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MARY ELIZABETH ROSS MD, PHD
NPI 1841287588
Pediatrics - Pediatric Hematology-Oncology in Peoria, IL

Active since September 27, 2005PECOS Enrolled
530 NE GLEN OAK AVE, PEORIA, IL 61637(309) 624-4945(309) 624-9848 Get Directions Write a Review

NPPES record last updated: July 21, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 21, 2022, Jun 26, 2018 (2 updates tracked since 2018).

About Mary Elizabeth Ross Md, Phd NPPES

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

MARY ELIZABETH ROSS MD, PHD (NPI 1841287588) is an individual pediatric hematology-oncology provider in Peoria, Illinois, licensed in Illinois (036.122072) and active in the NPI registry since September 2005. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1841287588
Entity TypeIndividualFemale
Primary Taxonomy2080P0207X
Provider Legal NameMARY ELIZABETH ROSSCredential: MD, PHD
Location Address530 NE GLEN OAK AVEPeoria, IL 61637
Mailing Address530 Ne Glen Oak AvePeoria, IL 61637-0001 · (309) 624-4945 · Fax (309) 624-9848
Phone(309) 624-4945
Fax(309) 624-9848
Sole ProprietorNo
Enumeration DateSeptember 27, 2005
Last NPPES UpdateJuly 21, 20222 updates tracked since enumeration
✔ NPI 1841287588 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 · 036.122072
Definition
A pediatrician trained in the combination of pediatrics, hematology and oncology to recognize and manage pediatric blood disorders and cancerous diseases.
530 NE GLEN OAK AVE, Peoria, IL 61637
Open in Google Maps ↗

Other Identifiers 2

Medicaid2534850OH
Medicaid036122072IL

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mary Elizabeth Ross Md, Phd 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 Mary Ross reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Board Of Trustees Of The University Of Illinois
0.6 mi
Pediatrics
1 ILLINI DR
Peoria, IL 61605
  • Reassigned Medicare billing, Illinois enrollment
  • 2,127 clinicians in this Medicare group
NPI 1467425322 (309) 680-8649
Osf Multi-Specialty Group
7.4 mi
Internal Medicine
8600 N STATE ROUTE 91
Peoria, IL 61615
  • Reassigned Medicare billing, Illinois enrollment
  • 2,944 clinicians in this Medicare group
NPI 1922445527 (309) 683-5050

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

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. HAMID MAHMOOD ZIA M.D
Pathology (Anatomic Pathology & Clinical Pathology)
530 NE GLEN OAK AVE, CENTRAL ILLINOIS PATHOLOGY SC
PEORIA, IL 61637
Peoria County (309) 624-9011
THOMAS JAMES MCMORROW MD
Pediatrics
530 NE GLEN OAK AVE
PEORIA, IL 61637
Peoria County (309) 655-2553
ALEXANDRA ROPER MD
Surgery
530 NE GLEN OAK AVE
PEORIA, IL 61637
Peoria County (309) 655-2000
JAPMEHR KAUR SANDHU M.B.B.S.
Student in an Organized Health Care Education/Training Program
530 NE GLEN OAK AVE
PEORIA, IL 61637
Peoria County (309) 624-9351
THOMAS BLACKWELL JR. MD
Student in an Organized Health Care Education/Training Program
530 NE GLEN OAK AVE
PEORIA, IL 61637
Peoria County (309) 655-2000
LUKE KLOFT
Student in an Organized Health Care Education/Training Program
530 NE GLEN OAK AVE
PEORIA, IL 61637
Peoria County (309) 655-2109
ABIGAIL V. WELU DO
Student in an Organized Health Care Education/Training Program
530 NE GLEN OAK AVE
PEORIA, IL 61637
Peoria County (309) 655-6710
DR. JAMES DANIEL DEWAR D.O.
Internal Medicine (Interventional Cardiology)
530 NE GLEN OAK AVE
PEORIA, IL 61637
Peoria County (309) 655-7257

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 Mary Ross's NPI number?

The NPI number for Mary Ross is 1841287588. It was assigned to this individual provider in the NPPES registry on September 27, 2005.

Where is Mary Ross located?

Mary Ross practices at 530 NE Glen Oak Ave, Peoria, IL 61637. The listed phone number is (309) 624-4945.

What is Mary Ross's specialty?

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

Is Mary Ross enrolled in Medicare?

Yes. Mary Ross is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Mary Ross's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mary Ross reassigns Medicare benefits to 2 organizations: Board Of Trustees Of The University Of Illinois (Peoria, IL) and Osf Multi-Specialty Group (Peoria, 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 Mary Ross'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 Mary Ross was last updated on July 21, 2022. 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.