Nuby Pediatrics is a family oriented practice where making children feel safe, happy and well is our number one priority! Also making sure they know that "the Doctor" is there to help them, not hurt, (even if it does just a little bit). Our goal is to make sure our children and your children grow up healthy, safe and happy and hope they learn to understand that the visit to the doctors' office is not a sentence of doom but rather an enjoyable experience.

We, the staff here at Nuby Pediatrics, make it our personal mission to make sure every child, whether visiting for a wellness or physical check up or because they are already ill, leaves the office knowing "Dr Nuby-doo" is their friend and is there to help.

Meet the Staff

Dr Marquis Nuby

Dr. Marquis Nuby, is in process of re-certifying for his Board Certification in Pediatrics. He has been in medicine for 18 years, treating children exclusively for 15 years. He has two children and has lived in Denton, Texas for 7 years. When not treating children, Dr. Nuby enjoys basketball, dancing and listening to jazz. Come by and meet the Doctor.

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Dr. Theresa Mutzig-Erwin

Dr. Erwin came to us at Nuby Pediatrics originally in early 2009 as a Locum tenems pediatrician. She ended up loving the practice enough that she didn't want to leave, and permanently joined the practice in October 2011.

Dr Erwin holds a BA in Russian Language and a BS in Biology. She attended medical school at the University of North Texas Health Science Center in Fort Worth. She then completed a traditional rotating internship at the Dallas/Fort Worth Medical Center of Grand Prairie. That was the turning point that convinced her she wanted to focus on Pediatrics. Her training then took her to the third largest pediatric residency program in Texas at the time, Driscoll Childrens Hospital in Corpus Christi, Texas. She came back to North Texas in 2003 and as a Newborn Nursey Hospitalist, helped manage the General Nursery at Harris Methodist Fort Worth. At the adoption of her daughter in 2006, she decided to pursue Locum tenems Pediatrics, in order to balance home & work.

Dr Erwin sees patients on Mondays, Wednesdays, and Fridays.

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Our Front Office Staff

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Our Medical Assistants

Crystal, has been an MA for 2 ½ years and been solely in pediatrics. She has worked for Nuby Pediatrics for 1 ½ years. She lives in Denton with her daughter.