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MONICA YOUSSEF
NPI 1265297436
Speech-Language Pathologist in Mission Viejo, CA

Active since February 16, 2024Accepts Medicare Assignment
21 MIRINO DR, MISSION VIEJO, CA 92692(949) 769-9981 Get Directions Write a Review

NPPES record last updated: October 25, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Monica Youssef NPPES

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

MONICA YOUSSEF (NPI 1265297436) is an individual speech-language pathologist provider in Mission Viejo, California, licensed in California (35564) and active in the NPI registry since February 2024. She is a graduate of Other (2024).

NPPES Registry Identity

NPI1265297436
Entity TypeIndividualFemale
Primary Taxonomy235Z00000X
Provider Legal NameMONICA YOUSSEF
Location Address21 MIRINO DRMission Viejo, CA 92692-5101
Mailing Address21 Mirino DrMission Viejo, CA 92692-5101
Phone(949) 769-9981
Sole ProprietorNo
Medical School CMSOtherGraduated 2024
Enumeration DateFebruary 16, 2024
Last NPPES UpdateOctober 25, 2024
NPPES CertifiedFebruary 16, 2024
✔ NPI 1265297436 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpeech-Language PathologistSpeech, Language and Hearing Service Providers
Taxonomy Code235Z00000X
License✔ Licensed in CA · 35564
Definition
The speech-language pathologist is the professional who engages in clinical services, prevention, advocacy, education, administration, and research in the areas of communication and swallowing across the life span from infancy through geriatrics. Speech-language pathologists address typical and atypical impairments and disorders related to communication and swallowing in the areas of speech sound production, resonance, voice, fluency, language (comprehension and expression), cognition, and feeding and swallowing.
21 MIRINO DR, Mission Viejo, CA 92692
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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

Monica Youssef 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 ID9739622176
PECOS Enrollment IDI20240613003501

Medicare Billing Reassignment

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

Southern California Permanente Medical Group
20 mi
Health Maintenance Organization
441 N LAKEVIEW AVE
Anaheim, CA 92807
  • Reassigned Medicare billing, California enrollment
  • 13,921 clinicians in this Medicare group
NPI 1952333460 (714) 279-4000

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

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 Monica Youssef's NPI number?

The NPI number for Monica Youssef is 1265297436. It was assigned to this individual provider in the NPPES registry on February 16, 2024.

Where is Monica Youssef located?

Monica Youssef practices at 21 Mirino Dr, Mission Viejo, CA 92692. The listed phone number is (949) 769-9981.

What is Monica Youssef's specialty?

The primary specialty registered for this NPI is Speech-Language Pathologist with taxonomy code 235Z00000X.

Is Monica Youssef enrolled in Medicare?

Yes. Monica Youssef 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 Monica Youssef's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Monica Youssef reassigns Medicare benefits to Southern California Permanente Medical Group (Anaheim, 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 Monica Youssef'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 Monica Youssef was last updated on October 25, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 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.