Licensed, Board-Certified Pediatricians with Years of Experience

All of the physicians at Jefferson Pediatrics are licensed, board-certified pediatricians with more than 50 years of combined experience seeing patients firsthand.

Principal Physicians


Michael Glines, M.D.

I grew up in northern New Jersey.  I went to the University of Rochester, in Rochester, New York, for my undergraduate studies. I came to St Louis in 1969 to attend the Saint Louis University Medical School.  Upon graduation I chose to specialize in pediatrics and spent three years at Cardinal Glennon Hospital to learn about my chosen field.  I was the chief resident in my final year.

My entire professional life has been spent in the greater St Louis area. My first year of private practice was in south St Louis county, and then in 1976 I began my solo practice in Jefferson County.  In 2002 I moved my practice to its present location on Old HiWay 21 at Jefferson Pediatrics.

I have two sons and three grandchildren. I enjoy gardening, bike riding and caring for my salt water fish tank. I mainly enjoy avidly following the exploits of the St Louis University basketball Billikens, the St Louis Cardinals and the St Louis Rams.


Betty Cross, M.D.

I am a Kansas native. I grew up in Lawrence, Kansas, and earned a BA in Biology at the University of Kansas. I then attended KU Medical Center where I earned my M.D. in 1983. In 1986, I completed a pediatric residency at Baylor University in Houston, Texas. I have been practicing Pediatrics in the St. Louis area since then, and was delighted to have the opportunity to join Jefferson Pediatrics in 2009.

I am Board Certified in Pediatrics and am a Fellow of the American Academy of Pediatrics. I have received the Physicians Recognition Award from the American Medical Association.

I am a lifetime member of the Girl Scouts of America and have enjoyed volunteering with my daughter’s troop. I love the outdoors: camping, canoeing, gardening, hiking, and taking daily walks. I enjoy studying and working with gems and minerals, and I have used them in making jewelry.


Marsha Vedova, M.D.

I graduated from the Ohio State University School of Medicine and Public Health in 1998. I completed my residency training in Pediatrics at Cardinal Glennon Medical Center in 2001 and am board certified in General Pediatrics. I have been with Jefferson Pediatrics since 2002.

I grew up in rural Ohio, the youngest of seven children. I met my husband Mick in Cincinnati. We were married in 1994 and then moved to Missouri for my residency in 1998. The Vedovas, having two children both born after moving to the area, now call Missouri their home. Our family is very involved with Jubilee Church, St. Louis, as well as school, music and scout activities with our kids.

COPE Program

Jefferson Pediatrics participates in the COPE program through Children’s Hospital. In the program medical school graduates who are pediatric residents at Children’s Hospital join our practice for three years for one-half day each week. First, the residents shadow a principal physician and then eventually begin seeing patients on their own. By participating in the COPE Program, Jefferson Pediatrics helps give back to the medical community by training residents on the day-to-day activities associated with working in a practice dedicated to pediatrics.

Current COPE Residents:


Cynthia Baszis, M.D.

I was born and raised in St. Louis with my two older brothers.  I moved to Kansas City to attend college and medical school at UMKC, and I spent a short time in Sweden to complete my bachelor’s degree in Liberal Arts.  I continued my training as a pediatric resident at St. Louis Children’s Hospital, and I am now in my third and final year.  I am currently interviewing for a Pediatric Emergency Medicine fellowship, and I ultimately plan to continue my career at an academic institution.

In my free time, I enjoy time spent outdoors, including taking long hikes in the woods.  I love to travel when I have time off, and I have most recently traveled to Arizona and visited the Grand Canyon.  I also love to spend time with my family and boyfriend.


Dan Willis, M.D.

I was born and raised in Lenexa, Kansas just outside of Kansas City. I attended Benedictine College in Atchison, Kansas for my undergraduate degree before returning to Kansas City for Medical School at the University of Kansas. I am now in my first year of pediatric residency training at St. Louis Children’s Hospital. Although I have yet to decide my specialty, I am considering pediatric oncology, neonatology and hospitalist medicine.

I enjoy watching movies, running, outdoor activities, and hanging out with friends. I am a big sports fan especially KU basketball. Rock Chalk Jayhawk!

I met my wife, Amber, as an undergraduate, and we have been married for 3 years. We just moved to St Louis this past summer and are enjoying exploring the city. We are also welcoming our first baby boy into the world this year.