Dr. Andrew T. Marshall
- Gender: Male
- Experience: 29 years
- Graduated from: Icahn School Of Medicine At Mount Sinai
- Graduation year: 1992
- Sole propriator: Yes
- NPI: 1801846290
Dr. Andrew T. Marshall M.D.
Gastroenterologist
He is located at 1800 Rockaway Avenue Suite 201 in Hewlett, NY 11557. Can help patients with the following: Acute Pain, Bad Breath, Colonoscopy, Crohn's Disease, Fever, Gastroparesis. His National Provider Identifier (NPI) number is 1801846290. Appointment can be made via the phone number (516) 593-2629. He is affiliated with 3 practices.
Conditions treated
Dr. Andrew Todd Marshall, being an gastroenterologist, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. Andrew T. Marshall.
- Abdominal Pain
- Acute Pain
- Anemia
- Arthritis
- Ascites
- Asthma
- Atherosclerosis
- Autoimmune Hepatitis
- Bad Breath
- Barrett's Esophagus
- Bladder Control
- Bleeding Varices
- Blood in Stool
- Cancer
- Carcinoid Tumor
- Celiac Disease
- Chest Pain
- Childhood Obesity
- Cholecystitis
- Chronic Obstructive Pulmonary Disease (COPD)
- Cirrhosis
- Clostridium Difficile Colitis
- Colitis
- Colonoscopy
- Common Cold
- Constipation
- Crohn's Disease
- Cystitis
- Diarrhea
- Diverticulosis
- Edema
- Eosinophilic Esophagitis
- Esophagitis
- Fatty Liver Disease
- Feeding and Swallowing
- Fever
- Food Allergies
- Gallbladder Pain
- Gastric Bypass Surgery
- Gastritis
- Gastroesophageal Reflux Disease (GERD)
- Gastroparesis
- General Care
- Headache
- Heart Disease
- Heartburn
- Helicobacter Pylori Infection
- Hemorrhoids
- Hepatitis A (HAV)
- Hepatitis B (HBV)
- Hepatitis C (HCV)
- Hiatal Hernia
- High Blood Pressure
- Hot Flashes
- Hyperlipidemia
- Hyponatremia
- Indigestion
- Inflammatory Bowel Disease (IBD)
- Influenza
- Inguinal Hernia
- Internal Bleeding
- Intussusception
- Irritable Bowel Syndrome (IBS)
- Lactose Intolerance
- Leaky Gut Syndrome
- Liver Disease
- Migraine
- Nausea and Vomiting
- Obesity
- Osteoporosis
- Pancreas Divisum
- Pancreatic Cancer
- Pancreatic Cysts
- Pancreatitis
- Peptic Ulcer
- Portal Hypertension
- Prescription Refill
- Primary Biliary Cirrhosis (PBC)
- Primary Sclerosing Cholangitis (PSC)
- Stomach Cancer
- Swallowing Disorders
- Ulcerative Colitis
- Urethritis
- Urinary Tract Infection (UTI)
Procedures Performed by Dr. Andrew T. Marshall
Medicare Enrollment
Dr. Andrew T. Marshall is enrolled to bill Medicare as a Practitioner - Internal Medicine (also registered under: Practitioner - Gastroenterology) .
Bills through: Optum Medical Care Pc
Based on Medicare's public enrollment records as of Sep 29, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.
Payments received
Drug payment
| Sanofi | $16 |
Other
| Food and Beverage | $16 |
Studies
ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI
Graduated in 1992Additional Specialities
- Internist
- Specialist
Affiliated practices
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Questions & Answers
Does Dr. Andrew Todd Marshall have affiliation with practices?
Dr. Andrew Todd Marshall is affiliated with Long Island Skin Cancer & Dermatologic Surgery. For the full list of practices see this list.
What conditions does Dr. Andrew Todd Marshall treat?
Dr. Andrew Todd Marshall provides treatment for Acute Pain, Bad Breath, Colonoscopy, Crohn's Disease, Fever, Gastroparesis. For the full list see this list.
Where can you meet with Dr. Andrew Todd Marshall?
Dr. Andrew Todd Marshall's office is located at 1800 Rockaway Avenue Suite 201 in Hewlett, NY 11557.