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DR. WILLIAM S O'REILLY M.D.
NPI 1437124625
Internal Medicine - Hematology & Oncology in Palos Heights, IL

Active since February 21, 2006PECOS Enrolled
12150 S HARLEM AVE, PALOS HEIGHTS, IL 60463(708) 361-4778 Get Directions Write a Review

NPPES record last updated: March 2, 2010. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. William S O'reilly M.d. NPPES

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

DR. WILLIAM S O'REILLY M.D. (NPI 1437124625) is an individual hematology & oncology provider in Palos Heights, Illinois, licensed in Illinois (036053590) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1437124625
Entity TypeIndividualMale
Primary Taxonomy207RH0003X
Provider Legal NameDR. WILLIAM S O'REILLYCredential: M.D.
Location Address12150 S HARLEM AVEPalos Heights, IL 60463-1435
Mailing Address12150 S Harlem AvePalos Heights, IL 60463-1435 · (708) 361-4778
Phone(708) 361-4778
Sole ProprietorNo
Enumeration DateFebruary 21, 2006
Last NPPES UpdateMarch 2, 2010
✔ NPI 1437124625 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
License✔ Licensed in IL · 036053590
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.
12150 S HARLEM AVE, Palos Heights, IL 60463
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Other Identifiers 1

Medicare UPIND14389IL

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. William S O'reilly M.d. 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60463 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$183.39 typical visit price
range $60.08 – $183.39
Typical copayment $45.84 (range $15.02 – $45.84)
Most-billed visit code 99205
Established Patient
$105.70 typical visit price
range $18.97 – $148.12
Typical copayment $26.42 (range $4.74 – $37.03)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 10

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ALPHA MED PHYSICIANS GROUP LLC
Specialist
12150 S HARLEM AVE
PALOS HEIGHTS, IL 60463
Cook County (708) 361-4778
DR. JAMES O DRAGUESKU M.D.
Internal Medicine (Gastroenterology)
12150 S HARLEM AVE
PALOS HEIGHTS, IL 60463
Cook County (708) 361-4778
OREILLY MEDICAL CONSULTANTS
Specialist
12150 S HARLEM AVE
PALOS HEIGHTS, IL 60463
Cook County (708) 361-4778
DR. DANIEL J OREILLY M.D.
Internal Medicine (Gastroenterology)
12150 S HARLEM AVE
PALOS HEIGHTS, IL 60463
Cook County (708) 361-4778
OREILLY MEDICAL CONSULTANTS SC
Internal Medicine (Hematology & Oncology)
12150 S HARLEM AVE
PALOS HEIGHTS, IL 60463
Cook County (708) 361-4778
OREILLY GASTROENTEROLOGY CONSULTANTS LLC
Internal Medicine (Gastroenterology)
12150 S HARLEM AVE
PALOS HEIGHTS, IL 60463
Cook County (708) 361-4778
WILLIAM KOSMALA M.D.
Internal Medicine (Gastroenterology)
12150 S HARLEM AVE
PALOS HEIGHTS, IL 60463
Cook County (708) 361-4778
MS. PATRICIA ROSE KEHOE NP
Nurse Practitioner
12150 S HARLEM AVE
PALOS HEIGHTS, IL 60463
Cook County (708) 342-1900

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 William O'reilly's NPI number?

The NPI number for William O'reilly is 1437124625. It was assigned to this individual provider in the NPPES registry on February 21, 2006.

Where is William O'reilly located?

William O'reilly practices at 12150 S Harlem Ave, Palos Heights, IL 60463. The listed phone number is (708) 361-4778.

What is William O'reilly's specialty?

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

Is William O'reilly enrolled in Medicare?

Yes. William O'reilly is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for William O'reilly was last updated on March 2, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.