Animal Medical Center
Phone: (319) 366-7567
Fax: (319) 366-7179

4419 Mount Vernon Rd SE, Cedar Rapids, IA 52403

Monday - Friday: 7:00AM - 5:30PM


Our Team


Dr. Erin L. Garman, DVM
Iowa State University

doctor_garmanDr. Erin Garman received her DVM in 1992 from Iowa State University and came to Linn Animal Hospital in 1998 after practicing in Des Moines for four years and in Madison for two years. She became a partner in Linn Animal Hospital in 1999 when Dr. Vic Klopfenstein retired.

Dr. Garman has a special interest in ultrasound and has been performing cardiac and abdominal ultrasound since 2000. She also enjoys internal medicine and soft tissue surgery, along with her ferret patients and their unique challenges. She is a member of the AVMA, IVMA and LCVMA, in addition to being a member of the Ethics Committee for the IVMA.

Dr. Garman is a 1985 graduate from Cedar Rapids Kennedy high school. Her family life is spent on an acreage with her husband, Bob, and their three children. Jazz, a standard poodle, and their cat, Sun, round out the family. She enjoys the beach and water sports, and entertaining with her family and friends.

Dr. Greg K. Winterowd, DVM
Iowa State University

doctor_winterowdDr. Greg Winterowd is a native of Linn County and a second generation veterinarian. After graduating from Springville High School, Dr. Winterowd received his BS in biology and chemistry from Cornell College in Mount Vernon. He received his DVM from Iowa State University in 1994. Dr. Winterowd worked with his father, Darrell, in Cedar Rapids from 1994-2000, and then came to Linn Animal Hospital via their sister clinic, Park Towne Animal Hospital, where he is now a partner. Dr. Winterowd is a member of the AVMA, IVMA, and past president of the LCVMA.

Dr. Winterowd has always been focused on small animal medicine and enjoys orthopedic and soft tissue surgery. Recently, he has been studying the benefits of herbal remedies as an adjunct treatment to traditional medicine. Dr. Winterowd sits on the Linn County Animal Control Task Force and works with the Cedar Rapids Animal Control and their neuter program.

Dr. Winterowd, his wife, and two daughters live on a small hobby farm with a dozen black angus cattle, a handful of barn cats, and an old llama named Brownie. Dr. Winterowd is rarely seen at work without one of his dogs close by. He enjoys racquetball, construction and driving his old dump truck in his spare time.

Dr. Jill L. Johnson DVM
Texas A&M

doctor_snyderDr. Jill Johnson received her DVM in 1994 from Texas A&M University and joined a large animal practice in Houston. She moved back to Iowa in 2002 and joined Linn Animal Hospital and their sister clinic, Park Towne Animal Hospital, in 2004.

Dr. Johnson's special interests are internal medicine and soft tissue surgery. A certified veterinary chiropractitioner, she uses spinal adjustment as a complimentary modality in the treatment of neck and back problems. She is a member of the AVMA, IVMA and LCVMA.

Dr. Johnson graduated from Cedar Rapids Prairie High School in 1980. She and her husband, Michael, live in Cedar Rapids and share their home with their dogs, Astro and Madison.. She enjoys outdoor activities, especially running, biking and fishing.

Dr. Mark A. Klopfenstein, DVM
Iowa State University

doctor_klopfensteinAfter receiving his DVM in 1986, Dr. Mark Klopfenstein came to Linn Animal Hospital to practice with his dad, Dr. Vic Klopfenstein, and Dr. Larry Wogahn.

Dr. Klopfenstein (or Dr. Mark, as he's more commonly referred to) has interests in preventative medicine, internal medicine and orthopedic surgery. He has been an active member of the AVMA, IVMA, EIVMA, and LCVMA. He has served many roles for these veterinary associations and is currently on the Legislative Committee of the IVMA.

Dr. Klopfenstein's wife, Cheryl, is an active fitness instructor and director of their three college children. He enjoys spending time with his family, fishing, hunting, golfing and traveling. The family has a yellow lab, Riley.

Dr. Klopfenstein is a Marion graduate. He has been very active in the community by serving on many boards at Linn-Mar Community Schools, Marion Chamber of Commerce, YMCA, Marion Friends of the Library, and the First United Methodist Church. He believes in giving back to the community that has given so much to his family and business.

Dr. Jaclyn R. Allen, DVM
Iowa State University

jaclynbioDr. Jaclyn Klopfenstein Allen received her DVM in 2011 from Iowa State University and came to Linn Animal Hospital after practicing in Lake Ozark, Missouri for one year and then in Pekin, Illinois for two years.

Dr. Allen is a third generation veterinarian, following in her grandfather (Vic Klopfenstein) and father, Mark Klopfenstein’s footsteps. Having grown up around veterinary medicine, she knew at the age of three it was her destiny. Her interests in veterinary medicine include soft tissue surgery, ultrasonography, internal medicine, preventative care, and nutrition. She is a member of the AVMA, IVMA, and LCVMA. She served a term on the Board of Health in Tazewell County while living in Illinois.

Dr. Allen is a 2004 graduate from Marion high School. She married her high school sweetheart, Jeremy, and they are the proud parents of Ace, born in March of 2015. Two “fur kids” round out the household, Remy, a Golden Retriever, and Josie, a tabby cat. She enjoys skiing, boating, scrapbooking, and spending time outdoors. Jaclyn and Jeremy are excited to settle down in Linn County to raise their growing family!

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