MRS. ADRIANA MATILDE GUILLEN M.A. CCC-SLP
NPI 1174779458
Speech-Language Pathologist in Redlands, CA

Active since August 18, 2008
535 W STATE ST, REDLANDS, CA 92373(951) 769-5332 Get Directions Write a Review

NPPES record last updated: October 8, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Oct 8, 2021, Jun 8, 2020 (2 updates tracked since 2020).

About Mrs. Adriana Matilde Guillen M.a. Ccc-slp NPPES

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

MRS. ADRIANA MATILDE GUILLEN M.A. CCC-SLP (NPI 1174779458) is an individual speech-language pathologist provider in Redlands, California, licensed in California (SP15600) and active in the NPI registry since August 2008.

NPPES Registry Identity

NPI1174779458
Entity TypeIndividualFemale
Primary Taxonomy235Z00000X
Provider Legal NameMRS. ADRIANA MATILDE GUILLENCredential: M.A. CCC-SLP
Location Address535 W STATE STRedlands, CA 92373-4662
Mailing Address1429 Tours CtBeaumont, CA 92223-3151 · (951) 769-5332
Sole ProprietorYes
Enumeration DateAugust 18, 2008
Last NPPES UpdateOctober 8, 20212 updates tracked since enumeration
NPPES CertifiedOctober 8, 2021
✔ NPI 1174779458 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 · SP15600
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.
535 W STATE ST, Redlands, CA 92373

Other Names 1

Former Name (1)Adriana Matilde Sanders

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mrs. Adriana Matilde Guillen M.a. Ccc-slp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Billing Reassignment

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

Health Maintenance Organization
9961 SIERRA AVE
Fontana, CA 92335
  • Reassigned Medicare billing, California enrollment
  • 5,228 clinicians in this Medicare group

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 2

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

Marriage & Family Therapist
535 W STATE ST, SUITE # C
REDLANDS, CA 92373
Marriage & Family Therapist
535 W STATE ST, C
REDLANDS, CA 92373

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 Adriana Guillen's NPI number?

The NPI number for Adriana Guillen is 1174779458. It was assigned to this individual provider in the NPPES registry on August 18, 2008. The provider is also known as Adriana Matilde Sanders.

Where is Adriana Guillen located?

Adriana Guillen practices at 535 W State St, Redlands, CA 92373. The listed phone number is (951) 769-5332.

What is Adriana Guillen's specialty?

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

Is Adriana Guillen enrolled in Medicare?

Yes. Adriana Guillen is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Adriana Guillen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Adriana Guillen reassigns Medicare benefits to Southern California Permanente Medical Group (Fontana, 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 Adriana Guillen'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 Adriana Guillen was last updated on October 8, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.