Dr. Mary Mattheos, MD
631-226-0388

Primary Care Physician

Dr. Mary Mattheos, MD

Internal Medicine
Cardiology
Nephrology
Diabetes Care
Chiropractic  Care

Call 911 immediately if you believe you are experiencing a medical emergency.

About Us

The office of Dr. Mary Mattheos is located in Lindenhurst, Long Island. Dr. Mattheos has been treating patients since 1987 and provides highly accurate diagnoses.

The state-of-the-art office of Dr. Mattheos offers world-class medical care in Internal Medicine, Diet and Weight Loss, Diabetic Care, Cariology, Nephrology (Suffolk Nephrology Associates), and Chiropractic Care.

Our Departments

We provide world class treatment across several medical disciplines.

Internal Medicine

Internal Medicine

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Cardiology

Cardiology

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Diabetic Care

Diabetic Care

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Nephrology

Nephrology

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Chiropractic Care

Chiropractic Care

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Our Providers

dr mary mattheos

Dr. Mary Mattheos, MD

Internal Medicine
pa tom

Thomas J Cipolla, PA

Physician Assistant
dr james

Dr. James Tsiakos, MD

Cardiology, Internal Medicine
dr chris

Dr. Christos Vasakiris, CD

Chiropractic

Patient Testimonials

See why our patients love us.

4.6/5
"My favorite doctor to see - she really listens and is very understanding and helps the best of her ability."
"Very thorough, very attentive, very professional. Has great personality, made me feel totally comfortable."
"Dr. Mattheos is very thorough. Sincere. Great bedside manner. Highly recommend."
"She's incredible. Compassionate, and very thorough. I'd recommend her to any of my loved ones."
"I was with the dr. assistant and I would definitely refer him to other patients. He was thorough, patient and understanding."
"EXCELLENT AWESOME staff and Dr. Mattheos are extraordinary people. Love the professionalism and the stmosphere. Outstanding."
"Found my new primary care physician. Dr. Mattheos was great! Very thorough and knowledgeable. I felt very comfortable."

Conveniently Located on Montauk Highway

Operating Hours:

  • Monday
    9:30 am - 8:00 pm
  • Tuesday
    9:30 am - 8:00 pm
  • Wednesday
    9:30 am - 5:30 pm
  • Thursday
    9:30 am - 8:00 pm
  • Friday
    9:30 am - 5:30 pm
  • Saturday
    9:00 am - 1:00 pm
  • Sunday
    CLOSED

350 W Montauk Hwy.
Lindenhurst, NY 11757