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Dr. Andrew Marshall, MD

Gastroenterology* Age 58
Dr. Andrew Marshall, MD
4.4 (222 Ratings)

Offers telehealth

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Dr. Andrew Marshall, MD is a Gastroenterologist in Hewlett, NY.
Dr. Andrew Marshall, MD
4.4 (222 Ratings)
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Dr. Andrew Marshall, MD

Gastroenterology* Age 58
Hewlett, NY
Accepting new patients

Offers telehealth

Dr. Andrew Marshall, MD is a Gastroenterologist in Hewlett, NY.

About

Dr. Marshall graduated from Icahn School of Medicine at Mount Sinai. Dr. Andrew Marshall, MD is a Gastroenterologist in Hewlett, NY. Dr. Marshall currently practices at Optum Internal Medicine and Gastroenterology - Hewlett. At present, Dr. Marshall received an average rating of 4.4/5 from patients and has been reviewed 222 times. Dr. Marshall's office accepts new patients and telehealth appointments. Dr. Marshall is board certified in Gastroenterology and accepts multiple insurance plans.

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Experience Check

Enter a condition or procedure
Advance Directive End of Life Planning
Immunization Administration
Fecal Occult Blood Test for Colorectal Cancer
Advance Directive End of Life Planning
Immunization Administration
Fecal Occult Blood Test for Colorectal Cancer
Advance Directive End of Life Planning
Immunization Administration
Fecal Occult Blood Test for Colorectal Cancer
Abdominal Pain
Acute Upper Respiratory Infection
Barrett's Esophagus
Barretts Esophagus with Dysplasia
Diaphragmatic and Hiatal Hernia
Diarrhea
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Esophagitis
Gastroesophageal Reflux Disease (GERD)
Intestinal Diverticulosis
Joint Pain
Non-Alcoholic Fatty Liver Disease
Reflux Esophagitis
Arterial Blood Gas Test (ABG)
Colonoscopy, Proctosigmoidoscopy, and Sigmoidoscopy
Electrocardiogram (EKG)
Flexible Sigmoidoscopy
Manometry
Rigid Proctosigmoidoscopy
Wellness Examination
Administrative Physical
Anal or Rectal Pain
Anemia
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Benign Neoplasm of the Digestive System
Celiac Disease
Cirrhosis
Colorectal Polyp
Congenital Achalasia
Constipation
Dehydration
Duodenal Ulcer
Duodenitis
Dysentery
Dysphagia
Enteritis
Eosinophilic Esophagitis
Esophageal Achalasia and Cardiospasm
Esophageal Ulcer
Esophageal Varices
Familial Adenomatous Polyposis
Gallstones
Gas-Bloat Syndrome
Gastric Ulcer
Gastritis
Gastrointestinal Bleeding
Gastrointestinal Malabsorption
Gastroptosis
Hemorrhoids
Hepatitis B - Immune Response
Hepatitis C
Hernia
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Hiatal Hernia
Indigestion
Infectious Diarrheal Disease
Inflammatory Bowel Disease
Intestinal Diverticulitis
Intestinal Malabsorption Carbohydrate
Intestinal Obstruction
Intestinal Ulcer
Irritable Bowel Syndrome
Lactose Intolerance
Liver Damage from Alcohol
Nausea
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Non-Neonatal Jaundice
Noninfectious Gastroenteritis and Colitis
Pancreatitis
Peptic Ulcer
Pharyngitis
Shortness of Breath
Ulcerative Colitis
Unexplained Weight Loss
Viral Enteritis
Viral Hepatitis
Viral Infection
Vitamin_Deficiency
Vomiting Disorders
Colon Cancer Screening
Colonoscopy
Colorectal Cancer Screening
Duodenal Polypectomy
ERCP (Endoscopic Retrograde Cholangiopancreatography)
Gallbladder Scan
Hepatitis A Screening
Hepatitis B Virus Screening
Hepatitis C Virus Screening
Hepatitis Screening
Impedance Testing
Instrumental Diagnostic Evaluation for Dysphagia
Liver Function Test
pH Probe
  • View other providers who treat pH Probe
Proctosigmoidoscopy
Removal or Destruction of Rectal or Intestinal Tumor (incl. Colonoscopy, Proctosigmoidoscopy, Sigmoidoscopy and Control of Hemorrhage)
Screening Colonoscopy
Ultrasound
VAP Lipid Testing
Wireless pH Testing

Insurance Accepted

* Please verify this information when scheduling an appointment.
  • Consumer Health Network
  • Cigna
    Great West Healthcare-Cigna
  • Tricare
  • Medicare
  • MultiPlan PPO
  • Private HealthCare Systems
  • Empire Blue Cross Blue Shield
  • HealthFirst
  • MagnaCare
  • Connecticare
  • United Healthcare
  • Coventry Health Care
  • MVP Health Care
  • Aetna
  • Humana

Locations

  1. 1 Optum Internal Medicine and Gastroenterology - Hewlett
    1800 Rockaway Ave Ste 201, Hewlett, NY 11557

Patient Satisfaction

Likelihood to recommend Dr. Marshall
4.4
Based on 222 Reviews
5 Stars (155)
4 Stars (36)
3 Stars (10)
2 Stars (7)
1 Star (14)

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Patient Reviews
Jan 18, 2024
Doctor is a very good listener, not an alarmist and very knowledgeable.
— Jan 18, 2024
See more reviews on Healthgrades
Photo: Dr. Andrew Marshall, MD
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Dr. Marshall's Office & Staff

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Telehealth Options
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(516) 593-4200

About Me

Specialties*
Gastroenterology
Internal Medicine
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.
Education

Education

Medical Education
  • Icahn School of Medicine at Mount Sinai
Medical Education

Board Certifications

Board Certifications
  • Gastroenterology and Internal Medicine
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.
Common Questions and Answers
Responses are sourced directly from patients.
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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. Andrew Marshall, MD. To arrange an appointment, call the number on Dr. Marshall's profile.

Yes, Dr. Andrew Marshall, MD holds board certification in Gastroenterology and Internal Medicine.