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Dr. Garrett Nash, MD

Dr. Garrett Nash, MD

Colon & Rectal Surgeon (Proctologist)

New York, NY

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Nash, Colon & Rectal Surgeon (Proctologist) in New York, NY?

    Dr. Garrett Nash, MD is a Colon & Rectal Surgeon (Proctologist), who primarily practices in New York, NY. He is board certified. Dr. Nash graduated from Columbia Univ College of Physicians And Surgeons and completed his residency at University of Massachusetts Medical Center, Worcester. Dr. Nash is fluent in English, and is currently seeing new patients. Dr. Nash’s practice accepts Kaiser Permanente, Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Nash’s office at (212) 639-8668.
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    Castle Connolly Top Doctor

    Castle Connolly Top Doctors are doctor-nominated and selected by a physician-led research team.

    What are Areas of Expertise for Dr. Nash?

    Dr. Garrett Nash, MD is a highly-rated, board-certified Colon & Rectal Surgeon (Proctologist) known for expertly diagnosing, treating, and managing a wide array of related conditions and procedures. Utilizing the latest medical advancements and evidence-based practices, Dr. Nash empowers patients to confidently navigate their health journey, specializing in Anal Cancer, Appendix Cancer, Colon & Rectal Cancer, Rectal Cancer/Sphincter Preservation, Robotic Surgery, Robotic Surgery, and comprehensive wellness support. Serving the New York, NY community, Dr. Nash is dedicated to enhancing lives through expert, patient-centered care.

    Where did Dr. Nash go to medical school and complete their residency?

    • Residency: University of Massachusetts Medical Center, Worcester

    • Medical School: Columbia Univ College of Physicians And Surgeons

    Is Dr. Nash board certified as a Colon & Rectal Surgeon (Proctologist)?

    Yes, Dr. Garrett Nash, MD is board certified by the American Board of Colon & Rectal Surgery , American Board of Surgery

    What languages does Dr. Nash speak?

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

    • English

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

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

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

    ICD-10 Codes:

    • C181: Malignant neoplasm of appendix
    • C20: Malignant neoplasm of rectum
    • C189: Malignant neoplasm of colon, unspecified

    Also known as:

    • Secondary Peritoneal Cancer
    • Cancer
    • Peritoneal Disorder
    • Metastatic Peritoneal Cancer
    • Cancer Spread to Peritoneum
    • Peritoneal Carcinomatosis

    ICD-10 Codes:

    • C786: Secondary malignant neoplasm of retroperitoneum and peritoneum

    Also known as:

    • Growth of Unknown Type in the Appendix
    • Colonic Disease
    • Indeterminate appendix mass
    • Appendix tumor of unknown nature
    • Appendix neoplasm of uncertain behavior

    ICD-10 Codes:

    • D373: Neoplasm of uncertain behavior of appendix

    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:

    • Cancer Follow-up Exam
    • Cancer
    • Post-cancer treatment checkup
    • Malignancy surveillance
    • Oncology follow-up

    ICD-10 Codes:

    • Z08: Encounter for follow-up examination after completed treatment for malignant neoplasm

    Also known as:

    • Pre-Procedure Heart Examination
    • Pre-Surgery Cardiac Checkup
    • Heart Health Assessment (Before Procedure)
    • Cardiovascular Clearance Exam

    ICD-10 Codes:

    • Z01810: Encounter for preprocedural cardiovascular examination

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

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

    • Flexible Sigmoidoscopy
    • Colorectal Cancer Screening Tests
    • Sigmoidoscopy
    • Lower colon exam
    • Flexible colon scope
    • Rectum and lower colon check

    CPT Codes:

    • 45330: Sigmoidoscopy, flexible; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)

    Also known as:

    • Laparoscopic Biopsy
    • Minimally Invasive Biopsy
    • Peritoneal Biopsy
    • Abdominal Biopsy via Laparoscopy

    CPT Codes:

    • 49321: Laparoscopy, surgical; with biopsy (single or multiple)

    Does Dr. Nash accept my insurance?

    Dr. Nash accepts most major insurance plans. Important: Please call our office at (212) 639-8668 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Nash accept in New York, NY?

    Dr. Nash in New York, NY accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • Cigna Group

    • Elevance Health Inc. (formerly Anthem)

    • Kaiser Permanente

    • Medicare

    • UnitedHealth Group

    View All Insurances

    Where is Dr. Nash's office located?

    Memorial Sloan Kettering Cancer Center

    1275 York Avenue

    New York, NY 10065

    (212) 639-8668

    Get Directions | View Website

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

    Dr. Nash's National Provider Identifier (NPI) number is 1154581213.

    What common questions do patients ask about Dr. Nash?

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

    What is Dr. Garrett Nash's specialty?

    Dr. Nash is a Colon & Rectal Surgeon (Proctologist) near New York, NY.

    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 Dr. Garrett Nash affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Nash is affiliated with Memorial Sloan Kettering Cancer Center 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

    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 Dr. Garrett Nash accepting new patients in New York, NY?

    Yes, Dr. Garrett Nash is accepting new patients at this time.

    Does Dr. Garrett Nash offer online booking?

    Please contact Dr. Nash's office at (212) 639-8668 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Dr. Garrett Nash?

    Please contact Dr. Nash's office at (212) 639-8668 to schedule an appointment.

    Where is Dr. Nash's office located?

    Dr. Nash's office is located in New York, NY.

    Which board certifications does Dr. Garrett Nash have?

    Dr. Garrett Nash is certified by the American Board of Colon & Rectal Surgery and American Board of Surgery.