
Overview
Dr. O’Brien is a board-certified and fellowship-trained cancer physician. His clinical interests include lung cancer, lymphoma, general hematology, and gastrointestinal malignancies, especially colon cancer. Dr. O'Brien attended Georgetown University, where he received his medical degree, and completed his residency at Hahnemann University Hospital. He completed a fellowship in medical oncology at Milton S. Hershey Medical Center. Dr. O'Brien is certified by the American Board of Internal Medicine in internal medicine and medical oncology.
Dr. O'brien is rated as an Experienced provider by MediFind in the treatment of Virilizing Ovarian Tumor. His top areas of expertise are Colorectal Cancer, Familial Colorectal Cancer, Thrombocytopenia, and Chronic Lymphocytic Leukemia (CLL).
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
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- OTHER COMMERCIAL
- OTHER MEDICARE
- OTHER MEDICARE PART D
- PPO
- EPO
- HMO
- PPO
- EPO
- POS
- HMO
- INDEMNITY
- POS
- PPO
- EPO
- POS
- PPO
- OTHER MANAGED MEDICAID
- OTHER MEDICAID
- STATE MEDICAID
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- MEDICARE-MEDICAID PLAN
- OTHER MEDICARE PART D
- EPO
- PPO
- HMO
- MANAGED MEDICAID PLAN
- 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
75 Medical Park Drive, Lewisburg, PA 17837
Additional Areas of Focus
Dr. O'brien 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.
UPMC Gynecologic Oncology
John T. Comerci, MD, is a surgical oncologist, director of Gynecologic Oncology at UPMC Passavant Hospital, and associate professor at the University of Pittsburgh School of Medicine. His expertise is in robotic surgery and the diagnosis and management of diseases of the female reproductive organs, including ovarian, uterine, cervical, and vulvar cancers. His research interests include photodynamic therapy in the treatment of cervical and ovarian cancer. Dr. Comerci is rated as a Distinguished provider by MediFind in the treatment of Virilizing Ovarian Tumor. His top areas of expertise are Endometrial Cancer, Ovarian Cancer, Malignant Mixed Mullerian Tumor, Testicular Yolk Sac Tumor, and Vulvectomy.
Geisinger Medical Center - Hematology And Oncology
Dr. Ramdin is a board-certified and fellowship-trained cancer physician specializing in medical oncology and hematology. She attended the University of Medicine and Dentistry of New Jersey, Robert Wood Johnson Medical School, where she earned her medical degree. She completed her residency at Roger Williams Medical Center, and completed her fellowship in hematology/oncology at Rhode Island Hospital. Dr. Ramdin is certified by the American Board of Internal Medicine. Dr. Ramdin is rated as a Distinguished provider by MediFind in the treatment of Virilizing Ovarian Tumor. Her top areas of expertise are Lung Cancer, Pleuropulmonary Blastoma, Familial Pancreatic Cancer, and Adenoid Cystic Carcinoma.
UPMC Gynecologic Oncology
Joshua Kesterson, MD, is a fellowship-trained gynecologic oncologist and medical director of the gynecologic oncology program at UPMC in Central Pa. He received his medical degree from the University of Missouri and completed his residency in obstetrics, gynecology and women’s health at the University of Louisville, followed by his fellowship in gynecologic oncology at Roswell Park Cancer Institute. He is board-certified in obstetrics and gynecology and gynecologic oncology by the American Board of Obstetrics and Gynecology. Dr. Kesterson’s clinical interests include gynecologic oncology such as ovarian, cervical, and endometrial cancer, immunotherapy, and HPV, and his research interests include quality improvement, ovarian cancer, and endometrial carcinoma. He is a member of the Society for Gynecologic Oncologists, the Foundation for Women’s Cancer, and Alpha Omega Alpha Honor Society. Dr. Kesterson is rated as a Distinguished provider by MediFind in the treatment of Virilizing Ovarian Tumor. His top areas of expertise are Endometrial Cancer, Ovarian Cancer, Ovarian Carcinosarcoma, and Sertoli-Leydig Cell Tumor.
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
- Colorectal CancerDr. O'brien isDistinguished. Learn about Colorectal Cancer.
- Familial Colorectal CancerDr. O'brien isDistinguished. Learn about Familial Colorectal Cancer.
- Advanced
- Chronic B-Cell Leukemia (CBCL)Dr. O'brien isAdvanced. Learn about Chronic B-Cell Leukemia (CBCL).
- Chronic Lymphocytic Leukemia (CLL)Dr. O'brien isAdvanced. Learn about Chronic Lymphocytic Leukemia (CLL).
- Chronic Myelogenous Leukemia (CML)Dr. O'brien isAdvanced. Learn about Chronic Myelogenous Leukemia (CML).
- Diffuse Large B-Cell Lymphoma (DLBCL)
- Endometrial CancerDr. O'brien isAdvanced. Learn about Endometrial Cancer.
- Familial Prostate CancerDr. O'brien isAdvanced. Learn about Familial Prostate Cancer.
- Experienced
- Acute Lymphoblastic Leukemia (ALL)Dr. O'brien isExperienced. Learn about Acute Lymphoblastic Leukemia (ALL).
- Adult Soft Tissue SarcomaDr. O'brien isExperienced. Learn about Adult Soft Tissue Sarcoma.
- AgranulocytosisDr. O'brien isExperienced. Learn about Agranulocytosis.
- ALK-Positive Non-Small Cell Lung CancerDr. O'brien isExperienced. Learn about ALK-Positive Non-Small Cell Lung Cancer.
- Alveolar Soft Part SarcomaDr. O'brien isExperienced. Learn about Alveolar Soft Part Sarcoma.
- Anal CancerDr. O'brien isExperienced. Learn about Anal Cancer.


