Overview
John Maris is a Hematologist and an Oncologist in Philadelphia, Pennsylvania. Dr. Maris is highly rated in 10 conditions, according to our data. His top areas of expertise are Neuroblastoma, Embryonal Tumor with Multilayered Rosettes, Rhabdomyosarcoma, Hereditary Neuroblastoma, and Bone Marrow Transplant.
His clinical research consists of co-authoring 303 peer reviewed articles and participating in 2 clinical trials. MediFind looks at clinical research from the past 15 years.
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Locations
3401 Civic Center Blvd, Philadelphia, PA 19104
3500 Civic Center Blvd, Philadelphia, PA 19104
Additional Areas of Focus
Dr. Maris has provided the following conditions as areas of focus. Please note that we may not have enough data to validate their experience in some of these conditions.
Clinical Research
Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.
2 Clinical Trials
Office
Janet Kwiatkowski is a Hematologist and an Oncologist in Philadelphia, Pennsylvania. Dr. Kwiatkowski is highly rated in 14 conditions, according to our data. Her top areas of expertise are Hemolytic Anemia, Congenital Hemolytic Anemia, Anemia, Bone Marrow Transplant, and Splenectomy.
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Daniel Geynisman is a Hematologist and an Oncologist in Philadelphia, Pennsylvania. Dr. Geynisman is highly rated in 18 conditions, according to our data. His top areas of expertise are Renal Cell Carcinoma (RCC), Muscle Invasive Bladder Cancer, Bladder Cancer, Nephrectomy, and Orchiectomy.
Office
Stephan Grupp is a Hematologist and an Oncologist in Philadelphia, Pennsylvania. Dr. Grupp is highly rated in 13 conditions, according to our data. His top areas of expertise are Hepatic Venoocclusive Disease with Immunodeficiency, Acute Lymphoblastic Leukemia (ALL), Leukemia, Neuroblastoma, and Bone Marrow Transplant.
Frequently Asked Questions about Dr. John Maris
How do I make an appointment with Dr. John Maris?
You can book an appointment with Dr. John Maris by calling their office at 215-590-1000. MediFind provides direct contact information so you can schedule visits, second opinions, or consultations without navigating third-party calendars.
Is Dr. John Maris a top-rated expert for Neuroblastoma?
MediFind is an objective health platform that identifies experts based on real-world data. Dr. John Maris is classified as an Elite expert for Neuroblastoma, meaning they are among the top experts in the country for this condition. This ranking is based on their volume of patients, published research, and peer connections.
What conditions does Dr. John Maris specialize in?
While Dr. John Maris is a Hematology, they have specific expertise in Neuroblastoma, Embryonal Tumor with Multilayered Rosettes, and Rhabdomyosarcoma. MediFind analyzes a doctor's articles and referral patterns to identify their specific areas of focus within Hematology.
Does Dr. John Maris participate in research or clinical trials?
Yes. Dr. John Maris has published 303 articles and abstracts on conditions like Neuroblastoma. You can view a list of Dr. John Maris's latest peer-reviewed publications and clinical trial participation on their profile to see if they are active in new treatments.
Areas of Expertise
MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.
Learn more about MediFind’s expert tiers
- Elite
- Embryonal Tumor with Multilayered Rosettes
- NeuroblastomaDr. Maris isElite. Learn about Neuroblastoma.
- RhabdomyosarcomaDr. Maris isElite. Learn about Rhabdomyosarcoma.
- Distinguished
- Hereditary NeuroblastomaDr. Maris isDistinguished. Learn about Hereditary Neuroblastoma.
- Advanced
- Adult Soft Tissue SarcomaDr. Maris isAdvanced. Learn about Adult Soft Tissue Sarcoma.
- Ewing SarcomaDr. Maris isAdvanced. Learn about Ewing Sarcoma.
- MedulloblastomaDr. Maris isAdvanced. Learn about Medulloblastoma.
- NUT CarcinomaDr. Maris isAdvanced. Learn about NUT Carcinoma.
- OsteosarcomaDr. Maris isAdvanced. Learn about Osteosarcoma.
- Rhabdoid TumorDr. Maris isAdvanced. Learn about Rhabdoid Tumor.
- Experienced
- Acute Lymphoblastic Leukemia (ALL)Dr. Maris isExperienced. Learn about Acute Lymphoblastic Leukemia (ALL).
- Bone Marrow TransplantDr. Maris isExperienced. Learn about Bone Marrow Transplant.
- GliomaDr. Maris isExperienced. Learn about Glioma.
- HepatoblastomaDr. Maris isExperienced. Learn about Hepatoblastoma.
- Infantile NeutropeniaDr. Maris isExperienced. Learn about Infantile Neutropenia.
- LeukemiaDr. Maris isExperienced. Learn about Leukemia.