Pediatric Hematologists and Oncologists in Maryland
Data updated monthly · Last refresh October 2026
93 Pediatric Hematology & Oncology providers practice in Maryland, including 1 (1%) 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.
93providers
1telehealth
Baltimoretop city
Pediatric Hematology & Oncology by city in Maryland
Choose a city to see providers there.
Where Pediatric Hematologists and Oncologists in Maryland practice
From CMS Medicare enrollment records covering 20 of the 93 providers listed here (22%). Providers who do not bill Medicare are not included in these figures.
Largest practice groups
| Group (as registered with Medicare) | Pediatric Hematologists and Oncologists | All clinicians in group | Main city |
| Johns Hopkins University | 16 | 2,886 | Baltimore |
| Sinai Hospital of Baltimore, Inc. | 2 | 373 | Baltimore |
| University of Maryland Pediatric Associates, PA | 2 | 53 | Baltimore |
Hospitals where they hold privileges
| Hospital | City | Ownership | CMS star rating | Pediatric Hematologists and Oncologists affiliated |
| Johns Hopkins Hospital, the | Baltimore | Nonprofit | 5 of 5 | 3 |
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.
Pediatric Hematology & 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. Abdulhafiz Zakieh, M.D.Baltimore, MD · No drug or device payments recorded (2025) ·
(410) 955-8751 Dr. Alan Friedman, M.D.Baltimore, MD · No drug or device payments recorded (2025) ·
(410) 955-2095 Dr. Beth Carella, D.O.Baltimore, MD · No drug or device payments recorded (2025) ·
(410) 328-2808 Dr. Brian Ladle, M.D., PHDBaltimore, MD · No drug or device payments recorded (2025) ·
(410) 955-8751 Dr. Cara Rabik, M.D., PH.D.Baltimore, MD · No drug or device payments recorded (2025) ·
(410) 614-5055 Dr. Challice Bonifant, MD, PHDBaltimore, MD · No drug or device payments recorded (2025) ·
(410) 955-2813 Dr. Chelsea Lamplugh, MDBaltimore, MD · No drug or device payments recorded (2025) ·
(410) 955-8751 Dr. Christine Pratilas, MDBaltimore, MD · No drug or device payments recorded (2025) ·
(410) 955-8751 Dr. Christopher Gamper, M.D., PH.D.Baltimore, MD · No drug or device payments recorded (2025) ·
(410) 955-8751 Dr. Courtney Fitzhugh, M.D.Baltimore, MD · No drug or device payments recorded (2025) ·
(410) 644-5055 Dr. Edward Allan Sison, MDBaltimore, MD · No drug or device payments recorded (2025) ·
(410) 955-8751 Dr. Emily Rao, MDBaltimore, MD · No drug or device payments recorded (2025) ·
(410) 955-6513 Dr. Eric Raabe, M.D.Baltimore, MD · $2,669 in drug and device payments (2025) ·
(410) 614-5055 Dr. Francis Mussai, BM BCHBaltimore, MD · No drug or device payments recorded (2025) ·
(410) 614-5055 Dr. George Dover, M.D.Baltimore, MD · No drug or device payments recorded (2025) ·
(410) 955-6132 Dr. Heather Symons, M.D.Baltimore, MD · $239 in drug and device payments (2025) ·
(410) 955-8751 Dr. Ido Paz Priel, M.D.Baltimore, MD · No drug or device payments recorded (2025) ·
(410) 955-2457 Dr. James Badgett, M.D.Baltimore, MD · $1,233 in drug and device payments (2025) ·
(410) 614-5055 Dr. James Casella, M.D.Baltimore, MD · No drug or device payments recorded (2025) ·
(410) 955-6132 Dr. Jason Fixler, M.D.Baltimore, MD · No drug or device payments recorded (2025) ·
(410) 601-5864 Dr. Jennie Hart, M.D.Baltimore, MD · No drug or device payments recorded (2025) ·
(410) 601-2112 Dr. Jennifer Keates-baleeiro, MDBaltimore, MD · No drug or device payments recorded (2025) ·
(410) 955-6132 Dr. John Ligon, M.D.Baltimore, MD · $1,978 in drug and device payments (2025) ·
(410) 955-8751 Dr. Joseph Wiley, M.D.Baltimore, MD · No drug or device payments recorded (2025) ·
(410) 601-5303 Dr. Josiah Ballantine, MDBaltimore, MD · No drug or device payments recorded (2025) ·
(410) 955-5000 Dr. Kathryn Duke, DNP, CPNP ACBaltimore, MD · No drug or device payments recorded (2025) ·
(410) 955-5500 Dr. Kathryn Lemberg, MDBaltimore, MD · No drug or device payments recorded (2025) ·
(410) 955-8751 Dr. Kenneth Cohen, M.D.Baltimore, MD · $4,550 in drug and device payments (2025) ·
(410) 955-6132 Dr. Kenneth Cooke, MDBaltimore, MD · $398 in drug and device payments (2025) ·
(443) 287-2949 Dr. Kristen Schratz, M.D.Baltimore, MD · No drug or device payments recorded (2025) ·
(410) 955-8751 Dr. Lea Cunningham, MDBaltimore, MD · No drug or device payments recorded (2025) ·
(215) 518-8758 Dr. Leigh Marcus, M.D.Baltimore, MD · No drug or device payments recorded (2025) ·
(410) 614-5055 Dr. Linda Smith-resarBaltimore, MD · No drug or device payments recorded (2025) ·
(410) 955-6132 Dr. Lisa Faulcon, MDBaltimore, MD · No drug or device payments recorded (2025) ·
(410) 955-6132 Dr. Lydia Pecker, MDBaltimore, MD · $21,634 in drug and device payments (2025) · Telehealth ·
(410) 955-6132 Dr. Matthew Merguerian, M.D., PH.D.Baltimore, MD · No drug or device payments recorded (2025) ·
(410) 955-6132 Dr. Meredith Chuk, MEREDITH CHUK, M.D.Baltimore, MD · No drug or device payments recorded (2025) ·
(410) 955-8751 Dr. Micah Maxwell, MD, PHDBaltimore, MD · No drug or device payments recorded (2025) ·
(410) 614-5055 Dr. Michael Koldobskiy, M.D., PH.D.Baltimore, MD · No drug or device payments recorded (2025) ·
(410) 614-4493 Dr. Mikaela HairstonBaltimore, MD · No drug or device payments recorded (2025) ·
(410) 955-5000 Dr. Nicolas Llosa, M.D.Baltimore, MD · No drug or device payments recorded (2025) ·
(410) 502-8104 Dr. Patience Odeniyide, MDBaltimore, MD · No drug or device payments recorded (2025) ·
(410) 614-5055 Dr. Regina Macatangay, MDBaltimore, MD · $19 in drug and device payments (2025) ·
(410) 328-2808 Dr. Robyn Gartrell, MDBaltimore, MD · No drug or device payments recorded (2025) ·
(410) 955-2548 Dr. Ronald Kline, MDBaltimore, MD · $22 in drug and device payments (2025) ·
(410) 328-2808 Dr. Sarah WattBaltimore, MD · No drug or device payments recorded (2025) ·
(410) 955-8751 Dr. Stacy CooperBaltimore, MD · $1,784 in drug and device payments (2025) ·
(410) 955-5000 Dr. Stephanie Omokaro, M.D.Baltimore, MD · No drug or device payments recorded (2025) ·
(410) 614-5055 Dr. Teresa York, MDBaltimore, MD · $85 in drug and device payments (2025) ·
(410) 328-2808 Dr. Wilson Vasconez Samaniego, MDBaltimore, MD · $737 in drug and device payments (2025) ·
(410) 614-5055 Common questions
How many Pediatric Hematology & Oncology providers are in Maryland?There are 93 Pediatric Hematology & Oncology providers with active NPI records practicing in Maryland, according to federal NPPES data refreshed monthly.
Do Pediatric Hematology & Oncology providers in Maryland offer telehealth?Yes. 1 of the 93 Pediatric Hematology & Oncology providers in Maryland (about 1%) report offering telehealth services in CMS data.
Which cities in Maryland have the most Pediatric Hematology & Oncology providers?Baltimore (54), Bethesda (26), Rockville (4) have the highest concentration of Pediatric Hematology & Oncology providers in Maryland.
How many Pediatric Hematology & Oncology providers in Maryland received drug or device company payments?15 of 93 Pediatric Hematology & Oncology providers in Maryland (16%) 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.
Which hospitals do Pediatric Hematologists and Oncologists in Maryland work at?According to CMS facility affiliation records, the Maryland hospitals where the most Pediatric Hematologists and Oncologists hold privileges are Johns Hopkins Hospital, the in Baltimore.
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