Oncologists in Maryland
Data updated monthly · Last refresh October 2026
222 Medical Oncology providers practice in Maryland, including 88 (40%) offering telehealth. The largest concentration is in Baltimore. 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.
222providers
88telehealth
Baltimoretop city
Medical Oncology by city in Maryland
Choose a city to see providers there.
Where Oncologists in Maryland practice
From CMS Medicare enrollment records covering 108 of the 222 providers listed here (49%). Providers who do not bill Medicare are not included in these figures.
2%solo or small practice (under 10 clinicians)
17%mid-size group (10 to 99)
81%large group or health system (100+)
Largest practice groups
| Group (as registered with Medicare) | Oncologists | All clinicians in group | Main city |
| Johns Hopkins University | 63 | 2,886 | Baltimore |
| Johns Hopkins University | 12 | 196 | Bethesda |
| University of Maryland Oncology Associates PA | 11 | 61 | Baltimore |
| Maryland Oncology Hematology PA | 10 | 96 | Columbia |
| American Oncology Partners PA | 4 | 377 | Germantown |
Hospitals where they hold privileges
| Hospital | City | Ownership | CMS star rating | Oncologists affiliated |
| Johns Hopkins Hospital, the | Baltimore | Nonprofit | 5 of 5 | 65 |
| Johns Hopkins Bayview Medical Center | Baltimore | Nonprofit | 3 of 5 | 20 |
| University of Maryland Medical Center | Baltimore | Nonprofit | 3 of 5 | 14 |
| University of MD Shore Medical Center at Easton | Easton | Nonprofit | 4 of 5 | 7 |
| Suburban Hospital | Bethesda | Nonprofit | 4 of 5 | 5 |
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.
Medical Oncology providers in Maryland
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. Carol Tweed, MDAnnapolis, MD · $15,272 in drug and device payments (2025) · Telehealth ·
(410) 573-5300 Dr. Jason Taksey, M.D.Annapolis, MD · $1,061 in drug and device payments (2025) · Telehealth ·
(410) 573-5300 Dr. Martin Rosman, M.D.Annapolis, MD · No drug or device payments recorded (2025) ·
(443) 481-5312 Dr. Stanley Watkins, Jr, M.D.Annapolis, MD · No drug or device payments recorded (2025) ·
(410) 571-5300 Dr. Adrian Murphy, MB BSBaltimore, MD · No drug or device payments recorded (2025) ·
(410) 955-8893 Dr. Allen Chen, M.D.Baltimore, MD · No drug or device payments recorded (2025) ·
(410) 955-8751 Dr. Amir Ameri, MDBaltimore, MD · $114 in drug and device payments (2025) ·
(410) 955-5000 Dr. Amy Dezern, MDBaltimore, MD · $20,446 in drug and device payments (2025) · Telehealth ·
(410) 955-8964 Dr. Ana De Jesus Acosta, M.D.Baltimore, MD · $2,418 in drug and device payments (2025) · Telehealth ·
(410) 955-8964 Dr. Arif Hussain, M.D.Baltimore, MD · $39 in drug and device payments (2025) · Telehealth ·
(410) 328-7225 Dr. Arlene Forastiere, M.D.Baltimore, MD · No drug or device payments recorded (2025) ·
(410) 955-8964 Dr. Ashraf Badros, M.D.Baltimore, MD · $1,342 in drug and device payments (2025) · Telehealth ·
(410) 328-1230 Dr. Atul Bedi, M.D.Baltimore, MD · No drug or device payments recorded (2025) ·
(410) 955-8964 Dr. Brittany Kenny, CRNPBaltimore, MD · No drug or device payments recorded (2025) ·
(410) 955-5000 Dr. Bruce Smith, M.D.Baltimore, MD · $14,868 in drug and device payments (2025) · Telehealth ·
(410) 955-8964 Dr. Candace Mainor, M.D.Baltimore, MD · No drug or device payments recorded (2025) · Telehealth ·
(410) 328-6110 Dr. Carole Miller, MDBaltimore, MD · $83 in drug and device payments (2025) · Telehealth ·
(667) 234-2910 Dr. Carol Huff, M.D.Baltimore, MD · $8,984 in drug and device payments (2025) · Telehealth ·
(410) 955-8964 Dr. Catherine Marshall, MDBaltimore, MD · $2,113 in drug and device payments (2025) · Telehealth ·
(410) 955-0239 Dr. Cesar Santa-maria, MDBaltimore, MD · $134 in drug and device payments (2025) · Telehealth ·
(410) 955-8489 Dr. Christian Gocke, M.D., PH.D.Baltimore, MD · $43 in drug and device payments (2025) · Telehealth ·
(410) 955-5000 Dr. Christian Meyer, M.D., PH. D.Baltimore, MD · $10,585 in drug and device payments (2025) · Telehealth ·
(410) 502-5940 Dr. Christopher Hourigan, MD DPHILBaltimore, MD · $10,614 in drug and device payments (2025) ·
(410) 955-5000 Dr. Curt Civin, M.D.Baltimore, MD · No drug or device payments recorded (2025) ·
(410) 955-8751 Dr. Daniel Laheru, M.D.Baltimore, MD · No drug or device payments recorded (2025) · Telehealth ·
(410) 955-8964 Dr. Daniel ShuBaltimore, MD · $186 in drug and device payments (2025) · Telehealth ·
(410) 955-7911 Dr. Daniel Suzman, MDBaltimore, MD · No drug or device payments recorded (2025) ·
(410) 955-8893 Dr. Daniel ZabranskyBaltimore, MD · No drug or device payments recorded (2025) ·
(410) 955-7911 Dr. David Loeb, M.D.Baltimore, MD · No drug or device payments recorded (2025) ·
(410) 955-8751 Dr. David Riseberg, MDBaltimore, MD · $14,866 in drug and device payments (2025) · Telehealth ·
(410) 783-5858 Dr. David Sidransky, M.D.Baltimore, MD · No drug or device payments recorded (2025) ·
(410) 502-5153 Dr. Diana Griffiths, MDBaltimore, MD · No drug or device payments recorded (2025) ·
(410) 368-2911 Dr. Diane Reyes-dagherBaltimore, MD · No drug or device payments recorded (2025) · Telehealth ·
(410) 502-3137 Dr. Donald Small, M.D.Baltimore, MD · No drug or device payments recorded (2025) ·
(410) 955-6132 Dr. Douglas Gladstone, M.D.Baltimore, MD · $5,633 in drug and device payments (2025) · Telehealth ·
(443) 287-6471 Dr. Dung Le, M.D.Baltimore, MD · $1,465 in drug and device payments (2025) · Telehealth ·
(410) 287-0002 Dr. Edward Sausville, M.D.Baltimore, MD · No drug or device payments recorded (2025) ·
(410) 328-7394 Dr. Elias Zambidis, M.D., PH.D.Baltimore, MD · No drug or device payments recorded (2025) ·
(410) 955-6132 Dr. Elizabeth Jaffee, M.D.Baltimore, MD · No drug or device payments recorded (2025) ·
(410) 955-8964 Dr. Enser Cole, MDBaltimore, MD · No drug or device payments recorded (2025) ·
(667) 234-3416 Dr. Ephraim Fuchs, M.D.Baltimore, MD · $1,855 in drug and device payments (2025) · Telehealth ·
(410) 955-8964 Dr. Eugene Shenderov, M.D., PHDBaltimore, MD · $43 in drug and device payments (2025) · Telehealth ·
(410) 614-4459 Dr. Evan Lipson, MDBaltimore, MD · $36,297 in drug and device payments (2025) · Telehealth ·
(410) 955-8893 Dr. Gabriel Ghiaur, MDBaltimore, MD · No drug or device payments recorded (2025) ·
(410) 955-4199 Dr. Gary Cohen, M.D.Baltimore, MD · No drug or device payments recorded (2025) ·
(443) 849-3051 Dr. Govind Warrier, MD, MPHBaltimore, MD · $116 in drug and device payments (2025) · Telehealth ·
(410) 955-8964 Dr. Heather Mannuel, MDBaltimore, MD · No drug or device payments recorded (2025) · Telehealth ·
(410) 328-2567 Dr. Hyam Levitsky, M.D.Baltimore, MD · No drug or device payments recorded (2025) ·
(410) 955-8964 Dr. Ikumi Suzuki, M.D.Baltimore, MD · $148 in drug and device payments (2025) · Telehealth ·
(410) 328-5756 Dr. Jacquelyn Zimmerman, MD, PHDBaltimore, MD · No drug or device payments recorded (2025) ·
(410) 955-3613 Common questions
How many Medical Oncology providers are in Maryland?There are 222 Medical Oncology providers with active NPI records practicing in Maryland, according to federal NPPES data refreshed monthly.
Do Medical Oncology providers in Maryland offer telehealth?Yes. 88 of the 222 Medical Oncology providers in Maryland (about 40%) report offering telehealth services in CMS data.
Which cities in Maryland have the most Medical Oncology providers?Baltimore (130), Bethesda (35), Silver Spring (10) have the highest concentration of Medical Oncology providers in Maryland.
How many Medical Oncology providers in Maryland received drug or device company payments?88 of 222 Medical Oncology providers in Maryland (40%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.
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 Oncologists in Maryland work in independent practices or large health systems?Among 108 Oncologists in Maryland enrolled in Medicare, 2% bill through a solo or small practice with fewer than 10 clinicians, 17% through a mid-size group of 10 to 99, and 81% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do Oncologists in Maryland work at?According to CMS facility affiliation records, the Maryland hospitals where the most Oncologists hold privileges are Johns Hopkins Hospital, the in Baltimore; Johns Hopkins Bayview Medical Center in Baltimore; University of Maryland Medical Center in Baltimore.
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