Our Doctors

DR. RYAN DEPAUL

DR. RYAN DEPAUL

DVM & PRACTICE OWNER

Thompson Peak Veterinary Clinic is owned by Dr. Ryan DePaul. He was raised in Surprise Valley, CA on his parents' ranch. He graduated from Surprise Valley High School in 1997 and attended the University...

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DR. RYAN DEPAUL

DVM & PRACTICE OWNER

Thompson Peak Veterinary Clinic is owned by Dr. Ryan DePaul. He was raised in Surprise Valley, CA on his parents’ ranch. He graduated from Surprise Valley High School in 1997 and attended the University of Nevada, Reno. While going to school he spent 4 years working for the UNR Experiment Main Station Ranch and worked on numerous research programs including Foothill Abortion Trials. He graduated the University of Nevada, Reno in 2001.

Dr. DePaul received his DVM degree from Oregon State University in 2005. Dr. DePaul moved to Alturas, CA and started working for Modoc Veterinary Center in the summer of 2005 and he became a partner in 2007. In 2015, Dr DePaul purchased Thompson Peak Veterinary Clinic along with a fellow veterinarian and then became sole owner in 2019. He has enjoyed expanding his business into the Susanville area and loves coming down to spend time with our clients whenever possible. Dr. DePaul specializes in Equine Dentistry and is a Certified Equine and Small Animal Chiropractor.

Dr. DePaul loves being able to spend time with his family and wife Kristen. Dr. DePaul has five kids, Julianna, Caelli, Abigail, Joshua, and Leigha. He enjoys spending time with his family, sports, hunting, fishing, camping and helping out with his family ranch.

Dr. DePaul enjoys his time practicing veterinary medicine in both Modoc and Lassen counties and he is very thankful to be able to serve them.

DR. WAYNE COCKRELL

DR. WAYNE COCKRELL

DVM

Dr Wayne Cockrell was born and raised in Surprise Valley on his family’s cattle ranch. He graduated from Surprise Valley High School in 2006, and began attending California State University, Chico, where...

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DR. WAYNE COCKRELL

DVM

Dr Wayne Cockrell was born and raised in Surprise Valley on his family’s cattle ranch. He graduated from Surprise Valley High School in 2006, and began attending California State University, Chico, where he received his B.S. in both Animal Science as well as Agriculture Business. Dr. Cockrell was heavily involved in his education and programs at the university, including working at the university’s Meat Lab and Beef Unit.

Upon graduation from CSU Chico, Dr. Cockrell attended Ross University School of Veterinary Medicine and graduated with highest honors, receiving his Doctorate of Veterinary Medicine in 2017. He then did clinical residency at UC Davis.

After working at our Modoc Veterinary Center for 2 years, he relocated to Susanville to join our team at Thompson Peak Veterinary Clinic full time. He is excited to be working in the community, practicing large and small animal medicine. In his free time, he enjoys camping, hiking, and horseback riding, as well as returning to Cedarville on weekends to help out on his family’s ranch.

DR. KALEE TERRILL

DR. KALEE TERRILL

DVM

Dr Kalee Terrill was born and raised here in Susanville, Ca. She graduated from Lassen High School in 2008 and attended CSU, Chico, where she received her BS in Animal Science while working at the university’s...

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DR. KALEE TERRILL

DVM

Dr Kalee Terrill was born and raised here in Susanville, Ca. She graduated from Lassen High School in 2008 and attended CSU, Chico, where she received her BS in Animal Science while working at the university’s Dairy Unit. After graduating from CSU, Chico, Dr. Terrill attended Kansas State University and graduated cum laude with her DVM in 2019. Upon graduation, Dr. Terrill came home to begin practicing at Thompson Peak Veterinary Clinic. She is thrilled to be home in the mountains where she enjoys spending time outdoors, playing music and drawing.

Our Staff

KIKUMI RIGNEY

KIKUMI RIGNEY

LEAD RECEPTIONIST

Kikumi is our amazing knowledgeable lead in the front. She has experience as a vet tech that she combines with her caring people skills to offer the best for our clients. Kikumi is originally from Japan...

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KIKUMI RIGNEY

LEAD RECEPTIONIST

Kikumi is our amazing knowledgeable lead in the front. She has experience as a vet tech that she combines with her caring people skills to offer the best for our clients. Kikumi is originally from Japan but makes Janesville her home with her husband and 2 children. Her house is home to Yuki a Great Pyrenees, Raider her Bull Mastiff and Mollee a terrier mix and 2 cats Kumquat and Buster. She spends most of her time away from work involved with her kid’s activities but in quiet time she loves spending time doing anything with her dogs, hiking, swimming and even just watching TV.

KATTIE BEACH

KATTIE BEACH

RVT

Kattie grew up in Lodi Ca and went to school in Stockton to receive her Associates in Science and become a Registered Veterinary Technician. She relocated to Susanville with her family and joined our...

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KATTIE BEACH

RVT

Kattie grew up in Lodi Ca and went to school in Stockton to receive her Associates in Science and become a Registered Veterinary Technician. She relocated to Susanville with her family and joined our team in 2021. Kattie is our surgical technician and loves orthopedic TTA procedures, but is just as willing to put on her boots and go on a ranch call if needed.

She loves to read and spend time with her terrier mix “Jinx” (angel child) and Damian the monster crazy cat that wrestles with Jinx.

ASHLEY J

ASHLEY J

VETERINARY TECH

Ashley has been one of our familiar faces in the clinic since 2015. Over the years she has helped in both the front and back, and is a great team player. Ashley completed her veterinary assistant classes,...

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ASHLEY J

VETERINARY TECH

Ashley has been one of our familiar faces in the clinic since 2015. Over the years she has helped in both the front and back, and is a great team player. Ashley completed her veterinary assistant classes, and joined our team after 6 years of experience in Monterey Ca. her hometown. Ashley is our bully lover and has 3 at home named Karma, Rebel, Outlaw and the 2 Frenchie’s Stitch and Maverick. She and her husband also share a home with 2 cats in Susanville. Ashley loves to hike, travel and spend time with her family.

SUSANNA NG

SUSANNA NG

VETERINARY TECH

Susanna is a Susanville native, that has returned with her fiancé to raise her daughter Stella in her hometown. Susanna received her B.A. in psychology from Chico State and her A.S. in Veterinary Technology...

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SUSANNA NG

VETERINARY TECH

Susanna is a Susanville native, that has returned with her fiancé to raise her daughter Stella in her hometown. Susanna received her B.A. in psychology from Chico State and her A.S. in Veterinary Technology from Yuba College. She rescued a feral kitten many years ago named Blacky that does not like other animals, so she is an only 4 legged child. Susanna and her family enjoy spending time in nature hiking and fishing. Picnics with her daughter are a favorite.

KATIE F

KATIE F

ASST TECHNICIAN

Katie grew up in Davis Ca. but enjoys living in this area with her husband and 2 beautiful young daughters. She is currently enrolled online in the Ashworth Vet Technician Program to achieve her RVT license...

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KATIE F

ASST TECHNICIAN

Katie grew up in Davis Ca. but enjoys living in this area with her husband and 2 beautiful young daughters. She is currently enrolled online in the Ashworth Vet Technician Program to achieve her RVT license in the near future.

When Kimber, her 10 yr old German Shepherd, was a puppy she became fascinated with vet medicine. Her interest blossomed from there turning into the passion she has now, loving to care for them, as well as the science & medical aspect of the profession. She shows this with her attention and care in the rooms with our patients.

Her family stays busy loving the outdoors and hiking. They also have an older dog Charlie and 3 chickens at home.

TARAH

TARAH

ASST TECH

Tarah is a Lassen County home grown and has deep roots in our community. Her love of animals comes naturally, so when she had the opportunity to join our team it was a perfect fit to put her heart into...

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TARAH

ASST TECH

Tarah is a Lassen County home grown and has deep roots in our community. Her love of animals comes naturally, so when she had the opportunity to join our team it was a perfect fit to put her heart into vet medicine. Tarah is our energetic just say “yes” go-to-person on the team. She is always there to help with a smile, our pet patients and clients love her.

Tarah is the “MOM” to three very busy boys and so proud of each one. They have 5 dogs and 1 turtle at home to share the craziness.

BAILEY

BAILEY

ASST TECH/CSR

Bailey was born and raised in Susanville, graduating Lassen High in 2017. She was very involved in 4H and FFA raising a small flock of show sheep. She still helps our local youth with showmanship lessons...

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BAILEY

ASST TECH/CSR

Bailey was born and raised in Susanville, graduating Lassen High in 2017. She was very involved in 4H and FFA raising a small flock of show sheep. She still helps our local youth with showmanship lessons for 4 H members. Breeding sheep over the years brought its challenges which sparked her interest in vet medicine. Bailey has great customer service skills to add to our team up front and is taking on new challenges as an Assistant Technician.

Bailey and her high school sweetheart married this last year and have made their home here. They love the outdoors (fishing, hunting, golfing etc.) and have two four legged kids. “Missy” a blue heeler and “Boone” a border collie.

SIERRA CSR

SIERRA CSR

LARGE ANIMAL TECH

Sierra grew up in a rural community in So. California, called Aguanga. She graduated from Chaparral High then directly came up to Feather River College in Quincy to complete her Bachelors in Equine Science...

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SIERRA CSR

LARGE ANIMAL TECH

Sierra grew up in a rural community in So. California, called Aguanga. She graduated from Chaparral High then directly came up to Feather River College in Quincy to complete her Bachelors in Equine Science and Ranch Management in 2021 and is a Dixie Fire Survivor. Sierra joined our team to gain more hands-on experience and expand her education in vet medicine because of her love of animals large and small. She is a great help on ranch calls with her knowledge and her smile lights up our front office when she is helping our clients in customer service.

Sierra and Max (the better half) share life with Cassie and Tessa (border collie/kelpies) which also can be found helping as “office assistants” some days and 4 spayed rescue cats from Lassen County. Sierra most often when not at work can be found with her 3 AQHA horses. “May” 4yr Blue Roan mare, “Quinn” 7yr Grulla mare, and “Percy” her 2yr old Palomino gelding.

JANET

JANET

CSR

Janet grew up in New England and came to us with a variety of experiences which included everything from art and haircutting to running sled dogs in Alaska. She has many memories of working in a boarding...

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JANET

CSR

Janet grew up in New England and came to us with a variety of experiences which included everything from art and haircutting to running sled dogs in Alaska. She has many memories of working in a boarding kennel in the San Diego area and living working on a cutting horse & stock dog facility. She is known for her love of training her Border Collies and has competed and placed very well in tons of competitions over the years. Her experience and big heart are noticed when she is at the desk in the front.

Janet and her husband make their home on many acres in Doyle, surrounded by her best horse, cats, ducks, lots of sheep and of course her many Border Collies of 16 years.