Doctor profile · Federal record

Dr. Natasha Diaz, MD

Family Medicine Physician (CMS: Family Practice) · Chicago, IL

  • NPI 1659300408
  • Accepts Medicare
  • 25 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
5359 W Fullerton Ave
Chicago, IL 606391450
(773) 836-2785
fax (773) 836-7381

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
December 30, 2019
Year of graduation
2001 — 25 yrs since
Specialty taxonomy
207Q00000X — NUCC code
State license (1)
Illinois #036-113339
Medicaid
IL #036113339

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1659300408. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$23
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Braeburn Inc. 1 $23.27

By nature of payment

Food and Beverage
$23

Frequently asked questions

Auto-generated from federal data
What is Dr. Natasha Diaz's medical specialty?
Dr. Natasha Diaz practices Family Medicine Physician in Chicago, IL.
Where does Dr. Natasha Diaz practice?
Dr. Natasha Diaz practices at 5359 W Fullerton Ave, Chicago, IL 606391450. Office phone: 7738362785.
What is Dr. Natasha Diaz's NPI?
Dr. Natasha Diaz's National Provider Identifier (NPI) is 1659300408, issued by NPPES.
Does Dr. Natasha Diaz accept Medicare assignment?
Yes. Dr. Natasha Diaz accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.