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Dr. Leopoldo Alonzo, MD

Fontana, CA

27 Years of Experience

Accepting patients

    Who is Dr. Alonzo, Obstetrician / Gynecologist (OBGYN) in Fontana, CA?

    Dr. Leopoldo Alonzo, MD is an Obstetrician / Gynecologist (OBGYN), who primarily practices in Fontana, CA with 1 additional practice location. He has been practicing for over 27 years and is board certified by the American Board of Obstetrics and Gynecology. Dr. Alonzo completed his residency at Kaiser Fndn Hosp-Los Angeles, Obstetrics And Gynecology. Dr. Alonzo is fluent in English and Spanish, and is currently seeing new patients. Dr. Alonzo’s practice accepts Cigna, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Alonzo’s office at (626) 599-8323.

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

    • Residency: Kaiser Fndn Hosp-Los Angeles, Obstetrics And Gynecology

    • Medical School: University of Southern Ca Sch of Med, Los Angeles Ca

    Is Dr. Alonzo board certified in Obstetrician / Gynecologist (OBGYN)?

    Yes, Dr. Leopoldo Alonzo, MD is board certified by the American Board of Obstetrics and Gynecology

    What languages does Dr. Alonzo speak?

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

    • English

    • Spanish

    What conditions does Dr. Alonzo treat?

    As a Obstetrician / Gynecologist (OBGYN), Dr. Alonzo 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. Alonzo. 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.

    Also known as:

    • Epidermal Cyst
    • Skin Condition
    • Sebaceous Cyst
    • Keratin Cyst
    • Epidermoid Cyst

    ICD-10 Codes:

    • L720: Epidermal cyst

    Which procedures does Dr. Alonzo perform as a Obstetrician / Gynecologist (OBGYN)?

    As a Obstetrician / Gynecologist (OBGYN), procedures performed by an Dr. Leopoldo Alonzo may include:

    For detailed information, please contact Dr. Alonzo's office.

    Does Dr. Alonzo accept my insurance?

    Dr. Alonzo accepts most major insurance plans. Important: Please call our office at (626) 599-8323 before your appointment to verify that your specific plan and network are accepted.

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

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

    Top Insurances

    • BCBS Unspecified

    • Blue Shield of California

    • Cigna

    • CVS Health (formerly Aetna)

    • Directors Guild of America Employees

    • Elevance Health Inc. (formerly Anthem)

    • Express Scripts

    • Health Plans

    • Spectrum

    • UnitedHealthcare

    View All Insurances

    Where is Dr. Alonzo's office located?

    Dr. Leopoldo Alonzo's Primary Practice

    9961 Sierra Ave

    Fontana, CA 92335

    (626) 599-8323

    Get Directions

    Dr. Leopoldo Alonzo's Practice 2

    116 W Lime Ave

    Monrovia, CA 91016

    (626) 599-8323

    Get Directions

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

    Dr. Alonzo's National Provider Identifier (NPI) number is 1730306218.

    What common questions do patients ask about Dr. Alonzo?

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

    What is Dr. Leopoldo Alonzo's specialty?

    Dr. Alonzo is a Obstetrician / Gynecologist (OBGYN) near Fontana, CA. An obstetrician/gynecologist has specialized knowledge, skills, and expertise in the medical and surgical management of the female reproductive system and related disorders. This physician acts as a consultant to other healthcare providers while also serving as a primary care physician for women, addressing their unique health needs throughout various stages of life. Contact Dr. Alonzo to book an appointment today.

    Is this Dr. Leopoldo Alonzo affiliated with a ranked Castle Connolly Top Hospital?

    No, Alonzo is not affiliated with a Castle Connolly Top Hospital. Castle Connolly Top Hospitals 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

    Where can I learn more about Obstetrician / Gynecologist (OBGYN)?

    Explore Obstetrician / Gynecologist (OBGYN) with 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 Leopoldo Alonzo accepting new patients in Fontana, CA?

    Yes, Dr. Leopoldo Alonzo is accepting new patients at this time.

    Does Dr. Leopoldo Alonzo offer online booking?

    Please contact Dr. Alonzo's office at (626) 599-8323 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Leopoldo Alonzo?

    Please contact Dr. Alonzo's office at (626) 599-8323 for information regarding telehealth appointment availability or for scheduling assistance.

    Which board certifications does Dr. Leopoldo Alonzo have?

    Dr. Leopoldo Alonzo is certified by the American Board of Obstetrics and Gynecology.

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