Summary

Dr. Robert Lazar is a gastroenterologist who specializes in diagnosing and treating disorders of the digestive system. He earned his medical degree from Universidad Autonoma De Guadalajara Facultad De Medicina and completed his residency at SUNY. With 45 years of experience in gastroenterology, Dr. Lazar has developed extensive expertise in caring for patients with complex digestive health needs. He is fluent in both English and Spanish.

Dr. Lazar practices at Saint Catherine Of Siena Medical Center in Smithtown, New York, and maintains affiliations with Saint Johns Episcopal Hospital South Shore. His clinical focus includes treating colon polyps, hemorrhoids, and gastritis. He performs essential procedures such as colonoscopy and lower GI endoscopy for colorectal cancer screening. Patients have given Dr. Lazar an average rating of 3.9 on Vitals.

Overview based on verified provider data

Quick Facts

  • 3.9
  • 45 years of experience
  • 22 insurance plans accepted
  • speaks English, Spanish
  • Suny
  • 6 written reviews
  • 1 specialty
  • 10 areas of expertise
  • 1 board certification
  • 2 hospital affiliations
  • 1 office location
  • Male

Patients’ Perspective

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

Office Location

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Dr. Robert Michael Lazar, MDDr. Weidan Zhao, MDLynn Collette-Zachar, APRNDr. Connie Park, MD
GastroenterologyGastroenterologyGastroenterologyGastroenterology
Accepts New Patients Accepts New Patients Accepts New Patients
3.9 
45 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
Smithtown , NYNEW YORK , NYTallahassee , FLNew York , NY
Med School: Universidad Autonoma De Guadalajara Facultad De Medicina Med School: University of Toledo Med School: Regis College Med School: State University of New York
Current Profile
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Insurance Plans Accepted by Dr. Robert Michael Lazar

  • 1199SEIU
  • Aetna
  • Affinity Health Plan
  • Anthem Blue Cross
  • Blue Cross Blue Shield
  • Cigna
  • EmblemHealth
  • HealthFirst (NY)
  • HealthSmart
  • Humana
  • MagnaCare
  • Medicare
  • Medicare - Medicaid
  • Medicare - Medicare
  • Meritain Health
  • Molina Healthcare
  • MVP Health Care
  • Oscar Health Insurance
  • Tricare
  • UnitedHealthcare
  • UnitedHealthcare - HMO
  • UnitedHealthcare Oxford

Medical Specialties

Dr. Robert Michael Lazar has the following specialty

Specialty Expertise

Dr. Robert Michael Lazar has the following 10 areas of expertise

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

Certifications, License, & Education

45 Years Experience

Dr. Robert Michael Lazar 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 2027.

Education & Training

Residency

Completed their residency at Suny.

Medical School

Graduated from Universidad Autonoma De Guadalajara Facultad De Medicina in 1981.

NPI Number

Dr. Lazar's NPI number is 1730164179.

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Frequently Asked Questions

Which hospitals is Dr. Robert Michael Lazar affiliated with?
Dr. Robert Michael Lazar is affiliated with Saint Catherine Of Siena Medical Center and Saint Johns Episcopal Hospital South Shore.
How can I make an appointment with Dr. Robert Michael Lazar?
You can find contact information for Dr. Robert Michael Lazar here on Vitals.
Where is Dr. Robert Michael Lazar's office located?
Dr. Robert Michael Lazar's office is located at 50 Route 25a, Smithtown, NY, 11787.
Does Dr. Robert Michael Lazar accept my insurance?
You can see the insurance plans that Dr. Robert Michael Lazar accepts on their Vitals profile.
What languages does Dr. Robert Michael Lazar speak?
Dr. Robert Michael Lazar speaks English and Spanish.

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