Summary

Dr. Michael Nathanson is a gastroenterology specialist who also practices internal medicine. He earned his medical degree from Case Western Reserve University School of Medicine and brings four decades of clinical experience to his practice. Dr. Nathanson focuses on digestive health and comprehensive internal medicine care.

Dr. Nathanson practices at multiple Yale New Haven Health locations throughout Connecticut, including New Haven and Bridgeport. He treats patients with liver scarring, pregnancy-related stomach pain, and fluid buildup in the abdomen. His diagnostic expertise includes comprehensive blood work to evaluate metabolism and body chemistry balance. Patients rate Dr. Nathanson 4.0 out of 5 stars for his care.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 4
  • 42 years of experience
  • 13 insurance plans accepted
  • Case Western Reserve University School Of Medicine
  • 2 specialties
  • 12 areas of expertise
  • 2 board certifications
  • 6 office locations
  • Male

Office Locations

Dr. Michael Harris Nathanson has 6 locations

Yale School Of Medicine Department Of Neurology

15 York StNew Haven, CT 06510
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

Pediatric Gastroenterology And Hepatology

333 Cedar StNew Haven, CT 06510
Mon8:30 am - 5:00 pm
Tue8:30 am - 5:00 pm
Wed8:30 am - 5:00 pm
Thu8:30 am - 5:00 pm
Fri8:30 am - 5:00 pm
SatClosed
SunClosed

Yale New Haven Hospital

20 York StNew Haven, CT 06510

Yale New Haven Health Bridgeport Hospital

267 Grant StBridgeport, CT 06610

Yale University School Of Medicine Rheumatology

300 Cedar StNew Haven, CT 06519
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

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Dr. Michael Harris Nathanson, MDJi Soo Choi, APRNDr. Mark Alan Swidler, MDDr. Jillian Lee Anspach, MD
GastroenterologyGastroenterologyNephrologyAnesthesiology
Accepts New Patients Accepts New Patients Accepts New Patients
4.3 
42 Years of Experience 48 Years of Experience 23 Years of Experience
No Virtual Visit Option Virtual Visit Available No Virtual Visit Option No Virtual Visit Option
Speaks English Speaks English, Spanish Speaks English
New Haven , CTSACRAMENTO , CANew Haven , CTNew Haven , CT
Med School: Case Western Reserve University School Of Medicine Med School: New York University Med School: Albert Einstein College Of Medicine Of Yeshiva University Med School: University Of Virginia School Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. Michael Harris Nathanson

  • Accepts Medicare
  • Accepts Medicaid
  • Aetna
  • Blue Cross Blue Shield
  • Cigna
  • ConnectiCare
  • ConnectiCare - Medicare
  • Medicaid - Medicaid
  • Medicaid - Medicaid (Managed)
  • Medicare
  • Medicare - Medicare
  • Meritain Health
  • Neighborhood Health Plan
  • Optum Health
  • UnitedHealthcare

Medical Specialties

Dr. Michael Harris Nathanson has the following 2 specialties

Specialty Expertise

Dr. Michael Harris Nathanson has the following 12 areas of expertise

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

Certifications, License, & Education

42 Years Experience

MEDICAL LICENSE

Medical Doctor, Connecticut, 2026, Active

EDUCATION & TRAINING

Medical School

Case Western Reserve University School Of MedicineGraduated in 1985
Case Western Reserve University School Of MedicineGraduated in 1984

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Frequently Asked Questions

Is Dr. Michael Nathanson accepting new patients?
Dr. Michael Nathanson is accepting new patients on Vitals. View Dr. Michael Nathanson's profile on Vitals to make an appointment.
Does Dr. Michael Nathanson accept virtual/telehealth appointments?
Dr. Michael Nathanson has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
How can I make an appointment with Dr. Michael Nathanson?
You can find contact information for Dr. Michael Nathanson here on Vitals.
Does Dr. Michael Nathanson accept my insurance?
You can see the insurance plans that Dr. Michael Nathanson accepts on their Vitals profile.
Where is Dr. Michael Nathanson's office located?
Dr. Michael Nathanson's office is located at 15 York St, New Haven, CT, 06510.

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