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Dr. Harish Kumar Rengarajan, MD

Oakland, CA

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Rengarajan, Internist in Oakland, CA?

    Dr. Harish Kumar Rengarajan, MD is an Internist, who primarily practices in Oakland, CA with 2 additional practice locations. He is board certified. Dr. Rengarajan is fluent in English, and is currently seeing new patients. Dr. Rengarajan’s practice accepts Medicaid, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Rengarajan’s office at (631) 476-2801.

    What languages does Dr. Rengarajan speak?

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

    • English

    Which conditions does Dr. Rengarajan treat as a Internist?

    As a Internist, conditions treated by an Dr. Harish Kumar Rengarajan may include:

    Please contact Dr. Rengarajan's office for more information or to schedule a consultation.

    Which procedures does Dr. Rengarajan perform as a Internist?

    As a Internist, procedures performed by an Dr. Harish Kumar Rengarajan may include:

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

    Does Dr. Rengarajan accept my insurance?

    Dr. Rengarajan accepts most major insurance plans. Important: Please call our office at (631) 476-2801 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Rengarajan accept in Oakland, CA?

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

    Top Insurances

    • Alameda Alliance

    • Alignment Health Plan

    • All Other Third Party

    • Central California Alliance for Health

    • CVS Health (formerly Aetna)

    • Imperial Health Plan (CA)

    • Medicare

    • Other Health Care Provider

    • Sutter Health

    • UnitedHealthcare

    View All Insurances

    Where is Dr. Rengarajan's office located?

    Dr. Harish Kumar Rengarajan's Primary Practice

    350 Hawthorne Ave Rm 2346

    Oakland, CA 94609

    (631) 476-2801

    Get Directions

    Dr. Harish Kumar Rengarajan's Practice 2

    3200 Kearney St

    Fremont, CA 94538

    Get Directions

    Dr. Harish Kumar Rengarajan's Practice 3

    759 Chestnut St

    Springfield, MA 01107

    Get Directions

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

    Dr. Rengarajan's National Provider Identifier (NPI) number is 1740592757.

    What common questions do patients ask about Dr. Rengarajan?

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

    What is Dr. Harish Kumar Rengarajan's specialty?

    Dr. Rengarajan is a Internist near Oakland, CA.

    A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

    Contact Dr. Rengarajan to book an appointment today.

    Is this Dr. Harish Kumar Rengarajan affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Rengarajan is affiliated with Alta Bates Summit Medical Center - Summit Campus 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

    Where can I learn more about Internist?

    Explore Internist 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 Harish Kumar Rengarajan accepting new patients in Oakland, CA?

    Yes, Dr. Harish Kumar Rengarajan is accepting new patients at this time.

    Does Dr. Harish Kumar Rengarajan offer online booking?

    Please contact Dr. Rengarajan's office at (631) 476-2801 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Harish Kumar Rengarajan?

    Please contact Dr. Rengarajan's office at (631) 476-2801 for information regarding telehealth appointment availability or for scheduling assistance.

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