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Meet the Team

Thomas Pham MD

Thomas Pham MD

Internal Medicine & Pediatrics


Dr. Pham was raised in Wichita, KS after immigrating to the States at 4 years of age. Growing up, his parents taught him the value of hard work and a good education. Dr. Pham went to the University of Kansas for undergraduate and medical school. Then he hopped the Kansas-Missouri state line to do his Med/Peds residency at the University of Missouri – Kansas City. After graduating from residency, he joined the faculty and went on to publish research, present at international meetings, and chair residency committees. Dr. Pham came to Denver in 2014 for a change in his medical practice; and of course, to experience the great outdoors. He created Pinnacle in 2018.

Dr. Pham lives in Denver. He enjoys reading, tech, outdoor activities like camping, hiking, and skiing. He also tries to stay fit by training for triathlons.

To start your telehealth appointment CLICK HERE

Stacey Boser MD
Internal Medicine & Pediatrics

Dr. Boser was born and raised in Calgary, Alberta, Canada.  She received her Master of Science in Respiratory Pathophysiology and Undergraduate Medical Degree from the University of Calgary.  Dr. Boser then completed her Residency in Family Medicine on the other side of Canada at Dalhousie University in Halifax, Nova Scotia.  Missing home, she returned to the Calgary area to practice Family Medicine for the past 16 years. She has a special interest in addiction medicine but really loves all aspects of Family Medicine - taking care of the newborn to the elderly.  In her opinion, prevention is one of the most important aspects of Family Medicine.


At the end of 2021, she made the big and difficult decision of moving the family to Colorado when her husband was offered job.  Together they have a 13 year old son and twin daughter, a 9 year old daughter, and a small dog.  She enjoys watching her kids participate in figure skating and hockey, and going to Avalanche games.  Her second favorite hockey team is the Calgary Flames.

To start your telehealth appointment CLICK HERE

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Lauren Rosso PA-C

Internal Medicine & Pediatrics

Lauren Rosso is a certified Physician Assistant who was born in Upstate New York and has lived in Colorado since 2017. She received her undergraduate degree in Radiation Therapy from Upstate Medical University in 2015. After working as a radiation therapist in oncology for over three years she earned her master’s degree to practice as a PA from Yale University. She thoroughly enjoys being a pediatric and internal medicine PA because it allows her to work closely with the entire family. She has special interests in lactation and breast-feeding support, as well as preventative medicine and encouraging patients to work towards whole body wellness. 


Lauren lives in Aurora with her husband, young son and two Australian Shepherds. She enjoys reading, trips to Target, board games and going to Colorado Avalanche games. 

To start your telehealth appointment CLICK HERE

Carli Luevano MA

Carli was born and raised here in Colorado. She has been a medical assistant since 2015. She began her career working at another Pediatrics and Internal Medicine clinic after graduating from PIMA Medical Institute as an honor graduate. Before then, she was a daycare assistant and taught preschool for three and a half years. While she absolutely loves working with children, she enjoys helping people of all ages, being compassionate and using her skills to help others. She is excited to be a part of Pinnacle Pediatrics & Internal Medicine and to continue giving excellent patient care. 


Carli lives in Brighton with her daughter. She enjoys cooking, shopping, walks with her daughter and spending time with family.

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Amber Ruiz RN

Amber was born and raised in Wisconsin. Growing up, she worked with kids by tutoring elementary school children and providing nanny services. She went on to nursing school and graduated in 2017 with high honors. Afterwards, she moved to New York City to start her career as a pediatric nurse. There, she worked in a variety of setting including, schools, day camps, hospital pediatric units, and outpatient clinics. With a passion for working with children and their families, she loves taking care of patients of all ages.

To better enjoy nature and all the mountains have to offer, she moved to sunny Colorado where she resides in Denver. She enjoys hiking, running, paddle boarding, yoga, and going to see shows at Red Rocks. Her German Shepherd puppy keeps her and her partner busy and active during their free time. 

Kristen Klenk MA

Kristen is a Colorado native as well as a veteran of the US Army. She graduate from PIMA Medical Institute in 2011, with honors, and it brings her great joy to be a medical assistant. With 6 years of experience in Pediatrics and Internal Medicine, she loves helping families as they grow. She took a Certified Lactation Educator course in 2019, allowing her to focus on lactation consultation, which holds a special place in her heart when she can help families on their breastfeeding journeys. Kristen is very happy to be back with Pinnacle Pediatrics and Internal Medicine team.


Kristen adores living in Colorado, taking advantage of all it has to offer. Sharing it with her husband, son, and daughter, she enjoys snowboarding, hiking, yoga, and cooking. Her favorite place to visit is Breckenridge.  

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Beth Carpenter

Beth Carpenter


Beth has had many roles in the health care field including front desk staff, medical assistant, and payroll expert; but she specializes in billing. She once owned a medical billing company in her native California before she moved to Colorado. For over 10 years now, she has worked in the pediatrics and internal medicine arena, helping patients with all types of billing questions​ including explanation of benefits, what services are covered, and setting up payment plans. She is excited to be part of Pinnacle as your billing advocate. She can be reached for billing questions throughout the work week at 720-441-2111

Beth moved to Colorado in 1998 to enjoy the active lifestyle. Outside interests include sewing, cooking, and sports of all kinds.

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