Doctor Profile

Cancer Care · Radiation Oncology

Andrej Zajac

MD · Radiation Oncology · Jefferson Medical College Of Thomas Jefferson University
1500 S LAKE PARK AVE
Hobart, IN 46342
✓ Accepts Medicare 🎓 45+ Years Practicing
1.0K
Medicare Patients / yr
19
Procedures Billed
45
Years Practicing
3
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 Andrej Zajac'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. Zajac

See which plans Dr. Zajac accepts

We're pulling plan acceptance data directly from insurance carrier provider directories. Until that feed is live for Indiana, the fastest way to find a Medicare plan that covers Dr. Zajac is to compare every Medicare Advantage and Part D plan available near 46342, IN — the Radiation Oncology's office can quickly confirm which of the top local plans they accept.

Compare Medicare Plans near 46342, IN →

Or call the office at (219) 947-6685 to confirm acceptance directly.

What Dr. Zajac Does

Dr. Zajac served 1,035 Medicare patients across 2,527 services in the latest CMS reporting year. That's 38% above the average Radiation Oncology in Indiana (748 patients across 102 doctors).

ProcedureServicesMedicare Patients
Calculation of radiation therapy dose (77300)484100
Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy (G6002)37240
Radiation treatment management, 5 treatment sessions (77427)35298
Design and construction of complex radiation treatment device (77334)287108
Ct guidance for insertion of radiation therapy fields (77014)18541

How to read this: "Services" are the total times Dr. Zajac 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. Zajac is affiliated with 3 hospitals according to CMS Physician Compare. Below are the 3 hospitals with full quality profiles on our site. Hospital network status depends on your Medicare Advantage plan — always verify before enrolling.

Community Hospital

Munster, IN
★★★☆☆ 3/5 CMS Rating

St Catherine Hospital Inc

East Chicago, IN
★★★☆☆ 3/5 CMS Rating

St Mary Medical Center Inc

Hobart, IN
★★★☆☆ 3/5 CMS Rating

Practice Location & Telehealth Readiness

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

Address: 1500 S LAKE PARK AVE, Hobart, IN 46342
Phone: (219) 947-6685

Area Safety Grade

C-

Block-level crime analysis from CrimeGrade.org.

Practice Accessibility

33 min

Average commute time in this zip · 95% 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

58.4281

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 46342, IN

If Dr. Zajac isn't accepting new patients or isn't in your plan's network, these are the closest cancer care doctors near 46342, IN:

DoctorSpecialtyMedicare Patients / yrDistance
Robert T. WoodburnRadiation Oncology3781.3 mi
Virag DandekarRadiation Oncology1.3K1.3 mi
Mia A. LevyMedical Oncology385.4 mi
Mahendra M. ShahHematology/Oncology226.1 mi
Kaitlin QuallsRadiation Oncology6.3 mi

View all cancer care doctors near 46342, IN →

How to Use This Information

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

Compare Medicare Plans near 46342, IN → All Doctors near 46342, IN

Andrej Zajac: Common Questions

Does Dr. Zajac accept Medicare?
Yes. Dr. Zajac is enrolled with Medicare and listed in the CMS Provider Enrollment, Chain, and Ownership System (PECOS). Whether a specific Medicare Advantage plan covers Dr. Zajac depends on that plan's provider network. Compare Medicare plans near 46342, IN →
Where is Dr. Zajac's office?
Dr. Zajac practices at 1500 S LAKE PARK AVE, Hobart, IN 46342. Phone: (219) 947-6685.
What Medicare plans does Dr. Zajac accept?
Original Medicare (Parts A & B) is accepted. Medicare Advantage plan acceptance varies by carrier and plan year. Call the office at (219) 947-6685 to confirm your specific plan is accepted, or compare all Medicare plans near 46342, IN to see available options.
Does Dr. Zajac offer telehealth visits?
CMS does not currently list Dr. Zajac as offering telehealth. Call the office at (219) 947-6685 to confirm whether virtual visits are available.
How experienced is Dr. Zajac?
Dr. Zajac graduated in 1981 and has been practicing for approximately 45 years. In the latest CMS reporting year, Dr. Zajac treated 1,035 Medicare patients across 19 distinct procedure types.
How do I know if Dr. Zajac 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 (219) 947-6685 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 46342, IN:

Does your Medicare plan cover Dr. Zajac?

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