Summary

Dr. Matias Dcosta specializes in gastroenterology and internal medicine, bringing nearly four decades of clinical experience to his practice. He earned his medical degree from SUNY Downstate Medical Center College of Medicine and has dedicated 39 years to helping patients with digestive health concerns. Dr. Dcosta is fluent in both English and Spanish, allowing him to serve a diverse patient population.

Dr. Dcosta practices at multiple locations throughout Suffolk County, including Port Jefferson Station and Smithtown, with affiliations at Mather Hospital and Saint Catherine of Siena Medical Center. He focuses on treating common digestive conditions such as hemorrhoids and diverticular disease. His practice includes diagnostic procedures like blood tests and stool testing to help identify gastrointestinal issues. Patients have given Dr. Dcosta an average rating of 3.3 out of 5 on Vitals.

Overview based on verified provider data

Quick Facts

  • 3.3
  • 39 years of experience
  • speaks English, Spanish
  • Suny Downstate Medical Center College Of Medicine
  • 3 written reviews
  • 2 specialties
  • 11 areas of expertise
  • 2 board certifications
  • 2 hospital affiliations
  • 4 office locations
  • Male

Office Locations

Dr. Matias Miguel Dcosta has 4 locations

Gastroenterology Associates Of Suffolk Pc

931 Hallock AvePort Jefferson Station, NY 11776
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

Mather Hospital

75 N Country RdPort Jefferson, NY 11777

Gastroenterology Associates Of Suffolk Pc

285 Middle Country RdSmithtown, NY 11787
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. Matias Miguel Dcosta, MD
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Dr. Matias Miguel Dcosta, MDRachel Oliver, APRNTheresa Obonyano, APRNLynn Collette-Zachar, APRN
GastroenterologyGastroenterologyGastroenterologyGastroenterology
Accepts New Patients Accepts New Patients Accepts New Patients
3.3 
39 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
Port Jefferson Station , NYSACRAMENTO , CASACRAMENTO , CATallahassee , FL
Med School: Suny Downstate Medical Center College Of Medicine Med School: University of South Alabama Med School: The University of Texas Health Science Center at Houston Med School: Regis College
Current Profile
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Insurance Plans Accepted by Dr. Matias Miguel Dcosta

Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.

Medical Specialties

Dr. Matias Miguel Dcosta has the following 2 specialties

Specialty Expertise

Dr. Matias Miguel Dcosta has the following 11 areas of expertise

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

Certifications, License, & Education

39 Years Experience

MEDICAL LICENSE

Medical Doctor, New York, 2026, Active

EDUCATION & TRAINING

Medical School

Suny Downstate Medical Center College Of MedicineGraduated in 1987

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Frequently Asked Questions

How can I make an appointment with Dr. Matias Dcosta?
You can find contact information for Dr. Matias Dcosta here on Vitals.
Where is Dr. Matias Dcosta's office located?
Dr. Matias Dcosta's office is located at 931 Hallock Ave, Port Jefferson Station, NY, 11776.
Does Dr. Matias Dcosta accept virtual/telehealth appointments?
Dr. Matias Dcosta has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Is Dr. Matias Dcosta accepting new patients?
Dr. Matias Dcosta has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
Does Dr. Matias Dcosta accept my insurance?
You can see the insurance plans that Dr. Matias Dcosta accepts on their Vitals profile.

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