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John Francis Folan

John Francis Folan, MD

Internal Medicine

Catholic Health Physician Partners
Accepting New Patients
Video Visits
Need help scheduling? Call 631-864-4499

Highlights

Languages

  • Spanish
  • English

Gender

Male

Locations

  1. Internal and Family Medicine, Ambulatory Care at Commack

Expertise

Education

  • Internship/Residency: SUNY STONY BROOK HLTH SCI CENTER, Medicine, 1987
  • Medical School: Universidad Autonoma de Guadalajara/Facultad de Medicina, Medicine, 1984

Insurance

Before your appointment, please confirm with your insurance company that this provider accepts your insurance.
Search plans
  • Aetna
  • Aetna Medicare PPO
  • Affinity
  • Affinity Essential
  • Affinity Exchange
  • Affinity Medicaid
  • Affinity Medicare
  • Agewell
  • Agewell Medicare
  • American Plan Administrators PPO
  • Anthem
  • Anthem Child Health Plus
  • Anthem Essential Plan 1 & 2
  • Anthem Essential Plan 3 & 4
  • Anthem Medicaid and Individual
  • Anthem Medicare
  • Blue Cross Mcd Hmo
  • Blue Cross Medicaid
  • Centivo
  • Cigna
  • Cigna Medicare
  • Coventry Health Care
  • Elderplan
  • Elderplan Medicaid
  • Emblem
  • Emblem HIP
  • Emblem Medicaid
  • Emblem Medicare
  • Fidelis
  • Fidelis Health Exchange
  • Fidelis Medicaid
  • Fidelis Medicare
  • First Health
  • GHI
  • GHI CBP NY City Employee
  • GHI CBP PPO EPO
  • GHI HMO
  • GHI Medicare Choice PPO/Value Options
  • GHI NYS NYC Value Options
  • GHI PPO EPO
  • HCP Child Health Plus
  • Health First
  • HEALTH FIRST EP 3&4
  • Health First Medicaid
  • Health First Medicaid HARP EP 3&4
  • Health First Medicare
  • HEALTH FIRST RISK EP 3&4 ALT
  • Health First Risk Medicaid HARP EP 3&4 Alternate Plan
  • Healthsmart Benefit Solutions
  • HIP
  • HIP Child Health Plus
  • HIP Hcare Partners Essent Pl 1&2
  • HIP Hcare Partners Essential 3&4
  • HIP Hcare Partners HMO
  • HIP Hcare Partners Medicaid
  • HIP Hcare Partners Medicare HMO
  • HIP Hlth Essential Pl 1 & 2
  • HIP Hlth Essential Pl 3&4
  • HIP HMO POS
  • HIP Medicaid
  • HIP Medicare HMO
  • HIP Medicare PPO
  • HIP NY City HMO
  • HIP PPO EPO
  • HIP Somos Child Health Plus
  • HIP Somos Essential Plan 1&2
  • HIP Somos Essential Plan 3&4
  • HIP Somos Medicaid/HARP
  • Humana
  • Humana Medicare
  • Local
  • Local 1 Bricklayers Magnacare
  • Local 1102 Magna
  • Local 1205
  • Local 1298 Magna
  • Local 138 Operating Engineers Magna
  • Local 1500
  • Local 1964
  • Local 210 Retiree Grp Magna
  • Local 210 Unity Welfare Fund
  • Local 25 Ibew Magna
  • Local 272 Welfare Fund Magna
  • Local 29 Blasters & Drillers & Minors
  • Local 3 Magna
  • Local 30 Trust Fund Engineers Magna
  • Local 338 Magna
  • Local 342 50 Magna
  • Local 342 Insurance Trust Magna
  • Local 361 Magna Care
  • Local 381 Magna
  • Local 40 Iron Workers
  • Local 463 Health Fund
  • Local 522
  • Local 66 Magna
  • Local 6A Cement And Concrete
  • Local 802 Musicians
  • Local 803 Ibt Health And Welfare Fund Inc.
  • Local 804
  • Local 806 Bridge Painters - Alicare
  • Local 810
  • Local 810 Union Wire Metal
  • Local 812 Magna
  • Local 888 Magna
  • Magna Direct Plus
  • Magna Preferred PPO
  • Medicaid
  • Medicaid Out Of State
  • Medicare
  • Medicare Railroad
  • Meritain Health
  • Meritain Health Aetna PPO
  • Molina
  • Molina Exchange
  • Molina Medicaid
  • Multiplan
  • Optum Health/Blue Cross
  • Oscar
  • Oscar Health Exchange
  • Other Medicaid
  • Other Medicare
  • Oxford
  • Oxford Bh
  • Oxford Medicare
  • Partners Health Plan
  • Partners Health Plan Medicare
  • Secure Horizon Mcr Complete PPO
  • Three Rivers
  • Three Rivers Provider Network
  • UMR
  • UMR UHC Salt Lake City
  • United HC Choice Plus POS
  • United HC Community Child Health Plus
  • United HC Community Medicaid
  • United HC Essential Pl 1 & 2
  • United HC Essential Pl 3&4
  • United HC Exchange
  • United HC HMO POS
  • United HC Medicare HMO
  • United HC Medicare PPO
  • United HC Narrow Network
  • United Hc Nexus ACO R
  • United HC NexusACO OA
  • United HC PPO
  • United HC PPO Empire Plan
  • United HC PPO EPO Indemnity
  • United HC Speech
  • United Health Plus PPO
  • United Healthcare
  • United Healthcare Medicaid
  • United Healthcare Medicare
  • United Healthcare Mpn
  • VNS Choice
  • Vns Choice Medicare Replacement
  • Wellcare
  • Wellcare Medicaid
  • Wellcare Medicare
  • World Trade Ctr Fund

Ratings & Reviews

4.8 out of 5

129 ratings, 25 reviews

The Patient Satisfaction Rating is an average of all responses to the care provider related questions shown below from our survey. Patients that are treated in outpatient or hospital environments may receive different surveys, and the volume of responses will vary by question.

Provider showed concern
Provider explained things clearly
Provider included you in decisions
Provider discussed treatment options
Likelihood of recommending this provider
Search reviews
    5 out of 5 stars
    Reviewed on 12/28/2025

    Great doctor

    5 out of 5 stars
    Reviewed on 11/17/2025

    My prior primary care physician unfortunately passed away, and I has trouble finding someone like her and finally I found Dr Folan it's like winning the lotto. Health is not something we should take lightly, and Dr Folan is knowledgeable, caring and loves what he does.

    5 out of 5 stars
    Reviewed on 11/15/2025

    Dr. Folan is very professional and friendly . Knowledgeable and listens to you and gives choices and if you don't like his ideas he will go the way you're comfortable.

    5 out of 5 stars
    Reviewed on 11/8/2025

    Dr. Folan is the best.

    5 out of 5 stars
    Reviewed on 10/29/2025

    Dr. Folan is always on the cutting edge of his medical practice. He has been my PCP since 1988.

    5 out of 5 stars
    Reviewed on 10/22/2025

    I was pleased with the attention.

    5 out of 5 stars
    Reviewed on 10/6/2025

    Dr Folan is brilliant and is great with everyone around him especially his patients.

    5 out of 5 stars
    Reviewed on 9/12/2025

    Dr. Folan is great n we have known each other for a long while. He always listens to my concerns n we always have great conversations and laughs

    5 out of 5 stars
    Reviewed on 9/10/2025

    Good.

    5 out of 5 stars
    Reviewed on 9/4/2025

    Very good experience with Dr Folan

    5 out of 5 stars
    Reviewed on 9/1/2025

    Overall great experience

    5 out of 5 stars
    Reviewed on 8/7/2025

    Dr. Folan is amazing recommend him to all who ask about my care.

    5 out of 5 stars
    Reviewed on 7/6/2025

    Excellent experience . Dr. Folan was very attentive listening to my concerns. With the information I provided he immediately started to look into testing to diagnose my problem.

    5 out of 5 stars
    Reviewed on 6/29/2025

    Good

    5 out of 5 stars
    Reviewed on 6/22/2025

    My doctor seems to listen and is concerned about your health. But he's also human caring about my life

    5 out of 5 stars
    Reviewed on 6/15/2025

    I've already recommended the service.

    5 out of 5 stars
    Reviewed on 6/8/2025

    Helpful

    5 out of 5 stars
    Reviewed on 6/2/2025

    They were excellent

    5 out of 5 stars
    Reviewed on 5/26/2025

    Dr Folan went above and beyond to assist in my preparation for surgery

    5 out of 5 stars
    Reviewed on 5/24/2025

    Very pleased with the visit.

    5 out of 5 stars
    Reviewed on 5/19/2025

    Exam was very thorough and the knowledge and explanation of treatment was explained clearly.

    5 out of 5 stars
    Reviewed on 5/3/2025

    Kudos

    5 out of 5 stars
    Reviewed on 5/2/2025

    CARING ABOVE & BEYOND.

    5 out of 5 stars
    Reviewed on 4/19/2025

    Dr. Folan is great and understanding

    5 out of 5 stars
    Reviewed on 4/16/2025

    Dr. Folan was terrific!