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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. 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, 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:

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

    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:

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

    ICD-10 Codes:

    • K635: Polyp of colon

    Also known as:

    • Heartburn
    • Acid Reflux
    • Indigestion
    • GERD Symptoms

    ICD-10 Codes:

    • R12: Heartburn

    Also known as:

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

    ICD-10 Codes:

    • K5900: Constipation, unspecified

    What procedures does Dr. Feldstein perform?

    As a Gastroenterologist, Dr. Feldstein 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. 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:

    • Colonoscopy with Biopsy
    • Colonoscopy with Polyp Removal
    • Diagnostic Colonoscopy with Biopsy
    • Colonoscopy
    • Colorectal Cancer Screening Tests
    • Flexible Colonoscopy
    • Colon Biopsy
    • Large Intestine Scope
    • Colorectal Cancer Screening
    • Flexible Colonoscopy with Polypectomy
    • Colon Polyp Removal
    • Colorectal Lesion Excision
    • Colon Exam with Biopsy
    • Lower Endoscopy
    • Colon Cancer Screening

    CPT Codes:

    • 45380: Colonoscopy, flexible; with biopsy, single or multiple
    • 45385: Colonoscopy, flexible; with removal of tumor(s), polyp(s), or other lesion(s) by snare technique
    • 45378: Colonoscopy, flexible; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)

    Also known as:

    • Upper Endoscopy with Biopsy
    • Biopsy
    • Endoscopy
    • EGD with Biopsy
    • Gastroscopy with Biopsy
    • Esophagogastroduodenoscopy with Biopsy

    CPT Codes:

    • 43239: Esophagogastroduodenoscopy, flexible, transoral; with biopsy, single or multiple

    Also known as:

    • Colonoscopy with Injections
    • Diagnostic Upper Endoscopy with Biopsy
    • Flexible Sigmoidoscopy with Biopsy
    • Colonoscopy
    • Colorectal Cancer Screening Tests
    • Flexible Colonoscopy with Injection
    • Colon Scope with Medication
    • Therapeutic Colonoscopy
    • EGD with Biopsy
    • Esophagogastroduodenoscopy
    • Upper GI Endoscopy
    • Stomach Scope with Sample
    • Sigmoid Colon Scope with Biopsy
    • Lower Endoscopy with Tissue Sample
    • Flexible Sigmoidoscopy and Biopsy
    • Rectum and Lower Colon Exam

    CPT Codes:

    • 45381: Colonoscopy, flexible; with directed submucosal injection(s), any substance
    • 43235: Esophagogastroduodenoscopy, flexible, transoral; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
    • 45331: Sigmoidoscopy, flexible; with biopsy, single or multiple

    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:

    • Capsule Endoscopy
    • Pill Camera
    • Wireless Capsule Endoscopy
    • Small Bowel Capsule Endoscopy
    • Intestinal Imaging Pill

    CPT Codes:

    • 91110: Gastrointestinal tract imaging, intraluminal (eg, capsule endoscopy), esophagus through ileum, with interpretation and report

    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

    • ArcBest Corporation

    • Crown Cork and Seal Company

    • CVS Health (formerly Aetna)

    • Elevance Health Inc. (formerly Anthem)

    • EmblemHealth

    • Fort Healthcare

    • Medicare

    • Other Health Care Provider

    • 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

    Get Directions

    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, Mather Hospital, Stony Brook University Hospital, Long Island Jewish Medical Center, Peconic Bay Medical Center, South Shore University Hospital 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

    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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