Dr Susan Betts-Barbus
graduated from Michigan State University College of Human Medicine. She completed her Pediatric Residency at the University of Michigan in Ann Arbor. She served one year as Chief Pediatric Resident at the University of Michigan Children's Hospital in Ann Arbor. She and her family have lived in Cadillac since 1986. She is Board Certified in Pediatrics and is a member of the American Academy of Pediatrics and the Michigan State Medical Society.


Dr. Gerald Herring
graduated from the University of Michigan Medical School. He completed his Pediatric Residency at the University of Michigan in Ann Arbor. He also served an additional year as Chief Pediatric Resident at the University of Michigan Children's Hospital. He and his wife have lived in Cadillac since 1990. He is Board Certified in Pediatrics and is a member of the American Academy of Pediatrics and the Michigan State Medical Society.


Dr. Elizabeth Rzepka-Alto
graduated from the University of Michigan Medical School. She completed her Pediatric Residency at the University of Michigan in Ann Arbor. She is a native of Cadillac and graduated from Cadillac High School. She is Board Certified in Pediatrics and is a member of the American Academy of Pediatrics and the Michigan State Medical Society.


For the 11th year Dr. Betts Barbus has been selected to the Best Doctors in America database.
Visit Best Doctors.com for more information on this database.

For the 11th year Dr. Herring has been selected to the Best Doctors in America database.
Visit Best Doctors.com for more information on this database.

Susan Betts-Barbus MD • Gerald Herring MD
Elizabeth Rzepka-Alto MD • Angela Trucks MD •Megan Santangelo MD
Joseph Santangelo MD
Mary Blackmer FNPBetsy Krchmar PA-C

Dr. Angela Trucks
graduated from the Michigan State University College of Human Medicine and completed her Pediatric Residency at Wayne State University in Detroit. She is a native of Reed City and graduated from Reed City High School. She is Board Certified in Pediatrics and is a member of the American Academy of Pediatrics and the Michigan State Medical Society.


Mary Blackmer MSN, FNP
graduated from Michigan State University School of Nursing. She has a Clinical Masters Degree in Nursing and is Certified as a Family Nurse Practitioner. She has over thirty years experience in nursing including acute care and community health. She and her family have lived in Cadillac since 1979.

In 2003 Mary received the
"Women Who Make a Difference" award from the Oasis Family Resource Center.

In 2004 Mary recieved the
"Spirit of the Community" award from the Cadillac Chamber of Commerce.



Our Providers
Dr. Megan Santangelo
graduated from Case Western University School of Medicine. She completed her Pediatric Residency at Cincinnati Childrens Hospital Medical Center in Cincinnati Ohio. She is board Certified in Pediatrics and fellow American Academy of Pediatrics and the Michigan State Medical Society. She, her husband and three children are enjoying life in Cadillac and taking advantage of all the activities that Northern Michigan has to offer.
Mackinaw Trail Pediatrics
Dr. Joseph Santangelo
graduated from Case Western University School of Medicine. He completed his Residency at Children's Hospital Medical Center in Cincinnati,Ohio. He is board Certified in Pediatrics and is a Fellow of the American Academy of Pediatrics. He is also a member of the Michigan State Medical Society.
Betsy Krchmar PA-C
graduated from Central Michigan University Physician Assistant Program. She has a Bachelor Degree in Science, majoring in health fitness in preventative and rehabilitative programs. She is NCCPA board certified and is a member of the American and Michigan Academy of Physician Assistants. She is a native of Marion and graduated from Marion High School.