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Dr. Richard Feldstein, MD

Dr. Richard Feldstein, MD

Smithtown, NY

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Feldstein, Gastroenterologist in Smithtown, NY?

    Dr. Richard Feldstein, MD is a Gastroenterologist, who primarily practices in Smithtown, NY with 2 additional practice locations. He is board certified. Dr. Feldstein graduated from St. George's University School of Medicine and completed his residency at Icahn School of Medicine at Mount Sinai/St Luke's-Roosevelt Hospital Center Program. Dr. Feldstein is fluent in English and French, and is currently seeing new patients. Dr. Feldstein’s practice accepts Cigna, Medicaid, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Feldstein’s office at (631) 862-3680.

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

    • Residency: Icahn School of Medicine at Mount Sinai/St Luke's-Roosevelt Hospital Center Program

    • Medical School: St. George's University School of Medicine

    What languages does Dr. Feldstein speak?

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

    • English

    • French

    What conditions does Dr. Feldstein treat?

    As a Gastroenterologist, Dr. Feldstein 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. Feldstein. 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:

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

    ICD-10 Codes:

    • Z86010: Personal history of colon polyps
    • Z860100: Personal history of colon polyps, unspecified

    Also known as:

    • Other Stomach Inflammation
    • Stomach Inflammation
    • Stomach Disorder
    • Gastritis & Gastropathy
    • Other gastritis types
    • Various stomach inflammations
    • Uncommon gastritis
    • Gastritis
    • Inflamed stomach lining
    • Stomach lining inflammation

    ICD-10 Codes:

    • K2960: Other gastritis without bleeding
    • K2970: Gastritis, unspecified, 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:

    • 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:

    • Heartburn
    • Acid Reflux
    • Indigestion
    • GERD Symptoms

    ICD-10 Codes:

    • R12: Heartburn

    Also known as:

    • Second Degree Hemorrhoids
    • Hemorrhoids
    • Internal hemorrhoids that prolapse
    • Grade 2 hemorrhoids
    • Moderate hemorrhoids

    ICD-10 Codes:

    • K641: Second degree hemorrhoids

    Also known as:

    • Constipation
    • Difficulty Passing Stool
    • Infrequent Bowel Movements
    • Hard Stools

    ICD-10 Codes:

    • K5900: Constipation, unspecified

    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:

    • Abnormal Digestive Tract Imaging
    • Abnormal GI scan
    • Unusual digestive imaging
    • Digestive system imaging findings

    ICD-10 Codes:

    • R933: Abnormal findings on diagnostic imaging of other parts of digestive tract

    Also known as:

    • Anemia
    • Low Red Blood Cell Count
    • Low Hemoglobin
    • Iron deficiency

    ICD-10 Codes:

    • D649: Anemia, unspecified

    Also known as:

    • Diarrhea
    • Loose stools
    • Runny poop
    • Frequent bowel movements

    ICD-10 Codes:

    • R197: Diarrhea, unspecified

    Also known as:

    • Abdominal Pain
    • Stomach Ache
    • Belly Pain
    • Stomach Pain

    ICD-10 Codes:

    • R109: Unspecified abdominal pain

    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:

    • Family history of colon polyps
    • Inherited colon polyp risk
    • Genetic predisposition to colon polyps
    • Family history of intestinal growths

    ICD-10 Codes:

    • Z83719: Family history of colon polyps, unspecified

    Also known as:

    • Difficulty Swallowing
    • Swallowing Disorder
    • Dysphagia
    • Trouble swallowing
    • Painful swallowing

    ICD-10 Codes:

    • R1310: Dysphagia, unspecified

    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:

    • 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

    Does Dr. Feldstein accept my insurance?

    Dr. Feldstein accepts most major insurance plans. Important: Please call our office at (631) 862-3680 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Feldstein accept in Smithtown, NY?

    Dr. Feldstein in Smithtown, 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

    • Cigna

    • CVS Health (formerly Aetna)

    • Elevance Health Inc. (formerly Anthem)

    • EmblemHealth

    • Express Scripts

    • Medicare

    • Other Health Care Provider

    • State of New York

    • UnitedHealthcare

    View All Insurances

    Where is Dr. Feldstein's office located?

    Dr. Richard Feldstein's Primary Practice

    989 W Jericho Tpke

    Smithtown, NY 11787

    (631) 862-3680

    Get Directions

    Dr. Richard Feldstein's Practice 2

    48 Route 25A Ste 107

    Smithtown, NY 11787

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    Dr. Richard Feldstein's Practice 3

    1092 Jericho Tpke Ste 2S

    Commack, NY 11725

    (631) 543-8660

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

    Dr. Feldstein's National Provider Identifier (NPI) number is 1851533699.

    What common questions do patients ask about Dr. Feldstein?

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

    What is Dr. Richard Feldstein's specialty?

    Dr. Feldstein is a Gastroenterologist near Smithtown, 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. Feldstein to book an appointment today.

    Is this Dr. Richard Feldstein affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Feldstein is affiliated with St. Catherine Of Siena Hospital 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 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 Richard Feldstein accepting new patients in Smithtown, NY?

    Yes, Dr. Richard Feldstein is accepting new patients at this time.

    Does Dr. Richard Feldstein offer online booking?

    Please contact Dr. Feldstein's office at (631) 862-3680 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Richard Feldstein?

    Please contact Dr. Feldstein's office at (631) 862-3680 for information regarding telehealth appointment availability or for scheduling assistance.

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