9033 Wilshire Blvd., #200, Beverly Hills, CA 90211

Your Journey to Overcoming Obesity
Starts Here!

Proven Clinical Results

With over 8,000 successful outcomes, Khalili Center has helped patients lead a healthier life through a comprehensive, family-style program

World renowned surgeons at the Center offer you the safest, most successful bariatric surgery experience using innovative, minimally invasive and robotic surgical techniques.

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Finally, A Weight Loss Solution That Works

Obesity is a chronic medical condition that can affect all areas of our lives. Worse, this condition may lead to a host of other life-threatening diseases. Below is a first-hand account of how Nichole decided to take action to significantly improve her personal and professional life.

Nichole would walk to her car after a grueling 8-hour workday feeling defeated. Her knees throbbed. Her legs ached. At 5’4” tall and weighing 253 pounds, she knew her weight was holding her back. And she decided to take the first step in her weight loss journey when she came in to see Dr. Khalili.

Walking into the Center, she was determined to change her inner narrative that she was a “fat, lazy person”, but she didn’t know how to start. Our team of experienced and dedicated healthcare professionals knew that making a healthy change in her life required a concentrated focus on Nichole, the person, not her weight. We give our patients comprehensive support by collaborating with our nurse practitioners, dieticians and medical consultant physicians to set up the lifestyle changes necessary for success.

The decision to have weight loss surgery should not be taken lightly. Our team at the Center takes a holistic approach to health and wellness. Nichole’s obesity wasn’t just a number on a scale – it had multiple health problems associated with it. She had a fatty liver, high blood pressure, high cholesterol, and was pre-diabetic. Along with these physical symptoms came mental health challenges associated with depression and feeling helpless.

When Nichole found herself sitting across Dr. Khalili, she knew that she found a world leading expert on obesity who would help her take control of her life and health. Soon thereafter, through the highest-quality care for a minimally invasive bariatric surgery, she was back on her feet with a renewed optimism about her personal and professional life. “Being skinny was just a perk for Nichole – it was a “gift” she got with undergoing bariatric surgery that changed her life.”

If Nichole’s struggles sound familiar to you, we would love to hear from you. Come meet our team and learn more about bariatric surgery options. The countless stories we hear on a daily basis remind us that Nichole’s experience is not just isolated to a few people.

Come learn how we can help you and begin your weight loss journey today.

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Across the country

FACT: About 40% of Americans Struggle with Obesity


Obesity is a serious medical condition that affects approximately 40% of the population in the United States and is becoming increasingly common in other parts of the world. Despite the far-reaching problem of obesity – it’s often misunderstood and mismanaged.

Patients often go on for years ignoring the debilitating effects of obesity and struggle to lose weight and keep it off. Every day, we see patients confronting this battle and asking our team at the Center what can be done. With our comprehensive approach to weight loss, we understand that there is no single operation, diet or medication that can by itself offer a permanent cure. We have proven that surgery with good aftercare and moderate lifestyle changes can produce excellent long-term results for health and weight.

We are here to help.

A note from

Dr. Khalili, Surgeon & Founder of Khalili Center

My name is Dr. Theodore Khalili, surgeon and founder of Khalili Center. I founded the Center because I have dedicated my life-long professional work to patient care. My approach to patient-centric partnerships and service-oriented facilities offer a comprehensive and holistic approach to bariatric treatment – all in one place.

I believe that patient care does not end right after surgery – it’s only the beginning. I founded the Center to give patients access to a supportive community that guides them through each step of the weight loss journey. We work with a team of registered dieticians, psychologists and general doctors to create tailored, best-in-class care available.

I have performed over 8,000 bariatric surgeries throughout my career, and I have seen how these life-changing procedures can give patients the hope they never thought they would have. After surgery, patients have expressed that they are able to live their lives in a way they never thought was possible – whether it be running around with their kids, training for a marathon, scuba diving, or something as simple as crossing their legs. We’re here to celebrate all the successes – the big and the small.

Many patients during the consultation phase express varying levels of skepticism. They have explored diets or medications often to no effect. Sometimes, they may have even considered surgery, but decided against it because of invasive, outdated techniques.

If that describes you, we understand because we see people every day who feel the way you do. But at the Center, we are leading with innovative surgical techniques that result in thousands of successful minimally invasive bariatric procedures.

The Center is only a call away. I have devoted my career to changing patients’ lives through bariatric surgery, and I cannot wait to assist you through yours!

I will always be happy to speak with you.

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Theodore Khalili, MD, FACS

Surgeon and founder, Khalili Center

What is Bariatric Surgery?

Bariatric surgery, or weight loss surgery, is an operation to help induce significant weight loss by making changes to your digestive system.

Gastric bypass surgery

Gastric bypass is one of the most common weight loss surgeries in the United States.

Gastric bypass surgery enables you to feel full while eating much less. By separating the stomach into two unequal compartments, gastric bypass surgery dramatically restricts the amount of food you can or want to eat. In addition, calories are not normally absorbed. Weight loss from gastric bypass surgery is from dual effects – you both eat and absorb less food.

After a gastric bypass, you’ll still love the taste of food and socializing around the dinner table, but you’ll feel adequately satisfied after a smaller meal. Unlike a diet, these small meals will not make you feel hungry or deprived.

Furthermore, the weight loss from a gastric bypass might bring total or partial relief from weight related health problems like high blood pressure, diabetes or sleep apnea.

Taking charge of your health through bariatric surgery can ensure longevity to your life.

Sleeve gastrectomy

A sleeve gastrectomy is a laparoscopic procedure that creates a narrow tube called a “sleeve” that empties food out of the bottom of the stomach into the small intestine the same way it did before surgery. Your new, smaller stomach does not produce the same appetite-increasing hormones as a regular stomach, and your appetite will be greatly reduced.

Without the intestinal re-routing typically performed in gastric bypass surgery, sleeve gastrectomy is a less complex procedure that affects hormones in the gut that can help you feel less hungry.

Because you will not be able to eat as much after a sleeve gastrectomy, you will lose a significant amount of weight.

You might also enjoy relief from conditions related to obesity — diabetes, hypertension and sleep apnea.

As your body begins to take on a new shape, the world will start to look different as well. Our patients find this makes it much easier to embrace a lifelong commitment to exercise and good decisions about their wellness.

LAP-BAND® surgery

A LAP-BAND® is a device that your surgeon will place around the top part of the stomach. This adjustable device creates a two-compartment stomach where a person eats enough food only to fill the top part of the stomach. Over time, the food passes through into the remainder of the stomach and digestion occurs normally.

This procedure is considered by many to be the least invasive surgery for weight loss. The upper pouch will be able to hold only about half a cup of food and you will feel full fast and you’ll feel satisfied longer.

Over time, you’ll lose weight — our goal is between 1 to 2 pounds a week.

As you follow your normal activities and add some exercise, you create a calorie deficit — burning more calories than you are consuming. The result is weight loss.

Revisional Procedures

While generally successful, weight loss operations occasionally require revisions. Revisions are often necessary as a result of either device-related problems or unsatisfactory weight loss. In addition, they may be performed because of complications of weight loss surgery. One frequent example is unrelenting heartburn after sleeve gastrectomy. In addition, several surgeries that are no longer commonly performed (jejunoileal bypass or the stapled gastroplasty), are associated with many anatomic and nutritional complications. Patients who underwent these procedures frequently require revisional surgery. The outcome of most revisional operations is favorable when performed by an experienced bariatric surgeon—and when patients are appropriately selected for such procedures. Dr. Khalili is one of the leading authorities on revisional bariatric surgery.

Talk to an expert

  • Gastric bypass surgery

    Gastric bypass is one of the most common weight loss surgeries in the United States.

    Gastric bypass surgery enables you to feel full while eating much less. By separating the stomach into two unequal compartments, gastric bypass surgery dramatically restricts the amount of food you can or want to eat. In addition, calories are not normally absorbed. Weight loss from gastric bypass surgery is from dual effects – you both eat and absorb less food.

    After a gastric bypass, you’ll still love the taste of food and socializing around the dinner table, but you’ll feel adequately satisfied after a smaller meal. Unlike a diet, these small meals will not make you feel hungry or deprived.

    Furthermore, the weight loss from a gastric bypass might bring total or partial relief from weight related health problems like high blood pressure, diabetes or sleep apnea.

    Taking charge of your health through bariatric surgery can ensure longevity to your life.

  • Sleeve gastrectomy

    A sleeve gastrectomy is a laparoscopic procedure that creates a narrow tube called a “sleeve” that empties food out of the bottom of the stomach into the small intestine the same way it did before surgery. Your new, smaller stomach does not produce the same appetite-increasing hormones as a regular stomach, and your appetite will be greatly reduced.

    Without the intestinal re-routing typically performed in gastric bypass surgery, sleeve gastrectomy is a less complex procedure that affects hormones in the gut that can help you feel less hungry.

    Because you will not be able to eat as much after a sleeve gastrectomy, you will lose a significant amount of weight.

    You might also enjoy relief from conditions related to obesity — diabetes, hypertension and sleep apnea.

    As your body begins to take on a new shape, the world will start to look different as well. Our patients find this makes it much easier to embrace a lifelong commitment to exercise and good decisions about their wellness.

  • LAP-BAND® surgery

    A LAP-BAND® is a device that your surgeon will place around the top part of the stomach. This adjustable device creates a two-compartment stomach where a person eats enough food only to fill the top part of the stomach. Over time, the food passes through into the remainder of the stomach and digestion occurs normally.

    This procedure is considered by many to be the least invasive surgery for weight loss. The upper pouch will be able to hold only about half a cup of food and you will feel full fast and you’ll feel satisfied longer.

    Over time, you’ll lose weight — our goal is between 1 to 2 pounds a week.

    As you follow your normal activities and add some exercise, you create a calorie deficit — burning more calories than you are consuming. The result is weight loss.

  • REVISIONAL PROCEDURES

    While generally successful, weight loss operations occasionally require revisions. Revisions are often necessary as a result of either device-related problems or unsatisfactory weight loss. In addition, they may be performed because of complications of weight loss surgery. One frequent example is unrelenting heartburn after sleeve gastrectomy. In addition, several surgeries that are no longer commonly performed (jejunoileal bypass or the stapled gastroplasty), are associated with many anatomic and nutritional complications. Patients who underwent these procedures frequently require revisional surgery. The outcome of most revisional operations is favorable when performed by an experienced bariatric surgeon—and when patients are appropriately selected for such procedures. Dr. Khalili is one of the leading authorities on revisional bariatric surgery.

Talk to an expert
Thousands of bariatric surgery patients see significant results every year

How to Choose the Right

Weight Loss Surgeon


After performing thousands of bariatric surgeries and contributing substantial research and literature to the broader medical community, the Center has become one of the most innovative and effective solutions to bariatric surgery.



Dr. Theodore Khalili

Dr. Theodore M. Khalili is the Founder and Director of Khalili Center

Dr. Khalili has performed more than 8,000 bariatric and advanced laparoscopic surgeries — including the nation’s first robotic-assisted gastric bypass in 2002. His reputation among the best-in-class surgeons has allowed him to develop new technologies to combat obesity.

Systematic and methodical, Dr. Khalili makes educated and informed decisions based on his extensive knowledge and experience. His patient-centric approach allows him to build close relationships with his patients that resemble a true partnership. Dr. Khalili was looking to create something truly impactful when he founded the Center.

Part of what makes the center unique is the dedication to patient service. The five-star level of care is the standard of excellence at the Center. The other part that makes the center unique is our commitment to innovation in developing the latest techniques in bariatric surgical care.

Khalili Center is the realization of Dr. Khalili’s vision and his passion for innovation. It’s a place where patients enjoy holistic care for the rest of their lives.

Dr. Khalili is a pioneer in the field of minimally invasive bariatric surgery in Los Angeles. He helped start the Weight Loss Surgery Program at Cedars Sinai Medical center, and until June 2010 served as the Director. He has trained many surgeons who have gone on to lead bariatric programs all over the country. He is the author of numerous academic papers and presentations on a variety of subjects, published and spoken all around the world. His work underscores his commitment to the ongoing advancement of new surgical procedures and technologies.

Dr. Kai Nishi

Dr. Gregg Kai Nishi is a Board Certified general and bariatric surgeon. He is a subject matter expert on minimally invasive and robotic surgical techniques. Dr. Nishi has enjoyed extensive media coverage as a weight loss thought leader and has spoken extensively on these subjects with patients all over the world.

Dr. Gregg Kai Nishi has been instrumental in the development the Center since inception in 2010. Dr. Nishi brings a wealth of expertise to the Center and his unique perspective gives him the necessary experience to bring high-quality care to patients all over the world. He is an expert on innovative, minimally invasive surgical techniques and has spoken extensively on the subject, having appeared in a variety of news media, including Good Morning America and the Los Angeles Times.

Formerly the Assistant Director of the Cedars-Sinai Center for Minimally Invasive and Weight Loss Surgery, Dr. Nishi was also an attending surgeon in Trauma Services and Surgical Intensive Care at Cedars-Sinai.

  • Dr. Theodore M. Khalili

    Dr. Theodore M. Khalili is the Founder and Director of Khalili Center

    Dr. Khalili has performed more than 8,000 bariatric and advanced laparoscopic surgeries — including the nation’s first robotic-assisted gastric bypass in 2002. His reputation among the best-in-class surgeons has allowed him to develop new technologies to combat obesity.

    Systematic and methodical, Dr. Khalili makes educated and informed decisions based on his extensive knowledge and experience. His patient-centric approach allows him to build close relationships with his patients that resemble a true partnership. Dr. Khalili was looking to create something truly impactful when he founded the Center.

    Part of what makes the center unique is the dedication to patient service. The five-star level of care is the standard of excellence at the Center. The other part that makes the center unique is our commitment to innovation in developing the latest techniques in bariatric surgical care.

    Khalili Center is the realization of Dr. Khalili’s vision and his passion for innovation. It’s a place where patients enjoy holistic care for the rest of their lives.

    Dr. Khalili is a pioneer in the field of minimally invasive bariatric surgery in Los Angeles. He helped start the Weight Loss Surgery Program at Cedars Sinai Medical center, and until June 2010 served as the Director. He has trained many surgeons who have gone on to lead bariatric programs all over the country. He is the author of numerous academic papers and presentations on a variety of subjects, published and spoken all around the world. His work underscores his commitment to the ongoing advancement of new surgical procedures and technologies.

  • Dr. Gregg Kai Nishi
    Dr Kai Nishi

    Dr. Gregg Kai Nishi is a Board Certified general and bariatric surgeon. He is a subject matter expert on minimally invasive and robotic surgical techniques. Dr. Nishi has enjoyed extensive media coverage as a weight loss thought leader and has spoken extensively on these subjects with patients all over the world.

    Dr. Gregg Kai Nishi has been instrumental in the development the Center since inception in 2010. Dr. Nishi brings a wealth of expertise to the Center and his unique perspective gives him the necessary experience to bring high-quality care to patients all over the world. He is an expert on innovative, minimally invasive surgical techniques and has spoken extensively on the subject, having appeared in a variety of news media, including Good Morning America and the Los Angeles Times.

    Formerly the Assistant Director of the Cedars-Sinai Center for Minimally Invasive and Weight Loss Surgery, Dr. Nishi was also an attending surgeon in Trauma Services and Surgical Intensive Care at Cedars-Sinai.

TAKE YOUR FIRST STEP TO A HEALTHY LIFE

Choose the experienced bariatric surgeons who will support you for the rest of your life

Every step in our approach is calibrated to give you the maximum chance of long-term success. We invite you to see the high-quality service difference from your first consultation at our Center.

Our surgeons have performed thousands of surgeries over many decades of extensive research and practice. Our comprehensive and family-style approach is designed to guide you through a healthy weight loss process by including a team of psychologists, registered dieticians and support groups. We are here to help you through every step of your weight loss journey.

At Khalili Center, we believe that the best medical outcomes are born from a true collaboration between patient and doctor. Every patient’s situation is unique, and the right plan will take careful consideration of the patient’s specific healthcare needs, goals and expectations.


Talk to the bariatric
experts today.

Contact us

hear from our patients

Sarah’s Story

Watch her story.

Robin’s Story

Watch the video.

Bonnie & Keith’s Story

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Angela’s Story

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Take your first step to a healthy life

Are You Looking for a Solution to Obesity?

We offer a proven surgical solution to obesity. Our mission is to educate the world about obesity. Take the first step of your weight loss journey today.

If you would like a free insurance check, please contact us here.

We offer a proven surgical solution to obesity. Our mission is to educate the world about obesity. Take the first step of your weight loss journey today.

If you would like a free insurance check, please contact us here.

trusted by doctors

Medical professionals with obesity come to us for surgery

“I feel like I have my life back. Thank you for guiding me through the weight loss process. I am myself again.”

JENNIFER,
ORANGE COUNTY, CALIFORNIA

“The team at Khalili Center guided me through every step of the process. I felt comfortable. I felt taken care of. I can’t thank Dr. Khalili and the staff for everything they’ve done for me.”

Olivia,
Jupiter, Florida

“I always felt like there was nothing to do. Every diet I tried never seemed to work. It was only when I started looking into bariatric surgery that I knew something was going to change.”

Christina,
Phoenix, Arizona

If you would like to speak to any of our patients about their experiences with obesity surgery, please contact us.

A website can never replace the advice from a surgeon, doctor or physician who has assessed your condition. This website does not serve to provide specific medical advice to any reader. Our goal is to introduce visitors to bariatric surgery and offer educational tools and resources about the surgeries we offer to treat obesity. Please read the information carefully and discuss with one of our surgeons your doctor or a licensed medical professional.

Do not disregard — or fail to seek — personal medical advice because of any of the content on this site. You owe it to yourself to find the best answer for your individual circumstances. Please Read our full disclaimer here. View our Privacy Policy here

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