MR. LUIS A DIAZ QUINTERO M.D.
NPI 1437506557
Internal Medicine - Interventional Cardiology in Chicago, IL

Active since May 18, 2016PECOS EnrolledAccepts Medicare Assignment
251 E HURON ST, CHICAGO, IL 60611(312) 926-2000 Get Directions Write a Review

NPPES record last updated: April 10, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Apr 10, 2026, Jun 7, 2021, Jul 24, 2019 and 5 more (8 updates tracked since 2016).

About Mr. Luis A Diaz Quintero M.d. NPPES

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

MR. LUIS A DIAZ QUINTERO M.D. (NPI 1437506557) is an individual interventional cardiology provider in Chicago, Illinois, licensed in Illinois (036149351) and active in the NPI registry since May 2016. He is enrolled in Medicare PECOS, is affiliated with Northwestern Lake Forest Hospital, and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1437506557
Entity TypeIndividualMale
Primary Taxonomy207RI0011X
Provider Legal NameMR. LUIS A DIAZ QUINTEROCredential: M.D.
Location Address251 E HURON STChicago, IL 60611-2908
Mailing Address8117 Preston Rd Ste 800Dallas, TX 75225-6328 · (214) 706-9018
Sole ProprietorNo
Medical School CMSOtherGraduated 2013
Enumeration DateMay 18, 2016
Last NPPES UpdateApril 10, 20268 updates tracked since enumeration
NPPES CertifiedApril 10, 2026
NPI 1437506557 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

Primary SpecialtyInternal Medicine · Interventional CardiologyAllopathic & Osteopathic Physicians
Taxonomy Code207RI0011X
License Licensed in IL · 036149351
Definition
An area of medicine within the subspecialty of cardiology, which uses specialized imaging and other diagnostic techniques to evaluate blood flow and pressure in the coronary arteries and chambers of the heart and uses technical procedures and medications to treat abnormalities that impair the function of the cardiovascular system.
Also ListedInternal MedicineTaxonomy 207R00000X · License 036149351 (IL)
Also ListedInternal Medicine · Cardiovascular DiseaseTaxonomy 207RC0000X · License 036149351 (IL)
251 E HURON ST, Chicago, IL 60611

Secondary Practice Locations 3

Location 11555 N Barrington Rd Ste 4250Hoffman Estates, IL 60169-5039 · Phone (847) 981-3680
Location 2800 Biesterfield Rd Ste 101Elk Grove Village, IL 60007-3372 · Phone (847) 981-3680
Location 3675 N Saint Clair St Ste 19-100Chicago, IL 60611-5969 · Phone (312) 664-3278 · Fax (312) 695-5774

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Mr. Luis A Diaz Quintero M.d. 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 ID6406134535
PECOS Enrollment IDI20190425002607
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.

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Northwestern Lake Forest Hospital

Acute Care Hospitals · Lake Forest, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number140130
Location1000 N Westmoreland RoadLake Forest, IL 60045 · Lake County
Emergency services Birthing friendly

Northwestern Memorial Hospital

Acute Care Hospitals · Chicago, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140281
Location251 E Huron StChicago, IL 60611 · Cook County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60611 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
$138.86 typical visit price
range $60.08 – $183.39
Typical copayment $34.71 (range $15.02 – $45.84)
Most-billed visit code 99204
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 20

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

Pathology (Anatomic Pathology & Clinical Pathology)
251 E HURON ST, FEINBERG PAVILION
CHICAGO, IL 60611
Psychiatry & Neurology (Psychiatry)
251 E HURON ST, GALTER 3-150, C
CHICAGO, IL 60611
Anesthesiology
251 E HURON ST
CHICAGO, IL 60611
Internal Medicine
251 E HURON ST
CHICAGO, IL 60611
Emergency Medicine
251 E HURON ST
CHICAGO, IL 60611
Dermatology
251 E HURON ST
CHICAGO, IL 60611
Internal Medicine
251 E HURON ST
CHICAGO, IL 60611
Obstetrics & Gynecology
251 E HURON ST
CHICAGO, IL 60611

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 Luis Diaz Quintero's NPI number?

The NPI number for Luis Diaz Quintero is 1437506557. It was assigned to this individual provider in the NPPES registry on May 18, 2016.

Where is Luis Diaz Quintero located?

Luis Diaz Quintero practices at 251 E Huron St, Chicago, IL 60611. The listed phone number is (312) 926-2000.

What is Luis Diaz Quintero's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Interventional Cardiology, with taxonomy code 207RI0011X.

Is Luis Diaz Quintero enrolled in Medicare?

Yes. Luis Diaz Quintero 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.

Is Luis Diaz Quintero affiliated with any hospitals?

According to CMS data, Luis Diaz Quintero is affiliated with Northwestern Lake Forest Hospital and Northwestern Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Luis Diaz Quintero was last updated on April 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.