Loading Complete
George John Koullias

George John Koullias, MD

4.998 ratings, 11 reviews

Vascular Surgery

Catholic Health Physician Partners
Accepting New Patients

Highlights

Languages

  • German
  • Greek
  • English

Gender

Male

Locations

  1. Diabetic and Wound Healing Center
  2. Vascular Surgery, Smithtown

Expertise

Education

  • Fellowship: Stony Brook University Hospital, Vascular Surgery, 2013
  • Residency: Yale New Haven Hospital, Cardiothoracic Surgery, 2003
  • Residency: Pennsylvania State University, General Surgery, 2001
  • Residency: St. Mary's Hospital, Surgery, 1998
  • Residency: Sound Shore Medical Center of Westchester, General Surgery, 1997
  • Medical School: Aristotle University of Thessaloniki Faculty of Dentistry, 1991

Board Certifications

  • Vascular Surgery: American Board of Surgery, 2016

Insurance

Before your appointment, please confirm with your insurance company that this provider accepts your insurance.
Search plans
  • Aetna
  • Aetna HMO
  • Aetna Medicare PPO
  • Affinity
  • Affinity Essential
  • Affinity Exchange
  • Affinity Medicaid
  • Affinity 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
  • Centers Plan For Health Living
  • Centers Plan For Healthy Living
  • 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
  • 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 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 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
  • Longevity
  • 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
  • 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
  • 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

4.9 out of 5

98 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 1/17/2026

    The doctor and a technician and the rest of the staff were very helpful and easy to understand

    5 out of 5 stars
    Reviewed on 12/4/2025

    The doctor was one of the best I have been to. He told every thing I had to do to ensure my good health.

    5 out of 5 stars
    Reviewed on 10/30/2025

    Dr Koullias will always take the time to listen to you and advise you in the knowledgeable way.

    5 out of 5 stars
    Reviewed on 10/23/2025

    Dr. George Koullias is a wonderful doctor. I am very happy with him and his staff!

    5 out of 5 stars
    Reviewed on 9/27/2025

    My Primary care provider was explaining everything in details and my health was his main concern, thank you Dr. George John Koullias

    5 out of 5 stars
    Reviewed on 8/2/2025

    Dr. Koullias was very professional and helpful. He even helped me to schedule my ultrasound appointment. I am very pleased with my visit.

    5 out of 5 stars
    Reviewed on 7/12/2025

    Dr. Koullias saved my mom's leg with bypass His attentiveness and professionalism are unmatched. Caring, empathetic and skilled surgeon.

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

    Dr. Koullias is a great doctor!

    5 out of 5 stars
    Reviewed on 7/2/2025

    NP assisted with taking off bandages is doing an excellent job. Dr. Koullias is exceptional. Never experienced a dr. to observe & close up the wound himself.

    5 out of 5 stars
    Reviewed on 6/30/2025

    Good experience.

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

    Dr. Koullias was gentle, and he explained next steps pertaining to my care. He reviewed medical records from other doctors, answered all my questions, and referred me to another physician in the network, so I could have a sonogram I made a follow-up visit with Dr. Koullias two weeks after my initial visit.