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.
Practice locations
Distance from Change Location Enter your Location
3800 Reservoir Rd NW
2nd Fl
Washington, DC, 20007
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
- IH-Network Only Plus
- Choice Fund PPO
- Cigna TotalCare (HMO D-SNP)
- Aetna Student Health Insurance
- CIGNA POS/Network POS
- IH-POS
- Advantra Platinum (PPO)
- United Healthcare Choice Plus Cardiac Global
- Options PPO Cardiac Global
- Select HMO/HealthFund/Health Network
- IH-Open Network Only Plus
- Kaiser Maryland Medicaid MCO
- Aetna Open Choice (PPO)
- CIGNA Indemnity
- MultiPlan, Inc
- CareFirst Maryland Point of Service Plan
- Fee-for-Service (FFS) District of Columbia, Maryland and Virginia Medicaid
- Amerigroup DC Healthy Families
- Core Essential (HMO)
- Coventry Health Care of Virginia
- NYC Medicare Advantage Plus
- IH-PPO
- Aetna Signature Administrator PPO/TPA
- Choice POS
- Humana Medicare Advantage - HMO Open Access
- Aetna Traditional Choice (PPO)
- CIGNA EPO
- United Healthcare Select HMO - EPO/NPP
- United Healthcare Choice Plus
- Kaiser Permaenete Signature - Added Choice Cardiac Global
- AmeriHealth Caritas DC Healthcare Alliance
- POS OA
- CareFirst Administrators
- TRICARE East Select
- Geisinger Medicare Advantage
- Kaiser Permanente Flexible Choice POS Cardiac Global
- CareFirst Blue Choice Opt Out Plus Open Access (POS)
- MedStar Family Choice DC Healthy Families
- CareFirst Maryland Indemnity or PPO
- Kaiser Permanente Medicare Plus
- Coventry of Delaware HMO/PPO
- MD IPA (HMO) & MD IPA Preferred Cardiac Global
- Optimum Choice & Optimum Choice Preferred (POS) Cardiac Global
- UnitedHealthcare and AARP Medicare Complete Plans
- CareFirst Dual Prime HMO-SNP
- Aetna Medicare Advantage HMO & PPO Plans
- Aetna Worker's Compensation Network
- CIGNA SureFit (HMO)
- Aetna Better Health of MD
- CareFirst Blue Preferred PPO
- IH-Open EPO Plus
- Healthy Blue (HMO, POS)
- Sentara Health
- Medicare FFS
- Private Fee-for-Service Plans (PFFS)
- Amerigroup DC Alliance
- CIGNA PPO
- Jai Medical Systems - Maryland Health Choice
- United Healthcare Select Plus (POS)
- Blue Choice Advantage
- CareFirst MedStar PPO
- IH-Open POS Plus
- Aetna VA Exchange
- TRICARE for Life East
- Choice POS II
- IH-HMO
- Kaiser Permanente Signature
- United Healthcare Options (PPO)
- OCI Direct (HMO)
- Aetna Premier 200PD
- Aetna HMO
- United Healthcare Navigate Cardiac Global
- United HealthCare Community Plan - Maryland Health Choice Program
- Anthem Federal Employee Program Basic
- First Health PPO
- Aetna Elect Choice/ Open Access (POS)
- Optimum Choice Preferred (POS)
- IH-Open HMO Option
- Maryland Physicians Care MCO
- IH-EPO Plus
- United Student Resources
- HUMANA/Choice Care Medicare Plans (Choice, Gold Choice)
- CareFirst NASCO
- Choice Care Network/HUMANA (PPO)
- M.D. IPA (HMO)
- Priority Partners - Maryland Health Choice
- MedStar Family Choice - Maryland Health Choice
- CareFirst Blue Choice Opt Out Open Access
- Johns Hopkins Advantage MD HMO
- Anthem BCBS of VA Key Care POS/PPO/Indemnity
- Coventry Health Care National Network PPO
- Kaiser Permanente Select Cardiac Global
- Aetna Advantage 6350PD
- BlueChoice Open Access
- Cigna Alliance Medicare (HMO)
- United Medicare Private Fee-for-Service (PFFS) plans
- DC/MD SHOP QHP Small Business Plans
- Optimum Choice
- Aetna Basic
- Cigna True Choice Medicare (PPO)
- CareFirst Blue Card Program
- CIGNA Connect EPO
- Kaiser Permanente Select
- MedStar Family Choice DC Healthcare Alliance
- Anthem Federal Employee Program Standard
- CareFirst (NCA) Indemnity
- TriWest Healthcare Alliance
- Lasso Healthcare - Medicare Medical Savings Account
- Aetna Classic 3500
- UnitedHealthcare Medicare Adv. Special Needs Plans
- Cigna Preferred Medicare (HMO)
- HumanaChoice PPO
- Uniformed Services Family Health Plan
- Magellan Complete Care of VA - VA Medicaid MCO
- CareFirst FEP Blue Focus
- CareFirst BlueCross BlueShield Advantage Core/Enhanced
- IH-Open POS II
- AMERIVANTAGE/Amerigroup Community Care
- Kaiser Permanente Select - Added Choice
- Kaiser Permanente Medicare Advantage Signature and Select
- M.D. IPA Preferred (POS)
- Anthem BCBS Medi Blue Plus
- Great-West Healthcare POS/CIGNA
- Aetna HMO-Open Access/Select OA/HealthFund/Health Network Option OA
- Mamsi Life & Health (Indem./PPO)
- Medicare Direct
- Aetna Advantage 5750
- Health Services for Children with Special Needs
- Navigate
- Johns Hopkins Advantage MD PLUS PPO
- BCBS of Michigan (BCN Advantage,Security Blue, Freedom, Medicare PLUS Blue Group PPO)
- Network OA
- CIGNA PPO Plus
- Mamsi Life & Health (Indem./PPO) Cardiac Global
- Choice POS II Open Access
- AmeriHealth Caritas DC Healthy Families
- Anthem BCBS Medi Blue Dual Adv
- Anthem BCBS Medi Blue SNP
- Kaiser Permanente HMO Plus and DHMO Plus Member
- OA Plus
- Anthem BCBS of VA HealthKeepers Plus
- Erickson Advantage Plans
- UHC Group Medicare Advantage Plans (HMO, POS, PPO)
- CIGNA HMO & Network (HMO)
- WellPoint Maryland - Maryland Health Choice
- UnitedHealthcare Individual Exchange Plans
- Alterwood Advanatge HMO & DSNP Plans
- HighMark
- CareFirst Group Medicare Advantage prescription drug benefit (PPO)
- Humana Medicare Advantage - PPO
- Aetna Quality Point of Service (POS)
- CareFirst MedStar Select PPO
- Cigna True Choice Plus Medicare (PPO)
- Aetna Managed Choice Open Access (POS)
- Anthem BCBS of VA HealthKeepers (POS & POS OA)
- TRICARE East Prime
- Aetna Advantage 6350
- Aetna Classic 5000PD
- HumanaChoice Honor's plan PPO
- Veterans Affairs Community Care Network
- IH-Open HMO
- United Healthcare Choice Cardiac Global
- CareFirst Federal Employee Program (Std. & Basic PPO)
- Employee Health Plan
- United Healthcare Choice
- Optima Family Care MCO - VA Medicaid MCO
- BCBS Out-of-State Medicare Plans (Blue Advantage)
- Aetna Elect Choice/ EPO (Aetna Health Fund)
- CareFirst EPO
- CareFirst BlueChoice HMO
- IH-POS Plus
- Police and Fire Clinic
- Private Health Care Systems (PPO)
- Aetna Classic 5000
- Humana Gold Plus HMO
- Aetna Better Health of VA
- Cigna Achieve Medicare (HMO C-SNP)
- Aetna Managed Choice (POS)
- First Health PPO
- Kaiser Permanente Signature - Added Choice
- CareFirst Group Medicare Advantage
- Anthem BCBS of VA HealthKeepers (HMO)
- UHC Passport
- UnitedHealthcare Medicare Advantage DSNP District of Columbia
- Medicare Advantage - Advantra Value (PPO)
- United Healthcare Community Plan - VA Medicaid MCO
- Aetna Medicare Advantage PFFS Plan
- HealthyBlue PPO
- CIGNA HMO Open Access
- United Healthcare Select HMO-EPO/NPP Cardiac Global
- IH-Indemnity
- Beech Street PPO
- Kaiser Permanente Flexible Choice 3-tier POS
- CareFirst Community Health Plan of MD
- Tricare Reserve Select
- Johns Hopkins Advantage MD PPO
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)