NPPES file of Aug 9, 2026

Ellen T. Trojnar, MS

Marriage & Family Therapist · Fullerton, CA

Ellen T. Trojnar, MS is a marriage & family therapist with a practice address in Fullerton, California, and NPI 1578501284, issued on Jun 3, 2006. Check the license (California MFC25197, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1578501284
Name
Ellen T. Trojnar
Credential
MS
Primary taxonomy
Marriage & Family Therapist 106H00000X
License numbers
MFC25197 CA
25197 CA
Self-reported in NPPES; status is on the state search
Practice location
198 E Whiting Ave, Fullerton, CA 92832
Phone
(714) 626-0535
Enumerated
Jun 3, 2006
Record last updated
Mar 18, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(714) 526-5336
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest marriage & family therapist records → All 59,889 in California → Look up another NPI →

Also registered at 198 E Whiting Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Beatriz Lopez, PHDClinical Psychologist1588903652
  2. Jocelyne Shiromoto, M.S.W., L.C.S.WClinical Social Worker1922118371

Verify Ellen T. Trojnar in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license MFC25197    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

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Ellen T. Trojnar among 59,889 marriage & family therapist records in California

Ellen T. Trojnar, MS is one of 59,889 marriage & family therapist records with a practice address in California. 4% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than under 1% of them.

  • NPI issued2006 · under 1% of these records are older, 93% newer
  • In a Medicare fileNo · 4% of these records are
  • In the CMS Doctors and Clinicians fileNo · 8% of these records are
  • Record last updated2008 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 106H00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

263 marriage & family therapist records list a practice address in Fullerton

They are 263 of the 5,437 NPPES records with a practice address in Fullerton, and 59,889 marriage & family therapist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 59,889 in California → Every provider in Fullerton → Marriage & Family Therapist nationwide →

The 8 marriage & family therapist records with the nearest ZIP codes

  1. Mary Bermani, MFTFullerton, CA 928321538282157
  2. Claudia DesachyFullerton, CA 928321629100722
  3. Dawn Foster-Ogle, LMFTFullerton, CA 928321548334832
  4. Ana Gallardo, M.S.Fullerton, CA 928321538245543
  5. Tiffany Green, LICENSED MARRIAGE ANFullerton, CA 928321568590909
  6. Jenny Potzler, M.F.T.Fullerton, CA 928321013931260
  7. Keri Prather, LMFTFullerton, CA 928321992870372
  8. Michael Russell, M.A. MFT, INTERNFullerton, CA 928321639269400

Common questions

What is Ellen T. Trojnar, MS's NPI number?

Ellen T. Trojnar, MS's National Provider Identifier (NPI) is 1578501284, issued on Jun 3, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Ellen T. Trojnar, MS located?

The NPPES record lists a practice address at 198 E Whiting Ave, Fullerton, CA, 92832. Phone: (714) 626-0535. Providers update this record themselves, so call before visiting.

How can I verify Ellen T. Trojnar, MS's license?

NPPES lists California license number MFC25197, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.