Accepting new patients

Dr. John Wallmark, MD

Hematology ·  Male · Age 55

Dr. Wallmark

Associates Oncology Hemotology

6420 Rockledge Dr Ste 4200 Bethesda, MD 20817

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Dr. John Wallmark, MD is a hematology specialist in Bethesda, MD and has been practicing for 27 years. He graduated from Hahnemann School Of Medicine, Allegheny University Of Health Sciences in 1992 and specializes in hematology and oncology.


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Dr. Wallmark accepts

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(301) 424-6231

Dr. Wallmark accepts the following insurance:

Aetna
Aetna HMO
Choice Plus POS II
Select
Anthem Blue Cross Blue Shield
KeyCare PPO
Blue Cross Blue Shield
Blue Card PPO
CareFirst Blue Cross Blue Shield
Blue Choice Advantage
Blue Preferred PPO
CareFirst Maryland POS
Cigna
Cigna HMO
Cigna PPO
Open Access Plus
Coventry Health Care
Southern Health PPO
MultiPlan
MultiPlan PPO
PHCS Network PPO

Background Check

Healthgrades does not collect malpractice claims information for Maryland
No disciplinary actions found for the years we collect data
No board actions found for the years we collect data
Learn more about background checks

Experience Check

Check Dr. Wallmark's experience treating your condition or procedure

Dr. Wallmark's Top Procedures and Conditions

Treatment Frequency
Deep Vein Thrombosis (DVT)
very high
very high

Treatment Frequency

Dr. Wallmark treats Deep Vein Thrombosis (DVT) more than 100% of his peers

Dr. Wallmark treats this condition more than 100% of his peers

Colorectal Cancer
very high
very high

Treatment Frequency

Dr. Wallmark treats Colorectal Cancer more than 100% of his peers

Dr. Wallmark treats this condition more than 100% of his peers

Rating Includes other areas of care:

  • Distal Colorectal Cancer
  • Familial Colorectal Cancer
  • Hamartomatous Colorectal Cancer
  • MSI-H Colorectal Cancer
  • MSI-L Colorectal Cancer
  • MSS Colorectal Cancer
  • Nonpolyposis Colorectal Cancer, Familial
  • Rectal Cancer
  • Sporadic Colorectal Cancer
Thrombosis
very high
very high

Treatment Frequency

Dr. Wallmark treats Thrombosis more than 100% of his peers

Dr. Wallmark treats this condition more than 100% of his peers

Rating Includes other areas of care:

  • Aortic Embolism and Thrombosis
  • Arterial Thrombosis
  • Budd-Chiari Syndrome
  • Cerebral Artery Thrombosis
  • Deep Vein Thrombosis (DVT)
  • Effort Vein Thrombosis
  • Intracranial Venous Thrombosis
  • Peripheral Arterial Embolism and Thrombosis
  • Portal Vein Thrombosis
  • Renal Vein Thrombosis
  • Thromboembolism
  • Venous Embolism and Thrombosis
  • Venous Thrombosis

Dr. Wallmark's conditions and procedures:

  • Acute Leukemia
  • Acute Myeloid Leukemia
  • Adrenal Gland Cancer
  • All Lymphoma
  • Anal and Rectal Cancer
  • Anal Disorders
  • Anemia
  • Autoimmune Diseases
  • Bladder Cancer
  • Bleeding Disorders
  • Blood Disorders
  • Bone Cancer
  • Bone Disorders
  • Bone Marrow Biopsy
  • Brain and Nervous System Cancer (incl. Gliomas, Astrocytoma, Schwannoma, Medulloblastoma, Chordoma)
  • Brain Cancer
  • Brain Disorders
  • Breast Cancer
  • Breast Diseases
  • Cancer
  • Central Nervous System Lymphoma
  • Cervical Cancer
  • Chronic Lymphocytic Leukemia
  • Chronic Myeloid Leukemia (CML)
  • Coagulation Disorders (incl. Hemophilia)
  • Colorectal Cancer
  • Deep Vein Thrombosis (DVT)
  • Esophageal Cancer
  • Esophageal Diseases
  • Fallopian Tube Cancer
  • Gallbladder and Biliary Tract Cancer
  • Gallbladder Cancer
  • Gastrointestinal Diseases
  • Gynecologic Cancer
  • Head and Neck Cancer
  • Hemophilia
  • Hypercoagulable State
  • Immune Thrombocytopenic Purpura (ITP)
  • Kidney Cancer
  • Laryngeal Cancer
  • Larynx Conditions
  • Leukocytosis
  • Liver Cancer
  • Lung Cancer
  • Lymphoma, Large-Cell
  • Malignant Histiocytosis
  • Mantle Cell Lymphoma
  • Marginal Zone Lymphoma
  • Melanoma
  • Multiple Myeloma
  • Myelodysplastic Syndromes
  • Myeloproliferative Disorders
  • Neuroendocrine Tumors
  • Neutropenia
  • Nodular Lymphoma
  • Non-Hodgkin's Lymphoma
  • Oral Cancer
  • Ovarian Cancer
  • Pancreatic Cancer
  • Pancytopenia
  • Pleural Cancer
  • Polycythemia Rubra Vera
  • Primary Central Nervous System Lymphoma
  • Primary Hypercoagulable State (incl. Factor V Leiden Disease)
  • Prostate Cancer
  • Pulmonary Disease
  • Purpura
  • Reticulosarcoma
  • Salivary Gland Cancer
  • Secondary Malignancies
  • Skin Cancer
  • Small Intestine Cancer
  • Soft Tissue Sarcoma
  • Squamous Cell Carcinoma
  • Stomach and Small Intestine Cancer
  • Stomach Cancer
  • Stomach Diseases
  • Testicular Cancer
  • Thalassemia
  • Thoracentesis
  • Throat Cancer (Hypopharyngeal)
  • Throat Cancer (Nasopharyngeal)
  • Throat Cancer (Oropharyngeal)
  • Thrombocytosis
  • Thrombosis
  • Tongue Cancer
  • Tonsil Cancer
  • Urinary Disorders
  • Uterine Cancer
  • Uterine Diseases
  • Vascular Disease
  • Venous Embolism and Thrombosis
  • Vulvar Cancer

About Me

Biography

Dr. John Wallmark, MD is a hematology specialist in Bethesda, MD and has been practicing for 27 years. He graduated from Hahnemann School Of Medicine, Allegheny University Of Health Sciences in 1992 and specializes in hematology and oncology.

Specialties

  • Hematology
  • Oncology

Board Certifications

  • Hematology
  • Medical Oncology

Education

University Of Nc Hosps
Residency Hospital
University Of Pa Health System
Residency Hospital
1992
Hahnemann School Of Medicine, Allegheny University Of Health Sciences
Medical School
1992

Awards

Dr. Wallmark's Reviews

Likelihood to recommend Dr. Wallmark

4.4

Based on 11 reviews

5 Stars
81.81818181818181%
(9)
4 Stars
0%
(0)
3 Stars
0%
(0)
2 Stars
9.090909090909092%
(1)
1 Star
9.090909090909092%
(1)

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Dr. Wallmark?
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Average Wait Time
  • 10 – 15 minutes
Dr. Wallmark's Performance
  • Trustworthiness
  • Explains condition(s) well
  • Answers questions
  • Time well spent
Office & Staff Performance
  • Scheduling
  • Office environment
  • Staff friendliness
What People Say About Dr. John Wallmark, MD
Reply
I am in treatment with Dr. Wallmark for breast cancer. I would recommend Dr. Wallmark very highly. He is smart, patient, never rushed, a good listener, and very reassuring. For my first appointment after diagnosis, he kept the office open late to see me. He stays abreast of all the latest research on treatments, knowing from memory the details of scientific studies I have asked him about. He is also honest while being encouraging without sugar-coating. Highly recommended!
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Make sure you get a second opinion before proceeding with treatment
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Affiliated Hospitals

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Suburban Hospital

Bethesda, MD

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