EverydayHealthLogo
Dr. Derek Mafong, MD

Dr. Derek Mafong, MD

San Diego, CA

18 Years of Experience

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Mafong, Endocrinologist in San Diego, CA?

    Dr. Derek Mafong, MD is an Endocrinologist, who primarily practices in San Diego, CA with 2 additional practice locations. He has been practicing for over 18 years and is board certified. Dr. Mafong completed his residency at Western Reserve Case System. Dr. Mafong is fluent in English and Spanish, and is currently seeing new patients. Dr. Mafong’s practice accepts Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Mafong’s office at (619) 543-5840.

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

    • Fellowship: University of California At San Diego

    • Residency: Western Reserve Case System

    Is Dr. Mafong board certified as an Endocrinologist?

    Yes, Dr. Derek Mafong, MD is board certified by the American Board of Internal Medicine

    What languages does Dr. Mafong speak?

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

    • English

    • Spanish

    What conditions does an Endocrinologist like Dr. Mafong typically treat?

    As an Endocrinologist, Dr. Mafong 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. Mafong. 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:

    • Age-Related Osteoporosis
    • Fractures
    • Osteoporosis
    • Senile Osteoporosis
    • Primary Osteoporosis
    • Bone Thinning from Aging

    ICD-10 Codes:

    • M810: Age-related osteoporosis without current pathological fracture

    Also known as:

    • Transgender Identity
    • Gender Dysphoria
    • Transsexual Identity
    • Gender Transition

    ICD-10 Codes:

    • F640: Transsexualism

    Also known as:

    • Single Nontoxic Thyroid Nodule
    • Thyroid Disease
    • Benign Thyroid Nodule
    • Solitary Thyroid Nodule

    ICD-10 Codes:

    • E041: Nontoxic single thyroid nodule

    Also known as:

    • Thyroid Cancer
    • Thyroid Carcinoma
    • Malignant Thyroid Nodule
    • Thyroid Gland Cancer

    ICD-10 Codes:

    • C73: Malignant neoplasm of thyroid gland

    Also known as:

    • Nontoxic Multinodular Goiter
    • Thyroid Disease
    • Multinodular Goiter
    • Lumpy Enlarged Thyroid

    ICD-10 Codes:

    • E042: Nontoxic multinodular goiter

    Also known as:

    • Graves' Disease
    • Hyperthyroidism
    • Graves' disease
    • Graves Disease
    • Hyperthyroidism with Goiter
    • Toxic Diffuse Goiter
    • Overactive Thyroid with Enlarged Gland

    ICD-10 Codes:

    • E0500: Thyrotoxicosis with diffuse goiter without thyrotoxic crisis or storm

    Does Dr. Mafong accept my insurance?

    Dr. Mafong accepts most major insurance plans. Important: Please call our office at (619) 543-5840 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Mafong accept in San Diego, CA?

    Dr. Mafong in San Diego, 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

    • Blue Shield of California

    • CVS Health (formerly Aetna)

    • Elevance Health Inc. (formerly Anthem)

    • Federal government of the United States

    • Medicare

    • Molina Healthcare

    • Unknown

    View All Insurances

    Where is Dr. Mafong's office located?

    Dr. Derek Mafong's Primary Practice

    3851 Shaw Ridge Rd

    San Diego, CA 92130

    (619) 543-5840

    Get Directions

    Dr. Derek Mafong's Practice 2

    4168 Front St

    San Diego, CA 92103

    Get Directions

    Dr. Derek Mafong's Practice 3

    9350 Campus Point Dr

    La Jolla, CA 92037

    Get Directions

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

    Dr. Mafong's National Provider Identifier (NPI) number is 1699781633.

    What common questions do patients ask about Dr. Mafong?

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

    What is Dr. Derek Mafong's specialty?

    Dr. Mafong is a Endocrinologist near San Diego, CA.

    What does an Endocrinologist do?

    An internist specializing in disorders of the endocrine glands, including the thyroid and adrenal glands. This specialist also manages a range of conditions such as diabetes, metabolic and nutritional disorders, obesity, pituitary disorders, and menstrual and sexual health issues.

    Is this Dr. Derek Mafong affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Mafong is affiliated with Kaiser Permanente San Diego Medical Center, Kaiser Permanente Los Angeles Medical Center which are a Castle Connolly Top Hospitals. 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 an Endocrinologist?: Guides for symptoms, conditions, and treatments

    Understand your symptoms and know when it’s time to see an Endocrinologist. 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 Derek Mafong accepting new patients in San Diego, CA?

    Yes, Dr. Derek Mafong is accepting new patients at this time.

    Does Dr. Derek Mafong offer online booking?

    Please contact Dr. Mafong's office at (619) 543-5840 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Derek Mafong?

    Please contact Dr. Mafong's office at (619) 543-5840 for information regarding telehealth appointment availability or for scheduling assistance.

    Which board certifications does Dr. Derek Mafong have?

    Dr. Derek Mafong is certified by the American Board of Internal 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>