
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 Vaginal Cancer. 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
Accepted insurance can change. Please verify directly with the provider.
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.
Lutherville Hematology And Oncology Services
Sandy Kotiah is an Oncologist and a Hematologist in Baltimore, Maryland. Dr. Kotiah is rated as a Distinguished provider by MediFind in the treatment of Vaginal Cancer. Her top areas of expertise are Neuroendocrine Tumor, Paget Disease of the Breast, Anemia, Colorectal Cancer, and Bone Marrow Aspiration. Dr. Kotiah is currently accepting new patients.
St Paul Place Specialists, Inc.
Dwight Im is a Gynecologic Oncologist and an Oncologist in Baltimore, Maryland. Dr. Im is rated as a Distinguished provider by MediFind in the treatment of Vaginal Cancer. His top areas of expertise are Rectocele, Endometrial Cancer, Endometrial Stromal Sarcoma, Hysterectomy, and Oophorectomy. Dr. Im is currently accepting new patients.
Johns Hopkins Health Care & Surgery Center - Green Spring Station, Lutherville
Dr. Amanda Nickles Fader is a professor in the Johns Hopkins Hospital Department of Gynecology and Obstetrics and the Sidney Kimmel Cancer Center. She is the former fellowship director and division director of the Johns Hopkins Kelly Gynecologic Oncology Service and currently is Vice Chair of Gynecologic Surgical Operations and the Director of the Center for Rare Gynecologic Cancers. Additionally, she serves as the 2024-2025 President of the Society of Gynecologic Oncology. Dr. Fader received her undergraduate degree with highest distinction in music (violin performance) and pre-medicine from the University of Virginia. She earned her medical degree from the Medical College of Virginia, and completed her residency in obstetrics and gynecology at the Magee-Women’s Hospital of UPMC in Pittsburgh. Dr. Fader then underwent gynecologic oncology fellowship training at the Cleveland Clinic. She has co-authored more than 230 publications in peer-reviewed medical journals and is recognized as an expert in rare gynecologic tumors, clinical trials and quality and safety in surgery. She has a special interest in uterine serous carcinoma and low-grade serous carcinoma of the ovary and currently serves as the PI or co-PI of three international NRG Oncology clinical trials. Dr. Fader serves as a national board examiner in gynecologic oncology for the American Board of Obstetrics and Gynecology and Associate Editor of the Gynecologic Oncology journal is a member of the Rare Tumor and Uterine Corpus Committees of the NRG/Gynecologic Oncology Group. She is also co-founder of the Society of Gynecologic Oncology BRIDGES Program, a two-year longitudinal clinical trials and career development program for early-career oncologists. She has been the recipient of several research grants and awards for her research, including the Society of Gynecologic Oncology Innovations Award, the Best AAGL Paper in Minimally Invasive Gynecologic Oncology Surgery, a Department of Defense Ovarian Cancer Clinical Trials Academy Leadership Award, and National Cancer Institute Cervical SPORE grant. Dr. Fader is consistently recognized for clinical excellence on lists such as Baltimore magazine’s Top Docs and Castle Connolly’s Top Doctors, and is a recipient of the Top 10 Docs, Compassionate Doctors and Patient Choice Awards from Vitals.com. She has particular expertise with the surgical and medical management of uterine (endometrial), ovarian, cervical and vulvar cancers, as well as the treatment of women who are at high risk for developing a gynecologic malignancy. She has a special interest in caring for patients throughout the entire spectrum of their lives: from preventive oncology — minimizing key risk factors that can lead to gynecologic cancers — to survivorship initiatives addressing all aspects of recovery, including emotional well-being, sexual health and clinical follow-up. Dr. Fader is rated as a Distinguished provider by MediFind in the treatment of Vaginal Cancer. Her top areas of expertise are Ovarian Carcinosarcoma, Sertoli-Leydig Cell Tumor, Ovarian Cancer, Bladder Reconstruction, and Hernia Surgery.
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.

