Our Team


Award Winning Dentists

We recognize that all our patients are unique and deserve to receive dental care that reflects their individual needs. Our experienced and talented dental team is committed to working with you and your family to create a comfortable, stress-free, and rewarding dental experience every time you visit our practice.
We are pleased to welcome you and your family, and we look forward to working with you.

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Dr. Soraya Acevedo


Dr. Soraya Acevedo graduated from Santo Tomas University in Columbia in 1989. Her passion for dentistry is fueled by the excitement of seeing each and every patient walk out of her office with a beaming smile while using the best of care with the latest technology in dentistry. While always keeping the patients’ in mind, she has continued her education by attending seminars and reading current dental literature.

Dr. Acevedo has continued her practice in the state of California being licensed since 2007. Now a proud member of the American Dental Association, San Gabriel Valley Association, and Academy of Laser Dentistry.

Over 20 years in practice, Dr. Acevedo works hard to interact with the patient in order to make the patients’ visit as pleasant and enjoyable as can be. Being a wife and mother of three children herself, she understands and can relate to the importance of maintaining good oral health. With her dedication, Dr. Acevedo gives her patients the best of care, meeting and treating each patient with their teeth as if they were her own. Thus making the patients feel at ease and delighted with not only the treatment, but also with her.

Dr. Sarah Tavakoli

Dr. Sarah Tavakoli


Dr. Sarah Tavakoli, is a graduate of the University of Southern California School of Dentistry. Dr Tavakoli enjoys helping patients restoring their smile. She takes her time to thoroughly explain each and every treatment recommendation and answer any question her patients have. Dr Tavakoli is a member of the California Dental Society and American Dental Association.

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Dr. Ruben Ramirez


Dr. Ramirez earned both his bachelor and dental degrees from the Pontifical Xavier University. He later graduated from the Oral and Maxillofacial Surgery training program at the Military Hospital, Nueva Granada University in Bogota, Colombia in 1989. Shortly after that, he entered the Oral and Maxillofacial Surgery training program at Louisiana State University where he completed his oral and maxillofacial training.

He has been a dentist for over 30 years and is currently working for our practice as an Oral Surgeon. He is a very dedicated and compassionate professional who finds joy helping his patients in his field of expertise.

Dr. Michael-Shamtoub

Dr. Michael Shamtoub


Dr. Michael Shamtoub graduated NYU School of Dentistry and completed General Practice Residency at Woodhull hospital in New York. During residency, Dr. Michael not only gained experience in all areas of general dentistry, but he also had training in oral maxillofacial surgery. Dr. Michael was on call and treated patients in the operating room. As a general dentist, Dr. Michael passionately treats every patient with exceptional care. He ensures patients feel comfortable and relaxed during dental visits. While working in private practice in Manhattan New York, Dr. Michael focused on cosmetic and invisalign dentistry. With this experience, he enjoys helping his patients improve their oral health and function while giving them their dream smile. Dr. Michael is friendly, outgoing and compassionate. In his free time, he loves spending time with his close friends and family.

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Dr. John Allen


Dr. John Allen has practiced general dentistry and oral and maxillofacial surgery for over 20 years. He began his formal education at the University of British Columbia, earning a Bachelor of Science degree in Biology in 1983. Following his undergraduate education, Dr. Allen continued on at the University of British Columbia to earn his Doctorate of Medical Dentistry in 1993.

In order to become a specialist in oral and maxillofacial surgery, Dr. Allen received years of advanced training and education through fellowships and residencies at some of the finest institutions in the country.

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Dr. Iramaia Yassim


Dr. Iramaia Yassim has been crafting beautiful smiles since 2004 when she graduated from UEPG (State University of Ponta Grossa) in Brazil. When not improving the smiles of her patients, Dr. Iramaia is improving her skills by attending innovative educational seminars and progressive personal development courses. Dr. Iramaia has a keen interest in keeping the body and mind connected with time at the gym and daily meditation which in turn allows her to focus on cultivating lasting interpersonal relationships with her patients. During her free time, Dr. Iramaia enjoys traveling and spending quality time with her son.

Dr. Gabreal Shamtoub

Dr. Gabreal Shamtoub


Dr. Gabreal Shamtoub received his dental degree from NYU College of Dentistry. He then completed a General Practice Residency at Lincoln Medical Center treating patients who required complex dental treatment, which included dental trauma and full mouth rehabilitation. Dr Shamtoub’s desire to help people save their natural teeth and smile led him to choose Endodontics as a specialty. Dr Shamtoub completed his specialty training in Endodontics from USC School of Dentistry. Dr Shamtoub’s goal is to provide high quality root canal treatments to restore his patients’ oral health, function and smile.

Professional Background: Endodontics Specialty, USC General Practice Residency, Cornell-Lincoln Medical Center Doctor of Dental Surgery, NYU Bachelors of Science in Biology, UCLA Past and present professional affiliations: American Academy of Endodontics American Dental Association California Dental Association San Fernando Valley Dental Association
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Dr. Diana Medina


Dr. Medina obtained her bachelor’s degree in Bogota, Colombia from Rochester School; where she graduated Valedictorian. She then obtained her Doctor of Dental Surgery in 1996, Cum Laude in the field of research, from Pontificia Universidad Javeriana in Bogota. She remained at Javeriana completing her Oral and Maxillofacial Surgery degree in 2002, Magna Cum Laude in the field of research. During this period (2001) Dr. Medina incorporated into her training an Oral and Maxillofacial Surgery Externship at Mount Sinai Hospital in New York. She validated her dental training and completed a surgical internship at the University of California in Los Angeles in 2003. Dr. Medina completed her senior residency in 2006 at Temple University in Philadelphia.

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Dr. Brian Olvera


Dr. Olvera received his DDS from the University of Southern California, Herman Ostrow School of Dentistry in 2011. His passion is to help others, he volunteers in several dental nonprofits, helping underprivileged children.

Dr. Olvera’s priority is to bring a smile to his patients. He is committed to bringing care to his patients in the same manner he would to his own family. He brings the highest standards of care and experience. Spending countless hours in continue education in order to stay up-to-date in all the latest dental procedures and technology. In his free time he loves music, playing the cello and the guitar.

Dr. Anthony Hoang


Dr. Anthony Hoang received his DMD degree from Tufts University School of Dental Medicine located in Boston, Massachusetts in 2014. He completed a year of General Practice Residency in Dentistry at the Loma Linda VA Medical Center where he provided comprehensive dental care to the veteran population.

Dr. Hoang’s favorite aspects of dentistry are the interpersonal relationships he develops with his patients and making them feel at ease during their dental visits. Dr. Hoang enjoys giving back to the community and has volunteered at nonprofit organizations such as the Long Beach Children’s Dental Health Clinic, Boston public schools outreach programs, federal medical centers, and the Autumn Years Alzheimer’s care facility.


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