1. Home
  2. Directory
  3. California
  4. Laguna Hills
  5. Marriage Family Therapist
  6. NPI Profile

MISS MARY J MOSIER MS, LMFT
NPI 1477916609
Marriage & Family Therapist in Laguna Hills, CA

Active since April 04, 2016PECOS EnrolledAccepts Medicare Assignment
24321 AVENIDA DE LA CARLOTA, LAGUNA HILLS, CA 92653(949) 204-3006(949) 389-2001 Get Directions Write a Review

NPPES record last updated: December 6, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Dec 6, 2023, Oct 11, 2023, Jul 21, 2022 and 3 more (6 updates tracked since 2018).

About Miss Mary J Mosier Ms, Lmft NPPES

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

MISS MARY J MOSIER MS, LMFT (NPI 1477916609) is an individual marriage & family therapist in Laguna Hills, California, licensed in California (109948) and active in the NPI registry since April 2016. She is enrolled in Medicare PECOS and is a graduate of Other (2015).

NPPES Registry Identity

NPI1477916609
Entity TypeIndividualFemale
Primary Taxonomy106H00000X
Provider Legal NameMISS MARY J MOSIERCredential: MS, LMFT
Location Address24321 AVENIDA DE LA CARLOTALaguna Hills, CA 92653-3681
Mailing Address24321 Avenida De La CarlotaLaguna Hills, CA 92653-3681 · (949) 204-3006 · Fax (949) 389-2001
Phone(949) 204-3006
Fax(949) 389-2001
Sole ProprietorNo
Medical School CMSOtherGraduated 2015
Enumeration DateApril 4, 2016
Last NPPES UpdateDecember 6, 20236 updates tracked since enumeration
NPPES CertifiedDecember 6, 2023
✔ NPI 1477916609 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyMarriage & Family TherapistBehavioral Health & Social Service Providers
Taxonomy Code106H00000X
License✔ Licensed in CA · 109948
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.
24321 AVENIDA DE LA CARLOTA, Laguna Hills, CA 92653
Open in Google Maps ↗

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Miss Mary J Mosier Ms, Lmft is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8820440902
PECOS Enrollment IDI20240115001558
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Mary Mosier reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Providence Medical Foundation
3.7 mi
Family Medicine
26522 LA ALAMEDA, SUITE 120
Mission Viejo, CA 92691
  • Reassigned Medicare billing, California enrollment
  • 1,699 clinicians in this Medicare group
NPI 1427305960 (949) 364-9631

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 3

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

YAMA AHMAD AFSHAR DO, MPH
Internal Medicine
24321 AVENIDA DE LA CARLOTA
LAGUNA HILLS, CA 92653
Orange County (949) 204-3006
DR. ANGELA PHAM BASEN MD
Internal Medicine
24321 AVENIDA DE LA CARLOTA
LAGUNA HILLS, CA 92653
Orange County (949) 204-3006
BERNARD ELPEDES DO
Family Medicine
24321 AVENIDA DE LA CARLOTA
LAGUNA HILLS, CA 92653
Orange County (949) 204-3006

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 Mary Mosier's NPI number?

The NPI number for Mary Mosier is 1477916609. It was assigned to this individual provider in the NPPES registry on April 4, 2016.

Where is Mary Mosier located?

Mary Mosier practices at 24321 Avenida De La Carlota, Laguna Hills, CA 92653. The listed phone number is (949) 204-3006.

What is Mary Mosier's specialty?

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

Is Mary Mosier enrolled in Medicare?

Yes. Mary Mosier is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Mary Mosier's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mary Mosier reassigns Medicare benefits to Providence Medical Foundation (Mission Viejo, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mary Mosier's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Mary Mosier was last updated on December 6, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years 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.