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Meet Our Specialists

Dr. Ortiz


Dr. Jan Ortiz graduated from the University Of Puerto Rico School Of Dental Medicine in 2005, where he is from. After finishing his dental degree, Dr. Ortiz obtained his Certificate in Advanced Graduate Studies at Tufts University School of Dental Medicine focusing in special needs and medically compromised patients. Dr. Jan Ortiz received his specialty training in Orthodontics and Dentofacial Orthopedics combined with a Doctorate in Sciences in Dentistry from Boston University Goldman School of Dental Medicine. During his years doing his specialty training in Boston, Dr. Ortiz worked as a general dentist. During his entire dental training, Dr. Ortiz…

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Dr. Onuora


Dr. Obiajulu Onuora, known as “Dr. Obi,” grew up in Nigeria and the United States. He received his dental degree at the University of Minnesota, Twin Cities, completed a general practice residency in Brooklyn, New York, and practice as a dentist there for three years. Dr. Obi’s love for creating beautiful smiles pushed him to pursue more education in orthodontics at Jacksonville University, Florida. Dr. Obi has seen, treated, and created hundreds of lovely smiles during his training and practice. Besides his love for orthodontics, Dr. Obi also enjoys comics and soccer.

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Meet Our Office Managers

At Peppermint Dental & Orthodontics in Greenville, McKinney, Rowlett, Sherman and Albuquerque, we recognize that all of 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.

Our office managers oversee all aspects of our practice’s operations, and are responsible for scheduling, accounting, and patient case management. Most importantly, they help to make each patient’s experience pleasant and hassle-free.


Office Manager - Greenville


Office Manager - McKinney


Office Manager - Sherman


Office Manager - Rowlett

Lauren Arenas

Office Manager - Carrollton
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