The Calgary Team

Everyone in our practice, from our front office team to our hygienists and dental assistants want to give you the highest level of quality dental care. We are all passionate about helping our patients maintain a healthy smile for life.  You will feel this the moment you step into our office all the way until your scheduled appointment is over.  Please feel free to stop in and meet us at anytime!

Our Dentists

Dr. Meggan Schiffner

Dr. Schiffner’s passion is treating families and developing a lasting relationship with each one of them.   Her treatment plans are always centered around her patients’ comprehensive dental health with a focus on prevention and education, starting with patient’s as young as 1.

She enjoys all aspects of general dentistry and is specifically experienced in children’s dentistry, crowns, bridges, fillings, implant restoration and sedation dentistry.

She participates in outreach and speaking, as well as educating children in our local Calgary schools. She also works with mom’s groups, discussing healthy habits for expecting and new moms, along with their newborns.

She recently completed a 5 year commitment with the Calgary District and Dental Society. She held the position of Social Chair, Vice President, President and Past President.

Dr. Schiffner grew up in the small town of Lodi, in Northern California. She went to college in San Diego, where she completed her B.S. in Biology. For dental school, she attended the University of the Pacific, Arthur A. Dugoni School of Dentistry, in San Francisco. She then moved to Dallas, Texas, where she practiced general dentistry before she moved to Calgary to be with her husband.

In her free time, Dr. Schiffner enjoys spending time with her family and exploring what Calgary has to offer with her two children Sterling and Scarlett. She also enjoys travelling; her most recent trips have been to France, Croatia, St. Lucia, Egypt, Australia and Costa Rica.

Dr. Adriana Sopruniuk

Dr. Adriana Sopruniuk was born and raised in Edmonton, Alberta and attended the University of Alberta, graduating with both her Bachelor of Science and Doctor of Dental Surgery degrees. She is fluent in Polish and Ukrainian.

Dr. Sopruniuk is a member of the Calgary and District Dental Society, Alberta Dental Association and College and the Canadian Dental Association.

When she isn’t working, Dr. Sopruniuk is driving her two children to hockey, soccer and piano lessons. She also enjoys travelling, reading, golfing and running.

Dr. Mehbs Ali

Mehbs is a native Calgarian, growing up in the NW part of the city. He graduated from dental school in 1997 and has since returned to Calgary. He is married to his wife Nahid  and has 2 children who are always busy playing hockey. When he’s not working or at the rink with his kids, Mehbs tries to find the time to workout or play some shinny himself. As a family, they love to travel, play board/card games and take their dog Ollie for hikes in and around the city.

Mehbs loves being a dentist and enjoys spending his days with his great team members and helping his patients. With his extensive continuing education, he provides a great wealth of knowledge to his team. Some of his areas of clinical practice focus include restorative and cosmetic dentistry, root canals, extractions and  sleep apnea treatment.

Dr. Lindsay Davidson

Dr. Lindsay Davidson was born and raised in Calgary, Alberta. This is where she completed her Bachelor of Science degree before moving to Edmonton to pursue dentistry at the University of Alberta.

Dr. Davidson values her connections with patients and aims to build long-lasting relationships. Her number one priority is making you feel comfortable during your appointment. She is practices all aspects of general dentistry, and enjoys working with children. She welcomes all new patients and will always take the time to address any questions or concerns you might have.

In her free time, Dr. Davidson enjoys spending time with family & friends, listening to live music, and traveling. She also enjoys volunteering with non-profit dental organizations both at home and abroad.

Dr. Poorvi Brahmania

Dr. Poorvi Brahmania was born and raised in Regina, Saskatchewan. She moved to Saskatoon, where she completed her Bachelor of Science in Anatomy and Cell Biology and subsequent Doctor of Dental Medicine at the University of Saskatchewan. She spent two years practising in her hometown prior to moving to Calgary.

Dr. Brahmania enjoys all aspects of dentistry, with a particular interest in pediatric, neuromuscular and cosmetic dentistry. While being an avid traveller, she also finds time to volunteer in underserved areas of the world, providing dental care. She is currently an active member of the Canadian Dental Association, Calgary Alberta Dental Association and College, and the Calgary & District Dental Society.

Along with travelling, Dr. Brahmania enjoys exercising, attending yoga classes, and trying the cuisine of different cultures.

Dr. Wes Prepchuk

Dr. Wes Prepchuk was born in Edmonton but grew up mostly in the Calgary area. He made the trek over to Sydney, Australia in 2005, accompanied by his wife and two little boys. Since then, they’ve added two more children to their family, including a little girl.

Dr. Prepchuk holds bachelor degrees in Biochemistry from the University of Lethbridge, Canada and in Dentistry from the University of Sydney, Australia.

He believes in the importance of offering a complete range of services to his patients and has yet to discover an aspect of dentistry that he doesn’t enjoy. He loves the interaction with people, the intricately detailed work, and the active learning environment that dentistry provides.

After 14 years of practicing dentistry in Australia, he and his now-grown family have moved back home to Calgary to settle, trading the sunny beaches and kangaroos of Australia for the snowy mountains and grizzly bears of Canada.

Dr. Tiffany Chen

Dr. Tiffany Chen is originally from Taiwan, she is fluent in English, Mandarin, and Taiwanese. She lived in South Africa for 12 years where she received her dental qualification in 2006, from the University of Witwatersrand, Johannesburg. She then spent the next 12 years practicing dentistry back in her home country, Taiwan for another 12 years before moving here to Calgary.

Ever since she was small, Dr. Tiffany loves art and doing delicate handcrafts. She was the diligent girl who is obsessed with drawing inside the lines. Her love to work with her hands and interact with people steered her right into the career of dentistry. She enjoys all aspects of dentistry, with special interests in root canal treatments, extractions, and orthodontics.

Dr. Tiffany likes to think that being an amateur triathlete has helped her to achieve her goals in life. The sport taught her the positive motivation and perseverance required to attain her Canadian dental certification through the challenging equivalency process.

When she is not practicing dentistry or training for her next race, Tiffany loves to travel, or explore the world of Netflix in the comfort of her own home.

Dr. Rod Herchak

Dr. Rod Herchak was born and raised in SW Calgary. He graduated from the University of Alberta Faculty of Dentistry in 1980. He has maintained a high-quality dental practice in SW Calgary for over 35 years. His interests include the Calgary Flames, the Toronto Blue Jays, fishing, history and cooking.

Dr. Jessica Thomas

Dr. Jessica Thomas graduated as a general dentist from The University of Alberta in 2006. Ever since her graduation, Dr. Thomas’ passion has been working in “esthetic dentistry”. Recently, Dr. Thomas made the decision to limit her practice to providing esthetic dentistry and neuromodulators (Botox and Dysport) and is only seeing patients that have those specific esthetic dentistry and neuromodulator needs.

Within her practice, Dr. Thomas is especially passionate about cosmetic bonding – a conservative and economical alternative to veneers. While it is true that bonding is not always the best option, Dr. Thomas’ esthetic dental practice provides alternatives to bonding with veneers, crowns, bridges and implant crowns. Dr. Thomas’ practice goal is to always satisfy the patient’s desired dental outcome in the best way possible. Dr. Thomas feels that the best outcomes are achieved when each patient is provided with an in-depth understanding of the options and outcomes available to them. This understanding of options and outcomes allows each patient to feel confident to make an educated decision that is best for each patient’s personal situation.

Dr. Thomas has reduced her clinic hours to accommodate her family’s recent relocation to the United States. Dr. Thomas is committed to maintaining her role at Sierra Dental and continuing to provide esthetic and neuromodulator treatment to anyone who wishes to choose her to help them achieve the smile they dream of. Dr. Thomas is pleased to be able to offer digital consults through email, Instagram (@beyondsmilesyyc) or through

If you are interested in working with Dr. Thomas – do not hesitate to personally reach out to her at or you can call us at the office to request an appointment for a consultation.

Our Specialists

Dr. Ben Thomas


Dr. Ben Thomas was born in Calgary and raised in Crossfield, Alberta. After high school, he spent two years abroad before moving to the United States to pursue further education. He completed his undergraduate education at Brigham Young University, where he majored in Neuroscience and minored in French. He then earned his Doctor of Dental Surgery degree, Master of Public Health degree, and Specialty Certificate in Periodontics from the University of North Carolina. His training also included certification in Intravenous Sedation and Advanced Cardiac Life Support.

Dr. Thomas is a fellow of the Royal College of Dentists of Canada and an active member of numerous dental organizations and societies, including the American Academy of Periodontology, the Canadian Association of Periodontology, and the International Academy of Periodontology. As a trained periodontist, he specializes in the placement of dental implants and the management of the periodontal disease. This includes:

  • Limited or complete periodontal evaluation
  • Surgical and non-surgical periodontal therapy
  • Periodontal regeneration
  • Surgical implant placement
  • Ridge and sinus augmentation
  • Extractions and ridge preservations
  • Gingival grafting
  • Functional & Esthetic crown lengthening
  • Oral Pathology

Dr. Thomas is passionate about dental surgery and loves what he does. He is fluent in French and has provided dental services to underprivileged populations in Haiti, Mexico, Moldova, and Senegal. Despite his commitment to international humanitarian service, Dr. Thomas is happy to be home in Calgary and looks forward to putting down roots and building strong relations with his patients. When not at work, he enjoys spending time with his family, cooking for friends, and playing sports.

Dr. Javier Cabrales


Dr. Javier Cabrales completed the Graduate Periodontics program at the University of Manitoba in June 2020. Prior to his periodontal training, he received his DMD from the University of Saskatchewan in 2014 and thereafter worked as a general dentist for 3 years prior to entering postgraduate studies.

As a trained periodontist, he specializes in the placement of dental implants and the management of periodontal disease. This includes the following:

  • Complete or limited periodontal evaluations
  • Surgical and non-surgical periodontal therapy
  • Periodontal regeneration
  • Soft tissue augmentation
  • Functional & esthetic crown lengthening
  • Oral pathology & biopsies
  • Canine exposures
  • Guided surgical implant placement with a digital workflow
  • Sinus and ridge augmentation
  • Atraumatic extraction and ridge preservation

Dr. Cabrales is fluent in both English and Spanish, and was drawn to Calgary for its mountains. When not at work, he enjoys going for long walks with his dog, snowboarding, cycling, and playings sports such as soccer and squash.

Dr. Mostafa Altalibi


Dr. Altalibi received his D.M.D from the prestigious McGill University, graduating with the highest honour as the valedictorian of his class and having won numerous other awards including the American Association of Orthodontists Award.

Dr. Altalibi then dedicated the next year to working with disadvantaged and disabled kids at the Montreal Children’s Hospital. His growing interest in orthodontics led him to the University of Alberta to pursue his passion for orthodontics. There he completed a master’s degree and developed tools to help physicians and orthodontists treat obstructive sleep apnea in children.

Dr. Altalibi is currently involved in exciting research at the positive psychology institute at the University of Pennsylvania, to establish the means to boost his patient’s self-esteem throughout orthodontic treatment. He’s also an Assistant Clinical Professor at the University of Alberta Undergraduate Dental Clinic. He has published numerous research articles in respected scientific peer-reviewed journals on cleft lip and palate, surgical procedures, obstructive sleep apnea, and the new cone-beam tomography technology. Moreover, Dr. Altalibi is an examiner and fellow of the Royal College of Canada.

Outside of orthodontics, Dr. Altalibi enjoys healthy living, with an active lifestyle of travelling, camping, hiking, Cross Fit and yoga.

Prosthodontist Calgary - Dr. Ryan Keyes

Dr. Ryan Keyes


Dr. Ryan Keyes specializes in Prosthetic Dentistry at Sierra Dental. As a Board Certified Prosthodontist, Dr. Keyes can provide advanced and complex restorative & rehabilitative treatment options involving Crowns, Bridges, Veneers, Dentures, and Dental Implants focused on function and aesthetics.

Dr. Keyes is from Calgary. He is adventurous, enjoys travel and has sought unique opportunities for education around the world. After completing a Bachelors Degree in Science, Dr. Keyes then completed his dental training at USyd. Following Dental school, Dr. Keyes completed an additional 3 years of training focused specifically on the Specialty of Prosthetic Dentistry by completing a residency in Prosthetic Dentistry at UMN.

Dr. Keyes has completed Specialty level examination and Certification in Prosthodontics and is a Fellow with the Royal College of Dentists of Canada. Dr. Keyes is registered with the Alberta Dental Association and College, with practice focused on the Specialty of Prosthodontics.

Dr. Keyes enjoys teaching in the Dental field and has worked as an adjunct associate professor for the University of Minnesota School of Dentistry in the Department of Restorative Sciences. Also, Dr. Keyes maintains research interests at the University of Minnesota involving Dental Implants. Currently, Dr. Keyes is involved with local and international Dental study clubs and lectures as a Specialist in the field of Prosthetic Dentistry.

Dr. Keyes enjoys the lifestyle Alberta has to offer and can often be found snowboarding, mountain biking, hiking, camping, or wakeboarding.

Abdo Fares


Abdo Fares was born and raised in Calgary, Alberta. He moved to Edmonton where he graduated with honors as a Denturist in 2002 and received his license in 2005. Abdo has since gone on to run a successful practice in Northeast Calgary.

Abdo is devoted to his patients and to the profession of Denturism. He is a licensing exam assessor for The College of Alberta Denturists and an active member of The NDA, DAA and CAD.

He has been happily married since 2005 and is a father of two beautiful children.  Abdo has a passion for cars, loves to travel and spend time with his family.

Our Hygienists


Carolyn graduated Dental Hygiene from the University of Alberta and joined Sierra Dental in 2003. She loves spending time with family and friends. Carolyn is always up for a new adventure! She enjoys taking road trips, camping, horseback riding, hiking, and anything that gets her out in nature.


Happy was born in the Philippines and grew up in Saskatchewan and Alberta. She went to S.I.A.S.T. Wascana Campus in Regina for both Dental Assisting and Dental Hygiene Programs. She joined Sierra as a Dental Assistant in 2005 and became one of our fabulous hygienists in 2011. Happy loves working with the Sierra team and loves having the ability to work in a practice with cutting edge technology so she can be a part of providing patients with the best dental care imaginable.

In her spare time, she loves spending time with her husband, two daughters and dog, Molly. She enjoys travelling, cooking, playing guitar, and anything that takes her outdoors!


Lisa was born and raised in Okotoks and still presently lives there with her husband and daughter. After having braces at a young age, Lisa became very interested in dentistry and pursed her Dental Assisting education at SAIT. She began working at Sierra Dental in 2005 as a dental assistant. She then returned to school for Dental Hygiene at Toronto College of Dental Hygiene & Aux. and has been working as a dedicated hygienist ever since. She enjoys helping her patients to exceed optimum oral health while making them feel comfortable and safe with her gentle touch.

In her free time, she enjoys spending time with her husband and daughter at their lake view property camping, boating and visiting with family and friends. They also love to travel to hot destinations and make the most of life!!


Lindsay was born and raised in Calgary Alberta and graduated as a Registered Dental Hygienist from the Toronto College of Dental Hygiene. She has worked at Sierra Dental since 2006, starting first as a registered dental assistant and then returning after school as a registered dental hygienist 2009. Lindsay’s main focus is in the prevention and educating her clients on great oral health, she enjoys developing relationships and getting to know her patients.

In her spare time, she enjoys spending time with her husband, son, family and friends. She enjoys living a healthy lifestyle biking, hiking, skiing in the winter and travelling the world!


Amanda has been practicing dental hygiene since 2009. She graduated from the Toronto College of Dental Hygiene and joined the Sierra Dental family shortly after. Amanda loves working with a wonderful team to provide optimal oral health care to her patients.
In her spare time, she enjoys keeping active and has a passion for health and exercise. She loves spending time with her family and travelling.


Veronica graduated with honours from Regency Dental Hygiene Academy in Toronto in 2012 and was awarded the Clinical Excellence Award for her graduating class. She joined the Sierra team shortly after in 2012. Veronica was born and raised on a farm outside of Stettler, AB. She has always had a passion for helping and working with others, which is what initially drew her to the dental profession and has sustained her passion for the field ever since. Veronica received her Dental Assisting Certificate in 2006 from NAIT and her love for the dental profession only grew from there. Veronica loves creating long-lasting and trusting relationships with her patients and helping to achieve not just optimal oral health, but overall health and well-being as well.

In her spare time, Veronica enjoys spending time with her puppy Bubba, yoga, camping, hiking, travelling, teaching hula hoop classes and spoiling her nieces and nephews.


Nina was born and raised in Calgary, coming from a large Italian family. She has been interested in dentistry from a young age, leading her to complete her Dental Assisting Certificate at SAIT in 2010. She decided to further her knowledge and obtained her Dental Hygiene Diploma at the University of Alberta in 2015. She believes that having a trusting relationship with her patients is key to achieving their optimal oral health. Building these relationships with her patients is one of her favourite aspects of being a dental hygienist.

Nina loves to spend time with her partner Duncan and their Boston Terrier named Bruin. She also enjoys travel, fitness, trying new restaurants and hanging out with her family and friends.


Alexa was born and raised in Manitoba. She graduated from the University of Manitoba’s School of Dental Hygiene and was awarded the Endowment Fund Award in Dental Hygiene as well as was inducted into the Sigma Phi Alpha Society for Dental Hygiene. A very positive experience at the dental office when Alexa was a child, lead her to pursue a career in dental hygiene. She has a passion to help others in any way she can while striving for excellence. Alexa spends all her spare time outdoors, which is what lead her to Calgary. Fishing, camping and the mountains are what Alexa enjoys most.


Liisa has been practicing dental hygiene since 2006, graduating from SIAST, Saskatchewan Institute of Applied Science and Technology, with honours, including the Governor Generals Award, and the Golden Scaler Award.

Liisa enjoys working with such an amazing dedicated team, here at Sierra Dental!


Danielle has been practicing dental hygiene since 2014 and graduated with honors from the Toronto College of Dental Hygiene and Auxiliaries.
After working for several years in Toronto, Danielle felt it was time to move back home to Calgary. She joined the Sierra Team in 2020 and spends her free time doing anything that gets her into the outdoors, no matter the season.


Hilary was born and raised in Annapolis Royal, NS. Track & field led Hilary to complete her undergraduate degree in Ohio where she competed in the heptathlon and hurdles. Her interest in dental hygiene stemmed from an early age watching her father care for his patients at his family dental practice. Hilary graduated from the dental hygiene program at Dalhousie University in Halifax, where she received the Hu-Friedy Golden Scaler for Excellence in Clinical Care Award.

Hilary is especially passionate about helping patients with periodontal disease and jumped at the opportunity to join Sierra’s Periodontal Team. She always strives to provide the most comfortable and positive experience for her patients.

In her spare time you’ll find Hilary running with her run club, hiking, skiing down the black diamonds and not shying away from any activity.


Emily was born in Saskatoon and grew up in Calgary. She graduated Dental Hygiene from the Toronto College of Dental Hygiene and Aux. in 2018. Since joining the Sierra team in 2020, she shares the team’s focus on dental health and education by building strong, trusting friendships with her patients — with lots of laughs along the way. Emily has a depth of knowledge on controlling gum disease and improving oral health and always ensures her patients are armed with the best knowledge about their teeth.

In her spare time she enjoys going to the gym, watching Bob’s Burgers, and indulging in the foodie lifestyle of gluttony with family and friends.

Chelsea P

Chelsea was born and raised in Trenton Ontario and graduated as a Registered Dental Hygienist from Algonquin College in Ottawa. She has worked at Sierra Dental since 2019, when she first moved to Calgary from Ontario.
Chelsea’s main focus is helping her patients feel comfortable and educated throughout their dental experience.  She is here to help you reach your optimal oral health.

In her spare time, she enjoys spending time with her friends and family and her miniature pincher, Finny. She has fallen in love with Alberta and enjoys spending her days off snowboarding throughout the winter months and exploring everything out west has to offer!!


Miriam received her Bachelor’s Degree in Dental Hygiene in 2015 and has since worked in BC, England, and now Alberta! Her approach to helping patients achieve their optimum oral and overall health is through prevention and education; helping patients take control of their own health. She loves getting to know her patients and helping them feel comfortable during their time in the dental office.

The mountains drew Miriam and her husband to this beautiful area and they love being outdoors, hiking in the summer and snowboarding in the winter! They look forward to enjoying these experiences with littles ones as their family grows.


Anya originally completed a Bachelor of Science in Exercise Physiology at the University of Calgary in 2016. She then completed her Dental Hygiene Diploma in Vancouver in 2019.

She is passionate about holistic health and loves to motivate and educate her patients. Outside of work she loves to cook with her husband and take long walks with her dog!

Chelsea M

Chelsea has been working in dental since 2009 after graduating from NAIT with a diploma in Dental Assisting. She went back to school for Dental Hygiene and graduated in 2015 from Canadian National Institute of Health in Ottawa. She received the Golden Scaler award for clinical care and graduated with honors. She loves getting to know her patients and helping them achieve their best oral and overall health.

In her spare time she loves anything that gets her outside. Her favourite things include hiking, boating and spending time with her family and dogs.

Our Kids Program


Ginny has been a dental assistant since 2007. She graduated from Southern Alberta Institute of Technology and joined Sierra Dental in 2010.  Since then, Ginny has expanded her skillset and is registered as an orthodontic and scaling assistant. She enjoys learning, teaching, and being able to offer individualized care to her clients.

In her spare time she loves spending time with her family, gardening, beekeeping, and travelling.


Brittany has been at Sierra Dental since 2012 – her entire dental career!
She came here for her practicum after completing her Dental Assistant diploma at Columbia College and felt that Sierra was the perfect place for her to begin her career. Since then, she has completed many continuing education courses including her Orthodontics Module. This helps screen our little patients for early intervention and airway concerns.

Brittany wears many hats at Sierra Dental!  She a Kids Program provider as well as our Assistant Manager and Clinical Trainer.

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