Our Staff

• Corey Cherrstrom , DVM

  
  

  I began to pursue a career in Veterinary Medicine during high school with experience working for a friend's father in his veterinary hospital.  After undergraduate studies at Colorado State University and a year of graduate school in physiology at the University of California, Davis, I started UCD in the fall of 1968.  During veterinary school I gained experience at a research facility caring for a colony of cats and on the small animal treatment crew. Both of these jobs gave me valuable additional experience with small animals.  I received my Doctor of Veterinary Medicine in 1972.  I spent my first year after graduation at the University of Minnesota School of Veterinary Medicine in a small animal medicine internship.  The next four years were spent in two small animal practices in northern California. I joined friends and classmates Drs. Rick Frey and Greg Fellers in March of 1977 in Loomis.  I enjoy all aspects of small animal medicine and surgery with a special interest in canine reproductive cases. My wife, Jan, and I have been married since 1969 and have three sons: Matt, Dan, and Jay.  We have lived in Loomis since 1977 and currently have a Border Collie, cat and sheep to mow the pasture.  When away from veterinary medicine, I enjoy working in my orchard and fly fishing.

  View

  ---

• Rick Frey , DVM

  
  

  Upon completing high school, I attended the University of Pacific in Stockton, California.  During summers I volunteered with some mixed animal veterinarians in the Woodland, CA area.  There I realized my desire to enter this field and attended the University of California, Davis, and earned a Doctor of Veterinary Medicine degree in 1968. My first job out of veterinary school was with a private practice in Thousand Oaks.  A couple of years later, I moved to Loomis and began a mixed animal practice from my home and car.  In 1975, a small house on Taylor Road in Loomis became available so I transitioned into that facility. In 1976 Dr. Greg Fellers (Large Animal Services) joined me and Dr. Corey Cherrstrom, my partner in Small Animal, joined us in 1977.  It was a thrill in 1978 to move into the original hospital at our current location.  As a veterinary practitioner, I have had a special interest in llamas.  I also enjoy the entrepreneurial aspect of veterinary medicine.  Jani, my wife since 1969, and I have three grown sons: Doug, Greg, and John, and two grandsons. Away from the practice, I enjoy high country hiking with our llamas, woodworking, collecting and restoring antiques, scuba diving, gardening and spending time with family and friends.  Most recently, we are enjoying yet another fruit of parenthood - grandparenthood.

  View

  ---

• Marcia Smith , DVM, DACVIM

  
  

  Dr. Smith graduated from veterinary school at UC Davis in 1983, and went on to complete an internship and residency in small animal internal medicine.  Following the training program and examinations, she became a Diplomate of the American College of Veterinary Internal Medicine in 1987. The majority of her patients are referrals from other veterinarians for special procedures, cancer therapy, or diagnosis of unusual or challenging to treat medical problems.  She does still see general practice patients for annual examinations or minor problems on a client request basis.  She describes her greatest satisfaction at work as helping patients and their owners with cancer treatment, and in diagnosing patients with very complicated medical problems. Dr. Smith and her husband, Tom Johnson, have lived in Loomis since 1992.  They live with 3 horses, 2 dogs and a cat.  She has been an avid endurance rider since 1989 and can often be found riding horses when not at work. Among her significant accomplishments in the sport have been three Tevis Cup 100 mile race wins, the individual gold medal and Best Condition awards at the 1995 North American Endurance Championship, and multiple other wins and Best Condition awards.

  View

  ---

• Dennis Spann , DVM, DACVIM

  
  

  Dr. Spann was born and raised in Salinas, California before attending UC San Diego for a Bachelor's degree in Biochemistry and Cell Biology.  He graduated from the UC Davis School of Veterinary Medicine in 1996 then went on to North Carolina State University where he completed an internship program in 1997. 
   
  He completed an Internal Medicine Residency program at UC Davis in 1999 before joining Loomis Basin Veterinary Clinic.  Dr. Spann became a Diplomate of the American College of Veterinary Internal Medicine in 2000.
   
  His areas of special interest include infectious and immune mediated diseases, oncology, endocrinology, cardiopulmonary and endoscopy.
   
  He and his wife Cindy have three children who occupy most of their free time.  They enjoy gardening and other outdoor activities with their children.

  ---

• Brad Green, DVM

  
  

  No Biographical Data Is Currently Available.

  ---

• Bonnie Coyne , DVM, DACVS

  
  

  Dr. Coyne completed veterinary school at Colorado State University in 1982 then joined Loomis Basin Veterinary Clinic as an intern.  She was a stafff veterinarian here between 1983 and 1987 before attending Kansas State University to complete a Surgical Residency program.  At KSU, she also was a Lecturer of Veterinary Surgery from 1987-1988. Dr. Coyne returned to Loomis Basin as a staff surgeon in 1992 and continues in this role today.  In 1995, she became a Diplomate of the American College of Veterinary Surgeons. Dr. Coyne has a young son who is involved with Cub Scouts.  She enjoys volunteering her time in support of his scouting interests and activities.  She has a Jack Russell Terrier, two cats and llamas.  Dr. Coyne enjoys growoing trees and is also an art docent for the Placer County Arts Commission.

  View

  ---

• Steve Harnagel , DVM, DACVR

  
  

  Dr. Harnagel was born and raised in southern California before attending UC Davis where he received a Bachelor's degree in Zoology in 1976 and a Doctor of Veterinary Medicine in 1980. He returned to Davis between 1984 and 1987 to complete a Radiology Residency.  Dr. Harnagel became a Diplomate of the American College of Veterinary Radiology in 1987 and joined Loomis Basin Veterinary Clinic in 1988. He enjoys a number of activities with his family, including whitewater rafting, kayaking, scuba diving, fly fishing, photography and guitar.

  View

  ---

• Eric Herrgesell , DVM, DACVR

  
  

  Dr. Eric Herrgesell is a second-generation veterinarian who completed his Doctor of Veterinary Medicine and radiology training at UC Davis.  He has served for 8 years on the faculty at UC Davis as a Lecturer and Clinical Radiologist. 
   
  He is well-known on the national Continuing Education circuit for Radiology and Ultrasound Training and in 2005 he was awarded the Norden Distinguished Teaching Award at UC Davis.
   
  Dr. Herrgesell began working at Loomis Basin Veterinary Clinic in early 2006. 

  ---

• Craig Long , DVM, DACVR

  
  

  Dr. Long is a second generation veterinarian who currently resides with his wife and daughter in Davis.  He attended California State Polytechnic University, San Luis Obispo, where he concentrated in animal sciences and biology.

  He completed his undergraduate studies at the University of California, Davis where he earned a Bachelor of Science in Veterinary Sciences.  Craig received his Doctor of Veterinary Medicine degree from UC Davis in 1994.

  Following veterinary school, Dr. Long completed a mixed animal internship in medicine and surgery at the Country Veterinary Clinic in Live Oak, California.  He then completed a 4-year residency program in Radiology at UC Davis, leading to Board certification and is a Diplomate of the American College of Veterinary Radiology.

  Dr. Long began working at Loomis Basin Veterinary Clinic in 2000.
  

  ---

• Leslie Cooper , DVM, DACVB

  
  

  Dr. Leslie Cooper was born in Turlock and raised on a dairy in Hickman, California.  She received her Bachelor's degree in Animal Science from University of California, Davis in 1976.  She continued her education at UC Davis where she later received her Doctor of Veterinary Medicine in 1980. 
   
  Dr. Cooper served on the faculty of the Behavior Science at the Veterinary Medicine Teaching Hospital at UC Davis from 1980-2002.  Dr. Cooper passed her specialty board exams for the American College of Veterinary Behaviorists in 1995.  She passed her exams the first year they were given and is one of the few behaviorists in the country. 
   
  Leslie joined Loomis Basin Veterinary Clinic in 2004 and has special interests in veterinary behavior and the human-animal bond.  She and her husband Phil have two sons, Ben and Nick.  Their family also includes Tirza, a 15 year old Siberian Husky and Rocky, a 12 year old Siamese mix.  In her time away from veterinary medicine, Leslie enjoys quilting, singing in two choirs and playing slow-pitch softball. 

  ---

• Tim Calvert , DVM

  
  

  No Biographical Data Is Currently Available.

  ---

• Claire Hardy , DVM

  
  

  Dr. Claire Hardy was born in Oakland and raised in the Bay Area.  She attended University of California at Davis graduating in 1986 with Highest Honors with a Bachelor of Science in Biological Sciences and a minor in English.  She graduated from UC Davis' School of Veterinary Medicine in 1990.    Claire joined Loomis Basin Veterinary Clinic in March 2005 and has a special interest in family practice, "pocket pets" medicine, feline medicin and surgery.    In her time away from the clinic, Claire enjoys spending time with her husband David and their two children, Ian and Michaela.  She also enjoys reading, any kind of water sport, skiing and mountain biking.

  View

  ---

• Lisa Hess , DVM

  
  

  Dr. Lisa Hess was raised right here in Sacramento and received her Bachelor's degree in Biology from California State University, Sacramento in 1997.  She later studied at Kansas State University where she graduated with a Doctor of Veterinary Medicine in 2003.    Dr. Hess joined Loomis Basin in 2003 to first complete an internship program then became a staff veterinarian.  In February 2006, Lisa became the "Vet Expert" for the KXTV News 10 weekday morning show "Sac & Co."  Look out for Lisa's segments which air on the first Monday of each month between 9:00 - 10:00 am.   Lisa lives in Rocklin and enjoys running, cycling and hiking.

  View

  ---

• Jenna Lee-Ahrens , DVM

  
  

  Dr. Jenna Lee was born in Chicago, IL and raised in Palo Alto, CA.  She attended UC Davis and graduated in 1995 with a Bachelor's in Biological Science.  She completed her education at the UC Davis School of Veterinary Medicine earning her DVM in 2000.
   
  Jenna joined the staff at Loomis Basin Veterinary Clinic in March 2006 and has special interest in preventive medicine and thorough patient care.
   
  When not practicing medicine Jenna enjoys hiking and camping with her fiance Tim and their two dogs, Troika and George as well as relaxing with their two cats, Morrison and Pancake. 

  ---

• Elizabeth Montgomery , DVM

  
  

  Dr. Elizabeth Montgomery was born and raised in Arizona.  She received her undergraduate degree in Psychology from the University of Arizona and completed a Masters of Public Health at UC Los Angeles.  Elizabeth graduated from the School of Veterinary Medicine at UC Davis in 2002.
   
  Elizabeth joined the staff at Loomis Basin Veterinary Clinic in 2004. 

  ---

• Olivia Petrunich , DVM

  
  

  Dr. Olivia Petrunich was born in Hawaii and raised in Reno, Nevada and Novato, California.  She received her Bachelor's degree in Animal Science from UC Davis in 2000 where she remained to complete her Doctor of Veterinary Medicine in 2006.  Dr. Petrunich joined Looms Basin Veterinary Clinic in 2006. She has special interests in feline, avian and exotics, especially pocket pets.  When away from practicing medicine, Olivia and her husband are busy looking after their family of 18 pets which include:  5 cats, 1 dog, 4 rats, 1 mouse, 2 guinea pigs, 1 turtle, 1 gecko and 3 snakes!

  View

  ---

• Mike Reget , DVM

  
  

  Dr. Michael Reget was born in Los Angeles and raised in Bishop, California.  He attended California State University, Fresno where he earned a Bachelor's degree in Biology in 1996.  Mike continued his graduate studies at UC Davis receiving his Doctor of Veterinary Medicine in 2001. Mike joined Loomis Basin Veterinary Clinic in 2001 to complete an internship program and then became a staff veterinarian.  He has special interests in surgery and reproduction.

  View

  ---

• Alex Rensing , DVM

  
  

  Dr. Alex Rensing was born and raised in southern California before moving to northern California where she attended UC Davis.  In 1995, earning highest honors, she graduated with a degree in Zoology.  She completed her doctoral studies in mixed animal practice at UC Davis in 2000 where she was also an Arques Scholar. Dr. Rensing joined LBVC in 2000 to first complete an internship program then became a staff veterinarian.  She enjoys the variety of pets she sees, including rabbits, rats, guinea pigs, ferrets, iguanas and various avian species.  She has a special interest in reptiles, skin disease, ophthalmology and preventive medicine. Alex and her husband John live with their young sonJoshua in Davis and enjoy rock climbing, whitewater rafting, surfing and hiking.  Their family also includes five tortoises, two snakes and two lizards.

  View

  ---

• Mira Sanchez

  
  

  No Biographical Data Is Currently Available.

  ---

• Michelle Sievers , DVM

  
  

  Dr. Michelle Sievers was born in Harvey, Illinois and was raised in Miami, Florida.  She completed her undergraduate training at UC Berkeley and graduated from the School of Veterinary Medicine at the University of California, Davis in 1997.

  Following veterinary school, she completed a 1-year internship training program in medicine and surgery in Ventura, California.  Michelle joined the staff at Loomis Basin Veterinary Clinic in August 1998 and has special interests in feline care.

  When away from her professional role Michelle enjoys backpacking, bicycling, skiing and baseball, as well as almost any activity that takes her outdoors.

  ---

• Alexis Smith , DVM

  
  

  Dr. Alexis Smith was born and raised in Los Angeles.  She completed her undergraduate studies at UC Santa Barbara in 1997.  Dr. Smith graduated from the School of Veterinary Medicine at UC Davis in 2002.
   
  Alexis joined the staff at Loomis Basin Veterinary Clinic in 2004.

  ---

• Casey Stepnik , DVM

  
  

  Dr. Casey Stepnik was born in Illinois and raised in Wisconsin.  She attended University of Wisconisn at Madison for her undergraduate studies and later graduated from the University of Wisconsin's School of Veterinary Medicine. 
   
  Casey joined Loomis Basin Veterinary Clinic in 2005.  She owns two cats, Rocky and Fraggle, and a dog, Irma. 

  ---

• Dr. Paula Thomas , DVM

  
  No biographical data available at this time.

  ---

• Peter Vellutini

  
  

  No Biographical Data Is Currently Available.

  ---

• Dr. Tarra Vickery-Williams , DVM

  
  No biographical data available at this time.

  ---

• Dr. Niki Wolley , DVM

  
  No biographical data is available at this time.

  ---

• Tom Zappas , DVM

  
  

  Dr. Tom Zappas was born in Concord, California and raised in the Bay Area.  He completed his undergraduate studies in Pre-veterinary medicine in 1982 from the University of Nevada at Reno.  Immediately following graduation he enrolled at Ohio State University, graduating with a Doctor of Veterinary Medicine Degree in 1986. Following veterinary school, Dr. Zappas began his private practice career at a 24-hour referral and general veterinary practice in southern California.  Following his relocation to our area in 1991, Tom has been a very valuable member of our veterinary staff at the clinic. Tom enjoys running, kayaking and music when not caring for our clients and their pets.  He is married to Dr. Nancy King, who is an anesthesiologist in private practice in our area.  They have a daughter Nora.

  View

  ---

• Wendy MacKinnon

  
  No biographical data at this time.

  ---

• Jon Cunnington , MBA, CVPM

  
  

  Jon Cunnington was born and raised in northern California.  He attended California State University, Sacramento where he earned a Bachelor's degree in Business Administration. Jon later attended California State University, Chico and received a Master's degree in Business.  He taught various management, marketing and communications at CSU Chico for two years before entering the veterinary field.  Jon worked for six years as a practice manager at a Chico veterinary hospital before joining LBVC in 2000 as hospital administrator. In 2005 Jon completed the rigorous educational, experiential and testing requirements and earned the designation as a Certified Veterinary Practice Manager through the Veterinary Hospital Managers Association.  Jon and his wife, Becky, and their daughter, Emily  live in the Loomis area.  He enjoys gardening, golfing, fishing and puttering in his workshop.  Jon and his family are also active in their local church.

  View

  ---

• Janet Craft , RVT

  
  

  Janet Craft is the Technical Staff Manager.  She became a Registered Veterinary Technician in 1990 and joined Loomis Basin in June 1993.

  View

  ---

• Linda Klujsza

  
  

  Linda is the Customer Service Representative Manager. 

  ---

• Kris Lutey , RVT

  
  

  Kristyn Lutey is responsible for our Purchasing and Inventory.  Born and raised in Detroit, Michigan, Kris later graduated from Yuba College in 1978 and attended California State University, Chico.    Kris joined the staff at Loomis Basin Veterinary Clinic in 1984 as a Registered Veterinary Technician.  Kris, who lives with her two children, two dogs and two cats in Cool, enjoys kayaking, hiking, camping, yoga, tai chi, reading and gardening.

  View

  ---

• Patty Mayhew

  
  

  Patty Mayhew is the Operations Manager for Loomis Basin Veterinary Clinic.

  View

  ---

• Jane Rusmintratip

  
  

  Jane is the Human Resources Manager.  She joined Loomis Basin Veterinary Clinic in 2006.

  ---

• Carol Tauscher

  
  Carol Tauscher is the Accounting Manager.  She joined Loomis Basin Veterinary Clinic in September 1995. 

  ---