Nicholas J. Krebs, MD

The practice of medicine is an art, not a trade; a calling, not a business - a calling in which your heart will be exercised equally with your mind.

Originally from

Eden, NY (suburb of Buffalo)


University of Rochester, Rochester, NY

Medical school

Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, OH

Pediatric residency

The University of Colorado, Children’s Hospital Colorado and Denver Health Medical Center, Denver, CO

Organizations I belong to

  • American Academy of Pediatrics
  • American Board of Pediatrics


My family and friends would describe me as an audiophile and beverage fanatic. Sipping a well-crafted espresso or cocktail while listening to vinyl etched with the music of jazz, the blues, or rock-n’-roll takes me to my happy place. Coffee has restorative healing powers and music connects people in ways like nothing else can. My family and I enjoy exploring the mountains, especially those in and around Leadville. Retreating into the calm of nature helps us reconnect and it gives our kids an appreciation for preservation. Finally, you may find Melissa and I scouring local antique shops for old treasures that each have a fantastic story to tell.

Why I chose pediatrics

I chose to become a pediatrician because there is no more noble an effort than to care for children and foster their spirit for life. Children are the joy of the world, they enrich our lives, and they teach or remind us to enjoy the simplicities life has to offer. The questions they ask are profound, even if it’s a simple ‘why is that?’ or ‘how does that work?’. They understand even when we think they may not. Also, kids have a resiliency that makes every ounce of energy we can give them worth it. Their innocence is paramount to protect. Most of all, it’s a privilege for me to share in the lives of so many children and their loved ones; having an impact on a life is what matters most to me.

How parenthood has affected my practice as a pediatrician

Watching my two girls grow and develop has given me a front-row seat to my profession. Raising children has given me a better understanding of the complexities kids present to their parents. No question, understanding how to weave together medical and parenting knowledge has made me a better pediatrician. It’s made giving advice to parents in my practice feel more approachable and relatable.

Additional experience & certifications

My special interests and experiences within pediatrics are: 1. caring for children with complex medical needs (e.g. NICU graduates, complex congenital heart disease, genetic disorders); 2. understanding the spectrum of typical and atypical development and learning; 3. growth disorders; 4. adolescent physical and emotional health, including LGTBQIA+ care.

Home Life

I have been married to the love of my life, Melissa, for nearly 20 years. We have two wonderful girls, Addie and Maggie. As your children grow, the old adage: ‘the days are long, but years short’, becomes more and more true! I fell in love with Colorado after graduating high school while vacationing and seeing the West. I knew instantly Colorado was going to be the place I would someday call home. As fate would have it, Melissa, a Colorado native and graduate of Cherry Creek High School, was the first person I met at college the morning of Freshman move-in day. Fast forward…here we are! Melissa is currently a professor of Chemical and Biological Engineering at Colorado School of Mines. She also founded and is CEO of GelSana Therapeutics, a biotech start-up, which focuses on biomaterials and drug-delivery applications for wound healing. Our children love to read, play, spend time outdoors, and hang out with their grandparents.

We support moms through the 4th trimester.

We believe a healthy start is the best start, so we want to make sure both mom and baby are well cared for during their “4th trimester.” We give moms extra attention and support, including on-site lactation appointments with our physicians, so mothers can find balance, build strong bonds with their babies, and have a joyful experience.

We help parents grow and learn together.

One of the ways we build community and support parents is by hosting regular educational webinars. We cover a variety of topics and give parents the opportunity to ask questions and to learn from each other.

Finding your way as a parent

Our blog combines our medical expertise with our personal experience as moms to help others on their parenting journey.

We are still offering family flu vaccines!

COVID Vaccine FAQ’s

The Pfizer COVID-19 vaccine is coming to Castle Pines Pediatrics!

We are currently not accepting any new patients at this time.Request Appointment