Summary

Dr. Andrew Marshall is a gastroenterology specialist who earned his medical degree from the Icahn School of Medicine at Mount Sinai. He completed his residency training at Beth Israel Medical Center, building a strong foundation in internal medicine before focusing on digestive health. With 34 years of experience in gastroenterology, Dr. Marshall has developed extensive expertise in diagnosing and treating conditions affecting the digestive system. He is fluent in English.

Dr. Marshall practices at Northwell Health Hospital and sees patients in Hewlett, New York. His clinical focus includes treating high cholesterol in children and teens, hyperlipidemia, and familial lipid disorders. He performs essential diagnostic procedures such as blood tests and electrocardiograms to evaluate patient health. Dr. Marshall also conducts fecal occult blood tests to screen for potential digestive issues. Patients have given him an average rating of 3.3 on Vitals.

Overview based on verified provider data

Quick Facts

  • 3.3
  • 34 years of experience
  • 30 insurance plans accepted
  • speaks English
  • Beth Israel Medical Center
  • 6 written reviews
  • 2 specialties
  • 11 areas of expertise
  • 1 board certification
  • 1 hospital affiliation
  • 1 office location
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Location

Andrew T Marshall

1800 Rockaway Ave Ste 201Hewlett, NY 11557
Mon7:00 am - 5:00 pm
Tue7:00 am - 5:00 pm
Wed7:00 am - 4:00 pm
Thu7:00 am - 5:00 pm
Fri7:00 am - 4:00 pm
Sat7:00 am - 1:00 pm
SunClosed

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Andrew T Marshall, MDDr. Connie Park, MDDr. Ghassan Philip Sayegh, DODr. Michael Schopis, MD
GastroenterologyGastroenterologyGastroenterologyGastroenterology
Accepts New Patients Accepts New Patients Accepts New Patients
3.3 
34 Years of Experience 9 Years of Experience
No Virtual Visit Option Virtual Visit Available No Virtual Visit Option Virtual Visit Available
Speaks English Speaks English Speaks English Speaks English
Hewlett , NYNew York , NYYONKERS , NYNEW YORK , NY
Med School: Icahn School Of Medicine At Mount Sinai Med School: State University of New York Med School: Osteopathic Medical Degree from New York Institute of Technology College of Osteopathic Medicine. Med School: University Of Toledo College Of Medicine
Current Profile
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Insurance Plans Accepted by Andrew T Marshall

  • Accepts Medicare
  • Aetna
  • Affinity by Molina Healthcare
  • Anthem Blue Cross Blue Shield
  • CDPHP
  • Centivo
  • Cigna
  • ConnectiCare
  • Consumer Health Network
  • Coventry
  • EmblemHealth Insurance Company
  • EmblemHealth Plan Inc
  • Empire Blue Cross Blue Shield
  • Fidelis
  • First Health Network
  • Great West Healthcare
  • Health Insurance Plan of Greater Network
  • Healthfirst
  • Humana
  • MagnaCare
  • Medicare
  • Multiplan
  • MVP Health Care
  • Northwell Direct Network
  • Oscar
  • Oxford
  • Partners Health Plan
  • Private Healthcare Systems
  • The New York State Health Insurance Program
  • Tricare
  • United Healthcare

Medical Specialties

Andrew T Marshall has the following 2 specialties

Specialty Expertise

Andrew T Marshall has the following 11 areas of expertise

  • Abdominal Pain
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Acid Reflux Disease (GERD)
  • Celiac Disease
  • Colonoscopy
  • Constipation
  • Gastroenterologist
  • Hemorrhoids
  • Hepatitis C
  • Irritable Bowel Syndrome (IBS)
  • Ulcerative Colitis

Certifications, License, & Education

34 Years Experience

Andrew T Marshall holds an active medical license in the state of New York.

Medical License

Medical Doctor with an active medical license in the state of New York that expires in 2026.

Education & Training

Residency

Completed their residency at Beth Israel Medical Center.

Medical School

Graduated from Icahn School Of Medicine At Mount Sinai in 1992.

NPI Number

Andrew T Marshall's NPI number is 1801846290.

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Frequently Asked Questions

Is Andrew Marshall accepting new patients?
Andrew Marshall has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
Does Andrew Marshall accept my insurance?
You can see the insurance plans that Andrew Marshall accepts on their Vitals profile.
Does Andrew Marshall accept virtual/telehealth appointments?
Andrew Marshall has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Where is Andrew Marshall's office located?
Andrew Marshall's office is located at 1800 Rockaway Ave Ste 201, Hewlett, NY, 11557.
Which hospitals is Andrew Marshall affiliated with?
Andrew Marshall is affiliated with Northwell Health Hospital.

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