Your pet
deserves the best mobile veterinarian

Mobile veterinary services tailored for your furry companion's wellbeing in Los Angeles, CA.

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About Us

About Us

About Us

Aristide
a whole-body approach

Dr. Horn is an award-winning equestrian and dedicated animal lover who founded Aristide, Inc., a mobile veterinary practice, in March 2023. Her extensive and diverse experience across France, Germany, and California shapes a broad, thoughtful approach to veterinary medicine, allowing her to provide exceptional, high-quality preventive care. Pets under her oversight receive the best possible guidance, treatment, and support for long, healthy lives. Dr. Horn earned her veterinary degree from Hannover University (2010) and her PhD from the University of Berlin (2017), specializing in veterinary ophthalmology research. Fluent in English, German, French, and proficient in Spanish, she brings a truly international perspective to every patient she cares for.

Dr. Horn is dedicated to enhancing your pet’s wellness with her whole body approach.

15+

Years experience

15+

Years experience

15+

Years experience

100%

Positive reviews

100%

Positive reviews

100%

Positive reviews

Services

Services

Services

Veterinary care for every life stage

From checkups to USDA-endorsed health certificates, Dr. Horn, as a trusted GP, provides Fear Free® care, treating every pet like her own with expert guidance and oversight.

General Care

Puppy Exams

Adult Wellness

Senior Pet Comfort Care

Health Certificates (Domestic/International)

First Visit & Onboarding Exam Start at $350

Book Now

Your Pet Deserves the Best Care.

Additional Services

Laboratory Testing

Vaccinations

Parasite Prevention

Microchipping

Referral Management & Medical Oversight

Book Now

Schedule an Appointment for Pricing

General Care

Puppy Exams

Adult Wellness

Senior Pet Comfort Care

Health Certificates (Domestic/International)

First Visit & Onboarding Exam Start at $350

Book Now

Your Pet Deserves the Best Care.

Additional Services

Laboratory Testing

Vaccinations

Parasite Prevention

Microchipping

Referral Management & Medical Oversight

Book Now

Schedule an Appointment for Pricing

Additional Services

Laboratory Testing

Vaccinations

Parasite Prevention

Microchipping

Referral Management & Medical Oversight

Book Now

Schedule an Appointment for Pricing.

General Care

Puppy Exams

Adult Wellness

Senior Pet Comfort Care

Health Certificates (Domestic/International)

First Visit & Onboarding Exam Start at $350

Book Now

Your Pet Deserves the Best Care.

General Care

Puppy Exams

Adult Wellness

Senior Pet Comfort Care

Health Certificates (Domestic/International)

First Visit & Onboarding Exam Start at $350

Book Now

Your Pet Deserves the Best Care.

Online Pharmacy

Order your pet’s medications, supplements, treats, and toys easily through our online pharmacy — delivered right to your door. We’ll set up your account; just click the link and log in with your email. If you find a lower price in California, we’ll happily match it.

Go to Pharmacy

Go to Pharmacy

Go to Pharmacy

Testimonials

Testimonials

Testimonials

Kind words from our clients

Lena has been an incredible support in the health and well-being of our dog. She is attentive to the owner’s request in the steps of treatment. She takes the time with both owners and pets, which sets her apart from many other. Lena is multi lingual which was of great help for our family. She is overall a super vet, loving and caring. Couldn’t ask for more."

– Sophie L, Max’s Owner

Lena has been an incredible support in the health and well-being of our dog. She is attentive to the owner’s request in the steps of treatment. She takes the time with both owners and pets, which sets her apart from many other. Lena is multi lingual which was of great help for our family. She is overall a super vet, loving and caring. Couldn’t ask for more."

– Sophie L, Max’s Owner

"Dr. Horn is an excellent veterinarian and a wonderful person. She’s the only veterinarian who looked at my dog Pika holistically and focused on Pika’s overall health and well-being, rather than hyper-specializing without connecting the dots. She will never over-treat or over-medicate, but also has great connections with veterinary surgeons and other specialists if needed. My dog adores Dr. Horn too and is never stressed around her."

– Nadia, Pika's Owner

"Dr. Horn is an excellent veterinarian and a wonderful person. She’s the only veterinarian who looked at my dog Pika holistically and focused on Pika’s overall health and well-being, rather than hyper-specializing without connecting the dots. She will never over-treat or over-medicate, but also has great connections with veterinary surgeons and other specialists if needed. My dog adores Dr. Horn too and is never stressed around her."

– Nadia, Pika's Owner

"Dr. Horn is an excellent veterinarian and a wonderful person. She’s the only veterinarian who looked at my dog Pika holistically and focused on Pika’s overall health and well-being, rather than hyper-specializing without connecting the dots. She will never over-treat or over-medicate, but also has great connections with veterinary surgeons and other specialists if needed. My dog adores Dr. Horn too and is never stressed around her."

– Nadia, Pika's Owner

Dr. Horn practices amazing medicine and between her knowledge and kindness she has not only taught me so much, but inspired me to be a better pet owner. She exudes professionalism and has the ability to make both people and animals around her feel safe and comfortable."

– Kai T, Buddy’s Owner

Dr. Horn practices amazing medicine and between her knowledge and kindness she has not only taught me so much, but inspired me to be a better pet owner. She exudes professionalism and has the ability to make both people and animals around her feel safe and comfortable."

– Kai T, Buddy’s Owner

My 15 year old cat was a mere shadow of himself, weight loss, lethargy, and generally seemed miserable. I had brought him to other vets and the experience was always stressful and, after the visits, no one had anything helpful to say. Aristide came to the house, took their time and made sure Scout was comfortable with every test and procedure before moving forward. They came back with conclusive diagnostics and a solid treatment plan. He's gained weight and is coming back to his old self. We thought we were losing him, but we simply hadn't found the right team yet. Not only are they highly skilled, they also have a wide network of equally impressive colleagues and labs that bring in other areas of expertise to contribute to the overall treatment of your pet. Their compounding pharmacy, MixLab, is the best I have ever seen, and they even had a home visit cardiologist to check on a potential heart murmur before we moved forward with any other treatments. They are caring, smart innovative, kind, good listeners, and truly love and understand animals.

– Lance S, Scout's Owner

"With amazing professionalism, dedication & profound knowledge Dr. Horn helped me with my new puppy. Dr. Horn advised me not only about vaccines, parasite control, dental care, travel requirements, grooming & kennel training. She also helped me with her great experience & love for animals to provide a good & healthy life for my new pet. I’m very grateful to have such a caring veterinarian to rely on whenever a problem arises."

– Manuela W, Snowball’s Owner

"With amazing professionalism, dedication & profound knowledge Dr. Horn helped me with my new puppy. Dr. Horn advised me not only about vaccines, parasite control, dental care, travel requirements, grooming & kennel training. She also helped me with her great experience & love for animals to provide a good & healthy life for my new pet. I’m very grateful to have such a caring veterinarian to rely on whenever a problem arises."

– Manuela W, Snowball’s Owner

"With amazing professionalism, dedication & profound knowledge Dr. Horn helped me with my new puppy. Dr. Horn advised me not only about vaccines, parasite control, dental care, travel requirements, grooming & kennel training. She also helped me with her great experience & love for animals to provide a good & healthy life for my new pet. I’m very grateful to have such a caring veterinarian to rely on whenever a problem arises."

– Manuela W, Snowball’s Owner

Dr. Horn is extremely precise and dedicated to the care of each patient. Her attention to detail is unmatched. Her kind and caring nature makes her a pleasure to work with!"

– Thomas K, Milo’s Owner

Dr. Horn is extremely precise and dedicated to the care of each patient. Her attention to detail is unmatched. Her kind and caring nature makes her a pleasure to work with!"

– Thomas K, Milo’s Owner

"My dog Chase and I met Dr. Lena Horn over a year ago. We quickly made an appointment for his general check up and to check in with his teeth too. Needless to say, we were so glad we switched over to Dr. Horn. We loved her energy, spirit and most importantly how she took the time to explain everything she recommended for Chase. She truly cares and you can feel that. She is always on time, present, and extremely knowledgeable. We will only go to Dr. Horn now and have sent many of our other dog friends to her, needless to say, they are just as happy! Thank you Dr. Horn we are so grateful for you!"

– Dominic, Chase’s Owner

"My dog Chase and I met Dr. Lena Horn over a year ago. We quickly made an appointment for his general check up and to check in with his teeth too. Needless to say, we were so glad we switched over to Dr. Horn. We loved her energy, spirit and most importantly how she took the time to explain everything she recommended for Chase. She truly cares and you can feel that. She is always on time, present, and extremely knowledgeable. We will only go to Dr. Horn now and have sent many of our other dog friends to her, needless to say, they are just as happy! Thank you Dr. Horn we are so grateful for you!"

– Dominic, Chase’s Owner

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How to get in touch with us

Opening Hours
Monday - Thursday | 9:00 AM - 6:00 PM

Have a question? We're always here to help.

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Send us your inquiry, please include your address and the type of services you need for your pet.

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Trusted Emergency Care Options

If you have an emergency after our regular business hours or you can not get in touch with us, please contact an emergency facility. Here a selection:

Contact

Trusted Emergency Care Options

If you have an emergency after our regular business hours or you can not get in touch with us, please contact an emergency facility. Here a selection:

Contact

Trusted Emergency Care Options

If you have an emergency after our regular business hours or you can not get in touch with us, please contact an emergency facility. Here a selection:

Contact