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Our Staff
Doctors
Roger Klingenberg , DVM Dr. Klingenberg was born in Loveland, but raised in Greeley, Colorado, where he attended Greeley Central High School prior to being admitted to Colorado State University. High school was an especially memorable time for him because he met his future wife, Elaine Foe, who currently is a practicing ophthalmologist in Greeley. They have been married since 1978 and have one son, Brad, and a daughter, Kate. Brad is currently working on his PhD in Applied Mathematics at Stanford, while Kate is pursuing undergraduate studies at CU Boulder.
A merging of animal fascination with a life-long interest in science culminated in Dr. Klingenberg’s graduation from the CSU veterinary program in 1978. He learned the trade in veterinary practices in St. Louis and Houston, while his wife finished medical school and then completed her internship and residency in ophthalmology. They moved back to Greeley in 1985 after an absence of 12 years, and Dr. Foe opened her own eye practice and Dr. Klingenberg founded Sheep Draw Veterinary Hospital. Dr. Klingenberg was the only veterinarian at Sheep Draw for 7 years, but the steady growth of the practice expanded the staff to the current four veterinarians and supporting staff.
Being a pet owner helps Dr. Klingenberg keep in touch with what it is like to be on the other side of the exam table. He has cared for up to four dogs at one time and currently has two. Over the years he has bred and raised litters of Welsh Corgis, Bull Terriers, and Jack Russell Terriers. Unfortunately, his wife and children are very allergic to cats, so he has to enjoy seeing his patient’s cats as well as the hospital cat 8-Ball. In line with his interests in exotic animals, he always maintains a number of snakes, lizards, and turtle/tortoises, as well as the occasional insect. Breeding rare of seldom bred (in captivity) reptiles is a hobby he has never outgrown.
Dr. Klingenberg is a well-known author, speaker, and a researcher of exotic pets, especially on the subject of reptile medicine and surgery. He has authored dozens of papers, articles, text book chapters, and books. His special interests include exotic pet medicine/surgery, orthopedic surgery (especially knees) in dogs and cats, applications of laser surgery, and all preventative health care issues that pertain to his client’s pets.
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Dr. Carla Gabel , DVM
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Dr. Carla Gabel grew up on a small ranch in Southeastern Colorado. She knew by junior high that she was going to be a veterinarian; living in the country afforded her many learning opportunities in that field.
She attended Colorado State University majoring in Animal Science with an emphasis in Beef Production. She met her husband, Carl Gabel, during undergraduate school. They were wed during Dr. Gabel’s sophomore year of vet school, and have been married 14 years.
Dr. Gabel then went on to graduate from Colorado State University College of Veterinary and Biomedical Sciences in May 1995. Her first job took her to a mixed animal practice in Ft. Scott, Kansas. She found that job to be a wonderful opportunity and gained a wide range of exposure that strengthened her experience and confidence. However, Carla and Carl missed their home state of Colorado so moved back in 1998.
Her second job was at a small animal clinic in a cute little building in Lyons, Colorado. She really enjoyed the relationships she built with the people in that community, but a change in jobs necessitated a move. Dr. Gabel worked at Lyons Animal Clinic until April 2000.
Carl accepted a job in Greeley so their family moved at that time. Dr. Gabel started at Sheep Draw Veterinary Hospital in April 2000. Carl continues as a Loan Officer for a community bank in Greeley. They have three children: a son, Cody, 11 years old, a daughter, Terryn 9 years old, and a daughter, Sarah, three years old. Additionally they purchased 40 acres north of Kersey and built a house on it. They currently farm the property and raise a multitude of critters. At present time, there are 8 cows, 2 horses, 2 dogs, 2 cats, 1 turtle, 1 guinea pig, and a chicken with 1 good eye.
Dr. Gabel enjoys being a part of the team at Sheep Draw Veterinary Hospital. The professionalism and commradery that is part of the environment make it a wonderful place to work. Dr. Gabel enjoys both the medical and surgical aspects of small animal practice with a special interest in dentistry. Her favorite part of practice is getting to be a part of a family’s relationship from that first puppy or kitten exam to the geriatric exams. Being involved, and a part of all the life stages, and knowing that you are helping a family member is really rewarding. There is nothing like puppy breath! |
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Dr. Lyanne Santistevan , DVM Lyanne Santistevan grew up north of Holyoke, Colorado on a farm. From barn cats, to guide dogs, horses to cattle, and 4-H hogs, her early years revolved around animals. Originally, she planned to pursue a degree in nursing so that she could make a difference in people’s lives. After volunteering at a local veterinary clinic, however, she realized that she could also help people through veterinary medicine by caring for their animals – a very important part of their lives.
While attending the veterinary school at Colorado State University, Dr. Santistevan was able to pursue many of her passions, including a trip to Honduras for two weeks. While there, her group provided spay and neuter services, rabies vaccines, and classes about livestock production for local farmers. After graduating veterinary school in 2006, Dr. Santistevan practiced at a large, mixed-animal practice in Roseburg, Oregon. Now, she and her husband, Brian, are happy to be back home in Colorado. They love riding their horses, Wheaty and Cisco, traveling, and spending time with family. Darby, a six-year-old Manx cat, is the center of attention at home.
Dr. Santistevan is especially interested in surgery, dentistry, and pain management. Her daily goal is to provide the best possible care to patients while treating each one with kindness and dignity. | 
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Dr. Stephanie Buchholtz , DVM
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A Colorado native, Dr. Buchholtz grew up in Littleton. Given the fact that she couldn’t keep livestock in suburbia, as soon as school was out she headed to her grandparent’s ranch on the western slope to raise 4-H animals every summer. Becoming a veterinarian was always her plan, so applying to Colorado State was the best way to accomplish that goal.
She married her high school sweetheart, Brett, between her second and third years of vet school. After graduation, they settled in Windsor in 1993. She has practiced in the Greeley area since then, and has been a fixture at Sheep Draw since 1996. Her practice special interests include feline medicine and thyroid surgery. She especially enjoys the long-term relationships she has developed over the years with clients and their pets.
While, like most veterinarians, her past pets have been varied, her current animals include four cats and an amazon parrot. Interests beyond veterinary medicine include fly fishing and volunteering with the Windsor-Severance Fire Department as their photographer where her husband has been a volunteer firefighter since 2004. |
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Office Manager
Ethan Miles
| I was born and raised in Greeley. I attended Greeley West High School and the University of Northern Colorado. I graduated with a Bachelor of Science in Biology with an emphasis in Zoology in 2001. I worked in veterinary clinics in Denver during the summer breaks in college, and joined the Sheep Draw team in June 2001 as a veterinary technician. I have recently been promoted to operations manager in addition to my technical duties. I live here in Greeley with my wonderful wife, Maggie, my beautiful daughter, Emmarie, and my two cats, Harry and Gertie. In my spare time I love to play ice hockey and spend time with my daughter. |
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Reception
Stephanie Croft
| I moved to Greeley in 2004 to attend UNC with my wonderful husband Garth. I graduated in 2006 with a Bachelor of Arts Degree in Psychology, but discovered that working with animals was more rewarding and joined the Sheep Draw team in 2008. Garth and I have four wacky cat kiddos who share our home; 3yr old Chester, 1 ½ yr old brother and sister Spike and Drusilla, and 1 yr old Angel. |
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Kelley Holmes |
I was raised in Aurora, CO with a passion for critters! I have two beautiful parents and a sister who loves to surprise me. Both she and her husband live around the world as he is a Captain in the Air Force and flies the A-10.
I graduated from UNC with a Bachelor of Science in Biology with an emphasis in Organismal Biology and a Bachelor of Arts with a minor in Biology and an emphasis in Ethnic and Gender Studies.
I live with my loving and supportive boyfriend and together we are the proud parents of our retired greyhound, Cyrus. Cyrus is a great big brother to our bunny, Ru and our two leopard geckos: Puka and Zulu. He keeps asking us for a baby sister, so adopting a Doberman is in our future. In my spare time, I enjoy being with my family, playing with my animals and participating in walks and races for a cure. | 
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Technicians
Tabitha Schraeder , CVT
| I started working at Sheep Draw in May of 2000. I started as a kennel technician while I attended college. In 2003 I graduated from the Front Range Community College Veterinary Technician Program. I passed the national board exams shortly after and received my Veterinary Technician Certification. I have been a technician at Sheep Draw since graduation and have doubled as the office manager for the last year. I am the proud owner of 3 english Springer Spaniels: Ella, Josie, and the newest Sirius. I also share my home with 2 cats: Edison and Oreo, a bearded dragon, and a leopard gecko. In my spare time I enjoy reading, sewing and training my dogs in obedience and conformation. |
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Arrin Bizelli | I grew up on a farm in Elizabeth, Colorado. I attended CSU and received a Bachelor of Science degree in Zoology and Biology. While at CSU I volunteered much of my time at the CSU Veterinary Teaching Hospital. I became part of the Sheep Draw Veterinary Hospital team in August 2005. I am currently a technician and have high hopes of continuing my education and becoming a veterinarian. I have a 9 year old son, Tyler, a 7 year old spoiled cat, Oliver and a very high energy black lab, Chato (Shadow). | 
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Ann Millikan , CVT |
I moved to Greeley with my husband in 2005. I decided to pursue my love of animals and enrolled at Front Range Community College in the Veterinary Technology program. After obtaining my degree, I was fortunate enough to be join the team at Sheep Draw Veterinary Hospital. I love the work and having the privilege of caring for our clients pets.
At my home I have an American Eskimo named Magnolia who rules the house. She also bosses our adopted cat Leno around, and squeals on him when he gets up on the counter. Rewarding work and having animals by my side is a dream come true. | 
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Erin Hirsh , CVT | I am a recent graduate of Front Range Community College with a degree in Veterinary Technology. I passed my State Board Certification Exam in June 2007 and am now a Certified Veterinary Technician. I have been working at Sheep Draw Veterinary Hospital now since May 2006. I currently reside in Loveland with my English Bulldog named Sophie. In my spare time I train in Martial Arts and have recently begun competing in statewide competitions. | 
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Heather Berry , CVT
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I was raised in Yuma, Colorado. I graduated from Colby Community College in Colby, Kansas with a degree as a Veterinary Technician. I moved to Greeley in May 2009 and joined the Sheep Draw team in June. I grew up showing farm animals at the fair and raised market lambs throughout high school. I currently have 2 male boxers; Hurley and Morris. I also have a three legged cat named Trio. |
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Assistants
Caitlin Stoddard | I have been living in Greeley now for about 14 years. I grew up in San Diego, California. I live with two furry critters, a black and white cat named Sleepy and a Border Collie named Sugar Bear. I am the second oldest child in a family of seven. I have been a part of the Sheep Draw Veterinary Hospital staff now since November 2007 as a kennel technician. | 
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Tracey Clay
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I am currently attending Aims Community College where I plan to graduate with my Associates of Liberal Arts in the spring of 2010. Upon completion, I plan on attending UNC to pursue my Bachelors Degree in Anthropology with an emphasis in archeology.
When I am not studying or working I enjoy spending time with my husband Casey and our cat Oliver Twist. |
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Clinic Security
8 - Ball | When I was young I was in a bad accident and had surgery at CSU. I lost my tail and need a lot of special care, so I found a new home at Sheep Draw. I was originally found behind a pool hall, hence my name, and then moved on to graduate from the Puma School of Feline Clinic Security. I love living at the clinic and try to provide moral support to all distressed animals that enter (especially other cats). My hobbies include sleeping on Dr. B’s chair, insisting that people pay attention to me, sleeping in the staff lounge, donating blood to kitties in need, sleeping in my bed, mousing when allowed, and sleeping in my condo. | 
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