Ralph Mangusan, DNP MPH MSN NP
Provider is directly employed by MedStar Health
Provider is directly employed by MedStar HealthSpecialties: Hematology and Oncology
Languages: English, Tagalog
About me
Ralph Mangusan, DNP, MPH, CRNP, is a nurse practitioner at MedStar Georgetown University Hospital (3800 Reservoir Rd NW, Washington, DC) who specializes in treating leukemia, lymphoma, multiple myeloma, and other blood cancers. He supports people before, during, and after allogeneic and autologous bone marrow transplants and CAR T-cell therapy, working closely with the physician-led team at every step. With a thoughtful, patient-centered approach, he helps each person understand what is happening, what comes next, and how the plan fits their goals from the start.
Philosophy of Care
His philosophy begins with a simple promise: you will be treated as a person, not a diagnosis. Facing blood cancer can change life in an instant, and it often brings fear, fatigue, and uncertainty. Ralph strives to offer a steady presence, compassionate support, and guidance that reflects both the medical facts and what matters most to you.
His goal is to help you make decisions at a pace you can manage and to revisit them as your needs change. He explains options in plain language, checks in often to be sure your questions have been answered, and makes room for the emotions that can come with treatment.
He also pays attention to what life looks like between visits. Treatment can affect sleep, appetite, energy, and routines. He makes space to talk about how you are coping and works with you to find practical ways forward. He also encourages you to discuss symptoms and concerns early so he can respond promptly.
Care works best when it is a true partnership among you, the people you trust, and the full clinical team. Ralph collaborates closely with nurses, dietitians, social workers, and other specialists so resources are in place when needs arise. His hope is that you leave each visit feeling respected, supported, and more confident about the road ahead.
Training & Experience
He earned a Doctor of Nursing Practice and a post-graduate certificate in Adult and Geriatric Primary Care from Duke University. He holds a Master of Public Health from the University of North Carolina at Chapel Hill and a Master of Science in Nursing from the University of North Carolina at Charlotte. Building on this foundation, he completed specialty training in adult oncology, clinical research, and advanced high-resolution anoscopy, a procedure that uses a specialized scope to examine the anal canal and surrounding tissue for abnormal changes. Before joining MedStar Georgetown, he spent several years at the National Cancer Institute caring for people enrolled in phase I/II clinical trials as well as natural history studies, which follow patients over time to see how a condition changes and how treatment affects daily life.
He is a member of the Oncology Nursing Society, the American Nurses Association, and the American Association of Nurse Practitioners. By staying actively engaged with these organizations, he brings patients the reassurance that their treatment plan reflects current standards and safety practices.
Research & Clinical Impact
Alongside his clinical work, Ralph contributes to research aimed at improving outcomes for people undergoing a bone marrow transplant. His interests include reducing treatment-related toxicities (side effects that can be serious or difficult to tolerate) and addressing psychosocial needs, including stress, anxiety or depression, financial concerns, transportation challenges, and caregiver support. He has supported clinical trials, contributed to research activities like data collection and review, and shared findings through peer-reviewed publications and professional conference presentations.
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
- OA Plus
- Optimum Choice
- DC/MD SHOP QHP Small Business Plans
- Jai Medical Systems - Maryland Health Choice
- Anthem BCBS Medi Blue SNP
- CareFirst NASCO
- Sentara Health
- United Healthcare Choice Cardiac Global
- Veterans Affairs Community Care Network
- IH-Network Only Plus
- IH-PPO
- CareFirst EPO
- CIGNA HMO & Network (HMO)
- Aetna Worker's Compensation Network
- United Healthcare Navigate Cardiac Global
- CareFirst Blue Choice Opt Out Open Access
- Maryland Physicians Care MCO
- IH-HMO
- Private Health Care Systems (PPO)
- United Healthcare Select HMO-EPO/NPP Cardiac Global
- IH-POS Plus
- Anthem BCBS of VA HealthKeepers (HMO)
- CareFirst Administrators
- Aetna Managed Choice Open Access (POS)
- CIGNA HMO Open Access
- Amerigroup DC Healthy Families
- Police and Fire Clinic
- Aetna Open Choice (PPO)
- CIGNA Indemnity
- Cigna True Choice Plus Medicare (PPO)
- Employee Health Plan
- Kaiser Permaenete Signature - Added Choice Cardiac Global
- Kaiser Permanente Select Cardiac Global
- United Healthcare Community Plan - VA Medicaid MCO
- Humana Medicare Advantage - HMO Open Access
- IH-EPO Plus
- Amerigroup DC Alliance
- Kaiser Permanente Select
- IH-Open POS II
- IH-Open Network Only Plus
- Cigna True Choice Medicare (PPO)
- Navigate
- United HealthCare Community Plan - Maryland Health Choice Program
- Aetna VA Exchange
- CareFirst Federal Employee Program (Std. & Basic PPO)
- IH-Open HMO
- TRICARE East Prime
- CareFirst Group Medicare Advantage
- NYC Medicare Advantage Plus
- CareFirst Dual Prime HMO-SNP
- MedStar Family Choice DC Healthcare Alliance
- Aetna Student Health Insurance
- CIGNA PPO
- United Student Resources
- TriWest Healthcare Alliance
- Private Fee-for-Service Plans (PFFS)
- Cigna Alliance Medicare (HMO)
- United Medicare Private Fee-for-Service (PFFS) plans
- Anthem Federal Employee Program Basic
- Aetna Medicare Advantage HMO & PPO Plans
- Anthem Federal Employee Program Standard
- CIGNA EPO
- Select HMO/HealthFund/Health Network
- CareFirst FEP Blue Focus
- Aetna Quality Point of Service (POS)
- Kaiser Permanente HMO Plus and DHMO Plus Member
- CareFirst BlueChoice HMO
- M.D. IPA (HMO)
- Aetna Advantage 5750
- UnitedHealthcare Individual Exchange Plans
- Mamsi Life & Health (Indem./PPO) Cardiac Global
- IH-Open HMO Option
- CIGNA SureFit (HMO)
- Anthem BCBS of VA HealthKeepers (POS & POS OA)
- Alterwood Advanatge HMO & DSNP Plans
- Erickson Advantage Plans
- AmeriHealth Caritas DC Healthcare Alliance
- United Healthcare Options (PPO)
- HealthyBlue PPO
- Humana Gold Plus HMO
- Mamsi Life & Health (Indem./PPO)
- CareFirst Blue Card Program
- Anthem BCBS of VA Key Care POS/PPO/Indemnity
- MedStar Family Choice - Maryland Health Choice
- UnitedHealthcare Medicare Advantage DSNP District of Columbia
- United Healthcare Choice Plus Cardiac Global
- Choice POS II Open Access
- POS OA
- First Health PPO
- BCBS Out-of-State Medicare Plans (Blue Advantage)
- AMERIVANTAGE/Amerigroup Community Care
- Aetna Better Health of MD
- CIGNA Connect EPO
- Kaiser Permanente Flexible Choice 3-tier POS
- Choice Fund PPO
- First Health PPO
- Aetna Signature Administrator PPO/TPA
- CareFirst MedStar Select PPO
- Humana Medicare Advantage - PPO
- Aetna Elect Choice/ EPO (Aetna Health Fund)
- Optimum Choice Preferred (POS)
- Great-West Healthcare POS/CIGNA
- Anthem BCBS of VA HealthKeepers Plus
- IH-Open POS Plus
- Aetna Better Health of VA
- Johns Hopkins Advantage MD PPO
- Aetna HMO
- HumanaChoice Honor's plan PPO
- Kaiser Permanente Flexible Choice POS Cardiac Global
- CareFirst Blue Choice Opt Out Plus Open Access (POS)
- Healthy Blue (HMO, POS)
- Coventry of Delaware HMO/PPO
- Medicare Direct
- Medicare FFS
- Choice POS
- Coventry Health Care National Network PPO
- HumanaChoice PPO
- Aetna Managed Choice (POS)
- TRICARE East Select
- M.D. IPA Preferred (POS)
- Optima Family Care MCO - VA Medicaid MCO
- Aetna Classic 3500
- Blue Choice Advantage
- Coventry Health Care of Virginia
- Kaiser Permanente Select - Added Choice
- Aetna Advantage 6350PD
- BlueChoice Open Access
- CIGNA PPO Plus
- Aetna Premier 200PD
- UHC Group Medicare Advantage Plans (HMO, POS, PPO)
- TRICARE for Life East
- Kaiser Permanente Signature
- OCI Direct (HMO)
- AmeriHealth Caritas DC Healthy Families
- Kaiser Permanente Signature - Added Choice
- Aetna Elect Choice/ Open Access (POS)
- Choice Care Network/HUMANA (PPO)
- WellPoint Maryland - Maryland Health Choice
- IH-Indemnity
- Aetna Classic 5000PD
- CareFirst MedStar PPO
- CareFirst (NCA) Indemnity
- Kaiser Permanente Medicare Advantage Signature and Select
- BCBS of Michigan (BCN Advantage,Security Blue, Freedom, Medicare PLUS Blue Group PPO)
- Magellan Complete Care of VA - VA Medicaid MCO
- HighMark
- Advantra Platinum (PPO)
- UnitedHealthcare and AARP Medicare Complete Plans
- Aetna Traditional Choice (PPO)
- CareFirst BlueCross BlueShield Advantage Core/Enhanced
- Cigna TotalCare (HMO D-SNP)
- Core Essential (HMO)
- Kaiser Permanente Medicare Plus
- Anthem BCBS Medi Blue Plus
- Cigna Achieve Medicare (HMO C-SNP)
- Johns Hopkins Advantage MD HMO
- Johns Hopkins Advantage MD PLUS PPO
- Choice POS II
- Health Services for Children with Special Needs
- Medicare Advantage - Advantra Value (PPO)
- CareFirst Community Health Plan of MD
- Cigna Preferred Medicare (HMO)
- MD IPA (HMO) & MD IPA Preferred Cardiac Global
- Aetna Classic 5000
- Aetna Advantage 6350
- CareFirst Maryland Point of Service Plan
- Aetna Medicare Advantage PFFS Plan
- Aetna Basic
- IH-Open EPO Plus
- MedStar Family Choice DC Healthy Families
- Fee-for-Service (FFS) District of Columbia, Maryland and Virginia Medicaid
- Optimum Choice & Optimum Choice Preferred (POS) Cardiac Global
- CareFirst Blue Preferred PPO
- CareFirst Group Medicare Advantage prescription drug benefit (PPO)
- CIGNA POS/Network POS
- Uniformed Services Family Health Plan
- United Healthcare Select HMO - EPO/NPP
- UnitedHealthcare Medicare Adv. Special Needs Plans
- Beech Street PPO
- Network OA
- Aetna HMO-Open Access/Select OA/HealthFund/Health Network Option OA
- Anthem BCBS Medi Blue Dual Adv
- Lasso Healthcare - Medicare Medical Savings Account
- MultiPlan, Inc
- United Healthcare Select Plus (POS)
- IH-POS
- Geisinger Medicare Advantage
- CareFirst Maryland Indemnity or PPO
- Tricare Reserve Select
- Kaiser Maryland Medicaid MCO
- UHC Passport
- United Healthcare Choice
- United Healthcare Choice Plus
- Priority Partners - Maryland Health Choice
- Options PPO Cardiac Global
- HUMANA/Choice Care Medicare Plans (Choice, Gold Choice)
Education
Board Certification: American Nurses Credentialing Center, American Academy of Nurse Practitioners
Board Certification: American Association of Nurse Practitioners, American Academy of Nurse Practitioners
Board Certification: Wound Ostomy & Continence Nursing Certification Board, Wound Care
Graduate: University of North Carolina at Chapel Hill (2020)
Graduate: University of North Carolina at Charlotte (2012)