1. Home
  2. Directory
  3. Illinois
  4. Chicago
  5. Pediatrics
  6. NPI Profile
Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

JOHN-TOD HARRISON SURGEON
NPI 1336834886
Pediatrics - Pediatric Hematology-Oncology in Chicago, IL

Active since April 10, 2023
225 E CHICAGO AVE, CHICAGO, IL 60611(312) 227-4090 Get Directions Write a Review

NPPES record last updated: September 7, 2026. Verified against the NPPES registry weekly; last sync: September 13, 2026.

Record update history: Sep 7, 2026, Apr 10, 2023 (2 updates tracked since 2023).

About John-tod Harrison Surgeon NPPES

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

JOHN-TOD HARRISON SURGEON (NPI 1336834886) is an individual pediatric hematology-oncology provider in Chicago, Illinois, licensed in Illinois (125.087111) and active in the NPI registry since April 2023.

NPPES Registry Identity

NPI1336834886
Entity TypeIndividualMale
Primary Taxonomy2080P0207X
Provider Legal NameJOHN-TOD HARRISON SURGEON
Location Address225 E CHICAGO AVEChicago, IL 60611-2991
Mailing Address225 E Chicago AveChicago, IL 60611-2991 · (312) 227-4090
Phone(312) 227-4090
Sole ProprietorNo
Enumeration DateApril 10, 2023
Last NPPES UpdateSeptember 7, 20262 updates tracked since enumeration
NPPES CertifiedSeptember 7, 2026
✔ NPI 1336834886 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 · 125.087111
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 ↗

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 John-tod Surgeon's NPI number?

The NPI number for John-tod Surgeon is 1336834886. It was assigned to this individual provider in the NPPES registry on April 10, 2023.

Where is John-tod Surgeon located?

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

What is John-tod Surgeon's specialty?

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

When was this NPI record last updated?

The NPPES record for John-tod Surgeon was last updated on September 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.