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Consulting a physician regularly is an important part of a healthier lifestyle. Together, you and your physician can determine the best plan to keep you fit and able to enjoy the times of your life. Surprisingly, many people do not have a regular doctor whom they can turn to in case of illness or injury. In a serious emergency, they often have no choice of whom will provide care or what treatment will be administered. We at Chester County Hospital encourage you to take the time to choose a physician before emergency situations arise. A regular primary care physician or specialist knows your medical history and can provide special insights into your treatment.
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Maureen R. Hewitt, MD

Maureen R. Hewitt, MD Physician

Clinical Associate of Medicine

Dr. Hewitt is employed by Penn Medicine.

About Dr. Maureen R. Hewitt

Recognized by America's Top Doctors for 2015 - 2017

Recognized in Philadelphia magazine's annual Top Docs issues for 2018 and 2019

Recognized in Main Line Today magazine's annual Top Docs issue 2008 - 2019

Clinical Specialties

Specialty:

  • Hematology
  • Medical Oncology

Programs & Centers:

Board Certification:

  • Hematology, 2009
  • Medical Oncology, 2008

Clinical Expertise:

  • Acute Lymphocytic Leukemia
  • Acute Myelogenous Leukemia
  • Acute Promyelocytic Leukemia
  • Adenocarcinoma of the Head and Neck
  • Adjuvant Chemotherapy
  • Adrenal Neoplasm
  • Adult T-Cell Leukemia
  • Adult T-Cell Lymphoma
  • AIDS Related Malignancies
  • Amyloidosis
  • Anal Cancer
  • Anaplastic Cancer of Thyroid
  • Anaplastic Large Cell Lymphoma
  • Anemia
  • Anemia and Bone Marrow Disorders
  • Anemia of Chronic Disease
  • Anemia of Pregnancy
  • Anticoagulation
  • Antiphospholipid Syndrome
  • Antithrombin Deficiency
  • Aplastic Anemia
  • Autoimmune Hemolytic Anemia
  • B12 Deficiency Anemia
  • Bile Duct Cancer (Cholangiocarcinoma)
  • Biological Targeted Therapy
  • Bladder Cancer
  • Bleeding Disorders
  • Blood Cancer
  • Blood Clot
  • Blood Clotting Disorders (Blood Coagulation)
  • Blood Disorders
  • Blood Platelet Disorders
  • Bone Marrow Biopsy
  • Bone Marrow Failure Syndromes
  • Bone Sarcoma
  • Bone Tumors
  • Brain Tumors
  • Breast Cancer
  • Burkitt Lymphoma
  • Cancer Chemotherapy
  • Cancer During Pregnancy
  • Cancer Pain
  • Cancer Survivor
  • Carcinoid Tumors
  • Carcinoma In Situ of Breast
  • Carcinoma of Unknown Primary
  • Castleman Disease
  • Catastrophic Antiphospholipid Syndrome
  • Cervical Cancer
  • Chronic Lymphocytic Leukemia
  • Chronic Myelocytic Leukemia
  • Chronic Myelomonocytic Leukemia
  • Clinical Trials
  • CNS Lymphoma
  • Coagulation Disorders
  • Cold Agglutinin Disease
  • Colon Tumors
  • Colorectal Cancer
  • Cooley's Anemia
  • Cryoglobulinemia
  • Cutaneous Lymphoma
  • Deep Thrombophlebitis
  • Deep Vein Thrombosis
  • Diamond Blackfan Anemia
  • Dyskeratosis Congenita
  • Endocrine Complications of Cancer Therapy
  • Endometrial Cancer
  • Eosinophilic Granuloma
  • Erdheim-Chester Disease
  • Esophageal Cancer
  • Essential Thrombocytosis
  • Ewings Sarcoma
  • Factor Eight Disorder
  • Factor Nine Deficiency
  • Factor V Leiden
  • Fallopian Tube Cancer
  • Familial Aplastic Anemia
  • Fanconi Anemia
  • Folic Acid Deficiency
  • Follicular Cancer of Thyroid
  • Gallbladder Cancer
  • Gastrointestinal Cancer
  • Gastrointestinal Stromal Tumors (GIST)
  • Gestational Trophoblastic Disease
  • Giant Cell Tumor of the Bone
  • Glioblastoma
  • Glioma
  • Glucose-6-Phosphate Dehydrogenase Deficiency
  • Graft Versus Host Disease
  • Hairy Cell Leukemia
  • Hand-Foot Syndrome
  • HELLP Syndrome
  • Hematologic Malignancies
  • Hemochromatosis
  • Hemoglobinopathies
  • Hemolytic Anemia
  • Hemolytic Uremic Syndrome
  • Hemophilia
  • Heparin-Induced Thrombocytopenia
  • Hereditary Cancer Risk
  • Hereditary Spherocytosis
  • Histiocytosis
  • Hodgkin Lymphoma
  • Hypercoagulable State
  • Hypogammaglobulinemia
  • Idiopathic Thrombocytopenic Purpura
  • Immunotherapy
  • Inflammatory Breast Cancer (IBC)
  • Intraocular Lymphoma
  • Iron Deficiency Anemia
  • Iron Metabolism Disorders
  • Kaposi Sarcoma
  • Kidney Cancer
  • Large Granular Lymphocytic Leukemia
  • Laryngeal Cancer
  • Leiomyosarcoma
  • Leukemia
  • Leukocytosis
  • Leukopenia
  • Light Chain Disorders
  • Liver Cancer
  • Lung Cancer
  • Lupus Anticoagulant
  • Lymphoma
  • Lymphopenia
  • Male Breast Cancer
  • Malignant Neoplasm of the Ureter
  • Marginal Zone Lymphoma
  • Maternal Anticoagulation
  • Maternal Hematologic Disorders
  • Maternal Thrombophilia
  • Mediastinal Lymphoma
  • Medullary Cancer of Thyroid
  • Melanoma
  • Merkel Cell Carcinoma
  • Mesothelioma
  • Monoclonal Gammopathy of Undetermined Significance
  • Mouth Cancer (Oral Cancer)
  • Mucosa-Associated Lymphoid Tissue Lymphoma
  • Mucosal Melanoma
  • Multiple Myeloma
  • Myelodysplastic Syndromes (MDS)
  • Myeloproliferative Neoplasms (MPN)
  • Neoadjuvant Chemotherapy
  • Neuroendocrine Tumors
  • Neutropenia
  • Non-Hodgkin Lymphoma
  • Non-Small Cell Lung Cancer
  • Oropharyngeal Cancer
  • Osteosarcoma
  • Ovarian Cancer
  • Pancreatic Cancer
  • Pancytopenia
  • Papillary Cancer of Thyroid
  • Paroxysmal Nocturnal Hemoglobinuria
  • Partial Thromboplastin Time Blood Test
  • Penile Cancer
  • Peripheral T-Cell Lymphoma
  • Pernicious Anemia
  • Petechiae
  • Pituitary Cancer
  • Plasma Cell Dyscrasia
  • POEMS Syndrome
  • Polycythemia
  • Porphyria
  • Postthrombotic Syndrome
  • Primary Myelofibrosis
  • Primary Systemic Amyloidosis
  • Prolymphocytic Leukemia
  • Prostate Cancer
  • Protein C Deficiency
  • Protein S Deficiency
  • Prothrombin Gene Mutation
  • Pure Red Cell Aplasia
  • Purpura
  • Rectal Cancer
  • Recurrent Thrombosis
  • Red Blood Cell Disorders
  • Refractory Anemia With Excess Blasts
  • Rhabdomyosarcoma
  • Sarcoma
  • Secondary Polycythemia
  • Sezary Syndrome
  • Sickle Cell Diseases
  • Sinus Cancer
  • Skin Cancer
  • Small Cell Lung Cancer
  • Soft Tissue Sarcoma
  • Spinal Tumor
  • Splenic Sequestration
  • Splenomegaly
  • Squamous Cell Carcinoma of the Head and Neck
  • Stomach Cancer (Gastric Cancer)
  • Sweat Gland Carcinoma
  • Testicular Cancer
  • Thalassemias
  • Thoracic Cancer
  • Throat Cancer
  • Thrombocytopenia
  • Thrombocytosis
  • Thrombophilia
  • Thrombotic Disorders
  • Thrombotic Thrombocytopenic Purpura
  • Thyroid Cancer
  • Transformed Lymphoma
  • Transitional Cell Carcinoma
  • Urethral Cancer
  • Uterine Cancer
  • Vaginal Cancer
  • Vaginal Melanoma
  • Venous-Occlusive Crisis
  • Von Willebrand Disease
  • Vulvar Cancer
  • Waldenstrom Macroglobulinemia (WM)
  • White Blood Cell Disorders
Show All Expertise

Practice Locations and Appointments

Insurance Accepted

  • Aetna US Healthcare
  • Amerihealth Caritas
  • Amerihealth Caritas Medicare
  • Cigna
  • Cigna HealthSpring
  • Clover Health Plan
  • CVS Health
  • Devon Health Services (Americare)
  • eLAP Services
  • Gateway Health Plan
  • Geisinger Health Plan
  • HealthAmerica / HealthAssurance, a Coventry Plan
  • HealthPartners
  • HealthPartners Medicare
  • HealthSmart
  • Highmark Blue Shield
  • Homestead Smart Health Plans
  • Humana / Choicecare
  • Independence Blue Cross (Keystone East)
  • Intergroup
  • Keystone First
  • Keystone First Medicare
  • Multiplan
  • NJ Qualcare
  • Oxford Health Plan
  • PA Health and Wellness (Centene) Medicare
  • PA Medicaid
  • PA Medicare
  • Preferred Health Care/LGH
  • Provider Partners Health Plan
  • Rail Road Medicare / Palmetto GBA
  • Remedy Partners at Penn Medicine
  • Tricare
  • United Healthcare
  • UnitedHealthcare Community Plan
  • US Family Health Plan
  • Veterans Choice Program

Education and Training

Medical School: Louisiana State University School of Medicine
Residency: Hospital of the University of Pennsylvania
Fellowship: Hospital of the University of Pennsylvania

Memberships

American Association of Cancer Research, National American Society of Clinical Oncology, National

Hospital Affiliation

Dr. Hewitt is employed by Penn Medicine.

Hospital Privileges:

  • Chester County Hospital: Has privileges to treat patients in the hospital.
  • Penn Presbyterian Medical Center: On the medical staff, but does not have privileges to treat patients in the hospital.

Research

Selected Publications:

Traynor AM, Hewitt M, Liu G, Flaherty KT, Clark J, Freedman SJ, Leighton AM, Watson PA, Zhao B, O'Dwyer PJ, Wilding G.: Phase I dose escalation study of MK-0457, a novel Aurora kinase inhibitor, in adult patients with advanced tumors. Cancer Chemother Pharmacol : 2010.

Hewitt MR, Sun W.: Oxaliplatin-Associated Hypersensitivity Reactions: Clinical Presentation and Management Clinical Colorectal Cancer 2 (6): 114-117,2006.

Hewitt M, Sun W, Haller DG, Mykulowycz K, Tuite C, Rosen M, Caparro M, Giantonio B, Oltoff K.: A phase II trial of the Combination of Capecitabine, Oxaliplatin with Bevacuzynab in the Treatment of Advanced Hepatocellular Carcinoma Preliminary Safety Analysis. Proceedings of the American Society of Clinical Oncology : 2006.

Hewitt MR, Haller DG.: Adjuvant Therapy for Colon Cancer, Yesterday, Today and Tomorrow The Article Reviewed Oncology (Williston Park) 20 : 473-475,2006.

Hewitt MR, Yu K.: Treatment Update for Metastatic Pancreatic Cancer Community Oncology 3 : 28-430,2006.

Hewitt M, Porter DL, Hummel K, McAlee A, Phillips J, Stadtmauer E, Schuster S, Luger S, Nasta S, Tsai D, Loren A, Perl A, Emerson S, Goldstein SC.: Myeloablative vs. Non-Myeloablative Conditioning with Allogeneic Stem Cell Transplantation for High Risk Non-Hodgkin's Lymphoma. Similar Outcomes Despite Differences in Disease Risk Proceedings of the American Society of Bone Marrow Transplantation : 2005.

DeCoster MA, Hewitt MR, Lambeau M, Lascunski M, Bazan NG: Modulation of Neuronal Sensitivity to Glutamate by Secretory Phospholipases A2 (SPLA2s) Proceedings of the Society for Neuroscience : 1997.

Academic Contact Info

Penn Hematology/Oncology
Suite 201
440 East Marshall Street

West Chester, PA 19380
Phone: (610) 738-2500
Patient appointments: 800-789-7366 (PENN)