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Radiation Oncologists in Delaware

Data updated monthly · Last refresh October 2026

19 Radiation Oncology providers practice in Delaware, including 1 (5%) offering telehealth. The largest concentration is in Newark. Profiles include federal Open Payments records of money received from drug and device companies in 2025. Listings are drawn from federal public records and are not endorsements.

19providers
1telehealth
Newarktop city

Radiation Oncology by city in Delaware

Choose a city to see providers there.

Radiation Oncology in Newark9 providers
Radiation Oncology in Dover6 providers
Radiation Oncology in Rehoboth Beach4 providers

Where Radiation Oncologists in Delaware practice

From CMS Medicare enrollment records covering 15 of the 19 providers listed here (79%). Providers who do not bill Medicare are not included in these figures.

27%solo or small practice (under 10 clinicians)
47%mid-size group (10 to 99)
27%large group or health system (100+)

Largest practice groups

Group (as registered with Medicare)Radiation OncologistsAll clinicians in groupMain city
Radiation Oncologists, PA712Newark
Bayhealth Medical Center, Inc.4399Dover
Delmarva Radiation Services, PA33Rehoboth Beach

Hospitals where they hold privileges

HospitalCityOwnershipCMS star ratingRadiation Oncologists affiliated
Christiana HospitalNewarkNonprofit4 of 58
Bayhealth Hospital, Sussex CampusMilfordNonprofit3 of 57
Beebe Medical CenterLewesNonprofit3 of 56
Bayhealth Medical Center, Kent CampusDoverNonprofit2 of 55

Sources: CMS Doctors and Clinicians (August 2026) and Facility Affiliation files (August 2026); hospital ownership type and overall star rating from CMS Hospital General Information (July 2026). A clinician in several groups is counted once, in the largest group they bill through. Ownership type is what the hospital reports to CMS; it does not show private equity or other investor ownership. How we build this directory.

Radiation Oncology providers in Delaware

Listed by city, largest first. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.

Dr. David Suh, M.D.
Dover, DE · No drug or device payments recorded (2025) · (302) 674-4401
Dr. Donald Tilton, D.O.
Dover, DE · No drug or device payments recorded (2025) · (302) 674-4401
Dr. John Lahaniatis, M.D.
Dover, DE · No drug or device payments recorded (2025) · Telehealth · (302) 674-4401
Dr. Khanh Nguyen, MD
Dover, DE · $19 in drug and device payments (2025) · (302) 674-4401
Dr. Tony Lee, MD
Dover, DE · $184 in drug and device payments (2025) · (302) 674-4401
Dr. Yangyang Shi, MD
Dover, DE · No drug or device payments recorded (2025) · (302) 674-4401
Dr. Adam Raben, M.D.
Newark, DE · $48 in drug and device payments (2025) · (302) 623-4800
Dr. Christopher Koprowski, M.D.
Newark, DE · No drug or device payments recorded (2025) · (302) 623-4800
Dr. Gaurav Shukla, M.D., PH.D.
Newark, DE · $511 in drug and device payments (2025) · (302) 623-4800
Dr. Jon Strasser, M.D.
Newark, DE · $46,920 in drug and device payments (2025) · (302) 623-4800
Dr. Lana De Souza Lawrence, M.D.
Newark, DE · $76 in drug and device payments (2025) · (302) 623-4800
Dr. Lindsay Romak, M.D.
Newark, DE · $980 in drug and device payments (2025) · (860) 930-9413
Dr. Monica Chelius, MD
Newark, DE · No drug or device payments recorded (2025) · (302) 623-4532
Dr. Sunjay Shah, M.D.
Newark, DE · $752 in drug and device payments (2025) · (302) 623-4800
Dr. Viroon Donavanik, M.D.
Newark, DE · No drug or device payments recorded (2025) · (302) 623-4800
Dr. Andrejs Strauss, M.D.
Rehoboth Beach, DE · $851 in drug and device payments (2025) · (302) 645-3775
Dr. Jennifer Hung, M.D.
Rehoboth Beach, DE · $174 in drug and device payments (2025) · (302) 645-3775
Dr. Owen Thomas, MD
Rehoboth Beach, DE · $333 in drug and device payments (2025) · (302) 645-3775
Dr. Samuel Swisher-mcclure, MD
Rehoboth Beach, DE · $34 in drug and device payments (2025) · (302) 645-3775

Common questions

How many Radiation Oncology providers are in Delaware?

There are 19 Radiation Oncology providers with active NPI records practicing in Delaware, according to federal NPPES data refreshed monthly.

Do Radiation Oncology providers in Delaware offer telehealth?

Yes. 1 of the 19 Radiation Oncology providers in Delaware (about 5%) report offering telehealth services in CMS data.

Which cities in Delaware have the most Radiation Oncology providers?

Newark (9), Dover (6), Rehoboth Beach (4) have the highest concentration of Radiation Oncology providers in Delaware.

Where does this data come from?

Provider counts and profiles come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.

Do most Radiation Oncologists in Delaware work in independent practices or large health systems?

Among 15 Radiation Oncologists in Delaware enrolled in Medicare, 27% bill through a solo or small practice with fewer than 10 clinicians, 47% through a mid-size group of 10 to 99, and 27% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.

Which hospitals do Radiation Oncologists in Delaware work at?

According to CMS facility affiliation records, the Delaware hospitals where the most Radiation Oncologists hold privileges are Christiana Hospital in Newark; Bayhealth Hospital, Sussex Campus in Milford; Beebe Medical Center in Lewes.

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Sources: NPPES (CMS), Doctors and Clinicians national files, CMS Open Payments 2025. Updated monthly. Records are public federal data and are not verified credentials, licensure checks, or endorsements. This directory is informational and not medical advice. How we build this directory. Are you a Radiation Oncology in Delaware? Get featured.