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Dr. Kostas Sideridis, MD
Gastroenterology* Age 53
Dr. Kostas Sideridis, MD

Offers telehealth

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Dr. Kostas Sideridis, MD is a Gastroenterologist in Syosset, NY.
Dr. Kostas Sideridis, MD
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Dr. Kostas Sideridis, MD

Gastroenterology* Age 53
Syosset, NY
Accepting new patients
27 years of experience

Offers telehealth

Dr. Kostas Sideridis, MD is a Gastroenterologist in Syosset, NY.
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About

Dr. Sideridis graduated from NEW YORK INSTITUTE OF TECHNOLOGY / OLD WESTBURY. Dr. Kostas Sideridis, MD is a Gastroenterologist in Syosset, NY and has 27 years experience. Dr. Sideridis has experience treating conditions like Constipation, Abdominal Pain, Lactose Intolerance, Enteritis, Viral Enteritis, Familial Adenomatous Polyposis, Intestinal Diverticulitis, Infectious Diarrheal Disease, Chronic Gastritis, Gastrointestinal Bleeding, Gastroparesis, Dysentery, Gastritis, Nausea, Gastric Ulcer, Duodenal Ulcer and Diarrhea among other conditions at varying frequencies. Dr. Sideridis's office accepts new patients and telehealth appointments. Dr. Sideridis also speaks Greek. Dr. Sideridis is board certified in Gastroenterology and accepts multiple insurance plans.

Compare with other Gastroenterologists

Compare Dr. Sideridis with our nearby Gastroenterologists at Newyork-Presbyterian/Columbia University Medical Center
These providers are on the medical staff of Newyork-Presbyterian/Columbia University Medical Center
These providers are on the medical staff of Newyork-Presbyterian/Columbia University Medical Center.
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Experience Check

Enter a condition or procedure
Constipation
Abdominal Pain
Lactose Intolerance
Constipation
Abdominal Pain
Lactose Intolerance
Enteritis
Viral Enteritis
Familial Adenomatous Polyposis
Intestinal Diverticulitis
Infectious Diarrheal Disease
Chronic Gastritis
Gastrointestinal Bleeding
Gastroparesis
Dysentery
Gastritis
Nausea
  • View other providers who treat Nausea
Gastric Ulcer
Duodenal Ulcer
Diarrhea
  • View other providers who treat Diarrhea
Diaphragmatic and Hiatal Hernia
Hemorrhoids
Gastroesophageal Reflux Disease (GERD)
Indigestion
Pancreatitis
Acute Gastritis
Endoscopy
Duodenal Polypectomy
Dysphagia
Irritable Bowel Syndrome
Inflammatory Bowel Disease
Congenital Anomaly Esophagus
Rigid Proctosigmoidoscopy
Flexible Sigmoidoscopy
Manometry
Gallstones
Gas-Bloat Syndrome
Esophageal Ulcer
Intestinal Diverticulosis
Heartburn
Ulcerative Colitis
Intestinal Ulcer
Hypokalemia
Noninfectious Gastroenteritis and Colitis
Anemia
  • View other providers who treat Anemia
ERCP (Endoscopic Retrograde Cholangiopancreatography)
Colonoscopy, Proctosigmoidoscopy, and Sigmoidoscopy
Barrett's Esophagus
Colonoscopy
Dehydration
Vomiting Disorders
Esophagitis
Laparoscopic Removal of Stones from Biliary Tract
Peptic Ulcer
Reflux Esophagitis
Crohn's Disease
Gastrointestinal Malabsorption
Esophageal Motility Disorders
Intestinal Obstruction
Bile Duct Obstruction
Unexplained Weight Loss
Non-Alcoholic Fatty Liver Disease
Colorectal Polyp
Duodenitis
Pancreas Surgeries
Mallory-Weiss Syndrome
Upper Digestive Tract Cancer
Malnutrition
Anal or Rectal Pain
Removal or Destruction of Rectal or Intestinal Tumor (incl. Colonoscopy, Proctosigmoidoscopy, Sigmoidoscopy and Control of Hemorrhage)
Esophageal Varices
Cirrhosis
Gastroptosis
Liver Damage from Alcohol
Ileus
  • View other providers who treat Ileus
Ascites
  • View other providers who treat Ascites
Retroperitoneum Cancer
Bowel Strangulation
Alcoholic Cirrhosis
Alcoholic Fatty Liver
Alcoholic Gastritis
Alcoholic Hepatitis
All Types of Food Poisoning
Autoimmune Hepatitis
Barretts Esophagus with Dysplasia
Benign Neoplasm of the Digestive System
Biliary Cirrhosis
Celiac Disease
Cholangitis
Chronic Anal Fissure
Chronic Cholecystitis
Colon Cancer
Congenital Achalasia
Congenital Anomaly Bile Duct
Cyclical Vomiting
Cyclical Vomiting Syndrome
Cystic Fibrosis
Diffuse Esophageal Spasm
Duodenal Cancer
E. coli Food Poisoning
Eosinophilic Esophagitis
Esophageal Achalasia and Cardiospasm
Esophageal Diverticulum
Folate Deficiency Anemia
Food Allergy
Food Poisoning
Gastrojejunal Ulcer
Hemochromatosis
Hepatitis A
Hepatitis B
Hepatitis B - Immune Response
Hepatitis C
Hepatorenal Syndrome
Hernia
  • View other providers who treat Hernia
Hiatal Hernia
Hiatal Hernia with Obstruction
Intestinal Fistula
Intestinal Malabsorption Carbohydrate
Intestinal Prolapse
Ischemic Colitis
Liver Abscess
Meckel's Diverticulum
Mesenteric Panniculitis
Neoplasm of Gastrointestinal Tract
Neurogenic Bowel
Non-Neonatal Jaundice
Obstructed Inguinal Hernia
Pancreatic Pseudocyst
Pelvic Abscess
Pernicious Anemia
Primary Biliary Cholangitis
Primary Sclerosing Cholangitis
Proctoptosis
Pyloric Stenosis
Rectal Prolapse
Rectal Ulcer
Salmonella Food Poisoning
Sclerosing Mesenteritis
Spleen Cyst
Splenic Infarct
Splenomegaly
Stomach Stenosis
Viral Hepatitis
Viral Infection
Visceroptosis
Vitamin B12 Anemia
Vitamin_Deficiency
Abscess or Fluid Incision and Drainage
Bile Duct Procedure
Biliary Drainage
Colon Cancer Screening
Colorectal Cancer Screening
Fecal Impaction Removal
Gallbladder Scan
Hemorrhoidectomy or Excision of Anal Tags
Hepatitis A Screening
Hepatitis B Virus Screening
Hepatitis C Virus Screening
Hepatitis Screening
Impedance Testing
Instrumental Diagnostic Evaluation for Dysphagia
Liver Biopsy
Liver Function Test
pH Probe
  • View other providers who treat pH Probe
Proctosigmoidoscopy
Screening Colonoscopy
Sigmoidoscopy
Transendoscopic Stent Placement
Ultrasound, Endoanal
Ultrasound, Esophageal
VAP Lipid Testing
Wireless pH Testing

Insurance Accepted

* Please verify this information when scheduling an appointment.
  • Blue Priority (Select Network)-NY
    Blue Access (Select Network)-NY
    National (BlueCard) PPO
    National (BlueCard Basic) PPO
    Empire (Select Network)-NY POS
  • First Health (Coventry Health Care) PPO
  • MultiPlan PPO
  • Curative PPO Plus
    Curative EPO
    Curative PPO
  • Choice Care PPO
  • Blue Card PPO
  • Harvard Pilgrim Health Care PPO
  • HealthyBlue Advantage
    HealthyBlue 2.0
  • Choice Plus POS II
    Select
    Aetna

Locations

  1. 1 Long Island Medical PC
    237 Jericho Tpke, Syosset, NY 11791
  2. 2 William Schlesinger MD PC
    121 Eileen Way, Syosset, NY 11791
  3. 3 Syosset Hospital
    221 Jericho Tpke, Syosset, NY 11791

Patient Satisfaction

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Telehealth Options
This provider has not specified a telehealth appointment method. Would you still like to make an appointment with Dr. Sideridis?
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(516) 584-6400

About Me

Languages Spoken
Greek
Languages Spoken
Specialties*
Gastroenterology
Specialties*
  • *Sharecare does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
Common Questions and Answers
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Frequently Asked Questions

Find contact information here to make an appointment.

A list of accepted insurance providers is available on the Sharecare insurance check. It is always a good idea to verify your insurance when making an appointment.

New patients are generally accepted by Dr. Kostas Sideridis, MD. To arrange an appointment, call the number on Dr. Sideridis's profile.

Dr. Sideridis frequently treats the following conditions: Constipation, Abdominal Pain, Lactose Intolerance, Enteritis, Viral Enteritis, Familial Adenomatous Polyposis, Intestinal Diverticulitis, Infectious Diarrheal Disease, Chronic Gastritis, Gastrointestinal Bleeding, Gastroparesis, Dysentery, Gastritis, Nausea, Gastric Ulcer, Duodenal Ulcer and Diarrhea. See more on Sharecare.

Dr. Kostas Sideridis, MD is affiliated with North Shore University Hospital and Plainview Hospital.

Yes, Dr. Kostas Sideridis, MD holds board certification in Gastroenterology.

Education
Medical Education
  • NEW YORK INSTITUTE OF TECHNOLOGY / OLD WESTBURY
    1999
Medical Education
Board Certifications
  • Gastroenterology
Board Certifications
What’s a board certification and why is it important that my provider has one?

A board certification represents a provider’s dedication to ongoing training in one or more specialties, including the completion of intensive exams. While not all specialties have board certifications, if your provider does have one they’ve taken the extra step to master their specialty and to keep up with the latest advancements in their field.

Hospital Affiliations

  • North Shore University Hospital

    300 Community Dr, Manhasset, NY

  • Plainview Hospital

    888 Old Country Rd, Plainview, NY

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