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Dr. Stephen Ma, MD

Stanford, CA

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Ma, Internist in Stanford, CA?

    Dr. Stephen Ma, MD is an Internist, who primarily practices in Stanford, CA with 2 additional practice locations. He is board certified. Dr. Ma is fluent in English, and is currently seeing new patients. Dr. Ma’s practice accepts Kaiser Permanente, Medicaid, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Ma’s office at (650) 723-4000.

    What languages does Dr. Ma speak?

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

    • English

    What conditions does Dr. Ma treat?

    As a Internist, Dr. Ma 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. Ma. 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:

    • Fainting
    • Syncope
    • Passing out
    • Collapse

    ICD-10 Codes:

    • R55: Syncope and collapse

    Also known as:

    • Changes in Mental State
    • Mental Disorder
    • Confusion
    • Disorientation
    • Changes in awareness

    ICD-10 Codes:

    • R4182: Altered mental status, unspecified

    Also known as:

    • Sepsis
    • Blood Poisoning
    • Septicemia
    • Systemic Bacterial Infection

    ICD-10 Codes:

    • A419: Sepsis, unspecified organism

    Also known as:

    • End-Stage Kidney Disease
    • Kidney Failure
    • Chronic Kidney Disease (CKD)
    • Helping Your Child Adapt to Life with Chronic Kidney Disease
    • ESRD
    • End-Stage Renal Failure

    ICD-10 Codes:

    • N186: End stage renal disease

    Also known as:

    • Pneumonia
    • Lung Infection
    • Chest Infection
    • Pneumonitis

    ICD-10 Codes:

    • J189: Pneumonia, unspecified organism

    Also known as:

    • Acute Kidney Failure
    • Kidney Failure
    • Acute Renal Failure
    • Sudden Kidney Failure

    ICD-10 Codes:

    • N179: Acute kidney failure, unspecified

    Also known as:

    • COVID-19
    • COVID-19 (Coronavirus Disease 2019)
    • Coronavirus Disease 2019
    • SARS-CoV-2 Infection
    • Novel Coronavirus

    ICD-10 Codes:

    • U071: COVID-19

    Which procedures does Dr. Ma perform as a Internist?

    As a Internist, procedures performed by an Dr. Stephen Ma may include:

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

    Does Dr. Ma accept my insurance?

    Dr. Ma accepts most major insurance plans. Important: Please call our office at (650) 723-4000 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Ma accept in Stanford, CA?

    Dr. Ma in Stanford, 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

    • Central California Alliance for Health

    • Crown Cork and Seal Company

    • CVS Health (formerly Aetna)

    • Medicaid

    • Medicare

    • Santa Clara Family Health Plan

    • State of California

    • State of Tennessee

    • Valley Health Plan

    View All Insurances

    Where is Dr. Ma's office located?

    Dr. Stephen Ma's Primary Practice

    300 Pasteur Dr

    Stanford, CA 94305

    (650) 723-4000

    Get Directions

    Dr. Stephen Ma's Practice 2

    453 Quarry Rd # 5660

    Palo Alto, CA 94304

    Get Directions

    Dr. Stephen Ma's Practice 3

    453 Quarry Rd # MC5660

    Palo Alto, CA 94304

    Get Directions

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

    Dr. Ma's National Provider Identifier (NPI) number is 1508329442.

    What common questions do patients ask about Dr. Ma?

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

    What is Dr. Stephen Ma's specialty?

    Dr. Ma is a Internist near Stanford, 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. Ma to book an appointment today.

    Is this Dr. Stephen Ma affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Ma is affiliated with Stanford Health Care - Stanford Hospital, Stanford Health Care - ValleyCare 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

    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 Stephen Ma accepting new patients in Stanford, CA?

    Yes, Dr. Stephen Ma is accepting new patients at this time.

    Does Dr. Stephen Ma offer online booking?

    Please contact Dr. Ma's office at (650) 723-4000 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Stephen Ma?

    Please contact Dr. Ma's office at (650) 723-4000 for information regarding telehealth appointment availability or for scheduling assistance.

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