Doctor Profile

Cancer Care · Hematology/Oncology

Robert A. Bayer

MD · Hematology/Oncology · Northwestern University Feinberg Medical School
10 HEALTH SERVICES DR
Dekalb, IL 60115
✓ Accepts Medicare 💻 Offers Telehealth 🎓 42+ Years Practicing
913
Medicare Patients / yr
11
Procedures Billed
42
Years Practicing
5
Hospital Affiliations
Data Source: Identity from NPPES (2026). Procedure & patient volume from CMS Medicare Provider Utilization & Payment Data (2023). Hospital affiliations from CMS Physician Compare. We display publicly reported data — no personal information required to view any of it.
Reviewed by: Wes Ward, Founder & Data Lead • View our methodology

Important: We are not affiliated with Medicare, CMS, or Robert A. Bayer's practice. This page displays publicly available CMS data to help you research Medicare providers. We do not sell insurance or represent any insurance company. For official enrollment and complete plan information, visit Medicare.gov or call 1-800-MEDICARE.

Medicare Plans That Cover Dr. Bayer

See which plans Dr. Bayer accepts

We're pulling plan acceptance data directly from insurance carrier provider directories. Until that feed is live for Illinois, the fastest way to find a Medicare plan that covers Dr. Bayer is to compare every Medicare Advantage and Part D plan available near 60115, IL — the Hematology/Oncology's office can quickly confirm which of the top local plans they accept.

Compare Medicare Plans near 60115, IL →

Or call the office at (815) 756-4722 to confirm acceptance directly.

What Dr. Bayer Does

Dr. Bayer served 913 Medicare patients across 1,426 services in the latest CMS reporting year. That's similar to the average Hematology/Oncology in Illinois (1,036 patients across 386 doctors).

ProcedureServicesMedicare Patients
Established patient office or other outpatient visit, 30-39 minutes (99214)367245
Established patient office or other outpatient visit, 40-54 minutes (99215)341178
Telephone medical discussion with physician, 21-30 minutes (99443)194128
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)12058
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)9545

How to read this: "Services" are the total times Dr. Bayer billed Medicare for each procedure in the latest reporting year. "Patients" counts unique Medicare beneficiaries. Procedures are shown in plain English; the underlying HCPCS codes are available on request.

Hospital Affiliations

Dr. Bayer is affiliated with 5 hospitals according to CMS Physician Compare. Below are the 5 hospitals with full quality profiles on our site. Hospital network status depends on your Medicare Advantage plan — always verify before enrolling.

Northwestern Medicine Central Dupage Hospital

Winfield, IL
★★★★★ 5/5 CMS Rating

Northwestern Medicine Delnor Community Hospital

Geneva, IL
★★★★★ 5/5 CMS Rating

Northwestern Medicine Mchenry

Mchenry, IL
★★★★★ 5/5 CMS Rating

Northwestern Medicine Kishwaukee Hospital

Dekalb, IL
★★★★☆ 4/5 CMS Rating

Valley West Community Hospital

Sandwich, IL
Rating not available

Practice Location & Telehealth Readiness

Dr. Bayer practices at the address below. If you're evaluating Medicare coverage, location matters for in-network access and — when Dr. Bayer offers telehealth — broadband availability at your home matters for virtual visits.

Address: 10 HEALTH SERVICES DR, Dekalb, IL 60115
Phone: (815) 756-4722

Area Safety Grade

C+

Block-level crime analysis from CrimeGrade.org.

Practice Accessibility

28 min

Average commute time in this zip · 87% of residents drive to work. Practical context for patients deciding whether to make the trip. See the full neighborhood profile at BestNeighborhood.org.

Telehealth Readiness

87.4227

Households with fiber broadband — important for reliable virtual visits. Check your address at ISPReports.org.

Get directions on Google Maps →

Other Cancer Care Doctors near 60115, IL

If Dr. Bayer isn't accepting new patients or isn't in your plan's network, these are the closest cancer care doctors near 60115, IL:

DoctorSpecialtyMedicare Patients / yrDistance
Amrit V. BhaskarlaHematology/Oncology2.8 mi
Faisal SaghirHematology/Oncology8572.8 mi
Mete KorkmazMedical Oncology92115.6 mi
Arlene D SouzaHematology/Oncology63821.8 mi
Habib ShaikhHematology/Oncology64321.8 mi

View all cancer care doctors near 60115, IL →

How to Use This Information

Choosing a Medicare plan that covers Dr. Bayer takes three steps:

Compare Medicare Plans near 60115, IL → All Doctors near 60115, IL

Robert A. Bayer: Common Questions

Does Dr. Bayer accept Medicare?
Yes. Dr. Bayer is enrolled with Medicare and listed in the CMS Provider Enrollment, Chain, and Ownership System (PECOS). Whether a specific Medicare Advantage plan covers Dr. Bayer depends on that plan's provider network. Compare Medicare plans near 60115, IL →
Where is Dr. Bayer's office?
Dr. Bayer practices at 10 HEALTH SERVICES DR, Dekalb, IL 60115. Phone: (815) 756-4722.
What Medicare plans does Dr. Bayer accept?
Original Medicare (Parts A & B) is accepted. Medicare Advantage plan acceptance varies by carrier and plan year. Call the office at (815) 756-4722 to confirm your specific plan is accepted, or compare all Medicare plans near 60115, IL to see available options.
Does Dr. Bayer offer telehealth visits?
Dr. Bayer is registered with Medicare as offering telehealth services. Most Medicare Advantage plans cover telehealth visits at the same or similar cost as in-person visits. Check broadband availability in your area to ensure reliable connectivity for video visits.
How experienced is Dr. Bayer?
Dr. Bayer graduated in 1984 and has been practicing for approximately 42 years. In the latest CMS reporting year, Dr. Bayer treated 913 Medicare patients across 11 distinct procedure types.
How do I know if Dr. Bayer is in-network for my Medicare plan?
Network status varies by plan. The best verification steps: (1) check your plan's provider directory at the carrier's website, (2) call the office at (815) 756-4722 and ask which plans they currently accept, and (3) call the number on the back of your Medicare card. Print our doctor questions checklist →

About the Reviewer

Wes Ward

Wes Ward

Founder & Data Lead

Wes Ward reviews all doctor profiles and methodology for data accuracy. Every Medicare provider page on this site — including the utilization statistics, hospital affiliations, and geocoded practice address — goes through his data-validation pipeline before publication. We display only publicly available CMS data; you never need to enter personal information to see any of it.

With 25+ years in data analytics — including work with highly regulated genomic data at Ancestry.com — Wes brings enterprise-level rigor to healthcare transparency. He is also a co-founder of BestNeighborhood.org (neighborhood data), CrimeGrade.org (block-level safety analytics), and ISPReports.org (broadband availability for telehealth). Those sister sites power the location and telehealth-readiness context on this page.

View full profile →LinkedIn

Data sources: CMS NPPES (2026), CMS Medicare Provider Utilization & Payment Data (2023), CMS Physician Compare, CrimeGrade.org, BestNeighborhood.org, ISPReports.org. This page is for informational purposes only. Always verify coverage directly with the plan and practice. Read our full methodology →Privacy policy

Medicare Resources

Choosing the right Medicare plan involves more than just doctor coverage. These guides help you evaluate the full picture:

Medicare Plans for Conditions Treated by Cancer Care Specialists

See which Medicare plans score highest for conditions commonly managed by this specialty in 60115, IL:

Does your Medicare plan cover Dr. Bayer?

Compare Plans near 60115, IL →