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Gary Gecelter

Gary Gecelter, MD

Surgical OncologyGeneral Surgery

Catholic Health Physician Partners
Accepting New Patients

Highlights

Languages

  • English

Gender

Male

About Gary Gecelter

Gary R. Gecelter, M.D., FACS, is Chairman of the Department of Surgery at St. Francis and oversees the Hospital's growing non-cardiac surgical program, which includes advanced technology and minimally-invasive techniques in esophageal, pancreaticobiliary, colon, urological, ear, nose and throat and orthopedic surgery. Dr. Gecelter served as Vice-Chairman of the Department of Surgery at the North Shore Long Island Jewish Health System before joining St. Francis in 2008. Dr. Gecelter is a founding member of the Minimally Invasive Fellowship Council and a member of numerous national and international societies, including the Society of Surgical Oncology and Society for Surgery of the Alimentary Tract. He is also a member of the American College of Gastroenterology and has been invited to lecture throughout the world, including the United Kingdom, South Africa, Chile, Argentina and Colombia.

Locations

  1. Surgery, Ambulatory Care at East Hills
  2. Surgery, Smithtown
  3. Surgery, Ambulatory Care at Commack

Expertise

Education

  • Fellowship: University of Witwatersrand, Hepatobiliary Surger, 1993
  • Residency: University of Witwatersrand, Surgery, 1990
  • Internship: Johannesburgh Hospital, Internal Medicine, 1982
  • Internship: Johannesburgh Hospital, Surgery, 1982
  • Medical School: University of Witwatersrand, 1981

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
  • 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 1199 Emp SJH SEIU
  • Local 1199 National Benefit Fund
  • 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
  • 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

Ratings & Reviews

4.9 out of 5

110 ratings, 11 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 11/23/2025

    Great !

    5 out of 5 stars
    Reviewed on 11/20/2025

    Dr. Gecelter is considerate and very professional. He discussed my options, risks - benefits with me and reached out to my oncologist as well. I not only would recommend him, I would see him again if NEEDED.

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

    Gary & [...] are incredible.

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

    Dr. Gecelter brought to my attention that there was another specialist that I forgot about. The PA gave me card of the Dr. To be seen.

    5 out of 5 stars
    Reviewed on 8/29/2025

    Every question was answered throughly.

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

    Dr Gecelter met the world class expectations I went in with I shared a personal story about seeing one of his videos

    5 out of 5 stars
    Reviewed on 7/18/2025

    Dr. Gecelter was wonderful - helpful & understanding.

    5 out of 5 stars
    Reviewed on 7/9/2025

    Very good experience.

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

    Explained everything well good experience

    5 out of 5 stars
    Reviewed on 5/27/2025

    Very professional and caring

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

    So far - perfect!