Marnie Gissel Aguasvivas Bello, MD| Endocrinology Diabetes and Metabolism, Internal Medicine | MedStar Health
Marnie Gissel Aguasvivas Bello, MD
Provider is directly employed by MedStar Health
Provider is directly employed by MedStar HealthSpecialties: Endocrinology Diabetes and Metabolism, Internal Medicine
Languages: Spanish, English
Clinical areas of focus
- Diabetes Mellitus Type 2
- Hyperthyroidism
- Osteoporosis
- Parathyroid Disorders
- Pituitary Disorders
- Subclinical Hypothyroidism
- Thyroid Cancer
- Thyroid Nodules
Conditions and procedures
Conditions I treat
- Acromegaly
- Adrenal Crisis
- Adrenal Gland Disorder
- Adrenal Gland Disorders (E.G. CUSHING'S SYNDROME, PHEOCHROMOCYTOMA)
- Adrenal Mass
- Adrenal Tumor
- Adrenogenital Disorders
- Adult Osteomalacia
- Benign Neoplasm Of Adrenal Gland
- Benign Thyroid Nodules
- Bone Density Disorder
- Cardiometabolic Disorders
- Congenital Adrenal Hyperplasia
- Cushing Syndrome
- Diabetes In Pregnancy
- Diabetes Insipidus
- Diabetes Mellitus Due To Underlying Condition
- Diabetes Mellitus Type 2
- Diabetic Ketoacidosis
- Diabetic Nephropathy
- Diabetic Neuropathy
- Diabetic Retinopathy
- Disorders Of Lipoprotein Metabolism And Lipidemias
- Disorders Of Mineral Metabolism
- Disorders Of Pituitary Gland
- Disorders Of Thyroid
- Drug Or Chemical Induced Diabetes Mellitus
- Endocrine Disorders
- Endocrine Hypertension
- Family History Of Malignant Neoplasm
- Gastrinoma
- Gestational Diabetes
- Grave's Disease
- Grave's Disease
- Growth Hormone Deficiency
- Hashimoto Thyroiditis
- High Blood Sugar
- High Cholesterol
- Hirsutism
- Hyperaldosteronism
- Hyperalimentation
- Hyperfunction Of Pituitary Gland
- Hyperglycemia
- Hyperparathyroidism
- Hyperprolactinemia
- Hyperthyroidism
- Hypertrichosis
- Hypocalcemia
- Hypoglycemia
- Hypoparathyroidism
- Insulin Resistance
- Klinefelter Syndrome
- Lipid Disorders
- Long Term Drug Therapy
- Low Testosterone Levels
- Male Hypogonadism
- Malignant Neoplasm Of Endocrine Glands
- Malignant Neoplasm Of Lymph Nodes
- Malignant Neuroendocrine Tumors
- Malnutrition
- Metabolic Syndrome
- Multiple Endocrine Neoplasia
- Nontoxic Goiter
- Obesity
- Osteochondropathies
- Osteopenia
- Osteoporosis
- Ovarian Cysts
- Ovarian Dysfunction
- Parathyroid Adenoma
- Parathyroid Cancer
- Parathyroid Disorders
- Pituitary Adenoma
- Pituitary Apoplexy
- Pituitary Cancer
- Pituitary Disorders
- Poisoning
- Polycystic Ovary Syndrome
- Polyglandular Dysfunction
- Postmenopausal Osteoporosis
- Postprocedural Complications
- Prediabetes
- Presence Of Functional Implants
- Primary Hyperparathyroidism
- Proteinuria
- Sex Chromosome Abnormalities, Male Phenotype
- Subclinical Hypothyroidism
- Testicular Dysfunction
- Thyroid Cancer
- Thyroid Goiter
- Thyroid Nodules
- Thyroid Storm
- Thyrotoxic Crisis
- Toxic Goiter
- Turner Syndrome
- Type 2 Diabetes
- Type 2 Diabetes In Children
- Type 2 Diabetes Mellitus
- Vitamin D Deficiency Rickets
- Vitamin Deficiency
- Weight Loss
- West Syndrome
Procedures I perform
- Acromegaly Treatment
- Adrenal Cancer Treatment
- Adrenal Crisis Treatment
- Adrenal Disease Treatment
- Adrenal Disorder Treatment
- Adrenal Gland Cancer Management
- Adrenal Hormone Management
- Adrenal Hormone Regulation
- Adrenal Insufficiency Treatment
- Adrenal Surgery
- Adrenal Tumor Treatment
- Aldosteronoma Management
- Anemia Management
- Automated Insulin Delivery
- Bariatric Nutrition Counseling
- Bariatric Surgery Counseling
- Bariatric Surgery Nutrition Counseling
- Binge Eating Disorder Treatment
- Blood Glucose Correction For High Readings
- Body Mass Index (BMI) Evaluation
- Carbohydrate Counting For Meal Planning
- Cardiovascular Health Nutrition Counseling
- Cervical Lymph Node Dissection
- Chronic Fatigue Syndrome Nutrition Counseling
- Continuous Glucose Monitoring System
- Continuous Glucose Monitoring System Training
- Coronary Artery Disease Nutrition Counseling
- Cushing Syndrome Management
- Cushing Syndrome Treatment
- Cushing's Syndrome Treatment
- Cystic Fibrosis Nutrition Counseling
- Diabetes Complications Prevention
- Diabetes Foot Care
- Diabetes Management
- Diabetes Self-Care Planning
- Diabetes Self-Efficacy Assessment
- Diabetes Self-Management
- Diabetes Support Group Facilitation
- Diabetes Treatment
- Diabetic Eye Exam
- Diabetic Foot Exam
- Diabetic Ketoacidosis Risk Assessment
- Diabetic Ketoacidosis Treatment
- Diabetic Retinopathy Nutrition Counseling
- Dietary Assessment
- Dietary Management Of Cushing Syndrome
- Dietary Supplement Counseling
- Dietary Treatment Of Goiter
- Eating For Optimal Energy
- Elder Abuse Screening And Support
- Electrolyte Management
- Endocrine Disorder Treatment
- Endocrine Disorders Treatment
- Endocrine Tumor Treatment
- Endometriosis Nutrition Counseling
- Endurance Sports Nutrition
- Endurance Sports Nutrition Counseling
- Epigenetic Nutrition Counseling
- Familial Medullary Thyroid Carcinoma (FMTC) Treatment
- Fatigue Management
- Fine-Needle Aspiration Of Thyroid Nodule
- Flexibility And Mobility Nutrition Counseling
- Fluid And Electrolyte Management
- Geriatric Nutrition Counseling
- Gestational Diabetes Management
- Gland Disorder Treatment
- Gland Dysfunction Treatment
- Glaucoma Nutrition Counseling
- Glucometer Use
- Glucose Control Management
- Glycemic Variability Assessment
- Goiter Treatment
- Grave's Disease Treatment
- Grave's Orbitopathy Treatment
- Growth Hormone Follow-Up
- Growth Hormone Level Monitoring
- Growth Hormone Screening
- Gut Health Nutrition Counseling
- Hashimoto's Thyroiditis Treatment
- Healthy Weight Loss Guidance
- High Cholesterol Management
- High Cholesterol Nutrition Counseling
- Hormone Balancing Nutrition Counseling
- Hormone Imbalance Treatment
- Hormone Replacement Therapy
- Hypercalcemia Nutrition Management
- Hypercalcemia Treatment
- Hyperglycemic Hyperosmolar Nonketotic Syndrome (HHNS) Treatment
- Hyperparathyroidism Dietary Treatment
- Hyperthyroidism Nutrition Counseling
- Hyperthyroidism Treatment
- Hypoparathyroidism Treatment
- Hypothyroidism Diet Planning
- Hypothyroidism Treatment
- Insulin Dose Titration
- Insulin Pen Training
- Insulin Resistance Nutrition Counseling
- Insulin Resistance Treatment
- Insulin Syringe Use
- Islet Xenotransplant
- Ketogenic Diet Planning
- Kidney Disease Treatment
- Kidney Transplant Education
- Lipid Profile
- Meal Planning
- Menopause Nutrition Counseling
- Mind-Body Nutrition Counseling
- Mineral Deficiency Treatment
- Multiple Endocrine Neoplasia (MEN) Testing
- Neuroendocrine Disorder Treatment
- Neuroendocrine Tumor Treatment
- Nutrient Deficiency Screening
- Nutrient Supplementation Planning
- Nutrition Counseling
- Nutrition Science Education
- Obesity Treatment
- One-On-One Diabetes Education
- Oral Medication Therapy For Diabetes
- Osteoporosis Nutrition Counseling
- Osteoporosis Prevention Treatment
- Pancreatic Disease Management
- Paraganglioma Treatment
- Parathyroid Biopsy
- Parathyroid Cancer Treatment
- Parathyroid Disease Treatment
- Parathyroid Disorder Treatment
- Parathyroid Hormone Regulation
- Parathyroid Tumor Surgery
- Parathyroid Ultrasound
- Pcos Treatment
- Perimenopause Nutrition Counseling
- Personalized Meal Planning
- Pheochromocytoma Treatment
- Physical Activity Counseling
- Pioglitazone Therapy
- Pituitary Apoplexy Treatment
- Pituitary Biopsy
- Pituitary Cancer Treatment
- Pituitary Disorder Treatment
- Pituitary Disorders Nutrition Counseling
- Pituitary Gland Surgery
- Pituitary Medication Management
- Pituitary Surgery
- Pituitary Tumor Embolization
- Pituitary Tumor Surgery
- Pituitary Tumor Treatment
- Polycystic Ovary Syndrome (PCOS) Treatment
- Post-Operative Nutrition Counseling
- Pre- And Post-Bariatric Surgery Nutrition Counseling
- Pre- And Post-Chemotherapy Nutrition Counseling
- Prediabetes Management
- Pregnancy Nutrition Counseling
- Prenatal Substance Abuse Screening
- Primary Hyperparathyroidism Treatment
- Probiotic Therapy
- Prolactinoma Treatment
- Psoriasis Nutrition Counseling
- Resting Metabolic Rate (RMR) Testing
- Secondary Hyperparathyroidism Treatment
- Sports Nutrition Counseling
- Sports Performance Nutrition Counseling
- Strength Training Nutrition Counseling
- Stress Management For Diabetes
- Stroke Nutrition Counseling
- Surgical Recovery Nutrition Counseling
- Tertiary Hyperparathyroidism Treatment
- Testicular Ultrasound
- Thyroid Acropachy Treatment
- Thyroid Biopsy
- Thyroid Cancer Ablation
- Thyroid Cancer Chemotherapy
- Thyroid Cancer Lymph Node Dissection
- Thyroid Cancer Treatment
- Thyroid Crisis Treatment
- Thyroid Dermopathy Treatment
- Thyroid Disease Management
- Thyroid Disease Treatment
- Thyroid Health Nutrition Counseling
- Thyroid Lymphoma Treatment
- Thyroid Medication Management
- Thyroid Metastasis Treatment
- Thyroid Nodule Treatment
- Thyroid Storm Surgery
- Thyroid Storm Treatment
- Thyroidectomy
- Total Parenteral Nutrition
- Vitamin And Mineral Deficiency Treatment
- Vitamin Deficiency Treatment
- Weight Management For Healthy Weight
- Weight Measurement
- Yoga Coaching
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-Open HMO Option
- Anthem Federal Employee Program Basic
- CareFirst Blue Choice Opt Out Open Access
- CIGNA Connect EPO
- TRICARE East Prime
- Aetna Elect Choice/ Open Access (POS)
- CareFirst Maryland Point of Service Plan
- CareFirst FEP Blue Focus
- Select HMO/HealthFund/Health Network
- AmeriHealth Caritas DC Healthy Families
- Aetna Signature Administrator PPO/TPA
- Cigna Achieve Medicare (HMO C-SNP)
- Anthem Federal Employee Program Standard
- Tricare Reserve Select
- HighMark
- Aetna Classic 5000
- IH-HMO
- Kaiser Maryland Medicaid MCO
- Coventry Health Care National Network PPO
- Private Health Care Systems (PPO)
- Aetna Managed Choice (POS)
- CareFirst MedStar Select PPO
- UnitedHealthcare Medicare Advantage DSNP District of Columbia
- Amerigroup DC Healthy Families
- CareFirst Federal Employee Program (Std. & Basic PPO)
- Kaiser Permanente Signature
- Medicare FFS
- Aetna Classic 3500
- Uniformed Services Family Health Plan
- UnitedHealthcare and AARP Medicare Complete Plans
- Aetna Advantage 5750
- Kaiser Permanente Medicare Plus
- Lasso Healthcare - Medicare Medical Savings Account
- Healthy Blue (HMO, POS)
- Aetna VA Exchange
- Anthem BCBS of VA HealthKeepers (HMO)
- Johns Hopkins Advantage MD PPO
- Aetna Better Health of VA
- Choice POS II Open Access
- Aetna Open Choice (PPO)
- BlueChoice Open Access
- Aetna Managed Choice Open Access (POS)
- CareFirst Community Health Plan of MD
- CIGNA EPO
- HumanaChoice PPO
- M.D. IPA (HMO)
- IH-PPO
- Medicare Advantage - Advantra Value (PPO)
- CIGNA PPO Plus
- Mamsi Life & Health (Indem./PPO)
- NYC Medicare Advantage Plus
- Aetna Medicare Advantage HMO & PPO Plans
- Advantra Platinum (PPO)
- Jai Medical Systems - Maryland Health Choice
- United Healthcare Select HMO-EPO/NPP Cardiac Global
- Aetna Basic
- Kaiser Permanente Signature - Added Choice
- United Healthcare Options (PPO)
- Navigate
- Optimum Choice & Optimum Choice Preferred (POS) Cardiac Global
- Cigna True Choice Medicare (PPO)
- Geisinger Medicare Advantage
- Anthem BCBS Medi Blue Plus
- CareFirst Group Medicare Advantage prescription drug benefit (PPO)
- Choice Fund PPO
- Erickson Advantage Plans
- CareFirst Blue Choice Opt Out Plus Open Access (POS)
- Johns Hopkins Advantage MD HMO
- Amerigroup DC Alliance
- CareFirst MedStar PPO
- Kaiser Permanente Flexible Choice 3-tier POS
- Beech Street PPO
- Kaiser Permanente HMO Plus and DHMO Plus Member
- CareFirst NASCO
- Optimum Choice
- United Student Resources
- MultiPlan, Inc
- BCBS of Michigan (BCN Advantage,Security Blue, Freedom, Medicare PLUS Blue Group PPO)
- BCBS Out-of-State Medicare Plans (Blue Advantage)
- Magellan Complete Care of VA - VA Medicaid MCO
- Private Fee-for-Service Plans (PFFS)
- United Healthcare Choice
- UHC Passport
- AmeriHealth Caritas DC Healthcare Alliance
- CareFirst Group Medicare Advantage
- Choice Care Network/HUMANA (PPO)
- Anthem BCBS Medi Blue SNP
- Core Essential (HMO)
- Anthem BCBS of VA HealthKeepers (POS & POS OA)
- Medicare Direct
- CIGNA Indemnity
- IH-Open HMO
- Health Services for Children with Special Needs
- Aetna HMO-Open Access/Select OA/HealthFund/Health Network Option OA
- Anthem BCBS of VA Key Care POS/PPO/Indemnity
- CareFirst Administrators
- HumanaChoice Honor's plan PPO
- Aetna HMO
- IH-Open EPO Plus
- CIGNA POS/Network POS
- Great-West Healthcare POS/CIGNA
- Aetna Advantage 6350
- CIGNA HMO Open Access
- United Healthcare Community Plan - VA Medicaid MCO
- Police and Fire Clinic
- UnitedHealthcare Individual Exchange Plans
- Aetna Traditional Choice (PPO)
- Network OA
- Kaiser Permanente Select Cardiac Global
- Cigna Preferred Medicare (HMO)
- United Healthcare Choice Plus Cardiac Global
- CareFirst Blue Preferred PPO
- Aetna Better Health of MD
- CIGNA PPO
- AMERIVANTAGE/Amerigroup Community Care
- Optima Family Care MCO - VA Medicaid MCO
- Aetna Classic 5000PD
- MedStar Family Choice - Maryland Health Choice
- Aetna Premier 200PD
- CareFirst Dual Prime HMO-SNP
- Choice POS
- Humana Medicare Advantage - HMO Open Access
- Coventry Health Care of Virginia
- MedStar Family Choice DC Healthcare Alliance
- Humana Gold Plus HMO
- IH-Network Only Plus
- CareFirst Maryland Indemnity or PPO
- Cigna True Choice Plus Medicare (PPO)
- TriWest Healthcare Alliance
- TRICARE for Life East
- Priority Partners - Maryland Health Choice
- Anthem BCBS of VA HealthKeepers Plus
- UnitedHealthcare Medicare Adv. Special Needs Plans
- Choice POS II
- IH-Open POS II
- United Healthcare Choice Plus
- IH-Open Network Only Plus
- Cigna TotalCare (HMO D-SNP)
- OCI Direct (HMO)
- HealthyBlue PPO
- Anthem BCBS Medi Blue Dual Adv
- TRICARE East Select
- Kaiser Permanente Medicare Advantage Signature and Select
- United HealthCare Community Plan - Maryland Health Choice Program
- Cigna Alliance Medicare (HMO)
- CIGNA SureFit (HMO)
- Kaiser Permanente Flexible Choice POS Cardiac Global
- Aetna Advantage 6350PD
- Fee-for-Service (FFS) District of Columbia, Maryland and Virginia Medicaid
- IH-POS
- Veterans Affairs Community Care Network
- IH-Open POS Plus
- First Health PPO
- Kaiser Permanente Select
- MedStar Family Choice DC Healthy Families
- Humana Medicare Advantage - PPO
- HUMANA/Choice Care Medicare Plans (Choice, Gold Choice)
- Coventry of Delaware HMO/PPO
- M.D. IPA Preferred (POS)
- Kaiser Permanente Select - Added Choice
- United Healthcare Navigate Cardiac Global
- Aetna Student Health Insurance
- DC/MD SHOP QHP Small Business Plans
- Aetna Elect Choice/ EPO (Aetna Health Fund)
- Aetna Worker's Compensation Network
- CareFirst BlueCross BlueShield Advantage Core/Enhanced
- OA Plus
- IH-POS Plus
- CareFirst (NCA) Indemnity
- United Healthcare Select Plus (POS)
- Aetna Quality Point of Service (POS)
- CareFirst BlueChoice HMO
- Kaiser Permaenete Signature - Added Choice Cardiac Global
- Blue Choice Advantage
- Optimum Choice Preferred (POS)
- POS OA
- Employee Health Plan
- UHC Group Medicare Advantage Plans (HMO, POS, PPO)
- Aetna Medicare Advantage PFFS Plan
- CareFirst Blue Card Program
- United Healthcare Choice Cardiac Global
- MD IPA (HMO) & MD IPA Preferred Cardiac Global
- Sentara Health
- Alterwood Advanatge HMO & DSNP Plans
- CIGNA HMO & Network (HMO)
- Johns Hopkins Advantage MD PLUS PPO
- CareFirst EPO
- United Medicare Private Fee-for-Service (PFFS) plans
- United Healthcare Select HMO - EPO/NPP
- IH-EPO Plus
- IH-Indemnity
- First Health PPO
- Mamsi Life & Health (Indem./PPO) Cardiac Global
- Options PPO Cardiac Global
- Maryland Physicians Care MCO
- WellPoint Maryland - Maryland Health Choice
Education
Board Certification: American Board of Internal Medicine, Internal Medicine
Board Certification: American Board of Internal Medicine, Endocrinology
Fellowship: MedStar Union Memorial Hospital at Baltimore (2024)
Residency: Hackensack University Medical Center-GME (2019)
Medical School: Instituto Tecnologico de Santo Domingo (2013)