Middletown Animal Hospital

Middletown Animal Hospital The Vets Your Pets Would Choose! Our Mission: We Promise to Provide: Compassionate, Expert Service. We are the Vets Your Pets Would Choose!!!

Doctors:
Dr. Joanna Holtz, DVM
Dr. Dana Shackelton, DVM
Dr. Jeffrey Smith, DVM, CCRP
Dr. Sandy Knowles, DVM
Dr. Jennie Lane, DVM, MPH
Dr. Lauren Penney, DVM
Dr. Courteney Thompson, DVM

Compassionate, Expert, Well-Communicated, and Affordable Veterinary Care Middletown Animal Hospital is a full-service veterinary facility for all animals located in southern Lake County. Our professional and friend

ly staff at Middletown Animal Hospital strives to provide state of the art equipment and the best possible medical, surgical, and dental care for their pets. We provide excellence in veterinary care in Middletown and surrounding areas including Hidden Valley Lake, Cobb, Kelseyville, Lower Lake, Lakeport, Clearlake, and Calistoga. Please contact us at 707-987-2000 or email [email protected] and we will promptly get back to you. At Middletown Animal Hospital, we treat your pets like the valued family members they are.

This little girl was found on Hwy 29. No microchip or collar. If you recognize her please text our office number, 708-98...
01/03/2026

This little girl was found on Hwy 29. No microchip or collar. If you recognize her please text our office number, 708-987-2000, and we will connect you with the Good Samaritan keeping her safe and warm.

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12/31/2025

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12/23/2025

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12/13/2025

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12/12/2025

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🎄 Fill a Stocking for a Shelter Dog!🎄

✨This holiday season, help us spread some cheer to the animals in our care! Stockings are hung and ready, and you’re invited to pick an animal and fill their stocking yourself with donated goodies.

✨You can bring in treats, toys, or any pet-friendly items you’d like to give. Once you choose an animal, you can fill their stocking right here at the shelter and help make their holiday a little brighter.

🐾✨Thank you for helping us share the holiday spirit—one stocking at a time!✨🐾

📍4949 Helbush Dr in Lakeport
☎️ 707-263-0278

Thank you Biscuit and Moose for the holiday treats! 🐾🎄It made our day!
12/05/2025

Thank you Biscuit and Moose for the holiday treats! 🐾🎄It made our day!

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11/27/2025

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💙 JETHRO UPDATE: He can hear!!

Jethro had a full medical evaluation, and this sweet boy is finally getting the care he’s been needing. He is back in his foster home, eating and resting comfortably.

Here’s what we learned:

Severe Ear Infections. His ears were extremely inflamed and plugged with debris and infection. They were cleaned and treated with long-acting medication and will need follow-up care. Could be caused by allergies.
Heart Murmur, High Blood Pressure. X-rays indicate no heart failure, which is great news. He’ll need a cardiology work-up to learn more.
Neurologic Concerns & Blindness. Jethro has a supposed history of seizures and is blind. Unknown if he had past trauma, so we’re monitoring closely for any neurologic changes and will explore further diagnostics as needed. He has not had any seizures so far.
Foreign Objects in Intestines. X-rays showed rocks and a small object. Nothing is obstructed, but he’s on GI meds while these (hopefully) pass safely.
Fleas. The wonderful staff at MAH gave him the VIP spaw treatment so he's squeaky clean, infestation cleared and started on prevention. And heartworm negative!

Through all of this, Jethro has been a good boy and grateful for the comfort and care. The goal is to get him improving. We’ll continue to monitor him and will update everyone as he progresses. 💙

Jethro’s care will involve continued exams, medications, cardiology and neurology follow-up, and long-term management of his medical needs. We appreciate everyone for their support and generosity! Thank you for giving Jethro this chance!

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11/26/2025

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11/19/2025

Talk to a veterinarian about responsible use of antibiotics in animals. Veterinary oversight helps preserve antimicrobial effectiveness in fighting disease.

Today is the official start of AMR Awareness Week. AMR stands for “Antimocromibal Resistance” 🦠💊🦠💊
11/19/2025

Today is the official start of AMR Awareness Week. AMR stands for “Antimocromibal Resistance” 🦠💊🦠💊

🎉Please help us give a warm welcome to our newest associate, Isabel Vaishampayan, DVM! 🎉Dr. Vaishampayan graduated from ...
08/27/2025

🎉Please help us give a warm welcome to our newest associate, Isabel Vaishampayan, DVM! 🎉

Dr. Vaishampayan graduated from UC Davis School of Veterinary Medicine in 2025, after earning dual bachelor’s degrees in Pre-Veterinary Science and Public Health from the University of Massachusetts – Amherst. She's always been drawn to the challenge of caring for animals who can’t speak for themselves—and finds deep joy in seeing sick or injured pets bounce back to their happy, healthy selves.

She has a special interest in livestock medicine, where she enjoys working with such unique animals and appreciates the opportunity to get her hands dirty while working hard for her goals. While in vet school, she served as president of the Student American Veterinary Medical Association (SAVMA) and remains committed to giving back to the profession.

When she's not at the clinic, you’ll likely find her running, baking, reading, or relaxing with her pets—two sweet senior dogs, Manfred and Tara, and her lizard, George.

She’s excited to be part of the team and looks forward to caring for your animals like they’re her own!

Address

21503 S State Highway 29
Middletown, CA
95461

Opening Hours

Monday 8am - 7pm
Tuesday 8am - 7pm
Wednesday 8am - 7pm
Thursday 8am - 7pm
Friday 8am - 7pm
Saturday 8am - 6:30pm

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Doctors: Dr. Jeffrey Smith, DVM, CCRP Dr. Joanna Holtz, DVM Dr. Dana Shackelton, DVM Compassionate, Expert, Well-Communicated, and Affordable Veterinary Care Middletown Animal Hospital is a full-service veterinary facility for all animals located in southern Lake County. Our professional and friendly staff at Middletown Animal Hospital strives to provide state of the art equipment and the best possible medical, surgical, and dental care for their patients. We offer tours of our state of the art facility and encourage owners to remain with their pet during treatment. Middletown Animal Hospital provides excellence in veterinary care in Middletown and surrounding areas including Hidden Valley Lake, Cobb, Kelseyville, Lower Lake, Lakeport, Clear Lake, and Calistoga. Please take a moment to contact us today to learn more about our veterinary practice and to find out how Middletown Animal Hospital can serve the needs of you and your cherished pet. All Valley Equine, a part of Middletown Animal Hospital, provides specialized services for horses and their owners. We are the only Veterinary Hospital in our county who has 3 experienced equine veterinarians. Our fully-equipped ambulatory truck provides mobile service throughout Lake County, Napa County, and Sonoma County. The truck is equiped with portable X-Ray, Ultrasound, Shock Wave Unit, Laser Therapy, Mechanized Dental Instruments, Surgery Packs, a complete Pharmacy, and all the tools and instruments needed for field procedures -- even a dart gun! Our experienced veterinarians, Dr. Jeff Smith, Dr. Joanna Holtz, and Dr. Dana Shackelton are here 6 days a week for your convenience and they take after hours emergency call for current clients until 9:00 pm. We also have a new indoor/outdoor pet boarding center, grooming services, rehabilitation center and quality pet foods and pet supplies. Check out our blog, doctor s articles and pet videos on our website. Please contact us at 707-987-2000 or email [email protected] and we will promptly get back to you. At Middletown Animal Hospital, we treat your pets like the valued family members they are. We are the Vets Your Pets Would Choose!!!