Summary

With 54 years in gastroenterology and internal medicine, Dr. William Cohn treats colon polyps, diverticular disease, and diverticulosis, and performs colonoscopy, lower GI endoscopy, and upper GI endoscopy. He is affiliated with Saint Charles Hospital and sees patients at locations in East Setauket and Wading River, New York.

Dr. Cohn completed his residency at Medical College of Virginia Hospital and earned his medical degree from Virginia Commonwealth University School of Medicine. He speaks English and Spanish. Patients on Vitals rate Dr. Cohn 4.4 out of 5.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 4.4
  • 54 years of experience
  • 37 insurance plans accepted
  • speaks English, Spanish
  • Medical College Of Virginia Hospital
  • 6 written reviews
  • 2 specialties
  • 13 areas of expertise
  • 1 hospital affiliation
  • 4 office locations
  • Male

Patients’ Perspective

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

Office Locations

Dr. William Jay Cohn has 4 locations

Long Island Digestive Disease Consultants

3400 Nesconset Hwy Ste 101East Setauket, NY 11733
Mon7:30 am - 5:00 pm
Tue7:30 am - 5:00 pm
Wed7:30 am - 5:00 pm
Thu7:30 am - 5:00 pm
Fri7:30 am - 5:00 pm
SatClosed
SunClosed

Northwell Health

271 New York 25A Suite 1Wading River, NY 11792
Mon9:00 am - 5:00 pm
Tue9:00 am - 5:00 pm
Wed9:00 am - 5:00 pm
Thu9:00 am - 5:00 pm
Fri9:00 am - 5:00 pm
SatClosed
SunClosed

Mather Hospital

75 N Country RdPort Jefferson, NY 11777

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Dr. William Jay Cohn, MDDr. Michael Seth Rosman, MDJan Seiler, APRNDr. Connie Park, MD
GastroenterologyGastroenterologyGastroenterologyGastroenterology
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
4.4 
5 
0 
5 
54 Years of Experience 10 Years of Experience 9 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks English, Spanish Speaks English Speaks English Speaks English
East Setauket , NYNew York , NYMontgomery , ALNew York , NY
Med School: Virginia Commonwealth University School Of Medicine Med School: New York University School Of Medicine Med School: Georgia State University Med School: SUNY Downstate Health Sciences University College of Medicine (State University of New York)
Current Profile
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Insurance Plans Accepted by Dr. William Jay Cohn

  • Accepts Medicare
  • Accepts Medicaid
  • 1199SEIU
  • AARP
  • Aetna
  • Aetna - PPO
  • Anthem Blue Cross
  • Assurant Health
  • Blue Cross Blue Shield
  • CHAMPVA - HMO
  • Cigna
  • EmblemHealth
  • EmblemHealth - HMO
  • EmblemHealth - Medicare (Advantage HMO)
  • Fidelis Care (NY)
  • Fidelis Care (NY) - Medicaid
  • GEHA
  • HealthFirst (NY)
  • Humana
  • Humana - Medicare
  • Humana - Medicare (Advantage HMO)
  • MagnaCare
  • Medicaid - Medicaid
  • Medicaid - Medicaid (Managed)
  • Medicare
  • Medicare - HMO
  • Medicare - Medicare
  • Meritain Health
  • MVP Health Care
  • Northwell Direct
  • Palmetto GBA
  • Palmetto GBA - Medicare
  • Transamerica
  • Tricare
  • UnitedHealthcare
  • UnitedHealthcare - HMO
  • UnitedHealthcare - PPO
  • UnitedHealthcare Oxford
  • Wellcare

Medical Specialties

Dr. William Jay Cohn has the following 2 specialties

Specialty Expertise

Dr. William Jay Cohn has the following 13 areas of expertise

  • Abdominal Pain
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Acid Reflux Disease (GERD)
  • Celiac Disease
  • Colonoscopy
  • Constipation
  • Gastrointestinal Endoscopy
  • Hemorrhoids
  • Hepatitis C
  • Internal Medicine
  • Irritable Bowel Syndrome (IBS)
  • Liver Diseases
  • Ulcerative Colitis

Certifications, License, & Education

54 Years Experience

Dr. William Jay Cohn 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 Medical College Of Virginia Hospital.

Medical School

Graduated from Virginia Commonwealth University School Of Medicine in 1972.

NPI Number

Dr. Cohn's NPI number is 1861459208.

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Frequently Asked Questions

Is Dr. William Cohn accepting new patients?
Dr. William Cohn is accepting new patients on Vitals. View Dr. William Cohn's profile on Vitals to make an appointment.
How can I make an appointment with Dr. William Cohn?
You can find contact information for Dr. William Cohn here on Vitals.
Does Dr. William Cohn accept virtual/telehealth appointments?
Dr. William Cohn has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
What languages does Dr. William Cohn speak?
Dr. William Cohn speaks English and Spanish.
Does Dr. William Cohn accept my insurance?
You can see the insurance plans that Dr. William Cohn accepts on their Vitals profile.

Data Sources

This provider profile is built using data from:

  • NPPES NPI Registry
  • State medical licensing boards
  • Healthcare system and provider network data

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