Welcome

A Gastroenterology fellowship trained and a Diplomat of the American Board of Internal medicine, Dr. Rahimi is specialized in treatment of gastrointestinal disorders and liver disease as well as diagnostic and therapeutic endoscopy, colonoscopy and capsule endoscopy. She is board certified in gastroenterology. She is committed to provide compassionate and comprehensive patient care by involving her patients in their care. This is carried out by means of patient education and providing the best individual based treatment plan.

Dr. Rahimi promotes awareness for the importance of colon cancer screening by being involved in the local colon cancer prevention programs and lecture series. Her main interests are general gastroenterology with a focus on the prevention of gastrointestinal cancers and weight loss in patients with a gastrointestinal disease.


Dr. Rahimi cares for a wide range of Digestive System Disorders & Procedures

OUR SERVICES

Caring-Digestive-Disorders

Digestive System Disorders

We care for digestive disease and any health problem that occurs in the digestive tract. Conditions may range from mild to serious.

Upper Endoscopy

Upper endoscopy is a procedure in which a thin scope with a light and camera at its tip is used to look inside the upper digestive tract — the esophagus, stomach, and first part of the small intestine, called the duodenum.

endoscopy
Tube

Gastrostomy Tube

A gastrostomy tube (also called a G-tube) is a tube inserted through the abdomen that delivers nutrition directly to the stomach. It’s one of the ways doctors can make sure kids with trouble eating get the fluid and calories they need to grow.

Colonoscopy

Colonoscopy

A colonoscopy is an exam used to detect changes or abnormalities in the large intestine (colon) and rectum.

Capsule Endoscopy

A procedure used to look at the inside of the intestines and other parts of the digestive tract. The patient swallows a capsule about the size of a large pill. The capsule contains a tiny wireless camera that travels through the digestive tract. It takes pictures of the inside of the digestive tract

Capsul
Weight-loss

Weight Loss

Dr. Rahimi has incorporated two weight loss programs in her practice to guide  patients reach their healthy weight goals and maintain their weight loss on their path to the optimal health.

Our Philosophy

Dr. Rahimi’s mission is to provide the needs of her patients in accordance with the values of compassion and respect for the dignity of each individual. Her quest is to serve the people of her community through distinction of service and individualized attention, which each person deserves. Such mission is designed to meet the needs of her patient’s varied gastrointestinal conditions with the aim to care for the mind, the body and the spirit.

Dr. Rahimi is also keen on the importance of teaching her patients about their medical condition and, more importantly, how to achieve a healthy life through active and vigorous lifestyle behavior. But what truly defines her medical practice is accountability and transparency. In many ways, Dr Rahimi’s goal is not just to find a remedy for a medical condition but also to ensure optimal health for her patients through excellence in service.

Non-Surgical Weight Loss program

Dr. Rahimi has incorporated two weight loss programs in her practice to guide patients reach their healthy weight goals and maintain their weight loss on their path to the optimal health.

Digestive System
Disorders

Diverticular disease

Condition that causes small bulges or sacs to form in the wall of colon.

Crohn's disease

Crohn’s disease is an inflammatory bowel disease that causes chronic inflammation of the gastrointestinal tract.

Colon polyps & cancer

Most colorectal cancers start as a growth on the inner lining of the colon or rectum. These growths are called polyps. Some types of polyps can change into cancer over time.

Celiac disease

Celiac disease is an immune disease in which people can’t eat gluten because it will damage their small intestine.

Constipation and diarrhea

Constipation and diarrhea are both issues with bowel movements.

Peptic ulcer disease and gastritis

A peptic ulcer is a sore in the lining of the stomach or duodenum.

Ulcerative colitis

Ulcerative colitis is a chronic disease of the large intestine, in which the lining of the colon becomes inflamed and develops tiny open sores, or ulcers.

Irritable bowel syndrome

IBS is a common disorder that affects the large intestine. Signs and symptoms include cramping, abdominal pain, bloating, gas, and diarrhea or constipation, or both.

Hepatitis

Hepatitis refers to an inflammatory condition of the liver. It’s commonly caused by a viral infection

Heartburn and swallowing difficulties

Heartburn is a painful burning feeling in your chest or throat. Swallowing difficulty is the inability to swallow foods or liquids with ease.

Diverticular disease

Condition that causes small bulges or sacs to form in the wall of colon.

Crohn's disease

Crohn’s disease is an inflammatory bowel disease that causes chronic inflammation of the gastrointestinal tract.

Colon polyps & cancer

Most colorectal cancers start as a growth on the inner lining of the colon or rectum. These growths are called polyps. Some types of polyps can change into cancer over time.

Celiac disease

Celiac disease is an immune disease in which people can’t eat gluten because it will damage their small intestine.

Constipation and diarrhea

Constipation and diarrhea are both issues with bowel movements.

Peptic ulcer disease and gastritis

A peptic ulcer is a sore in the lining of the stomach or duodenum.

Ulcerative colitis

Ulcerative colitis is a chronic disease of the large intestine, in which the lining of the colon becomes inflamed and develops tiny open sores, or ulcers.

Irritable bowel syndrome

IBS is a common disorder that affects the large intestine. Signs and symptoms include cramping, abdominal pain, bloating, gas, and diarrhea or constipation, or both.

Hepatitis

Hepatitis refers to an inflammatory condition of the liver. It’s commonly caused by a viral infection

Heartburn and swallowing difficulties

Heartburn is a painful burning feeling in your chest or throat. Swallowing difficulty is the inability to swallow foods or liquids with ease.

ABOUT
Dr. Poneh Rahimi

A Gastroenterology fellowship trained and a Diplomate of the American Board of Internal medicine; Dr. Rahimi completed her Bachelor’s of Science degree with biology major from UC, Irvine. She earned her medical degree from American University of the Caribbean, which included one year of training in the United Kingdom at Epsom General Hospital. She is board certified in gastroenterology.

Dr. Rahimi completed her internship and residency in Internal Medicine at MCP-Hahnemann in Pennsylvania. She pursued a fellowship in Gastroenterology at Long Island College Hospital affiliated with SUNNY, Down State in Brooklyn, New York. Dr. Rahimi has been involved in many research projects during her residency and fellowship leading to multiple publications in national scientific conferences.

After completion of Postgraduate training, Dr. Rahimi returned to Orange County to where she grew up. She has been serving her community of South Orange County Since 2006. She is affiliated with Mission Regional Medical Center and Saddleback Memorial Hospital. She is a member of American College of Gastroenterology and Southern California Society of Gastroenterology. She is national speaker to promote awareness for colon cancer screening.

Colon Cancer Screening

Colon cancer screening can detect polyps and early cancers in the large intestine. This type of screening can find problems that can be treated before cancer develops or spreads. Regular screenings may reduce the risk for death and complications caused by colorectal cancer.

Gastric Balloon

Weight Loss Procedure

Obesity has now been recognized as a global epidemic and a major public health problem in the USA. It is a chronic disease that is increasing in prevalence in adults, adolescents, and children. In the United States, the lifetime risk of becoming overweight or obese is approximately 50 and 25%, respectively. Obesity is associated with a significant increase in mortality and risk of many disorders, including fatty liver, diabetes mellitus, hypertension, dyslipidemia, heart disease, stroke, sleep apnea, cancer, and many others. Therefore, weight loss is associated with a reduction in obesity-associated morbidity.

Have a Question?

FAQ

You can find most answers to your questions right on this page.

Q: Do I need to make an office visit before my procedure?
A: Yes. Dr. Rahimi must evaluate you prior to the procedure and see you in the office first.

Q: What do I need to bring with me for my first office visit?
A: Your picture ID, Insurance card, cash or check for your co pay.

Q: Does your office validate for parking?
A: No. Parking is about $4 and they take cash, check or credit card.

Q: Should I arrive early for my appointment?
A: No, please arrive at your scheduled time and bring the completed forms with you .
(Please click here for the forms)

Q: When is the last appointment of the day?
A: 3:15 pm

Q: How long does a new consult appointment last?
A: Please allow for 45minutes from when you get in to the office till you leave.

Q: Could I bring my kids and pets to the appointment?
A: No. In order to maintain a professional environment and a pleasant experience for all other patients in the waiting room. Please do not bring your toddlers to the office. The young children tend to cry and disrupt the process of history taking by physician. Also, she will not be able to perform detailed physical examination when young children are in the room.

Q: What does clear liquid diet mean?
A: Any type of liquid that is see-through such as apple juice, ginger ale or broth.

Q: Could I drink coffee or tea?
A: Yes, but you may not use creamer or milk. Sugar or substitute sugar may be used.

Q: Should I take my medications the day of procedure?
A: Yes. You may take all your usual medications except any blood thinners (i.e. Coumadin, Lovenox, and Plavix), Aspirin, NSAIDs (i.e. Advil, Motrin, Naproxen) or diabetic mediations as instructed. Please refer to the instruction sheet or call us at 949-364-2536.

Q: What should I do if I lost my instructions sheet?
A: Please click here or call us at 949-364-2536.

Q: Do I really need a driver or can I drive myself home after the procedure?
A: Yes, you must have arranged a driver to take you home after procedure. Due to sedation you are not safe to drive or operate any machinery on the day of your procedure.

Q: After my procedure, when can I return to work?
A: The day after your procedure you may return to work. Unless indicated otherwise by Dr. Rahimi.

Q: Should I take my medications the day of procedure?
A: Yes. You may take all your usual medications except any blood thinners (i.e. Coumadin, Lovenox, and Plavix), Aspirin, NSAIDs (i.e. Advil, Motrin, Naproxen) or diabetic mediations as instructed. Please refer to the instruction sheet or call us at 949-364-2536.

Q: What should I do if I lost my instructions sheet?
A: Please click here or call us at 949-364-2536.

Q: Do I really need a driver or can I drive myself home after the procedure?
A: Yes, you must have arranged a driver to take you home after procedure. Due to sedation you are not safe to drive or operate any machinery on the day of your procedure.

Q: After my procedure, when can I return to work?
A: The day after your procedure you may return to work. Unless indicated otherwise by Dr. Rahimi.

Dr. Rahimi offers non-invasive weight loss procedure by Orbera gastric balloon placement.

Insurances Accepted

Contact Us

For all inquiries including scheduling, please contact us directly by phone. 

OFFICE

Phone: 949-364-2536

Poneh Rahimi, MD, PO BOX 2636 Mission Viejo, CA 92690

Email: RahimiOffice@Yahoo.com