
Overview
Gregory Willis, DO, specializes in gynecologic oncology and is certified by the American Osteopathic Board of Obstetrics and Gynecology. He practices at PinnacleHealth Women's Cancer Center and is affiliated with UPMC Lititz, UPMC Memorial, UPMC Hanover, UPMC Harrisburg, UPMC Community Osteopathic, and UPMC West Shore. He completed his fellowship at Community General Osteopathic Hospital, medical school at University of North Texas, residency at Erlanger Health System, and residency at Community Hospital of Lancaster.
Dr. Willis is rated as an Experienced provider by MediFind in the treatment of Adult Soft Tissue Sarcoma. His top areas of expertise are Ovarian Carcinosarcoma, Virilizing Ovarian Tumor, Desmoplastic Small Round Cell Tumor, Ovarian Cancer, and Hernia Surgery.
His clinical research consists of co-authoring 1 peer reviewed article. MediFind looks at clinical research from the past 15 years.
Insurance
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Accepted insurance plans:
- EPO
- HMO
- POS
- PPO
- EPO
- HMO
- POS
- PPO
- EPO
- HMO
- POS
- PPO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- OTHER MEDICARE PART D
- PPO
- HMO
- POS
- PPO
- EPO
- HMO
- PPO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE SNP
- OTHER MEDICARE PART D
- HMO
- POS
- PPO
- EPO
- HMO
- PPO
- HMO
- INDEMNITY
- POS
- PPO
- EPO
- POS
- PPO
- OTHER MANAGED MEDICAID
- OTHER MEDICAID
- STATE MEDICAID
- EPO
- HMO
- POS
- PPO
- EPO
- PPO
- EPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- MEDICARE-MEDICAID PLAN
- OTHER MEDICARE
- OTHER MEDICARE PART D
Locations
1703 Innovation Drive, Suite 2001, York, PA 17408
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.
Skip Viragh Outpatient Cancer Center
Dr. Meyer will serve as the lead medical oncologist for adult sarcoma patients, and will focus on building the Adult Sarcoma and Connective Tissue Oncology Program. In collaboration with pediatric oncologist David Loeb, M.D., Ph.D., and orthopaedic surgeon Kristy Weber, M.D., Meyer will bring novel therapies to the clinic for sarcoma patients. Meyer received his bachelors and masters degrees in cell and molecular biology from Stanford University. From there, he joined the Medical Scientist Training Program at Baylor College of Medicine and earned his medical degree followed by a doctorate in immunology. Meyer completed his residency at the University of Maryland and served as chief resident in medicine from 2004-2005. Afterward, he joined our fellowship program in medical oncology and has been working in the laboratory of Jonathan Powell, M.D., Ph.D., on projects relating to the characterization of molecular regulatory pathways involved in T-cell activation and energy. As a third-year fellow, Meyer served as the chief fellow for our Training Programs in Hematology and Medical Oncology and he received a Young Investigator Award from the American Society of Clinical Oncology in 2010. Dr. Meyer is rated as a Distinguished provider by MediFind in the treatment of Adult Soft Tissue Sarcoma. His top areas of expertise are Mesenchymoma, Undifferentiated Pleomorphic Sarcoma, Bone Tumor, and Ganglioneuroblastoma.
The Milton S Hershey Medical Center Physicians Group
Joseph Drabick is a Hematologist and an Oncologist in Hershey, Pennsylvania. Dr. Drabick is rated as a Distinguished provider by MediFind in the treatment of Adult Soft Tissue Sarcoma. His top areas of expertise are Melanoma, Adult Soft Tissue Sarcoma, Fibrosarcoma, Tissue Biopsy, and Bone Marrow Aspiration.
Johns Hopkins Children's Center
Dr. Christine Pratilas is a pediatric medical oncologist at the Sidney Kimmel Comprehensive Cancer Center and Associate Professor of Oncology, Pediatrics & Cellular and Molecular Medicine at the Johns Hopkins University School of Medicine. She joined the Hopkins pediatric sarcoma team in 2014. Dr. Pratilas received her undergraduate degree in Biology from Drew University in New Jersey and her medical degree from UMDNJ - Robert Wood Johnson Medical School (now Rutgers University), where she also completed her internship and residency from 1999 to 2002. From 2002 to 2005 she was a fellow in hematology and oncology in the Memorial Sloan Kettering Cancer Center (MSKCC) Department of Pediatrics, and in the Department of Pediatric Hematology and Oncology at New York Weill Cornell Medical Center. She was a postdoctoral research fellow in Dr. Neal Rosen’s Molecular Oncogenesis Laboratory at MSKCC. From 2006 to 2014 she was attending in Pediatric Oncology at MSKCC, specializing in developmental therapeutics & sarcoma. She has been the director of the pediatric sarcoma program at Hopkins since 2018. Dr. Pratilas focuses her research on cancer-associated pathways and signal transduction, which involves figuring out how a cell’s internal molecular pathways work, and how those pathways can be molecularly controlled. This knowledge is the basis for developing promising new molecularly targeted cancer therapies, which is the focus of Dr. Pratilas’s research. Among her important scientific contributions is advancing our understanding of how certain proteins that can be mutated in cancer, known as RAF kinases (specifically BRAF), affect a cancer cell’s behavior. The research in Dr. Pratilas' laboratory is focused on RAS signal transduction pathways, concentrating on pediatric sarcomas such as rhabdomyosarcoma and malignant peripheral nerve sheath tumors, in order to develop novel therapeutics for children with these tumors. Dr. Pratilas is rated as a Distinguished provider by MediFind in the treatment of Adult Soft Tissue Sarcoma. Her top areas of expertise are Malignant Peripheral Nerve Sheath Tumor, Neurofibromatosis Type 1 (NF1), Neurofibromatosis, Adult Soft Tissue Sarcoma, and Osteotomy.
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
- Distinguished
- Desmoplastic Small Round Cell TumorDr. Willis isDistinguished. Learn about Desmoplastic Small Round Cell Tumor.
- Malignant Mixed Mullerian TumorDr. Willis isDistinguished. Learn about Malignant Mixed Mullerian Tumor.
- Ovarian CancerDr. Willis isDistinguished. Learn about Ovarian Cancer.
- Ovarian CarcinosarcomaDr. Willis isDistinguished. Learn about Ovarian Carcinosarcoma.
- Sertoli-Leydig Cell TumorDr. Willis isDistinguished. Learn about Sertoli-Leydig Cell Tumor.
- Testicular Yolk Sac TumorDr. Willis isDistinguished. Learn about Testicular Yolk Sac Tumor.
- Advanced
- AgranulocytosisDr. Willis isAdvanced. Learn about Agranulocytosis.
- Cervical CancerDr. Willis isAdvanced. Learn about Cervical Cancer.
- Chronic Familial NeutropeniaDr. Willis isAdvanced. Learn about Chronic Familial Neutropenia.
- Endometrial CancerDr. Willis isAdvanced. Learn about Endometrial Cancer.
- Severe Congenital NeutropeniaDr. Willis isAdvanced. Learn about Severe Congenital Neutropenia.
- Vulvar CancerDr. Willis isAdvanced. Learn about Vulvar Cancer.
- Experienced
- Adult Soft Tissue SarcomaDr. Willis isExperienced. Learn about Adult Soft Tissue Sarcoma.
- AngiomyomaDr. Willis isExperienced. Learn about Angiomyoma.
- BRCA Positive Breast CancerDr. Willis isExperienced. Learn about BRCA Positive Breast Cancer.
- Eccrine PorocarcinomaDr. Willis isExperienced. Learn about Eccrine Porocarcinoma.
- HER2 Negative Breast CancerDr. Willis isExperienced. Learn about HER2 Negative Breast Cancer.
- Hernia SurgeryDr. Willis isExperienced. Learn about Hernia Surgery.


