~ JohnGaines.MD.com ~

Dr. John Gaines is an internist in Smithfield, RI. He is trained to diagnose & treat an extensive variety of diseases & illnesses in adults.

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Dr. John Gaines graduated from SUNY Downstate Medical Center in 1985.

Dr. Gaines has one office in Rhode Island where he specializes in Internal Medicine. Learn more.

Dr. Gaines works with three doctors including Dr. Vanessa Greenier and Dr. Richard Ryter.

Education & Training  

Medical School

Hospital Affiliations

  • Miriam Hospital

Languages Spoken  

  • English

Coastal Medical Inc  


41 Sanderson Rd Ste 201, Smithfield, Rhode Island 02917-2603

Office Hours

  Open Lunch Close
Mon 8:00 am 12:00 - 12:30 pm 3:30 pm
Tue 8:00 am 12:00 - 12:30 pm 3:30 pm
Wed 8:00 am 12:00 - 12:30 pm 3:30 pm
Thu 8:00 am 12:00 - 12:30 pm 3:30 pm
Fri 8:00 am 12:00 - 12:30 pm 3:30 pm

Office Details

Doctor Specialty Internal Medicine
Practice SpecialtyInternal Medicine
Group PracticeCoastal Medical
Hospital Affiliation
  • Miriam Hospital
Languages Spoken Arabic, English, French, German, Italian, Korean, Mandarin, Polish, Portuguese, Russian, Spanish, Tagalog, Vietnamese

Insurances Accepted  

  • Aetna
  • UnitedHealthcare