Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

AMY LEANNE WALZ M.D.
NPI 1043452436
Pediatrics - Pediatric Hematology-Oncology in Chicago, IL

Active since March 31, 2009PECOS EnrolledAccepts Medicare Assignment
225 E CHICAGO AVE, CHICAGO, IL 60611(312) 227-4090 Get Directions Write a Review

NPPES record last updated: August 7, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Aug 7, 2026, Jan 15, 2021, Feb 24, 2017 (3 updates tracked since 2017).

About Amy Leanne Walz M.d. NPPES

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

AMY LEANNE WALZ M.D. (NPI 1043452436) is an individual pediatric hematology-oncology provider in Chicago, Illinois, licensed in Illinois (036130174) and active in the NPI registry since March 2009. She is enrolled in Medicare PECOS, is affiliated with Ann & Robert H Lurie Childrens Hospital Of Chicago, and is a graduate of University Of Louisville School Of Medicine (2009).

NPPES Registry Identity

NPI1043452436
Entity TypeIndividualFemale
Primary Taxonomy2080P0207X
Provider Legal NameAMY LEANNE WALZCredential: M.D.
Location Address225 E CHICAGO AVEChicago, IL 60611-2991
Mailing Address225 E Chicago Ave # 30Chicago, IL 60611-2991 · (312) 227-4090
Sole ProprietorNo
Medical School CMSUniversity Of Louisville School Of MedicineGraduated 2009
Enumeration DateMarch 31, 2009
Last NPPES UpdateAugust 7, 20263 updates tracked since enumeration
NPPES CertifiedAugust 7, 2026
NPI 1043452436 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPediatrics · Pediatric Hematology-OncologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0207X
License Licensed in IL · 036130174
Definition
A pediatrician trained in the combination of pediatrics, hematology and oncology to recognize and manage pediatric blood disorders and cancerous diseases.
225 E CHICAGO AVE, Chicago, IL 60611

Other Names 1

Former Name (1)Amy Leanne Spencer M.d.

Other Identifiers 1

Medicaid036130174IL

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Amy Leanne Walz M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2567739923
PECOS Enrollment IDI20170606002679
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.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

OwnershipVoluntary non-profit - Private
CMS Certification Number143300
Location225 E Chicago Ave, Box 140Chicago, IL 60611 · Cook County
Emergency services

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.

Pediatrics
225 E CHICAGO AVE
CHICAGO, IL 60611
Pediatrics
225 E CHICAGO AVE
CHICAGO, IL 60611
Nurse Practitioner (Pediatrics)
225 E CHICAGO AVE
CHICAGO, IL 60611
Nurse Practitioner (Neonatal)
225 E CHICAGO AVE
CHICAGO, IL 60611
Pediatrics (Hospice and Palliative Medicine)
225 E CHICAGO AVE
CHICAGO, IL 60611
Psychiatry & Neurology (Neurology with Special Qualifications in Child Neurology)
225 E CHICAGO AVE
CHICAGO, IL 60611
Student in an Organized Health Care Education/Training Program
225 E CHICAGO AVE
CHICAGO, IL 60611
Student in an Organized Health Care Education/Training Program
225 E CHICAGO AVE
CHICAGO, IL 60611

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 Amy Walz's NPI number?

The NPI number for Amy Walz is 1043452436. It was assigned to this individual provider in the NPPES registry on March 31, 2009. The provider is also known as Amy Leanne Spencer M.D..

Where is Amy Walz located?

Amy Walz practices at 225 E Chicago Ave, Chicago, IL 60611. The listed phone number is (312) 227-4090.

What is Amy Walz's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Hematology-Oncology, with taxonomy code 2080P0207X.

Is Amy Walz enrolled in Medicare?

Yes. Amy Walz is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Amy Walz affiliated with any hospitals?

According to CMS data, Amy Walz is affiliated with Ann & Robert H Lurie Childrens Hospital Of Chicago.

When was this NPI record last updated?

The NPPES record for Amy Walz was last updated on August 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 days 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.