255666061
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- M.F.T.
- Sex
- Male
- Sole proprietor
- No
- License
- 37013 (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
16 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
- 2009-10-13
- Last updated
- 2009-10-13
Frequently asked questions
- What is John Delgrosso's NPI number?
- John Delgrosso's National Provider Identifier (NPI) is 1255666061, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Delgrosso's specialty?
- John Delgrosso is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is John Delgrosso located?
- John Delgrosso's practice location on file with NPPES is 915 W Imperial Hwy, Brea, CA 92821-3835.
- What is John Delgrosso's phone number?
- The practice phone number listed in the NPPES registry for John Delgrosso is (800) 968-6329.
- Is John Delgrosso's NPI active?
- Yes — John Delgrosso's NPI (1255666061) is active in the NPPES registry as of the last update on 2009-10-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.