All Creatures Pet Hospital

902 West Kearney Street
Springfield, MO 65803


All Creatures Pet Hospital Springfield - Our Doctors


Dr. Blackburn is proud to provide veterinary care to the Springfield community!Dr. Lance Blackburn


Dr. Blackburn is a native of Springfield, MO, attended Hillcrest High School and has lived in Springfield all but 7 years of his life. He worked for 3 years in Henderson, NV at Black Mountain Animal Hospital. He was happy to return to Springfield in 1992 joining this practice formerly called Bennett Pet Hospital. Upon purchasing the practice in 1996, Dr. Blackburn changed the practice name to All Creatures Pet Hospital.


Dr. Blackburn enjoys cycling, hiking, SCUBA diving and outdoor activities in general. He has four children including a daughter, Marissa, and three sons, Brandon, Chase and Jared.



Special Activities:



Pain Control

Geriatric Medicine – Diseases of the elderly pet

Education & Advanced Training:

Animal Dental Training Center – Baltimore, MD – Dentistry & Oral Surgery

University of Missouri – Columbia, MO – Doctor of Veterinary Medicine

Missouri State University – Springfield, MO

Community Activities:

Boy Scouts of America

DECA - Distributive Education Clubs of America

MercE Pantry

Hillcrest High School Football

Pet facts:

Wall-E, a 12 year-old Weimaraner rescue, loves playing ball and enjoys water retrieving.

 Dr. Janet Rettenmaier

Dr. Rettenmaier was born and raised in Northeast Iowa, then moved to Columbia, Missouri , where she lived for 27 years. Seeking out warmer weather, Dr.Rettenmaier moved south to the Springfield area 3 years ago and began practicing at All Creatures Pet Hospital in October of 2016.


Dr. Rettenmaier's hobbies include assorted equine activities, including: Competitive trail riding, Barrel racing and Eventing. She also enjoys SCUBA diving and traveling. Dr. Rettenmaier's favorite place to travel is the Caribbean, where she revels in lying on the beach. She has two children: A son, Keith, who is a small animal researcher and a daughter, Leigh, who is in medical school at the University of Iowa.


Special Activities:


Sports Medicine and Orthopedics

Small Animal Surgery

Education and Advanced Training:

Small Animal Surgery Residency-University of Columbia, MO.

University of Columbia, MO.-Doctor of Veterinary Medicine

University of Northern, Iowa

Certification of Veterinary Acupuncture-Member of the International Veterinary Acupuncture Society.

Pet Facts:

Dr. Rettenmaier has 4 horses, 5 dogs and 1 cat