About me
Dr. Lischalk is a board-certified radiation oncologist with extensive experience in stereotactic radiosurgery, stereotactic body radiation therapy, intensity modulated radiation therapy, and proton beam therapy. In addition to his positions as clinical director of the radiosurgery service and specialty service director of the Genitourinary Cancer Program at MedStar Georgetown, he serves as assistant director of the clinical trials office at Georgetown Lombardi Comprehensive Cancer Center, vice-chief of clinical research for MedStar Radiation Oncology, and is a clinical associate professor at the Georgetown University School of Medicine.
Before joining MedStar Georgetown, Dr. Lischalk held several leadership positions at New York University Perlmutter Cancer Center, where he served as medical director of the NYU CyberKnife Center, director of research for the NYU-LI Department of Radiation Oncology, and clinical associate professor in the NYU-LI Grossman School of Medicine. He also previously served as director of thoracic radiation oncology at MedStar Georgetown University Hospital.
Dr. Lischalk earned his medical doctorate from the University of Washington School of Medicine. He completed his internship in internal medicine at Stamford/Columbia University College of Physicians and Surgeons, followed by his residency and chief residency in the Department of Radiation Medicine at Georgetown University Hospital.
Dr. Lischalk’s clinical research focuses on genitourinary, thoracic, and central nervous system cancers, with particular expertise in innovative approaches to prostate cancer treatment, including MRI-directed SBRT microboost techniques and the integration of advanced technologies for precision treatment delivery. He has been at the forefront of developing clinical trials and has led several successful investigator initiated trials for novel treatments of prostate and lung cancers.
Dr. Lischalk has published over 75 peer-reviewed articles and regularly presents his research at national and international conferences. Since 2015, he has maintained a research collaboration with Heidelberg University Hospital/Ion Therapy Center in Germany, one of the world's premier centers for advanced radiation techniques including carbon ion therapy.
Beyond his clinical and research work, Dr. Lischalk is committed to medical education, having mentored numerous medical students, residents, and fellows throughout his career. He is actively involved in clinical trials and innovative treatment approaches for cancer patients, with a commitment to advancing radiation oncology techniques that improve outcomes while minimizing side effects. He is a member of the American Society for Radiation Oncology, the American Society of Clinical Oncology, and the American Board of Radiology.
Philosophy of care
Because every patient is unique, Dr. Lischalk develops a treatment plan focused on the patient’s diagnosis and what is important to them and tailors the treatment approach to best meet their needs. He takes a multidisciplinary, collaborative approach to caring for patients, partnering with doctors from different specialties, including radiology, pathology, surgery, and medical oncology, to provide patients with unparalleled cancer care and achieve the best outcomes.
When he’s not working, Dr. Lischalk enjoys spending time with family and traveling internationally.
Procedures I perform
- Brachytherapy
- Breast Cancer Radiation Treatment
- Cancer Radiation Treatment
- Cancer Survivorship Care
- Cyberknife
- Gastrointestinal Cancer Radiation Treatment
- Genitourinary Cancer Treatment
- Keloid Radiation Treatment
- Lung Cancer Radiationtreatment
- Osteoarthritis Radiation Treatment
- Prostate Brachytherapy
- Prostate Cancer Treatment
- Radiation Oncology Consultation
- Transrectal Ultrasound
- Ultrasound-Guided Biopsy
Insurance
MedStar Health accepts most major health insurance plans. If you are uncertain as to whether your individual health insurance plan is accepted at MedStar Health, please call your insurance company.
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List of insurance plans we accept
- CareFirst Blue Choice Opt Out Open Access
- CareFirst Group Medicare Advantage
- Aetna Elect Choice/ EPO (Aetna Health Fund)
- CareFirst NASCO
- UnitedHealthcare and AARP Medicare Complete Plans
- Fee-for-Service (FFS) District of Columbia, Maryland and Virginia Medicaid
- Aetna Medicare Advantage PFFS Plan
- Choice POS II Open Access
- Kaiser Permanente Medicare Advantage Signature and Select
- United Healthcare Navigate Cardiac Global
- MedStar Family Choice - Maryland Health Choice
- IH-HMO
- IH-Open Network Only Plus
- IH-Open POS Plus
- CareFirst (NCA) Indemnity
- Select HMO/HealthFund/Health Network
- IH-Open HMO
- Advantra Platinum (PPO)
- United Healthcare Options (PPO)
- IH-EPO Plus
- Aetna HMO-Open Access/Select OA/HealthFund/Health Network Option OA
- CareFirst Dual Prime HMO-SNP
- United Healthcare Choice Plus Cardiac Global
- Kaiser Permanente Select
- Aetna Worker's Compensation Network
- Coventry of Delaware HMO/PPO
- Priority Partners - Maryland Health Choice
- BCBS Out-of-State Medicare Plans (Blue Advantage)
- CareFirst EPO
- United Healthcare Select Plus (POS)
- CareFirst Maryland Point of Service Plan
- United Healthcare Community Plan - VA Medicaid MCO
- Uniformed Services Family Health Plan
- Humana Medicare Advantage - HMO Open Access
- Sentara Health
- United Healthcare Choice
- Amerigroup DC Healthy Families
- CIGNA EPO
- Medicare Advantage - Advantra Value (PPO)
- Private Health Care Systems (PPO)
- Choice Care Network/HUMANA (PPO)
- TRICARE East Prime
- Police and Fire Clinic
- Aetna Premier 200PD
- CareFirst Federal Employee Program (Std. & Basic PPO)
- Optimum Choice
- Aetna Signature Administrator PPO/TPA
- Johns Hopkins Advantage MD PLUS PPO
- Aetna HMO
- Maryland Physicians Care MCO
- WellPoint Maryland - Maryland Health Choice
- Anthem Federal Employee Program Basic
- Johns Hopkins Advantage MD HMO
- M.D. IPA Preferred (POS)
- DC/MD SHOP QHP Small Business Plans
- CareFirst Blue Card Program
- HumanaChoice PPO
- TriWest Healthcare Alliance
- Alterwood Advanatge HMO & DSNP Plans
- HighMark
- Cigna True Choice Plus Medicare (PPO)
- Employee Health Plan
- MultiPlan, Inc
- Blue Choice Advantage
- Kaiser Permanente Signature - Added Choice
- UnitedHealthcare Medicare Advantage DSNP District of Columbia
- United HealthCare Community Plan - Maryland Health Choice Program
- Optimum Choice & Optimum Choice Preferred (POS) Cardiac Global
- UnitedHealthcare Medicare Adv. Special Needs Plans
- Medicare FFS
- Kaiser Permanente Medicare Plus
- CareFirst Blue Choice Opt Out Plus Open Access (POS)
- Private Fee-for-Service Plans (PFFS)
- Great-West Healthcare POS/CIGNA
- Aetna Elect Choice/ Open Access (POS)
- United Medicare Private Fee-for-Service (PFFS) plans
- Anthem BCBS of VA HealthKeepers (POS & POS OA)
- MedStar Family Choice DC Healthcare Alliance
- Mamsi Life & Health (Indem./PPO) Cardiac Global
- MD IPA (HMO) & MD IPA Preferred Cardiac Global
- Network OA
- Geisinger Medicare Advantage
- CIGNA HMO Open Access
- Health Services for Children with Special Needs
- Core Essential (HMO)
- CIGNA Indemnity
- IH-Network Only Plus
- UnitedHealthcare Individual Exchange Plans
- Aetna Medicare Advantage HMO & PPO Plans
- Anthem BCBS of VA HealthKeepers Plus
- Anthem BCBS Medi Blue Dual Adv
- Anthem BCBS Medi Blue SNP
- UHC Group Medicare Advantage Plans (HMO, POS, PPO)
- Aetna Classic 5000
- United Healthcare Select HMO - EPO/NPP
- CareFirst Administrators
- CIGNA SureFit (HMO)
- Coventry Health Care of Virginia
- Choice Fund PPO
- M.D. IPA (HMO)
- Aetna Classic 5000PD
- AmeriHealth Caritas DC Healthcare Alliance
- CareFirst Group Medicare Advantage prescription drug benefit (PPO)
- IH-POS
- HUMANA/Choice Care Medicare Plans (Choice, Gold Choice)
- Amerigroup DC Alliance
- Anthem BCBS Medi Blue Plus
- Beech Street PPO
- Anthem BCBS of VA Key Care POS/PPO/Indemnity
- CareFirst Community Health Plan of MD
- Aetna Advantage 6350PD
- IH-Open POS II
- CareFirst Maryland Indemnity or PPO
- Cigna Preferred Medicare (HMO)
- Coventry Health Care National Network PPO
- First Health PPO
- CareFirst FEP Blue Focus
- Humana Medicare Advantage - PPO
- Kaiser Permanente Flexible Choice 3-tier POS
- CareFirst MedStar PPO
- Lasso Healthcare - Medicare Medical Savings Account
- Aetna Open Choice (PPO)
- Optimum Choice Preferred (POS)
- Kaiser Permanente Flexible Choice POS Cardiac Global
- Medicare Direct
- Navigate
- Aetna VA Exchange
- CIGNA PPO Plus
- Magellan Complete Care of VA - VA Medicaid MCO
- Aetna Quality Point of Service (POS)
- CIGNA Connect EPO
- Choice POS II
- CareFirst Blue Preferred PPO
- CareFirst MedStar Select PPO
- Kaiser Permanente Signature
- Kaiser Permaenete Signature - Added Choice Cardiac Global
- BlueChoice Open Access
- Cigna Achieve Medicare (HMO C-SNP)
- Healthy Blue (HMO, POS)
- OCI Direct (HMO)
- Erickson Advantage Plans
- Cigna TotalCare (HMO D-SNP)
- Mamsi Life & Health (Indem./PPO)
- Aetna Student Health Insurance
- Kaiser Permanente Select - Added Choice
- Options PPO Cardiac Global
- TRICARE for Life East
- Humana Gold Plus HMO
- United Healthcare Choice Plus
- Aetna Classic 3500
- Kaiser Maryland Medicaid MCO
- Anthem BCBS of VA HealthKeepers (HMO)
- MedStar Family Choice DC Healthy Families
- Aetna Managed Choice Open Access (POS)
- Aetna Managed Choice (POS)
- HumanaChoice Honor's plan PPO
- UHC Passport
- HealthyBlue PPO
- IH-POS Plus
- Cigna True Choice Medicare (PPO)
- Aetna Traditional Choice (PPO)
- BCBS of Michigan (BCN Advantage,Security Blue, Freedom, Medicare PLUS Blue Group PPO)
- IH-Open HMO Option
- Tricare Reserve Select
- Aetna Advantage 6350
- IH-Indemnity
- CIGNA PPO
- Kaiser Permanente HMO Plus and DHMO Plus Member
- Aetna Better Health of MD
- United Healthcare Select HMO-EPO/NPP Cardiac Global
- First Health PPO
- Jai Medical Systems - Maryland Health Choice
- Aetna Advantage 5750
- IH-PPO
- POS OA
- Veterans Affairs Community Care Network
- IH-Open EPO Plus
- CIGNA POS/Network POS
- Anthem Federal Employee Program Standard
- CareFirst BlueChoice HMO
- United Healthcare Choice Cardiac Global
- CIGNA HMO & Network (HMO)
- Kaiser Permanente Select Cardiac Global
- Choice POS
- Aetna Basic
- Johns Hopkins Advantage MD PPO
- TRICARE East Select
- United Student Resources
- NYC Medicare Advantage Plus
- OA Plus
- Optima Family Care MCO - VA Medicaid MCO
- CareFirst BlueCross BlueShield Advantage Core/Enhanced
- Aetna Better Health of VA
- AMERIVANTAGE/Amerigroup Community Care
- AmeriHealth Caritas DC Healthy Families
- Cigna Alliance Medicare (HMO)
Videos
Education
Board Certification: American Board of Radiology, Radiation Oncology
Residency: MedStar Georgetown University Hospital (2017)
Internship: Stamford Hospital (2013)
Medical School: University of Washington (2012)