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Dr. Katy Tsai, MD

San Francisco, CA

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Tsai, Internist in San Francisco, CA?

    Dr. Katy Tsai, MD is an Internist, who primarily practices in San Francisco, CA with 2 additional practice locations. She is board certified. Dr. Tsai is fluent in English, and is currently seeing new patients. Dr. Tsai’s practice accepts Medicaid, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Tsai’s office at (415) 353-9900.

    What languages does Dr. Tsai speak?

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

    • English

    What conditions does Dr. Tsai treat?

    As a Internist, Dr. Tsai 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. Tsai. 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:

    • Melanoma
    • Melanoma of the Left Leg or Hip
    • Melanoma of the Right Arm or Shoulder
    • Facial Melanoma
    • Melanoma of Left Arm or Shoulder
    • Melanoma of the Trunk
    • Malignant Melanoma
    • Skin Cancer (Melanoma)
    • Cutaneous Melanoma
    • Black Skin Cancer
    • Left Leg Melanoma
    • Left Hip Melanoma
    • Malignant Melanoma of Left Leg
    • Right Arm Melanoma
    • Right Shoulder Melanoma
    • Malignant Melanoma of Right Arm
    • Malignant Facial Melanoma
    • Skin Cancer of Face
    • Melanoma on Face
    • Left Arm Melanoma
    • Left Shoulder Melanoma
    • Skin Cancer of Left Arm
    • Left Upper Limb Melanoma
    • Malignant Melanoma of Body
    • Skin Cancer on Torso

    ICD-10 Codes:

    • C439: Malignant melanoma of skin, unspecified
    • C4372: Malignant melanoma of left lower limb, including hip
    • C4361: Malignant melanoma of right upper limb, including shoulder
    • C4339: Malignant melanoma of other parts of face
    • C4362: Malignant melanoma of left upper limb, including shoulder
    • C4359: Malignant melanoma of other part of trunk

    Also known as:

    • Cancer in Lymph Nodes
    • Cancer Spread to Unknown Site
    • Secondary Brain Cancer
    • Cancer
    • Brain Tumor
    • Lymph Node Metastasis
    • Metastatic Lymph Node Cancer
    • Secondary Lymphoma
    • Metastatic Cancer of Unknown Primary
    • Secondary Cancer, Unspecified Location
    • Cancer of Unknown Origin
    • Metastatic brain cancer
    • Brain metastases
    • Cancer spread to brain

    ICD-10 Codes:

    • C779: Secondary and unspecified malignant neoplasm of lymph node, unspecified
    • C799: Secondary malignant neoplasm of unspecified site
    • C7931: Secondary malignant neoplasm of brain

    Also known as:

    • Other Preventive Measures Visit
    • Other prophylactic care
    • Specific preventive treatments
    • Additional preventive health measures

    ICD-10 Codes:

    • Z2989: Encounter for other specified prophylactic measures

    Also known as:

    • Vulvar Cancer
    • Cancer of the vulva
    • Vulvar carcinoma
    • External female genital cancer

    ICD-10 Codes:

    • C519: Malignant neoplasm of vulva, unspecified

    Also known as:

    • Non-Infectious Gastroenteritis and Colitis
    • Digestive Disease
    • Inflammation of Stomach and Intestines
    • Non-Bacterial Colitis
    • Gut Inflammation

    ICD-10 Codes:

    • K529: Noninfective gastroenteritis and colitis, unspecified

    Also known as:

    • History of Other Medical Treatment
    • Past Medical Procedures
    • Previous Medical Care
    • History of Past Treatments

    ICD-10 Codes:

    • Z9289: Personal history of other medical treatment

    Also known as:

    • Adverse Reaction to Immune System Drugs
    • Immune Drug Side Effect
    • Immune System Medication Reaction
    • Adverse Immune Checkpoint Inhibitor Effect
    • Immunostimulant Drug Reaction

    ICD-10 Codes:

    • T45AX5D: Adverse effect of immune checkpoint inhibitors and immunostimulant drugs, subsequent encounter

    Also known as:

    • Other Specific Abnormal Blood Chemistry Results
    • Blood
    • Specified Blood Chemistry Imbalance
    • Unusual Blood Chemistry Findings
    • Specific Blood Panel Abnormalities

    ICD-10 Codes:

    • R7989: Other specified abnormal findings of blood chemistry

    Also known as:

    • Hypothyroidism
    • Congenital hypothyroidism
    • Hypothyroidism (Underactive Thyroid)
    • Underactive Thyroid
    • Low Thyroid Function

    ICD-10 Codes:

    • E039: Hypothyroidism, unspecified

    Also known as:

    • Lung Cancer Spread
    • Lung Cancer
    • Metastatic Lung Cancer
    • Secondary Lung Tumor
    • Lung Metastasis

    ICD-10 Codes:

    • C7800: Secondary malignant neoplasm of unspecified lung

    Also known as:

    • Kaposi Sarcoma
    • KS
    • Kaposi's Cancer', 'Kaposi's Tumor

    ICD-10 Codes:

    • C469: Kaposi's sarcoma, unspecified

    Also known as:

    • Inflammatory Liver Disease
    • Hepatitis
    • Liver inflammation

    ICD-10 Codes:

    • K759: Inflammatory liver disease, unspecified

    Also known as:

    • Anal Cancer
    • Anal Cancer Treatment (PDQ)
    • Cancer of the anal canal
    • Malignant neoplasm of anal canal
    • Anorectal cancer

    ICD-10 Codes:

    • C211: Malignant neoplasm of anal canal

    Which procedures does Dr. Tsai perform as a Internist?

    As a Internist, procedures performed by an Dr. Katy Tsai may include:

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

    Does Dr. Tsai accept my insurance?

    Dr. Tsai accepts most major insurance plans. Important: Please call our office at (415) 353-9900 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Tsai accept in San Francisco, CA?

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

    Top Insurances

    • Alameda Alliance

    • All Other Third Party

    • Centene

    • Central California Alliance for Health

    • Health Plan of San Joaquin

    • Hill Physicians Medical Group

    • Imperial Health Plan (CA)

    • Other Health Care Provider

    • Sutter Health

    • UnitedHealthcare

    View All Insurances

    Where is Dr. Tsai's office located?

    Dr. Katy Tsai's Primary Practice

    400 Parnassus Ave

    San Francisco, CA 94143

    (415) 353-9900

    Get Directions

    Dr. Katy Tsai's Practice 2

    8 Koret Way

    San Francisco, CA 94143

    Get Directions

    Dr. Katy Tsai's Practice 3

    2380 Sutter St

    San Francisco, CA 94115

    Get Directions

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

    Dr. Tsai's National Provider Identifier (NPI) number is 1417275827.

    What common questions do patients ask about Dr. Tsai?

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

    What is Dr. Katy Tsai's specialty?

    Dr. Tsai is a Internist near San Francisco, 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. Tsai to book an appointment today.

    Is this Dr. Katy Tsai affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Tsai is affiliated with Ucsf Medical Center At Parnassus 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 Katy Tsai accepting new patients in San Francisco, CA?

    Yes, Dr. Katy Tsai is accepting new patients at this time.

    Does Dr. Katy Tsai offer online booking?

    Please contact Dr. Tsai's office at (415) 353-9900 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Katy Tsai?

    Please contact Dr. Tsai's office at (415) 353-9900 for information regarding telehealth appointment availability or for scheduling assistance.

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