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DR. MIRIAM ANNA BORNHORST MD
NPI 1639339369
Pediatrics - Pediatric Hematology-Oncology in Chicago, IL

Active since June 16, 2008PECOS Enrolled
225 E CHICAGO AVE, CHICAGO, IL 60611(312) 227-4090 Get Directions Write a Review

NPPES record last updated: August 3, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Aug 3, 2026, Jun 13, 2024 (2 updates tracked since 2024).

About Dr. Miriam Anna Bornhorst Md NPPES

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

DR. MIRIAM ANNA BORNHORST MD (NPI 1639339369) is an individual pediatric hematology-oncology provider in Chicago, Illinois, licensed in Illinois (036.167540) and active in the NPI registry since June 2008. She is enrolled in Medicare PECOS, maintains a secondary practice location in Washington, and is a graduate of Creighton University School Of Medicine (2008).

NPPES Registry Identity

NPI1639339369
Entity TypeIndividualFemale
Primary Taxonomy2080P0207X
Provider Legal NameDR. MIRIAM ANNA BORNHORSTCredential: MD
Location Address225 E CHICAGO AVEChicago, IL 60611-2991
Mailing Address225 E Chicago AveChicago, IL 60611-2991 · (312) 227-4090
Phone(312) 227-4090
Sole ProprietorYes
Medical School CMSCreighton University School Of MedicineGraduated 2008
Enumeration DateJune 16, 2008
Last NPPES UpdateAugust 3, 20262 updates tracked since enumeration
NPPES CertifiedAugust 3, 2026
✔ NPI 1639339369 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Pediatric Hematology-OncologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0207X
Licenses✔ Licensed in IL · 036.167540✔ Licensed in DC · MD042360
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
Open in Google Maps ↗

Secondary Practice Location 1

Location 1111 Michigan Ave NWWashington, DC 20010-2916 · Phone (202) 476-2800

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Miriam Anna Bornhorst Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID3274842141
PECOS Enrollment IDI20260514003781
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 Miriam Bornhorst reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Lurie Children's Medical Group Inc
Same address
Pediatrics
225 E CHICAGO AVE
Chicago, IL 60611
  • Reassigned Medicare billing, Illinois enrollment
  • 826 clinicians in this Medicare group
NPI 1518064716 (312) 227-6412
Children's Hospital
595 mi
Pediatrics
111 MICHIGAN AVE NW
Washington, DC 20010
  • Reassigned Medicare billing, District of Columbia enrollment
  • 1,417 clinicians in this Medicare group
NPI 1780800128 (202) 476-5000

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.

BESSEY ELIZABETH JOSE GEEVARGHESE DO
Pediatrics
225 E CHICAGO AVE
CHICAGO, IL 60611
Cook County (630) 933-6631
CHRISTINA SOOJIN KIM M.D.
Pediatrics
225 E CHICAGO AVE
CHICAGO, IL 60611
Cook County (443) 928-7458
JESSICA LAUREN OFFENBACH APN
Nurse Practitioner (Pediatrics)
225 E CHICAGO AVE
CHICAGO, IL 60611
Cook County (312) 227-4000
MS. JENNY KO LEE APN
Nurse Practitioner (Neonatal)
225 E CHICAGO AVE
CHICAGO, IL 60611
Cook County (847) 962-6268
ERIN COHEN MD
Pediatrics (Hospice and Palliative Medicine)
225 E CHICAGO AVE
CHICAGO, IL 60611
Cook County (312) 227-4000
DR. JOSEPH HART COLLINS MD
Psychiatry & Neurology (Neurology with Special Qualifications in Child Neurology)
225 E CHICAGO AVE
CHICAGO, IL 60611
Cook County (312) 227-3550
ALEXIS LYN HARMON
Student in an Organized Health Care Education/Training Program
225 E CHICAGO AVE
CHICAGO, IL 60611
Cook County (312) 227-4000
SHANNON JULIA CONWAY MD
Student in an Organized Health Care Education/Training Program
225 E CHICAGO AVE
CHICAGO, IL 60611
Cook County (312) 227-4000

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 Miriam Bornhorst's NPI number?

The NPI number for Miriam Bornhorst is 1639339369. It was assigned to this individual provider in the NPPES registry on June 16, 2008.

Where is Miriam Bornhorst located?

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

What is Miriam Bornhorst's specialty?

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

Is Miriam Bornhorst enrolled in Medicare?

Yes. Miriam Bornhorst is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Miriam Bornhorst's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Miriam Bornhorst reassigns Medicare benefits to 2 organizations: Lurie Children's Medical Group Inc (Chicago, IL) and Children's Hospital (Washington, DC). 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 Miriam Bornhorst'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 Miriam Bornhorst was last updated on August 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.