NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Hematology-Oncology Consultants, Ltd.

Hematology & Oncology Physician in Naperville, IL · enumerated 2006 · authorized official Dilly Irani, Office Manager.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1386749265

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Hematology-Oncology Consultants, Ltd.
Practice address 100 Spalding Drive, Suite 110, Naperville, IL, 60540
Phone (630) 369-1501
Fax (630) 369-1560
Enumeration date Sep 14, 2006
Last updated in NPPES Jun 24, 2008

Taxonomy & classification

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Dilly Irani
Title Office Manager
Phone (630) 369-1501

Other identifiers

Identifier Type State Issuer
2201401 Other IL BS

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What type of organization is Hematology-Oncology Consultants, Ltd.?
Hematology-Oncology Consultants, Ltd. is registered in NPPES as a Hematology & Oncology Physician (its primary provider taxonomy).
What is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-06-24.