What patients are saying
Overall rating
4.87
Average wait time
4.30
Bedside manner
4.83
“Joan was friendly and bent over backwards to resolve an insurance glitch. Doctor is always very busy. However pleasant and efficient ”
ELISE H.Less than 3 months ago
“The front desk and the women that took me back were both very pleasant. Doctor was knowledgeable and made me feel comfortable. Yes I would book again if needed”
Mary S.November 25, 2025
About Dr. Fredric Kleinbart
Fredric Kleinbart, MD, is a board-certified orthopaedic surgeon working closely with patients at Mercer-Bucks Orthopaedics, with offices in Hamilton, Lawrenceville, and Princeton, New Jersey, and Langhorne, Pennsylvania. He was the former director of sports medicine and was an active member at Hahnemann University Hospital in Philadelphia, Pennsylvania. Additionally, he is an associate professor of orthopaedic surgery at Drexel University College of Medicine. He has a Certificate of Added Qualification in Sports Medicine, and for the last five years, he has been an associate master instructor of arthroscopy at the Orthopaedic Learning Center, which allows him to teach arthroscopies nationally. A graduate of the University of Pennsylvania School of Medicine, Dr. Kleinbart completed his residency training in orthopaedic surgery at Kingsbrook Jewish- Beth Israel Medical Centers and his sports medicine fellowship at Temple University Hospital. Dr. Kleinbart’s USA Olympic experience includes serving as the orthopaedic surgeon at the San Diego Olympic training center, as a ringside physician for USA Boxing, and a ringside physician for the Olympic boxing trials. He was the head orthopaedic surgeon and co-team physician for Drexel University. He was also the orthopaedic consultant for the American Repertory Ballet and the Princeton Ballet School and has a long history as a team physician for various collegiate and high school teams. Dr. Kleinbart has been instrumental in creating specialty sports clinics, including the Arts Medicine Center, the Women’s Sports Medicine Center, and the Pediatric Sports Medicine clinics at Hahnemann University Hospital and the Drexel University College of Medicine. Dr. Kleinbart established the Hahnemann University Hospital and Drexel Sports Medicine Arthroscopy lab and is an associate master instructor for various national arthroscopy courses. Currently, he is the Medical Director at Mercer County Surgery Center.
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In-network insurances
99% of patients have successfully booked with these insurances
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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
Inflammation or injury of the tendons or ligaments in the leg
Pain in joint
Arthritis
Lower back pain
Shoulder arthroscopy/rotator cuff repair
Knee arthroscopy
Inflammation or injury of the tendons or ligaments in the leg
Pain in joint
Arthritis
Office locations
1 of 4
Education and background
Practice names
Board certifications
- American Board of Orthopaedic Surgery
- Orthopaedic Sports Medicine (American Board of Orthopaedic Surgery)
Education and training
- Medical School - University of Pennsylvania, Doctor of Medicine
- Temple University Hospital, Fellowship in Sports Medicine
- Kingsbrook Jewish Medical Center, Residency in Orthopedic Surgery
- Beth Israel Medical Center, Residency in Orthopedic Surgery
Languages spoken
- English
Provider's gender
Male
NPI number
1396714747
Patient reviews
All reviews have been submitted by patients after interacting with the practice.
Overall rating
4.87
Wait time
4.30
Bedside manner
4.83
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
150 reviews
Most relevant
Straight shooter. Thoroughly explained my condition and addressed ways to ameliorate the discomfort as well as reduce it.
August 13, 2024Linda G.Verified patient
Dr is amazing and one of the best ever!
He listens and explains your complaints
Definitely recommend Dr Kleinbart !!
August 13, 2024Erica W.Verified patient
THe experience was good overall. However, there was a long wait before I could be seen.
August 25, 2025Manilal G.Verified patient
Dr. Kleinbart is great. He listens and does whatever is needed to help
February 13, 2026Billie S.Verified patient
Wait time was a little long, but doctor did apologize. Doctor explained my condition and treatment plan thoroughly.
More than 1 year agoInitials hidden
Dr is highly knowledgeable and courteous
Answere all my questions
In two words : Super Doctor
November 12, 2024Shaam S.Verified patient
I waited more than thirty minutes to be seen. I feel that is a long time to be seen.
Less than 1 year agoInitials hidden
Appointment was 1hour and 1/2 late.
Office is definitely overwhelmed. Still assessing
January 12, 2025Initials hidden
As always, I had an outstanding experience at the Langhorne Mercer-Bucks Orthopedics office.
July 17, 2024Susan M.Verified patient
Good exprience will return. Always understands my issue and gives the best advice
December 20, 2024Chicquita L.Verified patient
Very professional and thorough explanations with diagnosis and treatment.
August 6, 2024Joana A.Verified patient
Great doctor. Good admin staff. And fine medical support staff.
More than 1 year agoInitials hidden
Dr. K stays on top of current studies, treatments and outcomes.
October 15, 2024Barbara F.Verified patient
Dr Kleinbart is great. Very friendly & to the point.
April 9, 2025Michele W.Verified patient
The doctor had extreme knowledge with that being said he spoke into his phone recorder most of the visit, spoke fast and not in lamens terms. When he left the room I thought he was coming back to sum up the visit be he did not.
March 4, 2026Initials hidden
Joan was friendly and bent over backwards to resolve an insurance glitch. Doctor is always very busy. However pleasant and efficient
Less than 3 months agoELISE H.Verified patient
The front desk and the women that took me back were both very pleasant. Doctor was knowledgeable and made me feel comfortable. Yes I would book again if needed
November 25, 2025Mary S.Verified patient
I was listened to and the diagnosis was spot on.
November 6, 2025Roger M.Verified patient
Dr. Kleinbart and his staff are excellent. I used them before, but I moved about an hour away and I have not been happy since so I went back and he was just as nice as ever listen to me and talk to me. He’s the best.!!!
October 29, 2025Joanne L.Verified patient
Dr. Kleinbart and Denise were very clear communicators and I left well informed regarding my shoulder. I recommend Dr. Kleinbart who is down to earth and clear spoken.
August 15, 2025Jesse R.Verified patient
Dr. Kleinbart is an excellent physician and surgeon who takes every case very seriously. He educates patients and provides options. I feel in good hands with this doctor
July 30, 2025Francia R.Verified patient
I would say patient should be aware of x-ray needs for appointment with doc since if you have recent x-ray find a way to get them to the doc otherwise you need to get a whole new set day of appointment.
June 27, 2025Michael D.Verified patient
Friendly staff, willing to go extra mile.
May 2, 2025Atul G.Verified patient
Highly recommended 10 out of 10.
May 1, 2025Kevin J.Verified patient
10/10
April 3, 2025Jaqae A.Verified patient
Dr Kleinbart is very professional & personable in addition to being realistic regarding a patient's condition and treatment options & expectations. Both my wife and I have had a great experience with Dr Kleinbart over the last 4 years.
March 26, 2025Ralph G.Verified patient
My appointment seemed rushed. The doctor was too busy & didn’t seem to have enough time for me to really talk to him to explain things. He said he was running behind when he came in , so I knew I wasn’t going to be able to talk to him about anything that I was really feeling or how I was dealing with my pain.
I know he may have thought I put off doing anything after I hurt myself, but I didn’t realize how bad my injury was until much later & the pain got worse.
He may not have understood me without actually talking to me.
Too quick in & out. I guess that’s how insurance is these days
March 12, 2025Linda C.Verified patient
Dr. Kleinbart was awesome as was his assistant (not sure if this is the proper term) Holly.
Holly took the time to review my information and to make any necessary corrections. She said that the doctor would be in shortly and she was spot on...maybe 3 minutes.
Dr. Kleinbart quickly assessed my case, ordered some x-rays and then patiently (no pun intended) discussed possible treatment plans...from P/T to surgery.
I know that my follow-up in a month will be equally fantastic.
February 20, 2025STEVEN R.Verified patient
This was my first visit with Dr. Kleinbart. He was very pleasant, very knowledgeable about the reason for my visit, and made me a return appointment and gave me a script.
I would recomment him highly.
January 22, 2025Elizabeth B.Verified patient
Exceptional Doc
thorough, honest and caring
January 3, 2025Helen G.Verified patient
The office staff was pleasant and efficient. I arrived early and still did not have to wait long. They were able to complete an X-ray during my visit. Dr. Kleinbart was friendly but rushed through my visit. I was not able to ask questions about my condition or his treatment recommendations. He left the office to give information to the nurses and never returned. It was the nurse who came in to give me paperwork that informed me that my visit was over.
November 22, 2024Initials hidden
Dr kleinbart is an excellent orthopedic surgeon. He spends time with you, listens to his patients and goes over all treatment options that are in best interest of his patients. I highly recommend MBO and Dr Kleinbart for all orthopedic needs.
November 7, 2024Linda G.Verified patient
Knowledgeable, friendly, and kind staff
October 22, 2024Honey W.Verified patient
The office with the doctor great
October 9, 2024Francisco S.Verified patient
A likeable man who gave me all the options available for my shoulder. I have to go back in a few weeks & to physical therapy. Good visit.
August 16, 2024Virginia S.Verified patient
love him slayed the
August 15, 2024Elinet M.Verified patient
Everyone was great
August 1, 2024Muhammad Fahad K.Verified patient
I felt accepted and welcomed at this medical office. My appointment was done with a high level of professionalism, friendliness, and care for my needs, from the time I walked I into the office until my appointment was completed.
July 18, 2024Gaya K.Verified patient
The doctor is patient and knowledgeable
July 8, 2024Nancy C.Verified patient
He was professional, clearly explained and answered all my questions as we looked at the X-ray together and as a nurse, I learned a lot from him in that time frame for which I’m grateful.
June 21, 2024Gloria B.Verified patient
March 24, 2026Baquasia H.Verified patient
Less than 1 month agoInitials hidden
March 6, 2026Lawrence W.Verified patient
Less than 6 months agoInitials hidden
December 10, 2025Theodore O.Verified patient
November 3, 2025Paul C.Verified patient
Less than 6 months agoInitials hidden
Less than 6 months agoInitials hidden
Less than 1 year agoInitials hidden
September 10, 2025Joseph T.Verified patient
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How soon can I make an appointment with Dr. Fredric Kleinbart?
Generally, Dr. Fredric Kleinbart has appointments available on Zocdoc within 1 week. You can see Dr. Kleinbart's earliest availability on Zocdoc and make an appointment online.
Is Dr. Fredric Kleinbart accepting new patients?
Dr. Fredric Kleinbart generally accepts new patients on Zocdoc. You can see Dr. Kleinbart's earliest availability on Zocdoc and schedule an appointment online.
Does Dr. Fredric Kleinbart accept my insurance?
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Can I make an appointment with Dr. Fredric Kleinbart online?
Yes, you can make an appointment online with Dr. Kleinbart using Zocdoc. It’s simple, secure, and free.
What practice does Dr. Fredric Kleinbart work with?
Dr. Fredric Kleinbart works with Mercer-Bucks Orthopedics.
Where is Dr. Fredric Kleinbart's office located?
Dr. Fredric Kleinbart has 4 office locations, including in Hamilton, Langhorne, Lawrenceville, and Princeton, view full addresses on Dr. Kleinbart's profile.
Which board certifications does Dr. Fredric Kleinbart have?
Dr. Fredric Kleinbart is certified by American Board of Orthopaedic Surgery and Orthopaedic Sports Medicine (American Board of Orthopaedic Surgery).
What are common reasons for patients to see Dr. Fredric Kleinbart?
Dr. Fredric Kleinbart frequently sees patients for Arthritis, Orthopedic Consultation, Physical Therapy Consultation, Sports Injury, and X-ray. You can see other visit reasons for Dr. Fredric Kleinbart on their profile.
What languages does Dr. Fredric Kleinbart speak?
Dr. Fredric Kleinbart speaks English.
How do patients rate Dr. Fredric Kleinbart in reviews?
150 patients have reviewed Dr. Fredric Kleinbart. The overall rating for this doctor is 4.87/5. They have a 4.83/5 rating for bedside manner and a 4.3/5 rating for wait time. You can read individual reviews and ratings on their profile.