Loading Complete
Leon Kogan

Leon Kogan, MD

Gastroenterology

Catholic Health Physician Partners
Accepting New Patients
Need help scheduling? Call 631-321-6400

Highlights

Languages

  • Russian
  • English

Gender

Male

Locations

  1. Gastroenterology, Babylon

Expertise

Education

  • Fellowship: New York Methodist Hospital, Gastroenterology, 2009
  • Residency: New York Methodist Hospital, Internal Medicine, 2006
  • Medical School: Ross University- School of Medicine, 2002

Board Certifications

  • Gastroenterology: American Board of Internal Medicine, 2009

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
  • Beechstreet
  • 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

225 ratings, 23 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 1/8/2026

    I recommend it 100%

    5 out of 5 stars
    Reviewed on 12/25/2025

    Dr. Kogan [...] were both excellent and gave me a full assessment of my medical issues and what needed to be done.

    5 out of 5 stars
    Reviewed on 12/19/2025

    Dr Kogan is the best!

    5 out of 5 stars
    Reviewed on 12/6/2025

    Dr. Leonid Kogan is top notch. He Explained everything to me. What the procedure was that he did, what he found, what he removed and what to look forward to for the next year and when to schedule my next follow up. Very pleasant and knowledgeable. Thank you.

    5 out of 5 stars
    Reviewed on 11/21/2025

    Great doctor start to finish for the treatment of my stomach ulcers;very skilled, helpful and professional.

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

    Dr. Kogan was knowledgeable, professional and understanding of my issues,

    5 out of 5 stars
    Reviewed on 11/2/2025

    Dr Kogan is a competent and caring physician.

    5 out of 5 stars
    Reviewed on 10/25/2025

    Kind demeanor and disposition.

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

    Dr. Kogan was very helpful and informative about my upcoming medical procedure. He answered all my questions and some I didn't even think of. I feel comfortable about my upcoming procedure.

    5 out of 5 stars
    Reviewed on 10/12/2025

    I felt very comfortable and I did not feel rushed, which is a big deal

  • No RatingReviewed on 9/29/2025

    Good experience

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

    Exellent

    5 out of 5 stars
    Reviewed on 8/22/2025

    Did see another Dr. [...] Who is GREAT. When started at this office. He was out sick. Had issues with health. So I started seeing Dr. Kogan. Dr. Kogan is very pleasant and takes time to explain and listens.

    5 out of 5 stars
    Reviewed on 8/20/2025

    Very well

    5 out of 5 stars
    Reviewed on 8/15/2025

    Dr Kogan explained all of the options to my medical issues. He listens attentively to my concerns

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

    Eye contact and demeanor were very assuring

    5 out of 5 stars
    Reviewed on 6/26/2025

    Dr. Kogan was amazing he was the first doctor that took my stomach problems seriously. I would highly recommend him to my friends and family

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

    Love Dr Kogan. Always mindful,informative and supportive

    5 out of 5 stars
    Reviewed on 5/14/2025

    Good l recomended

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

    Doctor was very good

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

    Dr Kogan was attentive to my concerns and answered all my questions.

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

    Thank you very much

    5 out of 5 stars
    Reviewed on 4/24/2025

    Dr. Kogan was excellent. He listens and very pleasant.