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MARIA ROSARIO MARTINEZ DNP
NPI 1114755188
Nurse Practitioner - Pediatrics in Chicago, IL

Active since July 22, 2024PECOS Enrolled
3059 W 26TH ST, CHICAGO, IL 60623(773) 584-6200 Get Directions Write a Review

NPPES record last updated: May 4, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: May 4, 2026, Jul 22, 2024 (2 updates tracked since 2024).

About Maria Rosario Martinez Dnp NPPES

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

MARIA ROSARIO MARTINEZ DNP (NPI 1114755188) is an individual pediatrics provider in Chicago, Illinois, licensed in Illinois (041447815) and active in the NPI registry since July 2024. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1114755188
Entity TypeIndividualFemale
Primary Taxonomy363LP0200X
Provider Legal NameMARIA ROSARIO MARTINEZCredential: DNP
Location Address3059 W 26TH STChicago, IL 60623-4131
Mailing Address3059 W 26th StChicago, IL 60623-4131 · (773) 584-6200
Phone(773) 584-6200
Sole ProprietorNo
Enumeration DateJuly 22, 2024
Last NPPES UpdateMay 4, 20262 updates tracked since enumeration
NPPES CertifiedMay 4, 2026
✔ NPI 1114755188 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · PediatricsPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0200X
License✔ Licensed in IL · 041447815
3059 W 26TH ST, Chicago, IL 60623
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Ambetter Health of Delaware, Oscar Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Maria Rosario Martinez Dnp 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.

Medicare Billing Reassignment

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

Esperanza Health Centers
Same address
Federally Qualified Health Center (FQHC)
3059 W 26TH ST
Chicago, IL 60623
  • Reassigned Medicare billing, Illinois enrollment
  • 123 clinicians in this Medicare group
NPI 1477812030 (773) 932-2111

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60623 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.

LABORATORY CORPORATION OF AMERICA
Clinical Medical Laboratory
3059 W 26TH ST
CHICAGO, IL 60623
Cook County (773) 932-2111
JARED R KING DPT
Physical Therapist
3059 W 26TH ST
CHICAGO, IL 60623
Cook County (773) 696-9050
MABEL MUNOZ
Physical Therapy Assistant
3059 W 26TH ST
CHICAGO, IL 60623
Cook County (773) 696-9050
SAINT ANTHONY HEALTH AFFILIATES
Clinic/Center (Multi-Specialty)
3059 W 26TH ST
CHICAGO, IL 60623
Cook County (773) 696-9490
HANNAH HUTCHINSON
Speech-Language Pathologist
3059 W 26TH ST
CHICAGO, IL 60623
Cook County (712) 266-5985
CHICAGO DEPARTMENT OF PUBLIC HEALTH
Clinic/Center (Community Health)
3059 W 26TH ST
CHICAGO, IL 60623
Cook County (312) 747-0066
BRANDY BURGOS MD
Pediatrics
3059 W 26TH ST
CHICAGO, IL 60623
Cook County (773) 584-6200
SAINT ANTHONY HOSPITAL
Clinic/Center (Ophthalmologic Surgery)
3059 W 26TH ST
CHICAGO, IL 60623
Cook County (773) 696-9490

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 Maria Martinez's NPI number?

The NPI number for Maria Martinez is 1114755188. It was assigned to this individual provider in the NPPES registry on July 22, 2024.

Where is Maria Martinez located?

Maria Martinez practices at 3059 W 26th St, Chicago, IL 60623. The listed phone number is (773) 584-6200.

What is Maria Martinez's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Pediatrics, with taxonomy code 363LP0200X.

Is Maria Martinez enrolled in Medicare?

Yes. Maria Martinez is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Maria Martinez's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Maria Martinez reassigns Medicare benefits to Esperanza Health Centers (Chicago, 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 Maria Martinez's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Maria Martinez accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Oscar Health list Maria Martinez as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Maria Martinez was last updated on May 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.