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ILLINOIS CANCER SPECIALISTS
NPI 1164483913
Internal Medicine - Hematology & Oncology in Niles, IL

Active since March 31, 2006
8915 W GOLF RD, NILES, IL 60714(847) 827-9060(847) 827-7196 Get Directions Write a Review

NPPES record last updated: March 17, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Mar 17, 2026, Dec 8, 2025 (2 updates tracked since 2025).

About Illinois Cancer Specialists NPPES

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

ILLINOIS CANCER SPECIALISTS (NPI 1164483913) is a healthcare organization registered as a hematology & oncology in Niles, Illinois and active in the NPI registry since March 2006. The organization lists David Hakimian, Practice President, as its authorized official.

NPPES Registry Identity

NPI1164483913
Entity TypeOrganization
Primary Taxonomy207RH0003X
Legal Business NameILLINOIS CANCER SPECIALISTS
Location Address8915 W GOLF RDNiles, IL 60714-5905
Mailing Address25070 Network PlChicago, IL 60673-1250 · (312) 520-4757 · Fax (847) 240-0622
Phone(847) 827-9060
Fax(847) 827-7196
Organization SubpartNo
Authorized OfficialDavid HakimianPractice President · (847) 585-7000
Enumeration DateMarch 31, 2006
Last NPPES UpdateMarch 17, 20262 updates tracked since enumeration
NPPES CertifiedMarch 17, 2026
✔ NPI 1164483913 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
Definition
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
8915 W GOLF RD, Niles, IL 60714
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Other Identifiers 1

Other1619809IL · Bcbs

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include MercyCare, MercyCare Health Plans.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Illinois Cancer Specialists is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

33

Medicare enrollment records show 33 clinicians reassign Medicare billing to Illinois Cancer Specialists, which bills Medicare for the services they deliver. Of these, 6 practice at this address and 20 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 5

Hematology/Oncology21
Nurse Practitioner8
Radiation Oncology2
Internal Medicine1
Medical Oncology1

Nearest to this location (20)

See all 33
Toreend Cozzi, DNP
Nurse Practitioner
NPI 1881460004
8915 W GOLF RD
Niles, IL 60714
(847) 827-9060
✔ PECOS✔ Accepts MedicareSame address
John Eklund, MD
Hematology/Oncology
NPI 1174510523
8915 W GOLF RD
Niles, IL 60714
(847) 827-9060
✔ PECOS✔ Accepts MedicareSame address
David Hakimian, MD
Hematology/Oncology
NPI 1972590347
8915 W GOLF RD
Niles, IL 60714
(847) 827-9060
✔ PECOS✔ Accepts MedicareSame address
Leonard Klein
Hematology/Oncology
NPI 1255328878
8915 W GOLF RD
Niles, IL 60714
(847) 827-9060
✔ PECOSSame address
Catherine Majcher
Nurse Practitioner
NPI 1861864175
8915 W GOLF RD
Niles, IL 60714
(847) 827-9060
✔ PECOS✔ Accepts MedicareSame address
Kristen Wendell, DO
Hematology/Oncology
NPI 1619219722
8915 W GOLF RD
Niles, IL 60714
(847) 827-9060
✔ PECOS✔ Accepts MedicareSame address
Sana Amlani, NP
Nurse Practitioner
NPI 1073102125
8915 W GOLF RD
Niles, IL 60714
(847) 809-4328
✔ PECOS✔ Accepts Medicare0.1 mi
Katarzyna Ofiara
Nurse Practitioner
NPI 1366987539
7447 W TALCOTT AVE STE 1
Chicago, IL 60631
(773) 774-0442
✔ PECOS✔ Accepts Medicare4.9 mi
Lisa Baddi, D.O.
Hematology/Oncology
NPI 1780683250
7447 W TALCOTT AVE SUITE 400
Chicago, IL 60631
(847) 965-3200
✔ PECOS✔ Accepts Medicare4.9 mi
Bety Ciobanu, MD
Internal Medicine
NPI 1205094968
7447 W TALCOTT AVE STE. #400
Chicago, IL 60631
(773) 763-9300
✔ PECOS✔ Accepts Medicare4.9 mi
Mark Karides, MD
Hematology/Oncology
NPI 1932206307
7447 W TALCOTT AVE SUITE ONE
Chicago, IL 60631
(773) 774-0042
✔ PECOS✔ Accepts Medicare4.9 mi
Irfan Mirza, MD
Hematology/Oncology
NPI 1134128036
7447 W TALCOTT AVE SUITE ONE
Chicago, IL 60631
(773) 774-2354
✔ PECOS✔ Accepts Medicare4.9 mi
Pian Moy, NP
Nurse Practitioner
NPI 1033762802
880 W CENTRAL RD STE 8200
Arlington Heights, IL 60005
(847) 259-4482
✔ PECOS✔ Accepts Medicare6.5 mi
Urszula Sobol, M.D.
Hematology/Oncology
NPI 1326203365
880 W CENTRAL RD SUITE 8200
Arlington Heights, IL 60005
(847) 259-4482
✔ PECOS✔ Accepts Medicare6.5 mi
Maria Colta
Nurse Practitioner
NPI 1912662651
800 W CENTRAL RD
Arlington Heights, IL 60005
(847) 618-1000
✔ PECOS✔ Accepts Medicare7.5 mi
Katrina Hillenbrand, APN-CNP
Nurse Practitioner
NPI 1770002099
800 W CENTRAL RD STE 8200
Arlington Heights, IL 60005
(847) 259-9967
✔ PECOS✔ Accepts Medicare7.5 mi
Rajat Malhotra, MD
Hematology/Oncology
NPI 1982693370
880 W CENTRAL RD STE 8200
Arlington Heights, IL 60005
(847) 259-4482
✔ PECOS✔ Accepts Medicare7.6 mi
Fatema Esmail
Hematology/Oncology
NPI 1265846737
880 W CENTRAL RD STE 8200
Arlington Heights, IL 60005
(847) 259-4482
✔ PECOS✔ Accepts Medicare7.6 mi
Randy Rich, MD
Hematology/Oncology
NPI 1609863281
880 W CENTRAL RD SUITE 8200
Arlington Heights, IL 60005
(847) 259-4482
✔ PECOS✔ Accepts Medicare7.6 mi
Richard Siegel, MD
Hematology/Oncology
NPI 1730176322
880 W CENTRAL RD SUITE 8200
Arlington Heights, IL 60005
(847) 259-4482
✔ PECOS✔ Accepts Medicare7.6 mi
See all 33 clinicians

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

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 Illinois Cancer Specialists's NPI number?

The NPI number for Illinois Cancer Specialists is 1164483913. It was assigned to this organization in the NPPES registry on March 31, 2006.

Where is Illinois Cancer Specialists located?

Illinois Cancer Specialists is located at 8915 W Golf Rd, Niles, IL 60714. The listed phone number is (847) 827-9060.

What is Illinois Cancer Specialists's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is Illinois Cancer Specialists enrolled in Medicare?

Yes. Illinois Cancer Specialists is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Illinois Cancer Specialists?

According to the CMS Revalidation Reassignment List (October 2026 release), 33 clinicians in 5 Medicare specialties reassign their Medicare billing to Illinois Cancer Specialists. A 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 the clinician's services. The largest specialties are Hematology/Oncology (21), Nurse Practitioner (8) and Radiation Oncology (2). Of these, 6 practice at this address and 20 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Illinois Cancer Specialists accept?

Health plans from MercyCare and MercyCare Health Plans list Illinois Cancer Specialists as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Illinois Cancer Specialists was last updated on March 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.