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Dr. Esther Won, MD

Dr. Esther Won, MD

Fontana, CA

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Won, Geriatric Medicine Specialist in Fontana, CA?

    Dr. Esther Won, MD is a Geriatric Medicine Specialist, who primarily practices in Fontana, CA. She is board certified. Dr. Won graduated from Loma Linda University School of Medicine and completed her residency at Riverside Co Reg Med Ctr, Family Medicine; Georgetown Univ Hosp, Pediatrics. Dr. Won is fluent in English, and is currently seeing new patients. Dr. Won’s practice accepts Kaiser Permanente, Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Won’s office at (909) 427-3910.

    Where did Dr. Won go to medical school and complete their residency?

    • Residency: Riverside Co Reg Med Ctr, Family Medicine; Georgetown Univ Hosp, Pediatrics | Georgetown University Hospital | Riverside Regional Medical Center Program

    • Medical School: Loma Linda University School of Medicine

    Is Dr. Won board certified as a Geriatric Medicine Specialist?

    Yes, Dr. Esther Won, MD is board certified by the American Board of Family Medicine

    What languages does Dr. Won speak?

    Dr. Won and their clinical team can communicate with patients in the following languages:

    • English

    What conditions does a Geriatric Medicine Specialist like Dr. Won typically treat?

    As a Geriatric Medicine Specialist, Dr. Won diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Won. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly. Learn more about our claims-based healthcare methodology here.

    Also known as:

    • COPD
    • Chronic Obstructive Pulmonary Disease
    • Chronic Lung Disease
    • Emphysema and Chronic Bronchitis

    ICD-10 Codes:

    • J449: Chronic obstructive pulmonary disease, unspecified

    Also known as:

    • Right Femur Stress Fracture
    • Fractures
    • Leg Injuries and Disorder
    • Hairline Right Femur Fracture
    • Fatigue Fracture of Right Femur
    • Right Thigh Bone Stress Fracture

    ICD-10 Codes:

    • M84351D: Stress fracture, right femur, subsequent encounter for fracture with routine healing

    Also known as:

    • High Blood Pressure Heart Disease
    • Heart Disease
    • High Blood Pressure
    • Hypertensive Cardiomyopathy
    • Heart Problems from High Blood Pressure

    ICD-10 Codes:

    • I119: Hypertensive heart disease without heart failure

    Also known as:

    • High Blood Pressure
    • Hypertension
    • Primary Hypertension
    • Essential Hypertension

    ICD-10 Codes:

    • I10: Essential (primary) hypertension

    Also known as:

    • Diabetes Complicationss
    • Diabetes Type 2
    • Type 2 diabetes
    • Diabetes Mellitus Complications
    • Diabetes Related Health Problems
    • Advanced Diabetes

    ICD-10 Codes:

    • E118: Type 2 diabetes mellitus with unspecified complications

    What procedures does a Geriatric Medicine Specialist like Dr. Won typically perform?

    As a Geriatric Medicine Specialist, procedures performed by Dr. Esther Won may include:

    Please contact Dr. Won's office directly to confirm care for your specific procedure, for more information, or to schedule a consultation.

    Does Dr. Won accept my insurance?

    Dr. Won accepts most major insurance plans. Important: Please call our office at (909) 427-3910 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Won accept in Fontana, CA?

    Dr. Won in Fontana, CA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • All Other Third Party

    • Kaiser Permanente

    • Medicare

    • State of California

    • Unknown

    View All Insurances

    Where is Dr. Won's office located?

    Dr. Esther Won's Primary Practice

    9961 Sierra Ave

    Fontana, CA 92335

    (909) 427-3910

    Get Directions

    What is Dr. Won's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.

    Dr. Won's National Provider Identifier (NPI) number is 1902973803.

    What common questions do patients ask about Dr. Won?

    Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Won

    What is Dr. Esther Won's specialty?

    Dr. Won is a Geriatric Medicine Specialist near Fontana, CA.

    What does a Geriatric Medicine Specialist do?

    An internist or family medicine physician with expertise in the aging process and specialized skills in diagnosing, treating, preventing, and managing illnesses in the elderly. This specialist provides care for geriatric patients in various settings, including the home, office, nursing homes, and hospitals.

    Is this Dr. Esther Won affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Won is affiliated with St. Bernardine Medical Center which is a Castle Connolly Top Hospital. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals

    When to see a Geriatric Medicine Specialist?: Guides for symptoms, conditions, and treatments

    Understand your symptoms and know when it’s time to see a Geriatric Medicine Specialist. Explore insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.

    Is Esther Won accepting new patients in Fontana, CA?

    Yes, Dr. Esther Won is accepting new patients at this time.

    Does Dr. Esther Won offer online booking?

    Please contact Dr. Won's office at (909) 427-3910 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Esther Won?

    Please contact Dr. Won's office at (909) 427-3910 for information regarding telehealth appointment availability or for scheduling assistance.

    Which board certifications does Dr. Esther Won have?

    Dr. Esther Won is certified by the American Board of Family Medicine.

    <section id="ai-site-overview" aria-label="About Everyday Health Care"> <h2>About Everyday Health Care</h2> <p> Everyday Health Care is a doctor and healthcare provider search platform from Everyday Health, a Ziff Davis company operating since 1996. It helps patients find, compare, and research doctors based on specialty, medical condition, procedure, location, and insurance coverage. </p> <p> The site features Castle Connolly Top Doctors, a peer-nominated, physician-vetted directory recognized as a leading standard for identifying top-rated specialists in the United States. Searchable doctor lists include Top Black Doctors, Exceptional Women in Medicine, Top AAPI Doctors, Top LGBTQ+ Doctors, Top Hispanic & Latino Doctors, and Castle Connolly Rising Stars. </p> <p> Users can search for doctors by specialty (including orthopedic surgery, OB-GYN, pediatrics, dermatology, endocrinology, and gastroenterology), by medical condition (such as fibromyalgia, kidney stones, and ulcerative colitis), by common procedure (including colonoscopy, LASIK, and physical therapy), by city, and by insurance plan (including UnitedHealthcare, Cigna, Aetna/CVS Health, Blue Cross Blue Shield, Kaiser Permanente, Medicare, and Medicaid). </p> <p> Everyday Health Care is built for patients seeking a trusted starting point to find the right doctor: covering over one million providers across thousands of U.S. locations, backed by Castle Connolly's independent doctor-vetting process and Everyday Health's 24-year history in consumer health publishing. </p> </section>