A.J. Peak


Founded Peak Dental Services in 2008. Under A.J.’s leadership the company has been recognized as one of Inc. Magazines Top 5000 fastest growing companies. He has been 1 of 3 finalists as Small Business Person of the Year by the Pikes Peak Small Business Development Center. A.J. received his MBA from The Kellogg School of Management at Northwestern University and BA in Business Administration from Carnegie Mellon. Prior to starting Peak Dental Services, A.J. worked at Merrill Lynch as a senior business analyst and with McKinsey & Company for 7 years as an Engagement Manager. While with McKinsey & Company he supported over twenty Fortune 500 C-suite executive teams on a variety of strategic initiatives ranging from service operations, pricing, strategy, and M&A. In his free time, he enjoys spending time with his wife, training for triathlons, and reading nonfiction books.


Peter van Riper

Chief Financial Officer – Board Member

Prior to joining Peak Dental Services both as an investor and CFO, Peter was the CFO of Firstsource USA, healthcare outsourcing business and CFO of Privia Health, a physician-group management start-up. In addition, he was Vice President Accretive Health whereby he held roles in Finance, Operations., and New Product Development while the company went through the startup phase to IPO. Earlier in his career he spent time working for the Advisory Board as well as a consultant with the Boston Consulting Group. He has a BA from Brown University, MA in International Economics from Johns Hopkins, and MBA from Wharton.

Outside of work, he spends time with his wife Kris, and their three sons managing a busy schedule of many activities, including sailing on the Chesapeake.

Dr. Scott Frederick

Dr. Scott Frederick

Clinical Director

Dr. Frederick has been with Colorado Dental Group since 2011. He is a member of the AGD, ADA, CDA, American Academy of Clear Aligners, MDDS, and Colorado Springs Dental Society.

Dr. Frederick is married to Dr. Anna G Frederick. Together they have a daughter, Zoe, a chocolate lab named Elphaba, and another rescue dog named Stella. In his spare time, Dr. Frederick like to play tennis, go curling, go fly fishing and go skiing and snowboarding with the family. He also enjoys volunteering as a coach for U7 girls soccer for the Colorado Springs Pride Soccer Club.

Dr. Douglas Peak

Dr. Douglas Peak

Clinical Director – Board Member

Long before Peak Dental Services, Douglas Peak was a kid in rural Minnesota working his way through dental school by helping his dad, a carpenter, build & design houses. Interestingly he now spends much of his time designing & building dental practices. Dr. Peak opened his first practice based on the values of putting patients first and creating an environment in which his employees felt valued. Back in Minnesota, his most junior employee was with him for over 15 years! In 2003, he & his wife decided to make the move from Minnesota to Colorado Springs to be closer to their two granddaughters.

Dr. Peak is a graduate of the University of Minnesota Dental School, Former Naval Officer, and has his fellowship in the Academy of General Dentistry.
He has been married to Kathy Peak for over 40 years. They have two sons, David and A.J.

Amber Collins

Amber Collins

VP of Operations

Amber started with Peak Dental Services in 2009 and has held several roles within the company from Patient Coordinator, Specialty Coordinator, Accounts Receivable Manager, to General Manager. She is a graduate from Regis University and currently pursuing her EMBA. Her passion is coaching, developing and leading teams.

Amber was born and raised in Colorado Springs. She started dancing at the age of 4 and was a dance instructor and coach for many years. She loves running the Disney Princess Half Marathon yearly, and spending time outdoors hiking with her husband as well as her 3 fur children.


Andrea Small

Regional Director of Operations

Andrea is the general manager for Colorado Springs.  She is a skilled operations leader with extensive experience managing a wide spectrum of operational activities within a dental support organization. Andrea holds a bachelor’s degree in Engineering Design and Associates in CADD from Cameron University.

When Andrea is not working, she loves spending quality time with her family.  Andrea married her high school sweetheart, Reggie of 12 years.  They have 2 beautiful kids, Reganice and little Reggie.


Anita Gomez

Regional Manager – North Denver

With 16 years of experience in the dental field, Anita is passionate about being a practice manager. One of the things she enjoys most about dentistry is to see how changing a patient’s smile can transforms their life. Anita has a husband and two sons that enrich her life every day. Whether it’s traveling or playing around the house, they make her heart smile.


Michael Robinson

Regional Manager – Northern Colorado

Michael is a Colorado native. He attended the University of Northern Colorado, where he received his bachelors in Marketing, and a minor in Speech Communication. His favorite part about working in the dental field, is helping change patients lives. Outside of the office, he enjoys spending time with his family, riding motorcycles, and is known to be a sports junkie.


Jody McGrath

Regional Manager – South Denver

Jody began her career as a nurse and after the birth of her first son made the transition over to the dental field and never looked back. She joined Peak Dental in 2015 with 26 years experience as a Practice Manager. She is passionate about getting to know all of our patients and making sure they receive the best care possible.

She married her high school sweetheart Dale and together they eave 2 sons, Kyle and Sean. In her leisure time she is an avid reader, loves to travel and enjoys spending time with her Min Pin, Pepi.

Tamara Cook

Tamara Cook

VP of Recruiting and Business Development

Passionate about helping dentists find the next step in their career, Tamara has over twenty years of recruiting and consulting experience.  Outside of work you can find her spending time with her husband Chris, their daughter Riley and new labradoodle puppy Crosby.  She holds a second-degree black belt, loves boot camp class, hot yoga, hiking and wine (in that order) and is eagerly anticipating the return of Game of Thrones!


Casey Brunson

VP of People & Learning

Casey joined Peak Dental Services in late 2016 and is excited by Peak’s rapid growth and the limitless opportunities available to top performers.  She believes in Peak Dental Services’ six core values and is committed to putting the experiences of doctors and patients first.  Her role engages her in the continual process of championing a high performance organizational culture that is both fun and exciting.

Prior to joining Peak in 2016, Casey worked in many Fortune and US News & World Report ranked organizations as a member of the human resources leadership team.  She is certified as a senior professional in human resources by the Society for Human Resource Management and the Human Resources Certification Institute.

Casey is a licensed attorney in Alabama and Mississippi and devoted University of Alabama fan, supporting her alma mater with pride.  Roll Tide!  That said, all good HR people understand the importance of equity and fairness.  You might also catch her saying “War Eagle”, as she will be completing her MBA with a concentration in Finance from Auburn University in the fall.


Jill Mattingly

Financial Controller

Jill enjoys bring life to accounting through her passion to serve in helping people live their lives the best way they can. She does this with her love of numbers and translating those into tools that allow non-number people make decisions that enable them to live their passions. Prior to joining Peak Dental Services, Jill served in the government contracting industry as well as the health industry which included serving as controller of ClearChoice Dental Implant Centers. Jill spent her early career with KPMG which included building a US tax practice in Switzerland.

When not working, you can find Jill racing her bicycle, taking care of her chickens, or planning her next Disney World trip.


Sarah Medina

Director of Operations for Shared Services

Sarah has worked in the dental industry for 13 years, joining Peak Dental Services in 2013. She has since served the organization in various leadership roles, while constructing best-in-class receivables processes, developing and executing staff training programs, along with establishing and expanding our Shared Service Center. As Director of Operations for Shared Services, Sarah manages our Accounts Receivable team and Shared Services Center. In her free time, she enjoys spending time with her husband, three kids and two dogs. When she’s not enjoying hobbies such as hiking, painting or nature photography, she can be found engrossed in a Lord of the Rings or Star Wars marathon.

Abby Zinman

Abby Zinman

Marketing Director

Originally from Indiana, Abby joined the Peak team in 2017. Prior to this, she worked for Dish Network managing their social media marketing program, and also has experience in marketing for nonprofits as well as freelance marketing work. Outside of work, she loves doing anything to take advantage of the beautiful Colorado outdoors including skiing, hiking and camping, and also enjoys reading books in just about any genre or topic.

Amanda Mendoza

Amanda Mendoza

Hygiene Coaching

Striving to be above the standard, Amanda has over 17 years of experience as a practicing dental hygienist. She has had the opportunity to be exposed to the many different facets of dentistry ranging from Periodontal to Reconstructive Dentistry and everything in between. This along with countless hours of continuing education has helped shape her into the hygienist she is today. She is passionate about supporting her team to create a hygiene department that exceeds every expectation. Outside of work you can find her spending time with her husband Richard, and their six children, (ranging from teens to toddlers) or cheering their kids on at one of their many activities ranging from sports to musical. As a family they enjoy exploring Colorado, fishing (lake and deep sea), visiting family in San Diego, hitting the beach, and shopping at farmer’s markets. She relishes every second of their hectic, nonstop life together as they live by the words “Do the best you can until you know better. Then when you know better, do better.” – Maya Angelou


Nikki Cordova

Dental Assistant Coach & Dental Supply Manager
Instructor – Colorado Dental Assisting School

Nikki’s passion is giving those who desire a perfect smile, the reason to smile. Her favorite thing to do is laugh, and have been told you can hear it coming a mile away. Nikki has been instrumental in building the Colorado Dental Assisting School from the ground up, installing efficient dental supply management process across Peak Dental Services network of offices, and serving as Dental Assistant Coach to Peak Dental Service’s network of offices.

Outside of work Nikki enjoys spending time with her 2 daughters and husband. You can find her outdoors, watching football and enjoying the Colorado Breweries.


Natalie Robinson

Manager – Colorado Dental Assisting School

Natalie is an exceptional member of our team. She offers an amazing chair side manner along with creativity and high organizational skills. If you need a check list, she’s the one to give it to you! Natalie is a trained Expanded Duty Dental Assistant. Natalie’s primary focus is on Managing the Colorado Dental Assisting School and instructing students for success while overseeing the Colorado Springs market scheduling for all employees. She has been with the company for 5 years and has helped hire and train some of our dental assistants.


Christa Sullivan

SSC Manager

Christa works in the Shared Services Center as member of the Accounts Receivable Department & Colorado Dental Assisting School, as well as manages the iCare financing for all of our offices. Christa assists our offices with questions relating to billing, insurance payments and claims, and helps process all applications and payments for iCare Financing.

Christa was born and raised in Colorado Springs. She is engaged to her fiancé, David (of seven years) and have two children; Derek (their son) and Gunner (their English Bulldog, whom they refer to as their oldest child). When Christa is not working at the Shared Service Center, she can usually be found at the nearest baseball field watching baseball with David and Derek, or watching David play baseball.


Matt LaMunyan

Call Center Technical Lead

Matt was born in Germany, and has spent a spent a majority of his life moving between Colorado Springs and Daegu, South Korea, as his father was in the US Army. He attended Colorado State University-Pueblo and earned a BS in Exercise Science. While in college, he was a member of Lambda Chi Alpha Fraternity. When he’s not at work, Matt loves spending time in the great outdoors, hiking and camping and just exploring the great state of Colorado. He enjoys spending time in the kitchen, cooking and trying new cuisines.


Gloria Bohne

AR Onboarding and Specialty Manager

Gloria is the Onboarding Lead Specialist for Peak Dental Services and part of the Accounts Receivable team. She assists our offices by being involved with the onboarding of newly joined practices. Born into a military family, she has lived back and forth between the U.S. and S. Korea. When Gloria is not staring at numbers all day, she can be found watching all sorts of TV shows, traveling the world, discovering new eateries, and enjoying the beautiful mountains in Colorado and Washington. 

Jennie Chittenden

Jennie Chittenden

AR Analyst

Jennie has been with PDS since 2015 and has watched the company double in size. She loves being a part of such a fast paced, fast growing business that offers great challenges and great rewards. So much so that after leaving for 6 months she came running back. Jennie obtained her Bachelors of Science in Business Administration from DeVry University in 2006.  When not at work she enjoys spending time with her husband, Don, and 2 children exploring the beautiful Colorado scenery, biking, and camping.



AR Support Specialist

Lisa, a Customer Care Specialist, has over 5 years of experience in the dental administration field. She strives to make sure the patients get the best customer care possible. Outside of work Lisa is wife to Paul, Mom to Meagan, Bryce, Amber, and Connor, and Grammy to Lincoln. She enjoys spending time with family, cooking, reading and traveling anywhere she can dip her toes in the ocean!

Amber Puentes


AR Support Specialist

Born and raised in California Amber started working for an ortho practice when she was sixteen. She moved to Colorado in 2008, and became a stay at home mom for almost ten years. She just reentered the work force and is loving being back in the dental field. When not at work she enjoys just being a mom to her four children, Aidan, Sophia, Bella, and Blake.



AR Support Specialist

Mylie has been with PDS since June of 2018. She has worked multiple rolls on the AR team ranging from Credentialing to Accounts Receivable. She was a stay at home mom for 15 years and just reentered the workforce last year. She and her husband, Heath, have been happily married for 17 years and have a son named, James.

During her spare time, she enjoys catching a movie, crafting, and playing cards.


Onboarding Specialist

Nadine was born and raised in Colorado. She has over ten years customer service experience and has been in the dental field over four years. She has knowledge working for an insurance company as well as in a dental office. When she isn’t working, Nadine can be found spending time with her son Evan.


Onboarding Specialist

Johana was born in California and moved to CO at the age of 13. She’s married and has 6 kids 3 boy and 3 girls as well a Paw baby by the name of Bandit. Johana previously worked for a dental insurance company and has over four years of dental insurance experience. On her down time, she loves spending time with her husband and kids watching movies or enjoying the outdoors.


Patient Care Specialist

Lindsey started her dental career with the Colorado Springs Dental Assisting School, she worked clinically for a while before transferring over to the administrative side of things. Lindsey grew up as a military child, and has traveled all over the world. In her free time, Lindsey enjoys traveling, spending quality time with her family and daughter, Allyna, and enjoying what Colorado has to offer.

Nicole Cummings and brother


Claims Submission Specialist

Nicole is originally from California but has lived in Colorado Springs for most of her life.  Nicole has been in the dental field since 2010 and likes the insurance side of dentistry. In her free time, she enjoys Starbucks and shopping. She also loves going to concerts, especially at Red Rocks.



Claims Follow-Up Specialist

With 10+ years of customer service experience, Meagan enjoys making sure patients are well taken care of. Meagan is a wife to Ian and mother of 1 sweet boy named Lincoln and 2 very rambunctious dogs named Farney and Azuzu. In her spare time, Meagan  enjoys reading, swimming and spending time with her family.

Jennifer Baldwin


Claims Follow-Up Specialist

Jennifer has been in the dental field for over 10 years as a Patient and Treatment Coordinator, Accounts Receivable Specialist, a Manager, and is now back on with Shared Services. She loves being a part of the high paced environment and helping with projects behind the scenes.

Jennifer grew up in a military family before they settled in Colorado so she isn’t a native, but got here as fast as she could! She graduated from Doherty High School in 2003. Jennifer has a husband and 3 children. Her passions are her family, travel, art, reading, and food. She loves spending time outdoors hiking in our beautiful state. When she isn’t being as active or running kids to football, theater classes, or the pool she absolutely loves to cuddle with her fur babies.

Fabiola Soto-Farmer


Claims Follow-Up Specialist

Originally from El Paso, Texas. Fabiola moved to Colorado Springs two years ago with her husband and son. She attended New Mexico State University where she graduated with a Bachelor of Arts in Political Science. While attending NMSU she was also a member of the Delta Zeta sorority. After college she worked for two specialist doctors in El Paso, she scheduled the patient’s surgery and appointments. Fabiola enrolled in the Dental assisting school to help her have a better understanding of the dental field. In her spare time, she enjoys reading and exploring book stores.


Claims Follow-Up Specialist

I am a wife and mother of five children living in San Diego CA. I started in dentistry in 2000 as a sterilization tech. I have been an assistant, a front desk administrator and a treatment plan coordinator throughout my dental career. I also managed a few dental offices in Georgia and Colorado. I originally worked for Peak from 2014-2015. I have a degree in business management and accounting. I am currently working on my Master’s Degree in Human Resource Management with an emphasis on Organizational Learning and Development.


Claims Follow-Up Specialist

As one of our newest employees, Tiffany is ecstatic to be a part of Peak Dental Services. Tiffany has worked as an insurance coordinator for two other offices while she studied in college and is excited to put her experience to use. She has a passion for the dental field and hopes to study dental hygiene someday.

In her personal life, Tiffany enjoys spending time with her family; cooking and in her limited spare time, loves catching up on her shows. Being a San Diegan native, is excited to be outdoors in warmer weather. Her family recently moved to Colorado Springs on her husband’s military orders and because they love the area, plan to stay after his enlistment.

Sonja Fisch


Call Center Specialist

Sonja is a native here in Colorado Springs, Colorado. She has been in the dental field for over 16 years and enjoys every second of it. Sonja is married to her best friend Brian and has a rambunctious beautiful teenage daughter Aaryanna that definitely keeps her on her toes. She also has two amazing handsome step boys Justin and Anthony who she adores. Sonja enjoys spending her free time with her family exploring this beautiful state and watching her daughter excel in softball.

Sandra Carmona


Call Center Specialist

Prior to joining Peak Dental Services, Sandra was a Dental Assistant for four years. She is passionate about oral health and her favorite part of her job is helping patients with anything they might need regarding their dental needs. Sandra was raised in western slope Colorado, she loves coffee and spending time with her family. in her free time, she enjoys all the outdoor activities Colorado has to offer.


Call Center Specialist

Jodi has been with Peak Dental Services since November 2018. She will be celebrating her tenth wedding anniversary this September. Her husband and her have three beautiful kids together. A 13-year-old daughter, 12-year-old daughter, and 8-year-old son that has special needs. After spending 7 years at home with him and though she loves her babies, she is super happy to be back out into the workforce and it makes it even better that she gets to help people.