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MIGUEL DIAZ
NPI 1831742170
Speech-Language Pathologist in Brentwood, CA

Active since July 16, 2019
144 CONTINENTE AVE, BRENTWOOD, CA 94513(925) 513-2440(925) 513-2470 Get Directions Write a Review

NPPES record last updated: July 16, 2019. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Miguel Diaz NPPES

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

MIGUEL DIAZ (NPI 1831742170) is an individual speech-language pathologist provider in Brentwood, California, licensed in California (SPA552) and active in the NPI registry since July 2019.

NPPES Registry Identity

NPI1831742170
Entity TypeIndividualMale
Primary Taxonomy235Z00000X
Provider Legal NameMIGUEL DIAZ
Location Address144 CONTINENTE AVEBrentwood, CA 94513-1999
Mailing Address301 E Ruby StOakley, CA 94561-5701 · (925) 421-3545
Phone(925) 513-2440
Fax(925) 513-2470
Sole ProprietorNo
Enumeration DateJuly 16, 2019
✔ NPI 1831742170 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 · SPA552
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.
144 CONTINENTE AVE, Brentwood, CA 94513
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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 (PECOS)

Miguel Diaz is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Billing Reassignment

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

Permanente Medical Group Inc
23 mi
Internal Medicine
7373 WEST LANE
Stockton, CA 95210
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1548343510 (209) 476-2000

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 11

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

MRS. JACQUELINE ALLEGRO HERNANDEZ SLP
Speech-Language Pathologist
144 CONTINENTE AVE
BRENTWOOD, CA 94513
Contra Costa County (925) 513-2440
KELLY TUVESON
Specialist
144 CONTINENTE AVE
BRENTWOOD, CA 94513
Contra Costa County (925) 513-2440
HOPE WOOD MA
Behavior Technician
144 CONTINENTE AVE
BRENTWOOD, CA 94513
Contra Costa County (925) 513-2440
BROOKE FOOTE
Occupational Therapist
144 CONTINENTE AVE
BRENTWOOD, CA 94513
Contra Costa County (925) 513-2440
NOREEN LEE OTR/L
Occupational Therapist
144 CONTINENTE AVE
BRENTWOOD, CA 94513
Contra Costa County (925) 513-2440
MRS. YVONNE SORIANO COTA/C
Occupational Therapy Assistant
144 CONTINENTE AVE, SUITE #100
BRENTWOOD, CA 94513
Contra Costa County (925) 513-2440
JENNY ANN BLAIR MOT
Occupational Therapist
144 CONTINENTE AVE
BRENTWOOD, CA 94513
Contra Costa County (925) 513-2440
JESSICA MAXINE SMILOVITZ OTR/L
Occupational Therapist
144 CONTINENTE AVE
BRENTWOOD, CA 94513
Contra Costa County (925) 513-2440

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 Miguel Diaz's NPI number?

The NPI number for Miguel Diaz is 1831742170. It was assigned to this individual provider in the NPPES registry on July 16, 2019.

Where is Miguel Diaz located?

Miguel Diaz practices at 144 Continente Ave, Brentwood, CA 94513. The listed phone number is (925) 513-2440.

What is Miguel Diaz's specialty?

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

Is Miguel Diaz enrolled in Medicare?

Yes. Miguel Diaz is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Miguel Diaz's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Miguel Diaz reassigns Medicare benefits to Permanente Medical Group Inc (Stockton, 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 Miguel Diaz'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 Miguel Diaz was last updated on July 16, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.