Diane Gell, LMFT
NPI 1699074641 · Marriage & Family Therapist · Ontario, CA
Diane Gell, LMFT is a Marriage & Family Therapist provider in Ontario, CA (NPI 1699074641).
Provider details
- NPI number
- 1699074641
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- LMFT
- Sex
- Female
- Sole proprietor
- No
- License
- 49489 (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
15 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
- 2011-03-16
- Last updated
- 2018-07-05
Frequently asked questions
- What is Diane Gell's NPI number?
- Diane Gell's National Provider Identifier (NPI) is 1699074641, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diane Gell's specialty?
- Diane Gell is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Diane Gell located?
- Diane Gell's practice location on file with NPPES is 855 N Euclid Ave, Ontario, CA 91762.
- What is Diane Gell's phone number?
- The practice phone number listed in the NPPES registry for Diane Gell is (909) 983-2020.
- Is Diane Gell's NPI active?
- Yes — Diane Gell's NPI (1699074641) is active in the NPPES registry as of the last update on 2018-07-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.