MRS. DARLEEN N/A DIAZ MSN, RN, APN, FNP-PC
NPI 1134593635
Nurse Practitioner - Family in Chicago, IL

Q: What is Darleen Diaz's NPI number?

The NPI number for Darleen Diaz is 1134593635. It was assigned to this individual provider in the NPPES registry on November 20, 2015.

Q: What is Darleen Diaz's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Q: When was this NPI record last updated?

The NPPES record for Darleen Diaz was last updated on January 29, 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.

Active since November 20, 2015PECOS Enrolled

225 E CHICAGO AVE, CHICAGO, IL 60611(312) 227-4000 Get Directions Write a Review

NPPES record last updated: January 29, 2021. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jan 29, 2021, Nov 20, 2015 (2 updates tracked since 2015).

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About Mrs. Darleen N/a Diaz Msn, Rn, Apn, Fnp-pc NPPES

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

MRS. DARLEEN N/A DIAZ MSN, RN, APN, FNP-PC (NPI 1134593635) is an individual family provider in Chicago, Illinois, licensed in Illinois (277.000784) and active in the NPI registry since November 2015. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1134593635

Entity TypeIndividualFemale

Primary Taxonomy363LF0000X

Provider Legal NameMRS. DARLEEN N/A DIAZCredential: MSN, RN, APN, FNP-PC

Location Address225 E CHICAGO AVEChicago, IL 60611-2991

Mailing Address2631 Elm StRiver Grove, IL 60171-1618 · (312) 860-8566

Phone(312) 227-4000

Sole ProprietorYes

Enumeration DateNovember 20, 2015

Last NPPES UpdateJanuary 29, 20212 updates tracked since enumeration

NPPES CertifiedJanuary 29, 2021

✔ NPI 1134593635 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LF0000X

Licenses✔ Licensed in IL · 277.000784✔ Licensed in IL · 209.013407

225 E CHICAGO AVE, Chicago, IL 60611

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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mrs. Darleen N/a Diaz Msn, Rn, Apn, Fnp-pc 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 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

$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 20

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

BESSEY ELIZABETH JOSE GEEVARGHESE DO

Pediatrics