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DR. STEPHANIE M WELLER M.D.
NPI 1891886164
Pediatrics in Chicago, IL

Active since September 28, 2006PECOS Enrolled
1945 W WILSON AVE STE 4000, CHICAGO, IL 60640(773) 736-6220(773) 736-3941 Get Directions Write a Review

NPPES record last updated: December 10, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Stephanie M Weller M.d. NPPES

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

DR. STEPHANIE M WELLER M.D. (NPI 1891886164) is an individual pediatrics provider in Chicago, Illinois, licensed in Illinois (036129096) and active in the NPI registry since September 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1891886164
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameDR. STEPHANIE M WELLERCredential: M.D.
Location Address1945 W WILSON AVE STE 4000Chicago, IL 60640-5255
Mailing Address1945 W Wilson Ave Ste 4000Chicago, IL 60640-5255 · (773) 736-6220 · Fax (773) 736-3941
Phone(773) 736-6220
Fax(773) 736-3941
Sole ProprietorNo
Enumeration DateSeptember 28, 2006
Last NPPES UpdateDecember 10, 2021
NPPES CertifiedDecember 10, 2021
✔ NPI 1891886164 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in IL · 036129096
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
1945 W WILSON AVE STE 4000, Chicago, IL 60640
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Other Identifiers 1

Medicaid036129096IL

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)

Dr. Stephanie M Weller M.d. 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 Reassignments

2

Medicare enrollment records show Stephanie Weller reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Advocate Health And Hospitals Corp.
1.8 mi
Cardiovascular Disease
3118 N ASHLAND AVE
Chicago, IL 60657
  • Reassigned Medicare billing, Illinois enrollment
  • 4,870 clinicians in this Medicare group
NPI 1487951711 (773) 880-9722
Pcc Community Wellness Center
7.3 mi
Federally Qualified Health Center (FQHC)
14 LAKE ST
Oak Park, IL 60302
  • Reassigned Medicare billing, Illinois enrollment
  • 221 clinicians in this Medicare group
NPI 1871516799 (708) 383-0113

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 60640 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

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

MARY LOUISE ORTH APN
Nurse Practitioner (Pediatrics)
1945 W WILSON AVE STE 4000
CHICAGO, IL 60640
Cook County (773) 736-6220

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 Stephanie Weller's NPI number?

The NPI number for Stephanie Weller is 1891886164. It was assigned to this individual provider in the NPPES registry on September 28, 2006.

Where is Stephanie Weller located?

Stephanie Weller practices at 1945 W Wilson Ave Ste 4000, Chicago, IL 60640. The listed phone number is (773) 736-6220.

What is Stephanie Weller's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Stephanie Weller enrolled in Medicare?

Yes. Stephanie Weller is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Stephanie Weller's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Stephanie Weller reassigns Medicare benefits to 2 organizations: Advocate Health And Hospitals Corp. (Chicago, IL) and Pcc Community Wellness Center (Oak Park, IL). Each 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 Stephanie Weller's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Stephanie Weller accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Oscar Health list Stephanie Weller 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 Stephanie Weller was last updated on December 10, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.