1. Home
  2. Directory
  3. California
  4. Los Angeles
  5. Marriage Family Therapist
  6. NPI Profile

MR. TROY MARDEROSIAN
NPI 1669045043
Marriage & Family Therapist in Los Angeles, CA

Active since July 22, 2021
840 N AVENUE 66, LOS ANGELES, CA 90042(626) 395-7100 Get Directions Write a Review

NPPES record last updated: March 18, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Mar 18, 2026, Dec 12, 2024, Nov 8, 2024 and 2 more (5 updates tracked since 2021).

About Mr. Troy Marderosian NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MR. TROY MARDEROSIAN (NPI 1669045043) is an individual marriage & family therapist in Los Angeles, California and active in the NPI registry since July 2021.

NPPES Registry Identity

NPI1669045043
Entity TypeIndividualMale
Primary Taxonomy106H00000X
Provider Legal NameMR. TROY MARDEROSIAN
Location Address840 N AVENUE 66Los Angeles, CA 90042-1508
Mailing Address840 N Avenue 66Los Angeles, CA 90042-1508 · (626) 395-7100
Phone(626) 395-7100
Sole ProprietorNo
Enumeration DateJuly 22, 2021
Last NPPES UpdateMarch 18, 20265 updates tracked since enumeration
NPPES CertifiedMarch 18, 2026
✔ NPI 1669045043 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyMarriage & Family TherapistBehavioral Health & Social Service Providers
Taxonomy Code106H00000X
Definition
A marriage and family therapist is a person with a master's degree in marriage and family therapy, or a master's or doctoral degree in a related mental health field with substantially equivalent coursework in marriage and family therapy, who receives supervised clinical experience, or a person who meets the state requirements to practice as a marriage and family therapist. A marriage and family therapist treats mental and emotional disorders within the context of marriage and family systems. A marriage and family therapist provides mental health and counseling services to individuals, couples, families, and groups.
Also ListedRehabilitation PractitionerTaxonomy 225400000X
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
840 N AVENUE 66, Los Angeles, CA 90042
Open in Google Maps ↗

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. JENNIE M. MATHESS PSY.D.
Psychologist (Clinical)
840 N AVENUE 66
LOS ANGELES, CA 90042
Los Angeles County (626) 395-7100
RUBY A GARCIA LPT
Licensed Psychiatric Technician
840 N AVENUE 66
LOS ANGELES, CA 90042
Los Angeles County (626) 395-7100
ALICIA GUERRA
Rehabilitation Practitioner
840 N AVENUE 66
LOS ANGELES, CA 90042
Los Angeles County (626) 395-7100
MS. ROMINA MONSERRAT TEJEDA LMFT
Marriage & Family Therapist
840 N AVENUE 66
LOS ANGELES, CA 90042
Los Angeles County (626) 395-7100
MARISSA LEE LUBAG
Peer Specialist
840 N AVENUE 66
LOS ANGELES, CA 90042
Los Angeles County (626) 395-7100
MAYRA MELGOZA
Social Worker (Clinical)
840 N AVENUE 66
LOS ANGELES, CA 90042
Los Angeles County (626) 395-7100
EVELYN AVILA
Social Worker
840 N AVENUE 66
LOS ANGELES, CA 90042
Los Angeles County (626) 395-7100
MALIYA GUERCY
Licensed Psychiatric Technician
840 N AVENUE 66
LOS ANGELES, CA 90042
Los Angeles County (626) 395-7100

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Troy Marderosian's NPI number?

The NPI number for Troy Marderosian is 1669045043. It was assigned to this individual provider in the NPPES registry on July 22, 2021.

Where is Troy Marderosian located?

Troy Marderosian practices at 840 N Avenue 66, Los Angeles, CA 90042. The listed phone number is (626) 395-7100.

What is Troy Marderosian's specialty?

The primary specialty registered for this NPI is Marriage & Family Therapist with taxonomy code 106H00000X.

When was this NPI record last updated?

The NPPES record for Troy Marderosian was last updated on March 18, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.