Hematology
John Wallmark, M.D.
Laurel, MD
Dr. John Wallmark, MD is a Hematology Specialist who practices in Silver Spring, MD. He is 63 years old and has been practicing for 34 years.
30+
Years in Practice
Peer Recognition
- Castle Connolly — Top Doctor
2025-2026 (2 years)
Clinical Focus
Subspecialties
Hematology & Oncology
Conditions & Treatments
LeukemiaLymphomaMultiple MyelomaImmunotherapyHematologic MalignanciesLung Cancer
Practice Details
Hospital Affiliations
- Adventist HealthCare Shady Grove Medical Center
- Suburban Hospital
Experience
30+ years in practice