Your pet’s health and happiness is our first concern

Our veterinary hospital has a long history of caring for and treating beloved pets. For over 75 years, Greenwich Animal Hospital has been a leading provider of veterinary services in Greenwich, CT.  Our caring and dedicated staff of cat and dog veterinarians provide our animal friends with expert and highly personalized attention. Our vets in Greenwich, Connecticut provide extra care and attention to detail that reflects our commitment to providing an exceptional standard of quality service.

As just the second owner of Greenwich Animal Hospital, Dr. David Kramer is proud to be part of the town’s rich history. Since 1989, Dr. Kramer and his staff have offered the community both outstanding medical care for their pets, as well as thoughtful customer service for their pet parents.

If you are looking for an animal hospital in Greenwich that offers quality veterinary services and vets that go the extra mile to care for your pet, schedule an appointment online or call us today at (203)-869-0534.

We are here to service the cities of Greenwich, CT, Old Greenwich, CT, Stamford, CT, Cos Cob, CT, Riverside, CT, Rye Brook, NY, Port Chester, NY, Rye, NY, Norwalk, CT, New York, NY and more!


Awesome Pet Parents
Use PetDesk!

PetDesk enables you to make 24/7 appointment requests, see your pet’s vaccine history, view office hours, refill prescriptions and more! It seamlessly syncs with your phone’s calendar and automatically notifies you of upcoming appointments, when vaccinations are due and keeps track of your pet’s medication schedule.

Download the PetDesk App.


Hear what our clients are saying about us

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★★★★★ Such a nice, caring, staff who puts you at ease. Really appreciate the care our cat Farah received when she was sick. Knowledgeable and kind. Thank you!BrettBrett ★★★★★ I cannot say enough good things about Greenwich Animal Hospital! The entire staff is so caring and attentive to both the animals and their owners. They truly treat your pet as if they were their own. I am so grateful for their expertise and compassion. I highly recommend Greenwich Animal Hospital to anyone looking for top-notch care for their furry family members. Thank you for everything you do! 🐾 #GreenwichAnimalHospital #BestVetEverRaga RRaga R ★★★★★ A pleasant first time experience. Organized and welcoming staff. Would have loved to be present with my dogs during their visit.Doron S.Doron S. ★★★★★ We have been with GAH for several years and we love them! The front desk and assistants are all great. The whole team inclusive of the doctors are responsive, helpful and kind to their patients (and patient with their parents). Our English bulldogs and our persnickety havanese (Riggs, Bo and Watsy) are all comfortable with them and we always know they are in caring and capable hands.Verna E.Verna E. ★★★★★ Great doctors and staff 👍Diana H.Diana H. ★★★★★ Dr hiller and Nicole Martinez were so professional and helped our Nova. We were on vacation and had an emergency visit , they took care of her as if she was there own loving lab.Marie R.Marie R. ★★★★★ First time there was a wonderful experience for both myself and my dogs. Everyone was so kind and explained everything to me and answered all questions I had. I highly recommend greenwich animal hospital to anyone who needs a vet for their pets.Dorothea C.Dorothea C. ★★★★★ We miss Dr. Kramer already but are so happy that some of the staff that have been there for years are staying. My Sophie would only go to Mia during covid exchanges outside; it's almost four years later and Sophie's affection for Mia has not waned. It's nice to have front staff who love dogs as much as the veterinarians!Suzanne G.Suzanne G. ★★★★★ If I could give them more stars I would, not only have they taken care of my pet's but years ago, when I started the career in the veterinary world, they were one of the teams that taught me What it is to be an animal care Giver and I take great pride in saying. That they are the best in the area for the well-being of your pets.ricardo M.ricardo M. ★★★★★ Wonderful doctors, great staff, and beautiful new offices. We wouldn’t take our three doggies anywhere else !!!Toni M.Toni M. ★★★★★ The team at Greenwich Animal Hospital is second to none. I always know my boy is in the best hands and that I can can always count on the most current and thorough recommendations every single time.Linda W.Linda W. ★★★★★ My family has used Greenwich Animal Hospital for almost 30 years and multiple pets. They have always taken wonderful care of our dogs (and one cat!). They recently went through a full renovation and update of the facility and it is even better. Thank you to the kind, caring and wonderful staff and doctors.Edward W.Edward W. ★★★★★ I highly recommend Greenwich Animal hospitalThe staff is professional and friendly.Andi S.Andi S. ★★★★★ Dr. Beaurline and Justin are awesome - they made my anxious Bernedoodle feel so comfortable during his visit!Gianna P.Gianna P. ★★★★★ Great visit with Dr Kramer, and Nicole - who gave me a detailed schedule to follow medications accordingly. Thank you!Barb B.Barb B. ★★★★★ Traveling from out of town, we needed a prescription refill for our dog.Greenwich Animal Hospital was very quick to help when our vet faxed them our dog’s records.Edward T. M.Edward T. M. ★★★★★ Greenwich Animal is simply the best. Dr. Simunek and his team are incredibly thorough and provided excellent care for our three dogs. I love the new hospital design and always happy to come back!Andrew K.Andrew K. ★★★★★ We love Greenwich Animal Hospital! Been a client for 10 years and are looking forward to the next 10 years!! Thank you for all you do for our pets!John S.John S. ★★★★★ My dog Holden has had the absolute best experience with GAH. Every single staff member is incredibly talented and knowledgeable. As a rescue, Holden was afraid of going to the vet, but GAH has gone above and beyond, including recently finishing a large renovation to improve the client experience, during every visit we’ve had to ensure all clients - owner and their furry loved ones - are properly taken care of and given the attention they need.Josie H.Josie H. ★★★★★ Carlee and Dr Amezquita made my puppy’s first visit the best experience we could have asked for. Between treating my puppy with care and patience while getting shots and answering all our questions, we couldn’t have asked for a better experience.ari L.ari L. ★★★★★ We’re relatively new to Greenwich and when I asked for vet recommendations Greenwich Animal Hospital was at the top. Dr. Xander Simunek is now our vet and today at our two dogs’ annual wellness exams, it was so reassuring to see how calm both dogs were around Dr. Simunek and vet tech Michelle, which hasn’t been my or their past experiences with other vets. Exams went smoothly. Staff up front are efficient and friendly. The clinic was recently renovated and looks great. Super easy to book appointments via the PetDesk app. Have also dealt with GAH when one of our dogs had a serious injury and I felt then as today that she was/is in great hands.Alexandra N.Alexandra N. ★★★★★ I highly recommend Greenwich Animal Hospital. When I moved to Connecticut, one of my dogs had a UTI but two treatments at an emergency clinic and one vet didn’t clear it up. And it was getting worse. In desperation, I called the hospital, got to see a vet immediately and within a week the UTI was cleared up. They are now my vet for both of my dogs.The responsiveness, kind care and treatment have been wonderful, as has been the staff. I m, Honey and Butter could not be happier that we found Greenwich Animal Hospital.Katherine R.Katherine R. ★★★★★ Our two Boys, Theodore and Quincy are not only pets, but great companions. The very least we can do is give them the gift of good health and we’ve been a long time client of Greenwich Animal Hospital. We are always treated with the utmost level of respect and professionalism. Keep up the good work!P F.P F. ★★★★★ Beautiful new building. Went in to buy dog food as I was running low during the holidays visiting my family. The front desk happily assisted me. Very easy transaction. Staff were very kind and pleasant.Chloe RChloe R ★★★★★ Friendly professionals. Nice new space.Teauffer B.Teauffer B. ★★★★★ Dr. Kramer and his staff were wonderful with my dog who is a handful. They kept him calm and happy throughout his exam and treatment. I highly recommend them.Joan C.Joan C. ★★★★★ I have absolutely love Greenwich Animal Hospital since the day I started bringing my pets there! The doctors and staff have been absolutely fantastic. I was so worried about putting my baby under anesthesia to get her teeth cleaned, but I was walked through the whole process, picked her up and dropped her off the same day, and my sweet girl walked out the door like I had dropped her off at daycare! Watching her tail wag and practically skip out of the doors just speaks unimaginable volumes; not to mention how BEAUTIFUL her teeth were!Thank you to the entire staff for your patience and reassurance! I know my pets are in the best hands!Elizabeth H.Elizabeth H. ★★★★★ I went with my cat Tobey for a wellness exam and Dr. Simunek was fantastic. He answered all of the questions I had and was very caring and informative. You can tell he loves working with the animals. The rest of the staff was very friendly as well.lejla M.lejla M. ★★★★★ If you love your pets, like I do bring them to Greenwich Animal Hospital. They away treat my pets like they are their own. Thank you to this amazing staff for making even the sick visits perfect for our fur babies!Kwe A.Kwe A. ★★★★★ If you love your pet, and need a vet in Greenwich, look no further than Greenwich Animan Hospital. Dr. Kramer and staff are just wonderful.Lin L.Lin L. ★★★★★ Superbly trained and experienced vet and office staff as well as empathetic care.We entrusted our Barbet pup Jade from 10 weeks with GAH’s care; we could not have been more satisfied with her treatment.Mitchell C.Mitchell C. ★★★★★ I have dogs at different stages of life. They love going to the Greenwich Animal Hospital where they are treated with the best of care. They were comprehensive without being alarmists. I told them that my dogs like going and they are the best judges. Thank you 🙏🏻 to GAH for taking the best care of my dogs 🐕 ❤️Lauren W.Lauren W. ★★★★★ I’m so glad we found Greenwich Animal Hospital. Our 1.5 year old dog had some unfortunate vet visits when she was younger that contributed to a significant fearfulness when going to the vet. We were ready for a change from our prior vet and from the first call to GAH I knew this would be a better experience for all of us. Dr Simunek, Justin, and the entire front desk staff have gone above and beyond to help our dog feel safe and secure at the vet and have been so patient working with me and our dog to build up her trust with them. Even so much as having her favorite treats ready and waiting ahead of her appointment. We’ve made such great progress in just a few visits and the care she’s received has been top notch. Thank you to the team at Greenwich Animal Hospital!Caitlin H.Caitlin H. ★★★★★ Greenwich animal hospital is the absolute best!!Alicia T.Alicia T. ★★★★★ Caring. Professional. Excited to see the new hospital once it’s all done!Nick S.Nick S. ★★★★★ They are so helpful and understanding and they give our fur babies the best care and loveBonnie K.Bonnie K. ★★★★★ We have been long time customers of Greenwich Animal Hospital. Every Doctor has been highly skilled and knowledgeable. Over the years they have cared for 4 of our dogs. They have diagnosed and treated a variety of health issues from relatively minor to very serious. They have performed dental cleaning, bladder stone surgery, and neutering. They were instrumental in quickly securing an appointment with a veterinarian oncologist when we were on a waiting list and not expecting to be seen for a month. They have been kind and compassionate helping with end of life decisions. The office staff and techs have always been friendly and helpful. During our most recent visit we saw the major renovation being done to the office and treatment rooms and are excited for the upgrade. Based on our experience I highly recommend Greenwich Animal Hospital. 💗🐕Sheryl M.Sheryl M. ★★★★★ Nothing short of amazing!!Carlee G.Carlee G. ★★★★★ We love Kramer !!YasmineYasmine ★★★★★ Greenwich Animal Hospital is the best in Fairfield and Westchester area.The staff is very caring and professional. Dr Kramer is excellent and very hands on.Selen Y.Selen Y. ★★★★★ Great front desk to welcome you and Dr. Hiller is fabulous. Today it's not easy finding a veterinarian who takes time to listen look and be throughly aware of my dogs overall health issues. I've been looking for quite some time to find someone with a heart that listens. Staff is key staff here very kind and they too listen.Went to vet next store one girl at the front desk was rude and treated me as if I was a criminal. Shame on her shame on the company for allowing her treat patients like this. Imagine being told if you don't like the way we do things go elsewhere! A nasty person.This is what I mean when I said looking for a veterinarian that checks all the boxes.Front desk staff and The Drs.Overall Greenwich animal hospital is a 10 in our book. Please don't confuse the two!Lonnee S.Lonnee S. ★★★★★ Great service. Honest people. Won’t push for unnecessary tests or procedure.VV ★★★★★ I’ve been a longtime customer here and they are all great drs and very attentive to all my pets needs.buffalojoeybuffalojoey ★★★★★ We have been taking our dogs to Greenwich Animal Hospital for years and have so appreciated the good care they have received. They have dealt with many health and aging issues so well and kept our dogs happy to visit.Susan S.Susan S. ★★★★★ Dr. Xander Simunek and Michelle were amazing to our baby Rosa (Frenchie). From the moment Dr. S met her and us we could tell that this would be our vet for Rosa. He took the time to chat with us and answered all of our questions. His love for what he does is obvious and we appreciated having someone who loves Rosa as much as we do looking after her. Everyone in the office was friendly and inviting. It felt like a family, and now we are luck that Greenwich Animal Hospital will be apart of ours.Nash H.Nash H. ★★★★★ I have been using this facilityl for many many years. The doctors are excellent and caring and the staff is friendly and competentdonald L.donald L. ★★★★★ Dr. Kramer is an excellent caregiver and his staff is warm and professional. They've taken great care of our pets for over 10 years.Heidi S.Heidi S. ★★★★★ Excelent service and caring peopleMaría José Guevara O.María José Guevara O. ★★★★★ I have been using Greenwich Animal Hospital for a good 25 years and have no complaints. The building is clean, they took covid restrictions and they have helpful and pleasant employees and vetinarians. I would not change.Joan Haug M.Joan Haug M. ★★★★★ Best doctors and great staff. Easy to reach. They really care about my dog and take time to best care for her. I could not be more pleased!Chip T.Chip T. ★★★★★ As first-time dog owners 3-1/2 years ago, we were inexperienced and quite anxious to do the best that we could for our new puppy. But fortunately for us, as our beloved dog has transitioned from a newborn to an adult, we've grown ever more confident that Greenwich Animal Hospital is the ideal place to trust his health and well-being to.Robert M.Robert M. ★★★★★ Dr Modi is an incredible veterinarian. She has taken such great care of my dog who has been diagnosed with a massive liver tumor. She really cares, she is honest, and all about the best treatment for your pup. I can’t say enough positive things about herKara C.Kara C. ★★★★★ Greenwich Animal Hospital is so responsive to the needs of my dog, Baker. The doctors listen to my concerns and are kind and caring. Thank you!Julie F.Julie F. ★★★★★ I have a picky eater! She is a malti-poo with "issues." Everyone at Greenwich Animal Hospital has helped me keep her healthy and in good shape. Many thanks to all! ElaineElaine L.Elaine L. ★★★★★ Good serviceJannet T.Jannet T. ★★★★★ Been using them for decades. Great service and customer attentionAl S.Al S. ★★★★★ Dr. Modi was A-MA-ZING!!! I was so impressed by her pre-exam phone call asking and inquiring about Lola. She immediately called me when finished and came up with a plan to help get to the bottom of Lola’s allergies. I was also impressed that Dr. Modi sat with Lola after a reaction from her rabies vaccination. All these little things confirmed that I made the right decision switching Lola to Greenwich Animal Hospital. Dee also deserves a shout out! She was the first to notice that Lola got sick after her rabies vaccine. She immediately brought Lola back in and reassured me that she would be ok! Thank you 🐶Melissa C.Melissa C. ★★★★★ I can not say enough positive things about GAH. From Sara and Dee at the front desk, to the vet techs, to all of the doctors - they are fantastic in dealing with my dog and his neurotic mother who calls all the time with questions. 🙂 I highly recommend taking your fur babies to see them.Barbara D.Barbara D. ★★★★★ We have had a number of pet that were part of our family. The staff and doctors at Greenwich Animal Hospital have always been caring and supportive. We will always be part of the Greenwich Hospital family.Stephanie Hascoe SlotnickStephanie Hascoe S.Stephanie Hascoe S. ★★★★★ Our dog was having a reaction to a vaccine - dehydration - vomiting and more - the Dr was incredibly responsive - honest - and provided an outcome without a littany of tests knowing that we could go there if the initial protocols didn’t work - our dog turned around within hours - great experience - confirmed why GAH are our vets!John B.John B. ★★★★★ I took my dog here for a number of years while I was living in the area; Dr. Kramer and the group are AMAZINGLY attentive and always available. I wish I could have taken them with me when I moved.Alex TAlex T ★★★★★ This was my first time bringing my dog to Greenwich Animal Hospital. Their instructions were very clear and easy to follow - text upon arrival, they pick your pet up from your car, cell phone calls before, during and after the visit with the vet and staff were very reassuring, safe delivery back to the car. Very safe and efficient process.kelly P.kelly P. ★★★★★ I just came back from the vet and I had an amazing experience. Even under these circumstances that the whole world is facing right now Greenwich Animal Hospital really makes sure that your pet is healthy and safe. Greenwich Animal Hospital has implemented new health safety rules so that I am safe and also that my dog is safe. Special thanks to Sara!!!Kim M.Kim M. ★★★★★ This has been my animal hospital for years. They are wonderful when it comes to taling care of my pets.Lynda F.Lynda F. ★★★★★ As soon as I walk through the door I was greeted by the girls behind a desk. It was nice to see your smiling face that was trying to help my dog Vokey. The vet was amazing, she got on the floor which I’ve never seen before buyer as soon as I walked through the door I was greeted by the girls behind the desk. It was nice to see your smiling face that was trying to help my dog Vokey. The vet was amazing, she got on the floor which I’ve never seen before buy a VET She Was very accommodating and thorough through the whole examination. That made me very calm knowing my dog was in great hands that loved her as much as I love her. I can only get five stars but if there was one where I can give 100 stars they would get 100Joe F.Joe F. ★★★★★ GAH has cared for 8 dogs in my family over the past 42 years. Doctors and staff are knowledgable and more importantly they truly care about your pet. Facility is always clean and up to date. Wouldn't dream of going elsewhere.Rick ERick E ★★★★★ As posted elsewhere: Best. Vets. Ever. Thank you Dr Kramer and Dr Hiller for taking such good care of Banjo and Jeannie. Can't say enough good things about both of you and the entire staff.Lindsey M.Lindsey M. ★★★★☆ Been going to this place for over 14 years and they truly served us well throughoutHudson Z.Hudson Z.js_loader


8:00am - 5:00pm


8:00am - 5:00pm


8:00am - 5:00pm


8:00am - 5:00pm


8:00am - 5:00pm


Temporarily Closed



Our Services

Our Promise to You

To provide personal, compassionate, and individualized healthcare for each of our patients, so that they and their family may enjoy happy, healthy, long lives together.

To practice the most state-of-the-art medicine, keep current with continuing education, while always holding true to our core values.

To honor the special bond between animals and their people by providing the very highest levels of comfort, care, and attention in the hardest of times, when our best friends are ill.

What's Next

  • 1

    Call us or request an appointment online.

  • 2

    Meet with a doctor for an initial exam.

  • 3

    Put a plan together for your pet.

They are so helpful and understanding and they give our fur babies the best care and love

Bonnie K.

GAH has cared for 8 dogs in my family over the past 42 years. Doctors and staff are knowledgable and more importantly they truly care about your pet. Facility is always clean and up to date. Wouldn’t dream of going elsewhere.

Rick E.

The front desk staff are friendly, helpful and very nice to our rambunctious English bulldog; the doctors take their time to explain their diagnosis and treatment. The fees are fair. We were very nervous about our pet’s neuter because of the risk for Bulldogs with anesthesia, they were understanding, took great precautions and our sweet mister is recovering perfectly.

Verna E.

I cannot say enough good things about this Animal Hospital. Not only are they kind and compassion but they are NOT looking to sell anything or talk you into unnecessary procedures or meds.

Laura M.

Greenwich Animal Hospital is so responsive to the needs of my dog, Baker. The doctors listen to my concerns and are kind and caring. Thank you!

Julie F.

I have a picky eater! She is a malti-poo with “issues.” Everyone at Greenwich Animal Hospital has helped me keep her healthy and in good shape. Many thanks to all!

Elaine L.