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STEFANO GUANDALINI M.D,
NPI 1679603302
Pediatrics - Pediatric Gastroenterology in Chicago, IL

Active since March 06, 2007PECOS Enrolled
UNIVERSITY OF CHICAGO, SECTION OF PEDS GASTRO, 5839 SOUTH MARYLAND AVENUE, MC 4065, CHICAGO, IL 60637(773) 702-6418(773) 702-0666 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Stefano Guandalini M.d, NPPES

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

STEFANO GUANDALINI M.D, (NPI 1679603302) is an individual pediatric gastroenterology provider in Chicago, Illinois and active in the NPI registry since March 2007. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1679603302
Entity TypeIndividualMale
Primary Taxonomy2080P0206X
Provider Legal NameSTEFANO GUANDALINICredential: M.D,
Location AddressUNIVERSITY OF CHICAGO, SECTION OF PEDS GASTRO, 5839 SOUTH MARYLAND AVENUE, MC 4065Chicago, IL 60637-1470
Mailing AddressUniversity Of Chicago, Section Of Peds Gastro, 5839 South Maryland Avenue, Mc 4065Chicago, IL 60637-1470 · (773) 702-6418 · Fax (773) 702-0666
Phone(773) 702-6418
Fax(773) 702-0666
Sole ProprietorNo
Enumeration DateMarch 6, 2007
Last NPPES UpdateJuly 8, 2007
✔ NPI 1679603302 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Pediatric GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0206X
Definition
A pediatrician who specializes in the diagnosis and treatment of diseases of the digestive systems of infants, children and adolescents. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using lighted scopes to see internal organs.
UNIVERSITY OF CHICAGO, SECTION OF PEDS GASTRO, Chicago, IL 60637
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Other Identifiers 2

Medicaid2000092610IN
Medicare UPINL52742IL

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Stefano Guandalini 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 Reassignment

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

The University Of Chicago Medical Center
Same address
General Acute Care Hospital
5841 S MARYLAND AVE
Chicago, IL 60637
  • Reassigned Medicare billing, Illinois enrollment
  • 1,905 clinicians in this Medicare group
NPI 1033218128 (773) 702-1530

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 60637 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.

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 Stefano Guandalini's NPI number?

The NPI number for Stefano Guandalini is 1679603302. It was assigned to this individual provider in the NPPES registry on March 6, 2007.

Where is Stefano Guandalini located?

Stefano Guandalini practices at University Of Chicago, Section Of Peds Gastro 5839 South Maryland Avenue, Mc 4065, Chicago, IL 60637. The listed phone number is (773) 702-6418.

What is Stefano Guandalini's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Gastroenterology, with taxonomy code 2080P0206X.

Is Stefano Guandalini enrolled in Medicare?

Yes. Stefano Guandalini is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Stefano Guandalini's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Stefano Guandalini reassigns Medicare benefits to The University Of Chicago Medical Center (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 Stefano Guandalini's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Stefano Guandalini was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.