Personalized Primary Care


Comprehensive Services

Driving Directions

Driving Directions

New Patient Information


New Patient Info



Welcome To Allen Medical

Allen Medical Associates' new home; a state of the Art Technologically Advanced 5,000 square foot Medical Facility was designed to be the ultimate Primary Care Prevention Center. We utilize the latest technology in computerized disease detection and prevention. We have learned that it is far easier to prevent many catastrophic medical problems than to deal with them once they have settled in. While we do prescribe medications when necessary, our ultimate goal is to avoid them when possible. In our almost 20 years of Medical Care, we have seen over and over the dramatic benefits of diet and exercise on disease prevention and treatment.

Office Hours

Mon-Fri: 7:00am - 7:00pm | Sat-Sun: 7:00am-3:00pm

Virtual Tour

Meet Our Physician

Physician 2

Dr. Marc Allen is board certified in internal medicine and specializes in primary care and preventative medicine. Dr Allen believes it is far more effective to prevent medical problems before they have a lasting effect on ones life.

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Dr. Marc Allen

Dr. Marc Allen
  • Address

    1045 West Jericho Turnpike
    Smithtown, NY 11787

  • Phone & Email

    Phone: 631-543-8844
    Fax: 631-543-8840