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7801 S. Western Ave. Suite 101
Oklahoma City, OK 73139



Dr. Nathan Proud

Owner & Dentist

A resident of Edmond for the past five years, Dr. Proud hails from Northern Alberta, Canada. He enjoys providing comfortable dental care that makes people change their view of dental visits. Dr. Proud is married and has two amazing boys that always keep him busy!

Dr. Proud knew when he first chose the profession of dentistry that he would have a job where most people would not be happy to see him, some may even dread it. His personal goal with every patient is to have a positive experience at the dentist and that over time, they will enjoy coming to the dentist. He believes having a painless visit at the dentist is great place to start.

Loma Linda University School of Dentistry’s motto is – Service is Our Calling – and Dr. Proud tries to live up to that on both a local and international level. He has enjoyed participating in the Oklahoma Mission of Mercy as it gave him an opportunity to serve his fellow Oklahomans. He has also had the privilege of going to Guatemala and Peru in the past and looks forward to many future dental trips to areas of need.

When Dr. Proud is not in the office he enjoys an active and healthy lifestyle, including training to be a triathlete/marathoner. He and his wife also enjoy taking an active role in their local church ministries.

Dr. Lori Holden


Dr. Lori Holden is a native Oklahoman. She was born in Oklahoma City and raised in Norman, OK. She attended the University of Oklahoma for her undergraduate degree, where she majored in Zoology and received a bachelor of Science from OU. Upon graduation, she began working as a medical/biochemical research scientist before returning to OU to continue her education. She then attended the University of Oklahoma College of Dentistry and graduated in May 2005 with distinction.

Dr. Holden has a passion for short-term mission work. She has served as a missionary dentist on many occasions, traveling into the Amazon River Basin and ascending into the Andes of Peru many times.

Her hobbies include reading, playing games and spending time with her nieces & nephews. Dr. Holden also enjoys playing with her pets Aries and Pippin.

Dr. Holden is very excited to deliver the best dental care possible in a warm and caring environment. Dr. Holden’s number one goal is patient satisfaction, and she looks forward to serving the Oklahoma City community with these goals in mind.

Dr. Mehreen Khan


Dr. Mehreen Khan was born and raised in the city of London, UK, where she earned her BDS degree from Kings College London in 2007. Her passion for dentistry began at an early age when her grandmother was diagnosed with oral cancer. Knowing that this may have been preventable with early and appropriate intervention, she was inspired to become a compassionate dentist who would always strive to prevent dental disease on all levels. This is reflected not only by her attention to detail whilst examining patients but also by the countless hours she spends discussing dental disease and prevention with her patients.

Over the last decade, she has been fortunate to have gained international experience and has worked successfully as a dentist in 3 countries. She began her journey as a busy general dentist in the UK, after which she traveled and worked in Dubai for several years. Her family then moved to the US, where she went back to dental school a second time to gain her DDS degree at the University of California in San Francisco. This rich experience gave her the honor of working with patients from all walks of life and allowed her to pick up unique dental skills and techniques along the way. She has remained up to date with countless hours of CE and has numerous certifications, in the use of Invisalign, Clear Correct, Inman aligners (teeth alignment), Laser and CADCAM (all ceramic crowns). Dr. Khan thoroughly enjoys working with her excellent support team here at Orion Dental Group who share her goal of making the dental experience a pleasant one, by alleviating anxieties and making patients feel comfortable and taken care of.

When not taking care of patients, she loves to spend time with her family. She feels blessed to be married to her best friend and has three wonderful children including a daughter and twin boys. She loves to cook, read, travel and swim and is fluent in English, Urdu and Hindi. Being new to Oklahoma, the family spends each weekend exploring everything this great city has to offer.

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