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MRS. ERICA ORTEZ FNP-BC, APN
NPI 1104139336
Nurse Practitioner - Family in Chicago, IL

Active since July 16, 2010PECOS Enrolled
9831 S WESTERN AVE, CHICAGO, IL 60643(773) 445-3500 Get Directions Write a Review

NPPES record last updated: January 14, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jan 14, 2026, Dec 6, 2017 (2 updates tracked since 2017).

About Mrs. Erica Ortez Fnp-bc, Apn NPPES

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

MRS. ERICA ORTEZ FNP-BC, APN (NPI 1104139336) is an individual family provider in Chicago, Illinois, licensed in Illinois (209008212) and active in the NPI registry since July 2010. She is enrolled in Medicare PECOS and maintains a secondary practice location in Warrenville.

NPPES Registry Identity

NPI1104139336
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameMRS. ERICA ORTEZCredential: FNP-BC, APN
Location Address9831 S WESTERN AVEChicago, IL 60643-1740
Mailing Address29373 Network PlChicago, IL 60673-1293 · (847) 390-5900
Phone(773) 445-3500
Sole ProprietorNo
Enumeration DateJuly 16, 2010
Last NPPES UpdateJanuary 14, 20262 updates tracked since enumeration
NPPES CertifiedJanuary 14, 2026
✔ NPI 1104139336 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
License✔ Licensed in IL · 209008212
9831 S WESTERN AVE, Chicago, IL 60643
Open in Google Maps ↗

Other Names 1

Former Name (1)Erica Souders

Secondary Practice Location 1

Location 128201 Diehl RdWarrenville, IL 60555-3934 · Phone (708) 427-5765

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include 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)

Mrs. Erica Ortez Fnp-bc, Apn 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 Erica Ortez reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Advocate Health & Hospitals Corporation
2.7 mi
Medical Specialty
4440 W 95TH ST
Oak Lawn, IL 60453
  • Reassigned Medicare billing, Illinois enrollment
  • Medicare enrollment name: Advocate Health And Hospitals Corporation
  • 4,870 clinicians in this Medicare group
NPI 1912936014 (847) 390-5900

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 60643 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.

DR. HELEN N. TCHENG M.D.
Pediatrics
9831 S WESTERN AVE
CHICAGO, IL 60643
Cook County (773) 445-3500
JENNIFER LOHNE D.O.
Family Medicine
9831 S WESTERN AVE
CHICAGO, IL 60643
Cook County (773) 445-3500
MIA WATKINS
Nurse Practitioner (Family)
9831 S WESTERN AVE
CHICAGO, IL 60643
Cook County (773) 445-3500
DR. EVELYN MICHELE BELL M.D.
Family Medicine
9831 S WESTERN AVE
CHICAGO, IL 60643
Cook County (773) 445-3500
AZRA OMEROVIC M.D.
Internal Medicine
9831 S WESTERN AVE
CHICAGO, IL 60643
Cook County (773) 445-3500
ADORACION L DUQUE M.D.
Anesthesiology
9831 S WESTERN AVE
CHICAGO, IL 60643
Cook County (773) 445-9696
TAGUMPAY E NAVARRO PA
Physician Assistant
9831 S WESTERN AVE
CHICAGO, IL 60643
Cook County (773) 445-3500
ROBIA BYAS M.D.
Internal Medicine
9831 S WESTERN AVE
CHICAGO, IL 60643
Cook County (773) 445-3500

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 Erica Ortez's NPI number?

The NPI number for Erica Ortez is 1104139336. It was assigned to this individual provider in the NPPES registry on July 16, 2010. The provider is also known as Erica Souders.

Where is Erica Ortez located?

Erica Ortez practices at 9831 S Western Ave, Chicago, IL 60643. The listed phone number is (773) 445-3500.

What is Erica Ortez's specialty?

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

Is Erica Ortez enrolled in Medicare?

Yes. Erica Ortez is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Erica Ortez's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Erica Ortez reassigns Medicare benefits to Advocate Health & Hospitals Corporation (Oak Lawn, 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 Erica Ortez's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Erica Ortez accept?

Health plans from Oscar Health list Erica Ortez 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 Erica Ortez was last updated on January 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.