9235 Crown Crest Boulevard, Suite 100, Parker CO 80138

Tel: (303) 695-7667Fax: (303) 695-8146

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Our Physician and Medical Staff

About David Roos, M.D.

Dr. David Roos is a board-certified pediatrician. He received his Bachelor of Science degree in Biology in 1975 from Colorado College. Dr. Roos earned his Doctor of Medicine degree from the University of Colorado Medical School in 1979 and completed his Pediatric Internship and Residency program in Denver in 1982. He joined David Simon, M.D. in 1982 when the practice name was Pediatric and Adolescent Medicine Associates in Aurora, Colorado. The name was changed to KidsAurora.com in 2004 and when we moved to Parker in 2008 we became Crown Point Pediatrics. Dr. Roos has a particular interest in diabetes, care of the premature infant, obesity treatment and the treatment of behavioral and emotional issues, including ADD/ADHD. He is an Assistant Clinical Professor at the University of Colorado Medical School.

Hospital Affiliations/Associations

  • Parker Adventist Hospital, Parker, CO
  • Sky Ridge Medical Center, Lone Tree, CO
  • Medical Center of Aurora-South, Aurora, CO
  • The Children’s Hospital, Aurora, CO
  • Rocky Mountain Hospital for Children, Denver, CO

Board Certification & Commendation

  • American Board of Pediatrics, Diplomat, 1984
  • National Board of Medical Examiners, Diplomat
  • American Board of Pediatrics, Maintenance of Certification in General Pediatrics, December 8, 2009
  • Pediatric Advanced Life Support

Professional Memberships

  • Christian Medical and Dental Association, 1976
  • American College of Pediatricians
  • American Academy of Pediatrics, Fellow
  • Arapahoe-Douglas-Elbert Medical Society
  • Colorado Medical Society
  • American Association of Pro-Life Pediatricians

On a Personal Note:

“I love my wife, Janie, and my children Becky and her husband Pat, Amy and Zachary more than anything else in the world. Janie and I were married in 1980 and we have three wonderful kids who have taught us many important lessons about raising children with love and grace and an open hand.

My faith in God is the source of the love and compassion I offer my patients as a physician. As I treat each patient, the spiritual life of each individual is considered an integral part of his or her physical and emotional well being.

I enjoy music and playing my Martin guitar and singing oldies or Christian worship music with my friends and family. I love taking walks and gardening with my wife Janie and we go skiing each winter as often as we can. We also like traveling and discovering new places around the world.

I have been an elder at Greenwood Community Church since 2000 and have seen how important faith is to the lives of children and their parents. In the past, Janie and I have taught Sunday school classes for two and three year olds. Now we are involved in the Stephen’s ministry at church to come alongside people in their time of need.”

- David Roos , M.D.

About Vona Lantz, C-PNP

Vona Lantz is a Board-certified Pediatric Nurse Practitioner (PNP). She received her Nurse Practitioner education at the University of Colorado Health Sciences Center, graduating in 1993 with a Master’s of Science Degree in Nursing. She is certified as a Pediatric Nurse Practitioner in Primary Care through the Pediatric Nursing Certification Board. She completed her undergraduate nursing education at Loretto Heights College in Denver, Colorado.

Vona joined Crown Point Pediatrics in 1993. Prior to this, she practiced as the Assistant Nursing Director on the Neurosurgical Unit at The Children’s Hospital in Denver, Colorado. She is a member of the National Association of Pediatric Nurse Practitioners and has served as secretary and president of the Colorado chapter.

Vona has a special interest in well child care, preventative health medicine, immunizations for children and adolescents, obesity and nutrition, and dermatology.


  • Advanced Practice Registry of the Colorado State Board of Nursing
  • Prescriptive Authority by Colorado State Board of Nursing
  • PALS (Pediatric Advanced Life Support)
  • Pediatric Nursing Certification Board

Professional Memberships:

  • National Association of Pediatric Nurse Practitioners (NAPNAP), Associate Member
  • Colorado Rocky Mountain Chapter of NAPNAP

On a Personal Note:

“I am a Colorado native. I am very interested in health, fitness, and nutrition. I enjoy climbing Colorado fourteeners, mountain biking, and traveling. I love spending time with my family and friends and my 2 english bulldogs.”

- Vona Lantz, CPNP

About Jaime Fell, PA-C

In 1999 I earned my undergraduate degree in Biology at Colorado State University. I then completed the Child Health Associate/Physician Assistant Program at the University of Colorado Health Sciences Center in 2003. In November 2004, I became a part of the wonderful team here at Crown Point Pediatrics. I went on to earn my Masters degree in Physician Assistant Studies from the University of Colorado in 2007. I have a passion for working with children and their families, and I’m grateful that every day I get to come to work and do what I love. I am newly married. My husband and I love to hike and ski, of course.

Professional Memberships:

  • Colorado Academy of Physicians Assistants
  • American Academy of Physicians Assistants

On a Personal Note:

“I am a Colorado native and I really enjoy the outdoors. My favorite activities include skiing, camping and wakeboarding. I also love to take my dog hiking in the mountains. My other interests include scrapbooking and reading. I have a great passion for the field of pediatrics and am especially excited about working at Crown Point Pediatrics.”

- Jaime Fell, PA-C

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