About

Best Doctors in America

Dr. Ali Khoynezhad is an internationally recognized leader in open, hybrid and endovascular aortic surgery and minimal-invasive atrial fibrillation procedures.  He is Medical Director of Cardiovascular Surgery at MemorialCare Heart & Vascular Institute at Long Beach Medical Center, Director of Aortic and Arrhythmia Surgery at MemorialCare Heart & Vascular Institute. Prior to joining MemorialCare, Dr. Khoynezhad was Director of Aortic Surgery and Co-Director of Atrial Fibrillation Program at Cedars-Sinai Medical Center and Professor of Surgery at the David Geffen School of Medicine at UCLA. As a board-certified cardiovascular surgeon, he performs all aspects of heart surgery including bypass operations and complex valve repair and replacements. He is an active industry consult and physician trainer, having trained over 550 surgeons and interventionalists in abdominal, thoracic endovascular aortic repair and atrial fibrillation procedures. Dr. Khoynezhad has been the principal investigator for 20 industry-sponsored clinical trials involving current and future generations of aortic stent grafts and cardiac devices, while taking the national and international principle investigator role in three clinical trials. Dr Khoynezhad’s research findings have been published in 245 peer-reviewed medical journals, abstracts and book chapters, and his discoveries have resulted in many inventions and patents including percutaneous Endo-Bentall procedure and valve-in-valve TAVR for mechanical heart valves.

Offering effective symptom relief and life-saving operations to his patients, gives Dr. Khoynezhad the greatest satisfaction in his professional life.
 

Seeing my patients and their families at follow-up visits is very rewarding…it literally charges my batteries. The stress of open-heart surgery can be overwhelming for my patients and their families. I provide patient-centered, high-quality care and spend a lot of time to explain procedures in detail. My patients can always count on me to be their advocate and supporter.

Dr. Ali Khoynezhad

After earning his bachelor’s and medical degrees from the University of Cologne College of Medicine in Germany, Dr. Khoynezhad completed an internship in general surgery at Wake Forest University Baptist Medical Center in Winston-Salem, North Carolina. He completed his residency in general surgery at the North Shore University-Long Island Jewish Medical Center, Albert Einstein College of Medicine in New Hyde Park, New York. He also performed a cardiothoracic surgery residency at Montefiore Medical Center Affiliated Hospitals, Albert Einstein College of Medicine in the Bronx, a minimally-invasive cardiac surgery fellowship at Lenox Hill Hospital, and a vascular and endovascular surgery fellowship at Harbor-UCLA Medical Center, Torrance, California. 

In his free time, he enjoys time with his family and jogging, tennis, Pilates, chess, classical and rock music and fast cars.

As a specialist, Dr. Khoynezhad may not be selected as a primary care physician. Accepts patients age 18 and over

Languages

English, German, Persian, Spanish

Provider Specialty

Cardiothoracic - Thoracic Surgery, Surgery - Cardiothoracic, Surgery - General

Education

Medical School

University of Cologne, Faculty of Medicine - Germany

1996

Residency Program - Cardiothoracic Surgery

Charite University Medical Center

1998

Internship Program - Surgery

Wake Forest University School of Medicine

1999

Residency Program - Surgery

Carolinas Medical Center

2000

Residency Program - Surgery

Zucker School of Medicine at Hofstra/Northwell

2003

Fellowship Program - Cardiothoracic Surgery

Montefiore Medical Center /Albert Einstein College

2005

Fellowship Program - Vascular Surgery

Harbor / UCLA Medical Center

2006

Locations

Insurance

Please consult your health care provider or health plan for the most accurate information about your health plan’s coverage of a particular health care service offered at a MemorialCare facility. Learn more about our Accepted Health Plans.

Patient Reviews

4.8 out of 5
(255 Ratings)
Nov 28, 2025
Sharon B.
Nov 26, 2025
Elizabeth S.
Nov 21, 2025
Amalia S.
Oct 30, 2025
glenn a.
Everyone in the office truly cares that comes from the top thank’sDr
Oct 29, 2025
Glenn A.
Everyone in the office truly cares that comes from the top thank you Dr
Oct 29, 2025
Jeffrey O.
Office & staff are great. Dr. Khoynezhad is straightforward & attentive to questions & concerns. Ready to move forward!
Oct 15, 2025
Lisa C.
Dr KHOYNEZHAD is wonderful. I had valve replacement and aorta aneurysm repaired. The surgery went well. Back to a physical job in 8 weeks. His staff is very friendly and efficient. Scarring very minimal.
Sep 4, 2025
Ricky B.
Thanks for being a Excellent Dr Dr K.I'm blessed that God sent you to my father for his current situation in life.Thank you and your team for all you'll hard work.God BlessRicky k Benjamin
Sep 4, 2025
ricky l.
Thank you Dr K and your entire team for taking care of my father Waymond Benjamin during this challenging time in his life.Bless you and your entire team for the work your doing for my fatherRicky k Benjamin
Aug 19, 2025
Andy P.
As far as I can see this guy is getting one star reviews by fans of Paxton. Unfair and you should be ashamed of yourselves. Other than these false reviews, and from what I have read, to me it sounds like this guy is top of his game and an expert in his field. Someone I’d trust 100% if I had cardiac issues.

Source: Reviews are aggregated from third-party review sites such as Facebook, Google, HealthGrades, RepuGen, Vitals, WebMD, and Yelp.