1. Home
  2. Directory
  3. Illinois
  4. La Grange
  5. Family Medicine
  6. NPI Profile
Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

DR. TAHYRI DIAZ MD
NPI 1841823630
Family Medicine in La Grange, IL

Active since February 19, 2020PECOS Enrolled
512 W BURLINGTON AVE STE 100, LA GRANGE, IL 60525(708) 579-4801(708) 579-4805 Get Directions Write a Review

NPPES record last updated: July 17, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 17, 2026, Jun 5, 2023, Feb 19, 2020 (3 updates tracked since 2020).

About Dr. Tahyri Diaz Md NPPES

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

DR. TAHYRI DIAZ MD (NPI 1841823630) is an individual family medicine provider in La Grange, Illinois, licensed in Illinois (036-180988) and active in the NPI registry since February 2020. She is enrolled in Medicare PECOS and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1841823630
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameDR. TAHYRI DIAZCredential: MD
Location Address512 W BURLINGTON AVE STE 100La Grange, IL 60525-2234
Mailing AddressPob 7132960Chicago, IL 60677-1260 · (630) 469-9200
Phone(708) 579-4801
Fax(708) 579-4805
Sole ProprietorNo
Enumeration DateFebruary 19, 2020
Last NPPES UpdateJuly 17, 20263 updates tracked since enumeration
NPPES CertifiedJuly 17, 2026
✔ NPI 1841823630 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 5

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
Licenses✔ Licensed in IL · 036-180988✔ Licensed in IL · 125.082431
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
Also ListedRegistered Nurse · Home HealthTaxonomy 163WH0200X · License 831764 (TX)
Also ListedRegistered Nurse · Infusion TherapyTaxonomy 163WI0500X · License 831764 (TX)
Also ListedRegistered Nurse · Wound CareTaxonomy 163WW0000X · License 831764 (TX)
Also ListedRegistered Nurse · Ostomy CareTaxonomy 163WX1500X · License 831764 (TX)
512 W BURLINGTON AVE STE 100, La Grange, IL 60525
Open in Google Maps ↗

Other Names 1

Former Name (1)Tahyri Diaz Sujo

Secondary Practice Locations 2

Location 17710 W Interstate 10San Antonio, TX 78230-4711 · Phone (210) 377-3355
Location 21950 W Polk StChicago, IL 60612-3723 · Phone (312) 864-0390

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

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

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60525 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$94.06 typical visit price
range $60.08 – $183.39
Typical copayment $23.51 (range $15.02 – $45.84)
Most-billed visit code 99203
Established Patient
$105.70 typical visit price
range $18.97 – $148.12
Typical copayment $26.42 (range $4.74 – $37.03)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES

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

MARGARET MALICAY MD
Family Medicine
512 W BURLINGTON AVE STE 100
LA GRANGE, IL 60525
Cook County (708) 579-4801

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 Tahyri Diaz's NPI number?

The NPI number for Tahyri Diaz is 1841823630. It was assigned to this individual provider in the NPPES registry on February 19, 2020. The provider is also known as Tahyri Diaz Sujo.

Where is Tahyri Diaz located?

Tahyri Diaz practices at 512 W Burlington Ave Ste 100, La Grange, IL 60525. The listed phone number is (708) 579-4801.

What is Tahyri Diaz's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Tahyri Diaz enrolled in Medicare?

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

When was this NPI record last updated?

The NPPES record for Tahyri Diaz was last updated on July 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 days 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.