What patients are saying
Overall rating
3.90
Average wait time
3.20
Bedside manner
4.17
“I wish I could get the surgery done now, but I have to wati for medical reasons. They gave me a cortisone steroid shot which has helped with the pain.”
Mitchell A.March 14, 2026
“Love Dr. K & entire staff @ Patchogue office. Michael Chiarenza the PA is outstanding & very knowledgeable.”
Rosemarie W.February 10, 2026
About Dr. Gus Katsigiorgis
PLEASE NOTE THAT WE DO NOT TREAT THE FOLLOWING: pediatric patients less than 10 years of age, open wounds, complex hand injuries or surgeries, cases with prior recent surgery, spinal surgery, fractures more than 1 week old, compound or complex fractures (open fractures), lacerations, and bites.
Dr. Katsigiorgis was raised in Long Island, New York. He graduated magna cum laude in biology from Long Island University, C.W. Post campus, as part of the honors program. He earned his Doctor of Osteopathic Medicine degree from the New York College of Osteopathic Medicine at the New York Institute of Technology, graduating in the top 5 percent of his class. He completed his internship in orthopedic surgery at Peninsula Hospital Center from 2000 to 2001, where he served as chief intern. He then completed his orthopedic residency at the same hospital, serving as chief resident from 2004 to 2005. Dr. Katsigiorgis is a board-certified orthopedic surgeon who scored 2nd place on the National Orthopedic Board Exam. He is currently appointed chief of orthopedics at Mercy Hospital.
Dr. Katsigiorgis joined Island Musculoskeletal Care in 2005. He performs minimally invasive knee and hip replacements, including shoulder replacements such as reverse total shoulder replacements. He also performs arthroscopic sports surgeries, including anterior cruciate ligament reconstruction and treatment of sports-related shoulder injuries such as rotator cuff repair and instability surgery. He has been a guest lecturer, helping to promote medical knowledge within the medical community.
His hospital affiliations include LIJ Medical Center, North Shore University Hospital in Manhasset, Mercy Medical Center, and LIJ North Shore University Hospital at Valley Stream.
He Board Certified to treat NY State Worker's Compensation injuries of the Neck, Spine, Back, Shoulder, Arm, Elbow Hand, Wrist,Hip. Leg, Knee, Ankle and Foot. He also treats injures due to Care Accidents, (NF) and slip and falls.
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In-network insurances
99% of patients have successfully booked with these insurances
Aetna
BlueCross BlueShield
Cigna
Emblem Health
Medicare
UnitedHealthcare
UnitedHealthcare Oxford
Areas of expertise
This doctor's experience enhances their expertise in similar cases. Below are the conditions or surgeries they treat most frequently.
Knee arthroscopy
Neck pain and spine problems
Joint or tendon inflammation of the finger/wrist/hand
Fracture/dislocation treatment arm/wrist/hand
Arthritis
Rotator cuff injury
Knee arthroscopy
Neck pain and spine problems
Joint or tendon inflammation of the finger/wrist/hand
Fracture/dislocation treatment arm/wrist/hand
Office locations
Dr. Gus Katsigiorgis, DO also offers online video visits for patients
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Education and background
Practice names
Hospital affiliations
- Franklin Hospital
- Huntington Hospital
- Long Island Jewish Medical Center
- Mercy Medical Center
- North Shore University Hospital
- South Shore University Hospital
- Plainview Hospital
Education and training
- Medical School - New York Institute of Technology, New York College of Osteopathic Medicine, Doctor of Osteopathic Medicine
- Peninsula Hospital Center, Residency in Orthopedic Surgery
- Peninsula Hospital Center, Internship in Orthopedic Surgery
Awards and publications
- Magna Cum Laude
Languages spoken
- English
- Greek
Provider's gender
Male
NPI number
1033105564
Patient reviews
All reviews have been submitted by patients after interacting with the practice.
Overall rating
3.90
Wait time
3.20
Bedside manner
4.17
Your trust is our top concern, so providers can't pay to alter or remove reviews. We also don't publish reviews that contain any private patient health information. Learn more here
918 reviews
Most relevant
Love Dr. K & entire staff @ Patchogue office. Michael Chiarenza the PA is outstanding & very knowledgeable.
February 10, 2026Rosemarie W.Verified patient
Took the doctor 2 1/2 hours to see me didn’t even see the right doctor got a referral to another doctor waste of my time?
October 30, 2024Samantha R.Verified patient
There was an easy flow from appointment check in, X-rays and speaking to doctor about concerns as well as X-ray results
July 1, 2024Rose M.Verified patient
Have used this Dr before
Performed knee and elbow surgery
Very satisfied
Staff are great in the Patchogue Office
October 5, 2023Ken K.Verified patient
Very nice Doctor my knee got the attention it needed. I was in some much pain and the doctor knew what to do and he did it.
July 31, 2021Seleta H.Verified patient
Fantastic office. All staff wonderful , of course including Dr. Gus Katsigiorgis!!! Would definitely recommend this practice!
October 11, 2016Initials hidden
Staff was friendly and eager to help. The Doctor was kind and very knowledgeable. He really seemed to know what he was doing.
November 30, 2011HH
GREAT EXPERIENCE WITH DOCTOR GUS FAST TIMT TO GET INJECTIONS IN BOTH KNEES PAIN RELIEVED IN SHORT TIME
October 12, 2023Margaret W.Verified patient
LAST 2 VISITS TAKEN IN LESS THAN 1/2 HOUR
BEST TIME EVER USE TO BE 3-4 HOURS LOTS OF PEOPLE WAITING TO BE SEEN
September 18, 2022Margaret W.Verified patient
1 hour and 37 minute wait after arrival, shortest wait time I've ever had with this DR. They extremely overbook on purpose.
July 29, 2016Lawrence M.Verified patient
Friendly helpful will recommend someone else there. The staff was polite and very helpful.
January 28, 2025Tiffany T.Verified patient
Wait was over 3 hours, offered no help. Vaguely implied it might be my meniscus but offered no treatment plan.. nothing.
July 27, 2020Kalynn P.Verified patient
I had an appointment but it didn't make since because they where not using it. They called based on how you checked in.
July 20, 2020Initials hidden
good experience overall with all people that I was in contact with, all were very helpful to me
September 7, 2024marion S.Verified patient
It was ok. It was a bad impression on me. The waiting are was beyond packed. And with COVID-19 I was in total shocked.
July 16, 2020Toya K.Verified patient
He's great! my whole family has seen him @ one time or another. Everyone says "hi" and were busy. He does good work.
May 7, 2020Laura B.Verified patient
Made an appointment and was seen well over 2 hours later ... in a crowded waiting area ... liked the PA who saw me
April 19, 2021Cynthia Z.Verified patient
Dr. Katsigiorgis was friendly and thorough. It was my first visit and he put me at ease. I will be returning.
September 20, 2021Robert J.Verified patient
The wait time is very very long. Almost over 1h 45 mins!
November 25, 2025Paul Junior P.Verified patient
This was my first time seeing this doctor I felt very comfortable and I know he’s going to help
April 27, 2024Lois K.Verified patient
It was alright. He check whats going and refer an Xray then he told the nurse what to do and give us explanation.
September 3, 2013Steven L.Verified patient
It was a pleasant enough experience but i dont want to return for arthriis. Cancel our aptmt for 9/11
Thank you
August 1, 2012Michelle S.Verified patient
Great Doctor and staff. My son was in pain and the Dr and the technician made him feel comfortable.
thank you
January 30, 2012Geri E.Verified patient
Doctor Gus is very warm and attentive. The staff members were friendly. Very busy office, but that's okay.
June 28, 2014Suzana U.Verified patient
Went in, got my procedure done.. booked a follow up and it was as simple as that!
September 10, 2024Initials hidden
We discussed all options available. This was my first time seeing him. His examination was thorough ....
April 1, 2021Adele S.Verified patient
A very intelligent Doctor. Very friendly and got to the point of my problem. I was very satisfied overall.
November 30, 2011DN
They canceled the appointment because doctor was not available. They did not call me
June 6, 2024Mugurel T.Verified patient
It was okay. It was overcrowded, over boooked. The only good thing was I got some tests done right away.
May 10, 2013Initials hidden
This Doctor seemed to understand my problem. He showed me how to hold my arm and the pain subsided a lot.
November 30, 2011IM
Very friendly professional and knowledgeable staff and understanding the importance of my issues.
November 21, 2022Mark C.Verified patient
4 hours wait for a 10 minute talk with a doctor. Not acceptable. Secretaries in bad moods. Not again.
More than 1 year agoInitials hidden
Saw the PA Gio he was cool but my physical therapy tech Jo was amazing would definitely recommend.
January 5, 2022Rahsaan B.Verified patient
He was wonderful. Only complaints are lack of parking/seating, but could have been the time of day...
January 18, 2012Initials hidden
i know him for so long time. he knows his stuff and i will not change my orthopedic for the world
April 7, 2018Bari C.Verified patient
Great doc! Front staff could be a little more better but other than that my visit was awesome.
October 25, 2017Franklin L.Verified patient
First time visit. Staff was great. Appropriate waiting time. Doctor was very pleasant.
January 19, 2023Andrew S.Verified patient
Everyone in his office was friendly and he was very professional and explained my injury to me.
July 18, 2012Elissa K.Verified patient
I love the doctor he is efficient been going to him for years wouldn't go anywhere else.
July 26, 2016Petrina C.Verified patient
good dr. but his office is crowded because appointment s are triple booked like a factory
May 5, 2014Initials hidden
Excellent Dr . Listens and clearly explain issues and options, I highly recommend him.
More than 1 year agoClaudia B.Verified patient
Fairly quick and straight forward. I would definitely visit again for any future needs
February 3, 2021Initials hidden
Great staff and doctors... Parking lot is small, I had to park across the street.
More than 1 year agoEdward T.Verified patient
too crowded no space waited more than 2 hours to be seen after pain not organized
November 14, 2020Sumy A.Verified patient
The P A was able to listen and answer my questions clearly . He was not rushed!
October 6, 2021Yolette S.Verified patient
Yes I would recommend and they took own X-ray and staff was helpful
October 31, 2023Luzmaria S.Verified patient
Took 45 minutes to get the clipboard to put my insurance information down. Avoid
October 19, 2015James M.Verified patient
Dr. Kats is down-to-Earth and professional and listens to my needs and concerns.
March 31, 2014Initials hidden
It was awesome having X-Rays accessible on site . PA Mike was super helpful !
More than 1 year agoInitials hidden
VERY NICE BUT NEEDS MAKE IMPROVEMENTS ON WAITING ROOM AND APPEARANCE OF OFFICE
More than 1 year agoInitials hidden
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How soon can I make an appointment with Dr. Gus Katsigiorgis?
Generally, Dr. Gus Katsigiorgis has appointments available on Zocdoc within 1 week. You can see Dr. Katsigiorgis's earliest availability on Zocdoc and make an appointment online.
Is Dr. Gus Katsigiorgis accepting new patients?
Dr. Gus Katsigiorgis generally accepts new patients on Zocdoc. You can see Dr. Katsigiorgis's earliest availability on Zocdoc and schedule an appointment online.
Does Dr. Gus Katsigiorgis accept my insurance?
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Can I make an appointment with Dr. Gus Katsigiorgis online?
Yes, you can make an appointment online with Dr. Katsigiorgis using Zocdoc. It’s simple, secure, and free.
Which hospital is Dr. Gus Katsigiorgis affiliated with?
Dr. Gus Katsigiorgis is affiliated with Franklin Hospital, Huntington Hospital, and Long Island Jewish Medical Center.
What practice does Dr. Gus Katsigiorgis work with?
Dr. Gus Katsigiorgis works with Island Musculoskeletal Care.
Where is Dr. Gus Katsigiorgis's office located?
Dr. Gus Katsigiorgis has 8 office locations, including in Brooklyn, Richmond Hill, Bronx, Valley Stream, Deer Park, Patchogue, Shirley, and Smyrna, view full addresses on Dr. Katsigiorgis's profile.
What are common reasons for patients to see Dr. Gus Katsigiorgis?
Dr. Gus Katsigiorgis frequently sees patients for Arthritis, Hand Problems, Knee Problems, Orthopedic Consultation, and Sports Injury. You can see other visit reasons for Dr. Gus Katsigiorgis on their profile.
What languages does Dr. Gus Katsigiorgis speak?
Dr. Gus Katsigiorgis speaks English and Greek.
How do patients rate Dr. Gus Katsigiorgis in reviews?
918 patients have reviewed Dr. Gus Katsigiorgis. The overall rating for this doctor is 3.9/5. They have a 4.17/5 rating for bedside manner and a 3.2/5 rating for wait time. You can read individual reviews and ratings on their profile.