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Dr. Robert Lazar, MD

Commack, NY

38 Years of Experience

Accepting patients

    Who is Dr. Lazar, Gastroenterologist in Commack, NY?

    Dr. Robert Lazar, MD is a Gastroenterologist, who primarily practices in Commack, NY with 2 additional practice locations. He has been practicing for over 38 years and is board certified by the American Board of Internal Medicine. Dr. Lazar completed his residency at U Hosp-Suny Hlth S C-Bklyn, Internal Medicine; U Hosp-Suny Hlth S C-Bklyn, Anesthesiology. Dr. Lazar is fluent in English and Spanish, and is currently seeing new patients. Dr. Lazar’s practice accepts Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Lazar’s office at (631) 543-8660.

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

    • Residency: U Hosp-Suny Hlth S C-Bklyn, Internal Medicine; U Hosp-Suny Hlth S C-Bklyn, Anesthesiology

    Is Dr. Lazar board certified in Gastroenterologist?

    Yes, Dr. Robert Lazar, MD is board certified by the American Board of Internal Medicine

    What languages does Dr. Lazar speak?

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

    • English

    • Spanish

    What conditions does Dr. Lazar treat?

    As a Gastroenterologist, Dr. Lazar 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. Lazar. 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:

    • GERD with Esophagitis
    • Acid Reflux
    • Eosinophilic Esophagitis
    • GERD
    • Acid Reflux (GER & GERD) in Adults
    • Acid Reflux (GER & GERD) in Children
    • Acid Reflux (GER & GERD) in Infants
    • Reflux Esophagitis
    • Acid Reflux Esophagus Inflammation
    • Heartburn with Esophagus Damage
    • Gastroesophageal Reflux
    • Heartburn
    • Indigestion

    ICD-10 Codes:

    • K2100: Gastro-esophageal reflux disease with esophagitis, without bleeding
    • K219: Gastro-esophageal reflux disease without esophagitis

    Also known as:

    • Barrett's Esophagus
    • Esophagus Disorder
    • Barrett’s Esophagus
    • Barrett's condition
    • Esophageal metaplasia

    ICD-10 Codes:

    • K2270: Barrett's esophagus without dysplasia

    Also known as:

    • Second Degree Hemorrhoids
    • Hemorrhoids
    • Internal hemorrhoids that prolapse
    • Grade 2 hemorrhoids
    • Moderate hemorrhoids
    • Piles
    • Anal veins
    • Swollen rectal veins
    • Swollen Veins in Anus
    • Anal Lumps

    ICD-10 Codes:

    • K641: Second degree hemorrhoids
    • K648: Other hemorrhoids
    • K649: Unspecified hemorrhoids

    Also known as:

    • Stomach Inflammation
    • Stomach Disorder
    • Gastritis & Gastropathy
    • Gastritis
    • Inflamed stomach lining
    • Stomach lining inflammation

    ICD-10 Codes:

    • K2970: Gastritis, unspecified, without bleeding

    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:

    • Heartburn
    • Acid Reflux
    • Indigestion
    • GERD Symptoms

    ICD-10 Codes:

    • R12: Heartburn

    Also known as:

    • Diaphragmatic Hernia
    • Hernia
    • Hiatal Hernia
    • Hernia of the Diaphragm

    ICD-10 Codes:

    • K449: Diaphragmatic hernia without obstruction or gangrene

    Also known as:

    • Large Intestine Diverticulosis
    • Diverticulosis and Diverticulitis
    • Diverticular Disease
    • Colon Diverticula
    • Pockets in the Colon

    ICD-10 Codes:

    • K5730: Diverticulosis of large intestine without perforation or abscess without bleeding

    Also known as:

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

    ICD-10 Codes:

    • K635: Polyp of colon

    Also known as:

    • Upper GI Screening
    • Health Screening
    • Upper Gastrointestinal Screening
    • Esophagus and Stomach Check
    • Upper Digestive Screening

    ICD-10 Codes:

    • Z13810: Encounter for screening for upper gastrointestinal disorder

    Also known as:

    • Family History of Digestive Organ Cancer
    • Cancer
    • Family History
    • Genetic risk for gastrointestinal cancer
    • Family history of GI cancer
    • Hereditary digestive cancer

    ICD-10 Codes:

    • Z800: Family history of malignant neoplasm of digestive organs

    Also known as:

    • Other Non-Infectious Stomach and Colon Inflammation
    • Digestive Disease
    • Non-Infectious Colitis
    • Non-Infectious Enteritis
    • Digestive Tract Inflammation

    ICD-10 Codes:

    • K5289: Other specified noninfective gastroenteritis and colitis

    Does Dr. Lazar accept my insurance?

    Dr. Lazar accepts most major insurance plans. Important: Please call our office at (631) 543-8660 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Lazar accept in Commack, NY?

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

    Top Insurances

    • All Other Third Party

    • CVS Health (formerly Aetna)

    • EmblemHealth

    • Express Scripts

    • Medicare

    • Molina

    • Oscar Health Insurance Co

    • Other Health Care Provider

    • Trustmark Insurance Company

    • UnitedHealthcare

    View All Insurances

    Where is Dr. Lazar's office located?

    Dr. Robert Lazar's Primary Practice

    1092 Jericho Tpke Ste 2S

    Commack, NY 11725

    (631) 543-8660

    Get Directions

    Dr. Robert Lazar's Practice 2

    989 W Jericho Tpke

    Smithtown, NY 11787

    Get Directions

    Dr. Robert Lazar's Practice 3

    48 Route 25A Ste 107

    Smithtown, NY 11787

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

    Dr. Lazar's National Provider Identifier (NPI) number is 1730164179.

    What common questions do patients ask about Dr. Lazar?

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

    What is Dr. Robert Lazar's specialty?

    Dr. Lazar is a Gastroenterologist near Commack, NY. An internist focused on diagnosing and treating disorders of the digestive system, encompassing the stomach, intestines, liver, and gallbladder. This specialist manages conditions like abdominal pain, ulcers, diarrhea, cancer, and jaundice, and performs intricate diagnostic and therapeutic procedures using endoscopes to examine internal organs. Contact Dr. Lazar to book an appointment today.

    Is this Dr. Robert Lazar affiliated with a ranked Castle Connolly Top Hospital?

    No, Lazar is not affiliated with a Castle Connolly Top Hospital. Castle Connolly Top Hospitals 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 Gastroenterologist?

    Explore Gastroenterologist 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 Robert Lazar accepting new patients in Commack, NY?

    Yes, Dr. Robert Lazar is accepting new patients at this time.

    Does Dr. Robert Lazar offer online booking?

    Please contact Dr. Lazar's office at (631) 543-8660 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Robert Lazar?

    Please contact Dr. Lazar's office at (631) 543-8660 for information regarding telehealth appointment availability or for scheduling assistance.

    Which board certifications does Dr. Robert Lazar have?

    Dr. Robert Lazar is certified by the American Board of Internal Medicine.

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