About me
Nelly Arnouk, MD, is a board-certified Internal Medicine physician and endocrinologist at MedStar Health. She sees patients at the Good Health Center at MedStar Good Samaritan Hospital. Dr. Arnouk specializes in the diagnosis and treatment of diabetes, thyroid disease, and obesity. Her particular interest is in osteoporosis and bone health. She has published research in hypercalcemia and endocrine side effects of cancer treatment with immune checkpoint inhibitors. She is part of the Bone Health and Fracture Prevention Program team at MedStar Health. Dr. Arnouk completed her residency in Internal Medicine and her fellowship program in Endocrinology at MedStar Union Memorial Hospital.
She is a member of the American Association of Clinical Endocrinologists and the American Endocrinology Society.
Dr. Arnouk is fluent in Arabic.
Philosphy of care
“My philosophy of care revolves around understanding that every patient’s journey is unique. I am committed to listening attentively to your concerns, valuing your input, and tailoring our medical plan to align with your individual needs and goals. Together, we will embark on a shared path toward optimal health and well-being. Guided by the latest advancements in endocrinology, I am dedicated to providing evidence-based treatments and innovative solutions."
Clinical areas of focus
- Adult Osteomalacia
- Cardiometabolic Disorders
- Diabetes (TYPE 1)
- Fine-Needle Aspiration Of Thyroid Nodule
- Osteopenia
- Osteoporosis Prevention Treatment
- Pancreatitis
- Thyroid Disorders
- Type 2 Diabetes Mellitus
Conditions and procedures
Conditions I treat
- Abnormal Urine Test Results
- Adrenal Crisis
- Adult Osteomalacia
- Bone Density Disorder
- Bone Discontinuity
- Cardiometabolic Disorders
- Deforming Dorsopathies
- Diabetes (TYPE 1)
- Disorders Of Amino
- Disorders Of Carbohydrate Metabolism
- Disorders Of Lipoprotein Metabolism And Lipidemias
- Disorders Of Mineral Metabolism
- Disorders Of Renal Tubular Function
- Family History Of Malignant Neoplasm
- Gastrinoma
- High Cholesterol
- Hypercalcemia (ELEVATED CALCIUM LEVELS)
- Hyperparathyroidism
- Hypertrichosis
- Hypertriglyceridemia
- Hypocalcemia
- Long Term Drug Therapy
- Male Impotence
- Nonscarring Hair Loss
- Obesity
- Orbit Disorders
- Osteopenia
- Osteoporosis
- Ovarian Dysfunction
- Pancreatitis
- Pelvic Organ Injury
- Poisoning
- Postprocedural Complications
- Testicular Dysfunction
- Thyroid Disorders
- Thyroid Nodules
- Type 2 Diabetes Mellitus
Procedures I perform
- Acid-Base Management
- Acromegaly Treatment
- Adrenal Crisis Treatment
- Adrenal Hormone Regulation
- Adrenal Insufficiency Treatment
- Anaplastic Thyroid Cancer Treatment
- Bone Density Test
- Continuous Glucose Monitoring System
- Cushing's Disease Surgery
- Cushing's Disease Treatment
- Cushing's Syndrome Treatment
- Dexa Scans
- Dexamethasone Suppression Test
- Diabetes Eye Care
- Diabetes-Related Nerve Care
- Dopamine Therapy
- Endocrine And Reproductive Pathology
- Enterectomy
- Exercise Plan
- Fasting Blood Sugar
- Fine-Needle Aspiration Of Thyroid Nodule
- Follicular Thyroid Cancer Treatment
- Fractorav
- Genetic Mutation Testing
- Genetic Testing For Stargardt Disease
- Gestational Diabetes Management
- Glycated Hemoglobin Test
- Growth Hormone Deficiency Treatment
- Growth Hormone Excess Treatment
- Growth Hormone Stimulation Test
- High Cholesterol Management
- Homocysteine Lowering Therapy
- Hormone Replacement Therapy
- Hormone Replacement Therapy In Menopause
- Hormone Therapy For Low Testosterone
- Insulin Pen Training
- Insulin-Like Growth Factor-1 (IGF-1) Test
- Islet Xenotransplant
- Ketoacidosis Treatment
- Kidney Disease Treatment
- Lipid Disorder Treatment
- Medullary Thyroid Cancer Treatment
- Multiple Endocrine Neoplasia (MEN) Testing
- Obesity Treatment
- One-On-One Diabetes Education
- Osteoporosis Prevention Treatment
- Parathyroid Tumor Surgery
- Pioglitazone Therapy
- Prolactinoma Surgery
- Retinopathy Screening
- Stem Cell Therapy
- Testicular Ultrasound
- Thyroid Cancer Treatment
- Thyroid Cyst Treatment
- Thyroid Lymphoma Treatment
- Thyroid Storm Surgery
- Thyroidectomy
- Time Management Training
- Weight Management Program
Practice locations
Distance from Change Location Enter your Location
5601 Loch Raven Blvd
GHC O'Neill Bldg 2nd Fl
Baltimore, MD, 21239
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 MedStar PPO
- CareFirst NASCO
- UnitedHealthcare Medicare Advantage DSNP District of Columbia
- Cigna True Choice Plus Medicare (PPO)
- HumanaChoice Honor's plan PPO
- Kaiser Permanente Select - Added Choice
- Aetna HMO-Open Access/Select OA/HealthFund/Health Network Option OA
- Core Essential (HMO)
- United Healthcare Select Plus (POS)
- MedStar Family Choice DC Healthy Families
- Navigate
- Aetna Advantage 6350
- CareFirst Federal Employee Program (Std. & Basic PPO)
- Optimum Choice Preferred (POS)
- Health Services for Children with Special Needs
- POS OA
- Anthem Federal Employee Program Standard
- Kaiser Maryland Medicaid MCO
- Mamsi Life & Health (Indem./PPO)
- Humana Medicare Advantage - PPO
- Kaiser Permanente Select
- Fee-for-Service (FFS) District of Columbia, Maryland and Virginia Medicaid
- IH-HMO
- Advantra Platinum (PPO)
- Private Health Care Systems (PPO)
- CareFirst Group Medicare Advantage
- Kaiser Permanente Flexible Choice 3-tier POS
- M.D. IPA (HMO)
- HighMark
- United Healthcare Navigate Cardiac Global
- NYC Medicare Advantage Plus
- Aetna HMO
- Aetna Quality Point of Service (POS)
- CareFirst FEP Blue Focus
- United Healthcare Choice Cardiac Global
- CIGNA POS/Network POS
- CIGNA PPO
- Blue Choice Advantage
- Aetna VA Exchange
- CareFirst Administrators
- Kaiser Permanente Signature
- Healthy Blue (HMO, POS)
- Choice Fund PPO
- Johns Hopkins Advantage MD PLUS PPO
- United Healthcare Select HMO - EPO/NPP
- Choice POS II
- Aetna Traditional Choice (PPO)
- Network OA
- Amerigroup DC Alliance
- CareFirst (NCA) Indemnity
- CIGNA EPO
- CIGNA Indemnity
- Kaiser Permanente Signature - Added Choice
- UnitedHealthcare and AARP Medicare Complete Plans
- Aetna Advantage 5750
- Aetna Signature Administrator PPO/TPA
- Amerigroup DC Healthy Families
- Beech Street PPO
- HealthyBlue PPO
- HumanaChoice PPO
- IH-Open HMO
- Maryland Physicians Care MCO
- OCI Direct (HMO)
- Aetna Student Health Insurance
- Employee Health Plan
- MedStar Family Choice DC Healthcare Alliance
- Lasso Healthcare - Medicare Medical Savings Account
- Mamsi Life & Health (Indem./PPO) Cardiac Global
- Humana Medicare Advantage - HMO Open Access
- Medicare Direct
- Alterwood Advanatge HMO & DSNP Plans
- Kaiser Permanente Flexible Choice POS Cardiac Global
- IH-Open HMO Option
- MD IPA (HMO) & MD IPA Preferred Cardiac Global
- CareFirst Blue Preferred PPO
- TRICARE for Life East
- AMERIVANTAGE/Amerigroup Community Care
- Aetna Elect Choice/ EPO (Aetna Health Fund)
- AmeriHealth Caritas DC Healthcare Alliance
- TriWest Healthcare Alliance
- Aetna Classic 3500
- Aetna Better Health of VA
- Aetna Managed Choice Open Access (POS)
- WellPoint Maryland - Maryland Health Choice
- United Healthcare Choice
- Humana Gold Plus HMO
- Choice Care Network/HUMANA (PPO)
- M.D. IPA Preferred (POS)
- Cigna True Choice Medicare (PPO)
- Coventry Health Care National Network PPO
- United Healthcare Choice Plus Cardiac Global
- Great-West Healthcare POS/CIGNA
- Aetna Basic
- CIGNA PPO Plus
- Coventry Health Care of Virginia
- IH-EPO Plus
- CareFirst Group Medicare Advantage prescription drug benefit (PPO)
- Uniformed Services Family Health Plan
- United Healthcare Choice Plus
- IH-Network Only Plus
- CIGNA SureFit (HMO)
- IH-Open POS Plus
- United Healthcare Community Plan - VA Medicaid MCO
- IH-POS Plus
- Aetna Better Health of MD
- OA Plus
- Priority Partners - Maryland Health Choice
- Optimum Choice
- HUMANA/Choice Care Medicare Plans (Choice, Gold Choice)
- First Health PPO
- IH-Open POS II
- TRICARE East Select
- Medicare FFS
- Anthem BCBS of VA HealthKeepers (HMO)
- Select HMO/HealthFund/Health Network
- Optima Family Care MCO - VA Medicaid MCO
- Choice POS
- CareFirst BlueChoice HMO
- UHC Group Medicare Advantage Plans (HMO, POS, PPO)
- CareFirst Blue Choice Opt Out Plus Open Access (POS)
- Aetna Medicare Advantage HMO & PPO Plans
- Cigna Alliance Medicare (HMO)
- First Health PPO
- IH-POS
- UHC Passport
- United Medicare Private Fee-for-Service (PFFS) plans
- Anthem BCBS Medi Blue SNP
- Kaiser Permaenete Signature - Added Choice Cardiac Global
- CareFirst Community Health Plan of MD
- MedStar Family Choice - Maryland Health Choice
- Cigna TotalCare (HMO D-SNP)
- Kaiser Permanente Select Cardiac Global
- Aetna Premier 200PD
- Medicare Advantage - Advantra Value (PPO)
- Anthem BCBS of VA Key Care POS/PPO/Indemnity
- IH-PPO
- CIGNA HMO Open Access
- UnitedHealthcare Medicare Adv. Special Needs Plans
- Aetna Advantage 6350PD
- Aetna Classic 5000PD
- CareFirst Maryland Point of Service Plan
- CareFirst Dual Prime HMO-SNP
- Jai Medical Systems - Maryland Health Choice
- BCBS of Michigan (BCN Advantage,Security Blue, Freedom, Medicare PLUS Blue Group PPO)
- Anthem Federal Employee Program Basic
- BlueChoice Open Access
- Optimum Choice & Optimum Choice Preferred (POS) Cardiac Global
- Anthem BCBS Medi Blue Plus
- MultiPlan, Inc
- United Student Resources
- Anthem BCBS of VA HealthKeepers (POS & POS OA)
- CareFirst Blue Choice Opt Out Open Access
- Anthem BCBS Medi Blue Dual Adv
- Options PPO Cardiac Global
- TRICARE East Prime
- AmeriHealth Caritas DC Healthy Families
- CIGNA HMO & Network (HMO)
- Coventry of Delaware HMO/PPO
- Police and Fire Clinic
- Geisinger Medicare Advantage
- IH-Open Network Only Plus
- Tricare Reserve Select
- Choice POS II Open Access
- CareFirst EPO
- Cigna Achieve Medicare (HMO C-SNP)
- Johns Hopkins Advantage MD PPO
- Kaiser Permanente Medicare Plus
- UnitedHealthcare Individual Exchange Plans
- CareFirst BlueCross BlueShield Advantage Core/Enhanced
- United HealthCare Community Plan - Maryland Health Choice Program
- Anthem BCBS of VA HealthKeepers Plus
- Johns Hopkins Advantage MD HMO
- Erickson Advantage Plans
- Aetna Medicare Advantage PFFS Plan
- Veterans Affairs Community Care Network
- Aetna Managed Choice (POS)
- United Healthcare Options (PPO)
- Magellan Complete Care of VA - VA Medicaid MCO
- Kaiser Permanente HMO Plus and DHMO Plus Member
- United Healthcare Select HMO-EPO/NPP Cardiac Global
- Cigna Preferred Medicare (HMO)
- Aetna Open Choice (PPO)
- Sentara Health
- CIGNA Connect EPO
- BCBS Out-of-State Medicare Plans (Blue Advantage)
- CareFirst Maryland Indemnity or PPO
- Kaiser Permanente Medicare Advantage Signature and Select
- Aetna Classic 5000
- Private Fee-for-Service Plans (PFFS)
- DC/MD SHOP QHP Small Business Plans
- Aetna Elect Choice/ Open Access (POS)
- CareFirst Blue Card Program
- IH-Indemnity
- IH-Open EPO Plus
- Aetna Worker's Compensation Network
- CareFirst MedStar Select PPO
Education
Board Certification: American Board of Internal Medicine, Internal Medicine
Board Certification: American Board of Internal Medicine, Endocrinology, Diabetes and Metabolism
Fellowship: MedStar Union Memorial Hospital at Baltimore (2023)
Residency: MedStar Union Memorial Hospital at Baltimore (2019)
Medical School: University of Damascus School of Medicine (2013)
Awards
- Baltimore magazine, Top Doctor, 2024, 2025