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Dr. William Johnston, MD

New Orleans, LA

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Johnston, Colon & Rectal Surgeon (Proctologist) in New Orleans, LA?

    Dr. William Johnston, MD is a Colon & Rectal Surgeon (Proctologist), who primarily practices in New Orleans, LA with 1 additional practice location. He is board certified. Dr. Johnston is fluent in English and Spanish, and is currently seeing new patients. Dr. Johnston’s practice accepts Cigna, Medicare, UnitedHealthcare, Aetna and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Johnston’s office at (504) 842-4060.

    What are Areas of Expertise for Dr. Johnston?

    Dr. William Johnston, MD is a highly-rated, board-certified Colon & Rectal Surgeon (Proctologist) known for expertly diagnosing, treating, and managing a wide array of related conditions or procedures. Utilizing the latest medical advancements and evidence-based practices, Dr. Johnston empowers patients to confidently navigate their health journey, specializing in Colon & Rectal Cancer, Diverticulitis, Inflammatory Bowel Disease, or comprehensive wellness support. Serving the New Orleans/LA community, Dr. Johnston is dedicated to enhancing lives through expert, patient-centered care.

    What languages does Dr. Johnston speak?

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

    • English

    • Spanish

    What conditions does Dr. Johnston treat?

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

    • Colon Cancer Screening
    • Health Screening
    • Colorectal Cancer Screening (PDQ®)
    • Screening Tests to Detect Colorectal Cancer and Polyps
    • Tests to Detect Colorectal Cancer and Polyps
    • Colorectal Cancer Screening
    • Colonoscopy Screening
    • Bowel Cancer Screening

    ICD-10 Codes:

    • Z1211: Encounter for screening for malignant neoplasm of colon

    Also known as:

    • Colorectal Cancer
    • Rectal cancer
    • Colon cancer
    • Bowel cancer
    • Malignant neoplasm of rectum
    • Malignant neoplasm of sigmoid colon
    • Colon Cancer
    • Ascending Colon Cancer
    • Bowel Cancer
    • Colorectal Carcinoma

    ICD-10 Codes:

    • C20: Malignant neoplasm of rectum
    • C187: Malignant neoplasm of sigmoid colon
    • C182: Malignant neoplasm of ascending colon

    Also known as:

    • History of rectal or anal cancer
    • History of large intestine cancer
    • Colorectal Cancer
    • Past rectal cancer
    • Anal cancer survivor
    • Previous rectosigmoid malignancy
    • Past colon cancer
    • Colorectal cancer survivor
    • Previous large bowel malignancy

    ICD-10 Codes:

    • Z85048: Personal history of other malignant neoplasm of rectum, rectosigmoid junction, and anus
    • Z85038: Personal history of other malignant neoplasm of large intestine

    Also known as:

    • First Degree Hemorrhoids
    • Hemorrhoidal Skin Tags
    • Second Degree Hemorrhoids
    • Hemorrhoids
    • Internal hemorrhoids
    • Grade 1 hemorrhoids
    • Mild hemorrhoids
    • Anal skin tags
    • Perianal skin tags
    • Leftover hemorrhoid skin
    • Internal hemorrhoids that prolapse
    • Grade 2 hemorrhoids
    • Moderate hemorrhoids

    ICD-10 Codes:

    • K640: First degree hemorrhoids
    • K644: Residual hemorrhoidal skin tags
    • K641: Second degree hemorrhoids

    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:

    • Cancer Surgery Aftercare
    • After Surgery
    • Cancer
    • Post-cancer surgery care
    • Oncology aftercare
    • Cancer recovery follow-up

    ICD-10 Codes:

    • Z483: Aftercare following surgery for neoplasm

    Also known as:

    • Colon Polyps
    • Colonic Polyps
    • Colorectal polyps
    • Bowel polyps
    • Intestinal polyps

    ICD-10 Codes:

    • K635: Polyp of colon

    Also known as:

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

    ICD-10 Codes:

    • K603: Anal fistula

    Also known as:

    • Chronic Idiopathic Constipation
    • Constipation
    • Functional Constipation
    • Unexplained Chronic Constipation
    • Long-Term Constipation

    ICD-10 Codes:

    • K5904: Chronic idiopathic constipation

    Also known as:

    • Digestive System Surgery Aftercare
    • After Surgery
    • Post-gastrointestinal surgery care
    • Stomach surgery aftercare
    • Bowel surgery recovery

    ICD-10 Codes:

    • Z48815: Encounter for surgical aftercare following surgery on the digestive system

    Also known as:

    • Pilonidal Cyst
    • Tailbone Disorder
    • Sacrococcygeal cyst
    • Pilonidal sinus
    • Tailbone cyst

    ICD-10 Codes:

    • L0591: Pilonidal cyst without abscess

    Also known as:

    • Colon Polyps
    • Colonic Polyps
    • Colorectal Polyps
    • Intestinal Polyps
    • Bowel Polyps

    ICD-10 Codes:

    • Z86010: Personal history of colon polyps

    Also known as:

    • Rectal Bleeding
    • Gastrointestinal Bleeding
    • Gastrointestinal (GI) Bleeding
    • Anal Bleeding
    • Blood in Stool
    • Lower GI Bleed

    ICD-10 Codes:

    • K625: Hemorrhage of anus and rectum

    Also known as:

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

    ICD-10 Codes:

    • K602: Anal fissure, unspecified

    Also known as:

    • Other Anal and Rectal Condition
    • Anal Disorder
    • Rectal Disorder
    • Proctitis
    • Anal Disorders
    • Rectal Disorders

    ICD-10 Codes:

    • K6289: Other specified diseases of anus and rectum

    Which procedures does Dr. Johnston perform as a Colon & Rectal Surgeon (Proctologist)?

    As a Colon & Rectal Surgeon (Proctologist), procedures performed by a Dr. William Johnston may include:

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

    Does Dr. Johnston accept my insurance?

    Dr. Johnston accepts most major insurance plans. Important: Please call our office at (504) 842-4060 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Johnston accept in New Orleans, LA?

    Dr. Johnston in New Orleans, LA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • BCBS Unspecified

    • Blue Cross and Blue Shield of Louisiana

    • CVS Health (formerly Aetna)

    • Elevance Health Inc. (formerly Anthem)

    • Federal Employee Program

    • Humana

    • Medicare

    • Ochsner Health System

    • State of Louisiana

    • UnitedHealthcare

    View All Insurances

    Where is Dr. Johnston's office located?

    Dr. William Johnston's Primary Practice

    1514 Jefferson Hwy

    New Orleans, LA 70121

    (504) 842-4060

    Get Directions

    Dr. William Johnston's Practice 2

    1990 Industrial Blvd

    Houma, LA 70363

    Get Directions

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

    Dr. Johnston's National Provider Identifier (NPI) number is 1598908253.

    What common questions do patients ask about Dr. Johnston?

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

    What is Dr. William Johnston's specialty?

    Dr. Johnston is a Colon & Rectal Surgeon (Proctologist) near New Orleans, LA. 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. Contact Dr. Johnston to book an appointment today.

    Is this Dr. William Johnston affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Johnston is affiliated with Ochsner Medical Center - New Orleans 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 Colon & Rectal Surgeon (Proctologist)?

    Explore Colon & Rectal Surgeon (Proctologist) 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 William Johnston accepting new patients in New Orleans, LA?

    Yes, Dr. William Johnston is accepting new patients at this time.

    Does Dr. William Johnston offer online booking?

    Please contact Dr. Johnston's office at (504) 842-4060 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with William Johnston?

    Please contact Dr. Johnston's office at (504) 842-4060 for information regarding telehealth appointment availability or for scheduling assistance.

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