Ellen Trojnar, MS
NPI 1578501284 · Marriage & Family Therapist · Fullerton, CA
Ellen Trojnar, MS is a Marriage & Family Therapist provider in Fullerton, CA (NPI 1578501284).
Provider details
- NPI number
- 1578501284
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- MS
- Sex
- Female
- Sole proprietor
- Yes
- License
- MFC25197 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
20 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
- 2006-06-03
- Last updated
- 2008-03-18
Frequently asked questions
- What is Ellen Trojnar's NPI number?
- Ellen Trojnar's National Provider Identifier (NPI) is 1578501284, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ellen Trojnar's specialty?
- Ellen Trojnar is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Ellen Trojnar located?
- Ellen Trojnar's practice location on file with NPPES is 198 E Whiting Ave, Fullerton, CA 92832.
- What is Ellen Trojnar's phone number?
- The practice phone number listed in the NPPES registry for Ellen Trojnar is (714) 626-0535.
- Is Ellen Trojnar's NPI active?
- Yes — Ellen Trojnar's NPI (1578501284) is active in the NPPES registry as of the last update on 2008-03-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.