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MICHELLE DIAZ
NPI 1629823018
Speech-Language Pathologist in Naperville, IL

Active since April 19, 2024Accepts Medicare Assignment
1619 N MILL ST, NAPERVILLE, IL 60563(630) 701-6040 Get Directions Write a Review

NPPES record last updated: April 19, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Michelle Diaz NPPES

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

MICHELLE DIAZ (NPI 1629823018) is an individual speech-language pathologist provider in Naperville, Illinois and active in the NPI registry since April 2024. She is a graduate of Other (2024).

NPPES Registry Identity

NPI1629823018
Entity TypeIndividualFemale
Primary Taxonomy235Z00000X
Provider Legal NameMICHELLE DIAZ
Location Address1619 N MILL STNaperville, IL 60563-2858
Mailing Address1241 Tennyson LnNaperville, IL 60540-0333
Phone(630) 701-6040
Sole ProprietorNo
Medical School CMSOtherGraduated 2024
Enumeration DateApril 19, 2024
NPPES CertifiedApril 19, 2024
✔ NPI 1629823018 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
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.
1619 N MILL ST, Naperville, IL 60563
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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

Michelle Diaz 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 ID9436699824
PECOS Enrollment IDI20240912000923

Medicare Billing Reassignment

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

Paxxon Healthcare Services LLC
19 mi
Physical Therapist
1035 MADISON ST
Oak Park, IL 60302
  • Reassigned Medicare billing, Illinois enrollment
  • 99 clinicians in this Medicare group
NPI 1063784148 (708) 848-7200

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

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Treatment of speech, language, voice, communication, and/or hearing processing disorder 92507
This treatment involves working with a specialist to improve communication skills. It could involve exercises to enhance speech clarity, language understanding, voice volume, or hearing comprehension. The goal is to enhance your ability to express and understand others effectively.
21 services12 patients

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.

MATTHEW DAVID LAU DPT
Physical Therapist
1619 N MILL ST
NAPERVILLE, IL 60563
Dupage County (630) 701-6040
CHARMIBEN PATEL PT
Physical Therapist
1619 N MILL ST
NAPERVILLE, IL 60563
Dupage County (630) 394-1907
MRS. ALEXANDRA HARRER OTR/L
Occupational Therapist
1619 N MILL ST
NAPERVILLE, IL 60563
Dupage County (630) 778-3475
KHYATI MALHOTRA DPT
Physical Therapist
1619 N MILL ST
NAPERVILLE, IL 60563
Dupage County (630) 701-6040
MS. CHRISTINE SEVCIK COOKE PT
Physical Therapist
1619 N MILL ST
NAPERVILLE, IL 60563
Dupage County (630) 701-6040
SARAH KRUSE OTR/L
Occupational Therapist
1619 N MILL ST
NAPERVILLE, IL 60563
Dupage County (847) 532-3492
MEETAL DAVE DPT
Physical Therapist
1619 N MILL ST
NAPERVILLE, IL 60563
Dupage County (630) 854-0182
MS. ISHA PATEL OTR/L
Occupational Therapist
1619 N MILL ST
NAPERVILLE, IL 60563
Dupage County (630) 701-6040

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 Michelle Diaz's NPI number?

The NPI number for Michelle Diaz is 1629823018. It was assigned to this individual provider in the NPPES registry on April 19, 2024.

Where is Michelle Diaz located?

Michelle Diaz practices at 1619 N Mill St, Naperville, IL 60563. The listed phone number is (630) 701-6040.

What is Michelle Diaz's specialty?

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

Is Michelle Diaz enrolled in Medicare?

Yes. Michelle Diaz 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 Michelle Diaz's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Michelle Diaz reassigns Medicare benefits to Paxxon Healthcare Services LLC (Oak Park, IL). 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 Michelle 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 Michelle Diaz was last updated on April 19, 2024. 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.