Gillian Loy, MFTI
NPI 1861780835 · Marriage & Family Therapist · Santa Ana, CA
Gillian Loy, MFTI is a Marriage & Family Therapist provider in Santa Ana, CA (NPI 1861780835).
Provider details
- NPI number
- 1861780835
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- MFTI
- Sex
- Female
- Sole proprietor
- No
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
14 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
- 2011-07-12
- Last updated
- 2013-08-30
Frequently asked questions
- What is Gillian Loy's NPI number?
- Gillian Loy's National Provider Identifier (NPI) is 1861780835, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gillian Loy's specialty?
- Gillian Loy is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Gillian Loy located?
- Gillian Loy's practice location on file with NPPES is 3611 S Harbor Blvd Ste 100, Santa Ana, CA 92704-7915.
- What is Gillian Loy's phone number?
- The practice phone number listed in the NPPES registry for Gillian Loy is (909) 347-9269.
- Is Gillian Loy's NPI active?
- Yes — Gillian Loy's NPI (1861780835) is active in the NPPES registry as of the last update on 2013-08-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.