Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Richard S Siegel, MD

Individual provider Hematology & Oncology Physician · NPI 1730176322

Richard S Siegel, MD practises Hematology/Oncology in Arlington Heights, Illinois. Graduated from University of Michigan Medical School in 1993, 33 years ago. Practices with Illinois Cancer Specialists, a 26-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
33
Trained at
University of Michigan Medical School
Licensed in
IL
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

880 W Central Rd Ste 8200
Arlington Heights, IL 60005-2355
Phone: (847) 259-4482
Fax: (847) 259-6406
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence 036093052 (IL)

Record details

NPI number1730176322
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 29, 2005
Last updated in NPPESDecember 17, 2021
Certification dateDecember 17, 2021

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyHEMATOLOGY/ONCOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY OF MICHIGAN MEDICAL SCHOOL
Graduated 1993 (33 years in practice)
Group practice Illinois Cancer Specialists — 26 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients778
Average patient age77

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $1,852 75 payments · a meal or drink at a meeting or visit, not a fee
Education $396 5 payments · educational material or training, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Northwest Community Hospital 1 Hospital · Arlington Heights, IL · listed as Northwest Community Hospital
  • Residential Home Health Home health agency · Schaumburg, IL · listed as Residential Home Health Illinois, LLC
  • Northwestern Medicine Central Dupage Hospital Hospital · Winfield, IL
  • Northwestern Medicine McHenry Hospital · McHenry, IL

Colleagues at Illinois Cancer Specialists

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 26 clinicians in the practice; 12 are shown here.

Other providers in Arlington Heights