Dr. John Folan, MD

Internal Medicine  |  
Male  |  
Age 60
Insurances AcceptedSave
Dr. John Folan, MD
Dr. John Folan, MD is an internal medicine doctor who practices in Smithtown, NY. He is 60 years old and has been practicing for 34 years. Dr. Folan is affiliated with Stony Brook University Hospital and Saint Catherine of Siena Medical Center.


50 Route 25A Ste 740

Smithtown, NY 11787

Contact Information
Dr. John Folan, MD

Dr. John Folan, MD

Accepted insurance

  • Aetna
  • Blue Cross Blue Shield
  • Capital District Physician's Health Plan (CDPHP)
  • Cigna
  • Commercial Insurance Company
  • Connecticare
  • EmblemHealth
  • Empire Blue Cross Blue Shield
  • First Health (Coventry Health Care)
  • Government Employees Health Association (GEHA)
  • Humana
  • Locals (any local)
  • MagnaCare
  • Mail Handlers Benefit Plan (MHBP)
  • 7 More

*Please verify this information when scheduling an appointment.

Learn about Dr. Folan

Dr. Folan's Experience

Dr. Folan's experience matches your search based on the following criteria:
  • Based on total number of patients treated over the last 12 months
  • Specializes in Internal Medicine
  • Board certified in Internal Medicine
  • No malpractice claims found
  • No sanctions found
  • No board actions found


  • Internal Medicine
  • Geriatric Medicine
  • Preventive Occupational & Environmental Medicine

Board Certifications

  • Internal Medicine
    Accredited by: American Board of Internal Medicine*

Conditions Treated

  • Allergic Rhinitis
  • Arthritis
  • COPD (Chronic Obstructive Pulmonary Disease)
  • Congestive Heart Failure
  • Coronary Artery Disease (CAD)
  • Depression
  • Diabetes
  • Heart Disease
  • Hyperlipidemia
  • Hypertension
  • Obesity
  • Sports Injuries


  • Cardiac Imaging
  • Chest CT (incl. Heart and Lungs)
  • Echocardiography
  • Electrocardiogram (EKG)
  • Immunization
  • Physical Examination
  • Spirometry
  • Urinalysis
  • Vaccination

Background Check

0 Malpractice Claims

No malpractice history found for New York.

0 Sanctions

No sanctions history found for the years that Healthgrades collects data.

0 Board Actions

No board actions found for the years that Healthgrades collects data.


  • State University Of New York / Health Science Center At Stony Brook
    Undergraduate School | Graduated 1980
  • Autonomous University Of Guadalajara / Faculty Of Medicine
    Medical School | Graduated 1983
  • University Of Maryland At Baltimore / Professional Schools
    Medical School | Graduated 1985
  • University Hospital Stony Brook
    Internship Hospital | Completed 1988
  • Veterans Med Center
    Residency Hospital | Completed 1988
  • Dot Certified
    Other Education | Completed 2015
  • Mro Certified
    Other Education | Completed 2015

Awards & Recognition

Awards & Honors
  • Healthgrades Honor Roll
Media & Publications

Dr. Folan has no media or publications listed.

Languages Spoken

  • English
  • Spanish

Memberships & Professional Affiliations

Dr. Folan does not have any memberships or affiliations listed. If you are Dr. Folan and would like to add memberships or affiliations, please update your profile.

Dr. Folan's Reviews

Likelihood of recommending Dr. Folan to family and friends
based on 15 total reviews (4 with comments)
Dr. Folan's Performance
  • Trustworthiness
  • Explains condition(s) well
  • Answers Questions
  • Time well spent
Office & Staff Performance
  • Scheduling
  • Office environment
  • Staff friendliness
  • Average wait time
    16 to 30 minutes
Patient Comments (4)
Central islip |
Always wait at least an hour to be seen. And apparently according to his staff he sees his elderly patients b4 others so they aren't inconvenience.
in Colorado Springs, CO |
Dr. Folan allows his assistant Kristine to issue prescriptions. Kristine Recently prescribed for my recently widowed, 79 year old mother whi has had a heart attack, heart surgery, further heart complications since & high blood pressure ~> all while under Folan's care. My father always did say Folan was a quack. Are they stupid or do they just care more about $$$ than people???
in Hauppauge, NY |
I have been a patient of Dr. Folan for maybe 20 years and to this day trust him to the fullest. His staff as well as himself have helped me thru some very difficult medical situations and always willing to help and advise the best specialists. Have recommended him to several family members of the years and they also continue to see him. Excellent Doctor and would recommend him to all adults. Very thoughtful, courteous and thorough. 5 Star Doctor !
in Stony Brook, NY |
He truly cares about his patients and takes the required time to talk to and help them.
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See our Internal Medicine Specialist at NYU Winthrop Hospital

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Now Accepting New Patients
This provider offers the following appointment availability:
Same Day
Next Day
Dr. Folan accepts 21 insurance carriers
  • Aetna
    Aetna HMO
    Choice Plus POS II
  • Blue Cross Blue Shield
    Blue Card PPO
  • Capital District Physician's Health Plan (CDPHP)
    Capital District Physician's Health Plan (CDPHP) HMO
  • Cigna
    Cigna HMO
    Cigna PPO
    Great West Healthcare-Cigna PPO
    Open Access Plus
  • Commercial Insurance Company
  • Connecticare
    Connecticare HMO
  • EmblemHealth
    Emblem Health
  • Empire Blue Cross Blue Shield
    Empire Blue Cross Blue Shield HMO
    Pathway Enhanced Guided Access
    Prism Blue Priority EPO
  • First Health (Coventry Health Care)
    First Health (Coventry Health Care) PPO
  • Government Employees Health Association (GEHA)
  • Humana
    Choice Care PPO
  • Locals (any local)
  • MagnaCare
    MagnaCare PPO
  • Mail Handlers Benefit Plan (MHBP)
  • Meritain Health
  • MultiPlan
    MultiPlan PPO
    PHCS Network PPO
  • National Elevator
  • Oxford Health Plans
    Freedom Plan
  • POMCO Group
  • UnitedHealthCare
    Choice Plus POS
    Navigate HMO
    Navigate POS
    Options PPO
    United Healthcare
  • WellCare

*Please verify this information when scheduling an appointment.

Hospitals where Dr. Folan has admitting privileges

Saint Catherine of Siena Medical Center
50 Route 25A
Smithtown, NY 11787
View Hospital Profile
Stony Brook University Hospital
101 Nicolls Road
Stony Brook, NY 11794
View Hospital Profile