- Brain cancer
- Brain metastases
- Brain tumor
- Primary brain tumor
- Spinal tumor
- Spine metastases
- Palliative therapy
- Radiation therapy for CNS
Casey L Hollawell, MD
Radiation Oncology
Accepting new patients
Sees patients age 18 and up
Penn Radiation Oncology Perelman - 2nd Floor
Penn Medicine Provider
About me
- Assistant Professor of Clinical Radiation Oncology
My education and training
- Medical School: Temple University School of Medicine
- Residency: Hospital of the University of Pennsylvania
Spoken languages
English
English
Insurance accepted
Please contact the practice and/or the member services department of your insurance company for specific details before receiving services. Providers may participate in some, but not all, products offered by a health plan; providers may also accept plans at some practice locations but not others.
- Aetna Advantra Cares D-SNP
- Aetna Advantra Credit Value
- Aetna Advantra Eagle HMO
- Aetna Advantra Eagle POS
- Aetna Advantra Premier Plus PPO
- Aetna Advantra Value
- Aetna Advantra Value Plus
- Aetna APCN Plus (Multi-Tier)
- Aetna Better Health Kids (CHIP) - DH Only
- Aetna Flexible Five
- Aetna Freedom Core
- Aetna Gold
- Aetna HMO
- Aetna Philly Prime
- Aetna POS
- Aetna PPO APCN
- Aetna Premier
- Aetna Premier Plus
- Aetna Savings Plus
- Aetna Signature Administrators
- Aetna Student Health Plan PPO
- Aetna Upfront Advantage
- First Health HMO
- First Health POS
- First Health PPO
- Meritain - Aramark (Other)
- Meritain - Aramark (Pennsylvania Premier Medical Plan)
- Centivo EPO
- Cigna Healthcare EPO
- Cigna Healthcare HMO
- Cigna Healthcare POS
- Cigna Healthcare PPO
- Claim Watcher (Homestead/ INDECs) Open Access
- Clover Health Choice
- Clover Health Choice Value PPO
- Clover Health Classic HMO
- Clover Health Value
- Devoted Health Choice Giveback Pennsylvania (PPO)
- Devoted Health Choice Pennsylvania (PPO)
- Devoted Health Choice Plus Pennsylvania (PPO)
- Devoted Health Core Pennsylvania (HMO)
- Devoted Health Dual Plus Pennsylvania (HMO D-SNP)
- Devoted Health Giveback Pennsylvania (HMO)
Locations
Penn Medicine hospital privileges
- Hospital of the University of Pennsylvania: Has privileges to treat patients in the hospital.
- Pennsylvania Hospital: Has privileges to treat patients in the hospital.
- Penn Presbyterian Medical Center: Has privileges to treat patients in the hospital.
- Chester County Hospital: Has privileges to treat patients in the hospital.
Dr. Hollawell is a Penn Medicine physician.
Qualifications and experience
- American College of Radiation Oncology (ACRO), National
- American Radium Society (ARS), National
- American Society for Radiation Oncology (ASTRO), National
- Pennsylvania Medical Society (PMS), Local
Treatments and conditions
Research
Publications
Sharma M, Friedes C, Hollawell C, Alexander D, Zou J, Xiao Y, Levin W, Bradley J, Yegya-Raman N, Feigenberg S, Teo BK Quality-of-life Metrics Correlate with Dual-energy and 4D-CT Derived Perfusion and Ventilation in Lung Cancer Patients 6 months Post Radiation Therapy , ASTRO Annual Meeting 2025, San Francisco, CA: 2025
Sharma M, Friedes C, Hollawell C, Alexander D, Zou J, Xiao Y, Levin W, Bradley J, Yegya-Raman N, Feigenberg S, Teo BK Dual-energy CT Derived Perfusion Blood Volume and 4D-CT Derived Ventilation Changes in Lung Cancer Patients 6-months Post Radiation Therapy , AAPM Annual Meeting 2025, Washington, DC: 2025
MacDuffie E, Zhang S, Hollawell C, Baron J, Feigenberg S, Metz J, Busch T, LaRiviere M, Khullar K Utilization Patterns of Proton Therapy Among Adult Gastrointestinal Cancer Patients: A Single Center Cohort Study , ARS Annual Meeting 2025, Seattle, WA: 2025
MacDuffie E, Zhang S, Hollawell C, Baron J, Feigenberg S, Metz J, Busch T, LaRiviere M, Khullar K Utilization Patterns of Proton Therapy Among Adult Gastrointestinal Cancer Patients: A Single Center Cohort Study , ARS Annual Meeting 2025, Seattle, WA: 2025
Berlin E, Ko K, Ma L, Messing I, Hollawell C, Smith AM, Taunk NK, Narayan V, Upshaw JN, Clark AS, Shah PD, Knollman H, Bhattacharya S, Koropeckyj-Cox D, Wang J, Yegya-Raman N, Han IS, Lefebvre B, Li T, Wilcox NS, Jung W, Chen J, Freedman GM, Ky B Cardiac Effects of Modern Breast Radiation Therapy in Patients Receiving Systemic Cancer Therapy , JACC CardioOncol, 7(3): 2025,219-230
Hollawell C, Natarajan J, Riina M, Kassick M, Freedman G, Taunk N, Berlin E Proton Therapy Utilization for Patients with Breast Cancer and Pectus Excavatum , ARS Annual Meeting 2025, Seattle, WA: 2025
Baron J, Belal Z, Zhang S, Hollawell C, Giron Santos A, MacDuffie E, Friedes C, Feigenberg S, Khullar K, Metz J, Busch T, LaRiviere M, Maxwell R Proton therapy utilization and disparities among adult head and neck cancer patients , Kakuna-O-Ka-La Conference 2025, Lahaina, HI: 2025
Howell K, Abdulijabbar L, Hollawell C, Morrison CM Chapter 30: Sarcomas , Radiation-Oncology Therapy: 2025
Berlin E, Wilcox N, Ko K, Ma L, Messing I, Hollawell C, Smith AM, Upshaw J, Koropeckyj-Cox D, Wang J, Knollman H, Clark A, Shah P, Bhattacharya S, Narayan V, Martei Y, Lefebvre B, Freedman G, Ky B Modern Breast Radiation and Comprehensive Echocardiography-Derived Measures of Cardiac Function , American Heart Association Annual Meeting 2024, Chicago, IL: 2024
Hollawell C, Zhang S, Giron A, Macduffie E, Friedes C, Eisenberg R, Feigenberg S, Konski A, Khullar K, Maxwell R, Metz J, Busch T, LaRiviere M Patterns and Disparities of Proton Therapy Utilization among Adult Cancer Patients , PTCOG-NA Annual Meeting 2024, New York, NY: 2024