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Dr. Ngoc Patrick Nguyen, MD

Fontana, CA

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Nguyen, Colon & Rectal Surgeon (Proctologist) in Fontana, CA?

    Dr. Ngoc Patrick Nguyen, MD is a Colon & Rectal Surgeon (Proctologist), who primarily practices in Fontana, CA. Dr. Nguyen is fluent in English, and is currently seeing new patients. Dr. Nguyen’s practice accepts Kaiser Permanente, Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Nguyen’s office at (909) 427-3909.

    What languages does Dr. Nguyen speak?

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

    • English

    What conditions does a Colon & Rectal Surgeon (Proctologist) like Dr. Nguyen typically treat?

    As a Colon & Rectal Surgeon (Proctologist), Dr. Nguyen 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. Nguyen. 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.

    Also known as:

    • Hemorrhoids
    • Hemorrhoidal Skin Tags
    • Piles
    • Swollen Veins in Anus
    • Anal Lumps
    • Anal skin tags
    • Perianal skin tags
    • Leftover hemorrhoid skin

    ICD-10 Codes:

    • K649: Unspecified hemorrhoids
    • K644: Residual hemorrhoidal skin tags

    Also known as:

    • Colorectal Cancer
    • Rectal cancer
    • Colon cancer
    • Bowel cancer
    • Malignant neoplasm of rectum

    ICD-10 Codes:

    • C20: Malignant neoplasm of rectum

    Also known as:

    • Acute Appendicitis
    • Appendicitis
    • Inflamed Appendix
    • Sudden Appendix Inflammation
    • Appendicitis Attack

    ICD-10 Codes:

    • K3580: Unspecified acute appendicitis

    Also known as:

    • Anal Fissure
    • Anal Disorder
    • Rectal Tear
    • Fissure in Anus
    • Perianal Fissure

    ICD-10 Codes:

    • K602: Anal fissure, unspecified

    Also known as:

    • Intestine Diverticulitis
    • Diverticulosis and Diverticulitis
    • Inflamed Bowel Diverticula
    • Bowel Diverticular Inflammation

    ICD-10 Codes:

    • K5792: Diverticulitis of intestine, part unspecified, without perforation or abscess without bleeding

    Also known as:

    • Rectal Prolapse
    • Pelvic Floor Disorder
    • Rectal Disorder
    • Protruding Rectum
    • Bowel Prolapse
    • Rectal Eversion

    ICD-10 Codes:

    • K623: Rectal prolapse

    Also known as:

    • Anal Fistula
    • Anal Disorder
    • Fistulas
    • Perianal Fistula
    • Fistula-in-Ano
    • Abnormal Anal Tract

    ICD-10 Codes:

    • K603: Anal fistula

    What procedures does a Colon & Rectal Surgeon (Proctologist) like Dr. Nguyen typically perform?

    As a Colon & Rectal Surgeon (Proctologist), Dr. Nguyen performs a variety of medical procedures. This procedure information is derived from anonymized insurance claims and highlights the medical procedures most commonly performed by Dr. Nguyen. 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.

    Also known as:

    • Hemorrhoid Injection (Sclerotherapy)
    • Sclerosing Injection for Hemorrhoids
    • Hemorrhoid Shrinking Injection
    • Internal Hemorrhoid Treatment

    CPT Codes:

    • 46500: Injection of sclerosing solution, hemorrhoids

    Does Dr. Nguyen accept my insurance?

    Dr. Nguyen accepts most major insurance plans. Important: Please call our office at (909) 427-3909 before your appointment to verify that your specific plan and network are accepted.

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

    Dr. Nguyen in Fontana, 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

    • AlphaCare

    • Centene Corporation

    • Clever Care Health Plan

    • Elevance Health Inc. (formerly Anthem)

    • Inland Faculty Medical Group, Inc

    • Kaiser Permanente

    • Medicare

    • UnitedHealth Group

    • Unknown

    View All Insurances

    Where is Dr. Nguyen's office located?

    Mob #3 Third Floor

    9961 Sierra Ave

    Fontana, CA 92335

    (909) 427-3909

    Get Directions

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

    Dr. Nguyen's National Provider Identifier (NPI) number is 1417153552.

    What common questions do patients ask about Dr. Nguyen?

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

    What is Dr. Ngoc Patrick Nguyen's specialty?

    Dr. Nguyen is a Colon & Rectal Surgeon (Proctologist) near Fontana, CA.

    What does a Colon & Rectal Surgeon (Proctologist) do?

    A colon and rectal surgeon possesses the expertise to diagnose and treat a variety of ailments affecting the intestinal tract, including the colon, rectum, anal canal, and perianal area, through both medical and surgical interventions. Furthermore, this professional also engages with other organs and tissues, including the liver, urinary system, and female reproductive system, that are relevant to primary intestinal disorders.

    Is this Dr. Ngoc Patrick Nguyen affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Nguyen is affiliated with Kaiser Permanente Fontana Medical Center, Kaiser Permanente Riverside 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 a Colon & Rectal Surgeon (Proctologist)?: Guides for symptoms, conditions, and treatments

    Understand your symptoms and know when it’s time to see a Colon & Rectal Surgeon (Proctologist). 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 Ngoc Patrick Nguyen accepting new patients in Fontana, CA?

    Yes, Dr. Ngoc Patrick Nguyen is accepting new patients at this time.

    Does Dr. Ngoc Patrick Nguyen offer online booking?

    Please contact Dr. Nguyen's office at (909) 427-3909 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Ngoc Patrick Nguyen?

    Please contact Dr. Nguyen's office at (909) 427-3909 for information regarding telehealth appointment availability or for scheduling assistance.

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