Companions Animal Hospital

Companions Animal Hospital is dedicated to enriching and prolonging the bond you share with your animal companions.  We believe excellent veterinary care, in conjunction with thorough communication and education, allows our companions to live longer, healthier and happier lives. Our medical, diagnostic, treatment and preventative plans will be specifically tailored to the needs of you and your companion.

Companions Animal Hospital is women owned and operated.

Our Doctors
Dr. Klemenger and Dr. Marghoob met during orientation at Cornell University College of Veterinary Medicine. They quickly became friends and study partners, and learned that they shared the same philosophy on the importance of the human-animal bond, the role animals play in our lives, and the type of practice they planned to create one day. The dream of Companions Animal Hospital began then. The opening of Companions Animal Hospital was the culmination of years of gaining experience, learning, planning, and dreaming. It has taken a long time, but they are now proud that they have created the hospital where they would want their own beloved pets to be treated. Since the grand opening of Companions Animal Hospital in June 2006, the hospital has been honored to receive commendations and awards from the community. Companions Animal Hospital was recognized by Animal Haven shelter in 2008 with the “Florence Brenner Award for honoring the commitment to helping homeless animals.” Companions Animal Hospital also received the highest community honor of “Merrick Professional of the Year” in 2008.

  • 1798 Merrick Rd
  • Merrick,NY 11566
  • Phone: (516) 431-1133
  • Fax: (516) 223-3215
  • Se Habla Español
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  • M, W, Th, F: 9AM-6PM
  • Tue: 9AM-8PM
  • Sat: 9AM-12PM
  • The hospital is closed weekdays between 1-2pm, for lunch and Hosp rounds.
  • Cathy O. Klemenger, DVM

    Dr. Klemenger completed her undergraduate studies at Adelphi University, and started her career in the world of finance as an executive at Money Magazine. She left her successful 13 year career in this field to follow her lifelong dream of becoming a veterinarian. She was accepted to Cornell University College of Veterinary Medicine, and graduated in 1995. Dr. Klemenger had worked as an associate veterinarian at a small animal hospital in Queens for 11 years before co-founding Companions Animal Hospital.

    Dr. Klemenger enjoys all aspects of small animal medicine and surgery, and has a special interest in geriatric medicine. She is the proud owner of a happy mixture of geriatric and younger canine and feline companions, all of them having special medical needs. Several of them were adopted as hospice patients, but pets that enter Dr. Klemenger’s home have a history of doing well and living longer than expected! On her free time, Dr. Klemenger enjoys gardening, cooking, and going to the beach.
    Cornell University, College of Veterinary Medicine
  • Azra B. Marghoob, DVM

    Dr. Marghoob completed her undergraduate studies at the University of Vermont and was then accepted to Cornell University College of Veterinary Medicine. She graduated in 1995 with honors and went on to complete a competitive internship in small animal medicine and surgery at the Oradell Animal Hospital, a large referral and emergency hospital in New Jersey. She stayed on at Oradell Animal Hospital as a staff doctor before moving to Long Island. She joined the staff at North Shore Animal League as a shelter veterinarian, and became supervisor of technician continuing education during her tenure there. Missing small animal practice, in 2000 she joined Dr. Klemenger as an associate at a small animal hospital in Queens. After years of dreaming and planning, Dr. Marghoob and Dr. Klemenger finally completed a true work from the heart, the creation of Companions Animal Hospital.

    Dr. Marghoob's special interests include internal medicine, soft tissue surgery, and dermatology. Dr. Marghoob was an active board member and past president of the New York City Veterinary Medical Association. She was honored to be named 'Veterinarian of the Year' by the New York City Veterinary Medical Association in 2007. Dr. Marghoob shares her home with a rescued cavalier king charles spaniel, 3 siamese cats and a birman cat.
    Dr. Marghoob's photo companion is a 1 year old pit bull named Panda. The doctors and staff at Companions Animal Hospital do not believe in discriminating against dogs based on breed. As you can see, Panda is a happy-go-lucky girl who loves people, dogs, and love!
    Cornell University, College of Veterinary Medicine
  • Deborah Lupo-Lyons, DVM

    Dr. Lyons graduated from the Ross University College of Veterinary Medicine in 2006 after years of working as a veterinary technician, preparing herself for the rewarding call of veterinary studies. She finished her clinical training at Cornell. Dr. Lyons has spent much of her time as a veterinarian as an emergency and clinical care doctor, as well helping out at shelters. She also devotes much of her time to a feral trap-neuter-release cat program. Dr. Lyons has always loved animals and loves what she does.

    Dr. Lyons shares her home with a rescue cat from Saint Kitts named Tilt, a barn cat named Simone, and a rescued chocolate lab mix named Yogi. Aside from veterinary medicine, Dr. Lyons spends her time gardening, playing pool, bonding with her family, and working on home improvement projects. She hopes to one day travel the world.
    Ross University, College of Veterinary Medicine
  • Nina Malik, DVM

    Dr. Malik received her veterinary degree from Cornell University College of Veterinary Medicine and completed an internship in Small Animal Medicine and Surgery at the University of Pennsylvania. Upon completion of her internship, she worked as an emergency and critical care doctor in a specialty animal hospital. While working as an emergency veterinarian, Dr. Malik often encountered patients who had chronic diseases, such as severe arthritis, inflamatory bowel disease, or paralysis, that she desperately wanted to help. Often these animals had exhausted their treatment options with traditional Western medicine. This is when she began looking for more tools like acupuncture to help heal her patients.

    Dr. Malik was trained and certified in veterinary acupuncture through the International Veterinary Acupuncture Society and completed an internship focusing exclusively on veterinary acupuncture in a holistic hospital in Pennsylvania. She is now a member of the International Veterinary Acupuncture Society, the American Academy of Veterinary Acupuncture, and the American Veterinary Medical Association. Dr. Malik's mission as a veterinarian is to provide quality and compassionate care for small animals through integrative veterinary medicine. She believes in the best advanced Western therapies available and in the ancient healing art of acupuncture. Her goal is to bridge the connection between these two disciplines so that integrative veterinary medicine is recognized for the benefits it provides.
    Cornell University, College of Veterinary Medicine
  • Irene Jimenez

    Hospital Manager

    Irene has been with Companions Animal Hospital since before it opened in 2006.  She was an instrumental part of the establishment and construction of the hospital, which started in 2005.  Today, she is a critical part of the day-to-day business operations of the practice.  Irene left a successful career as the head of training for individuals with disabilities at a large not-for-profit organization called Abilities.

    Her life-long dream was always to work with animals, and working at Companions has allowed her to do just that.  In between her long hours working in front of the computer and on the phone, you can often find Irene visiting and comforting sick or recovering patients in the hospital.  She has adopted 2 homeless pets since starting at Companions, Sammy a Schnauzer who was abandoned after being hit by a car, and Heather, a fox terrier who was left to languish in a cage at a pet store for 11 months before going to a shelter and then being fostered and then adopted by Irene.
  • Crystal Motz

    Licensed Veterinary Technician

    Crystal has been with Companions Animal Hospital since its opening in 2006.  She attended LaGuardia Community College and graduated to become a licensed veterinary technician in 2000.  Dr. Klemenger and Dr. Marghoob have worked with Crystal since she entered the veterinary field as an assistant back in 1998.  Crystal is also a licensed human phlebotomist.  Crystal is an extremely gifted veterinary nurse.  She has a gentle way with her patients and truly loves the animals.  She has nursed countless orphaned puppies, kittens, and bunnies in her own home with great success.

    Crystal is currently working on her veterinary technician specialty in dentistry and small animal clinical practice. This is an extra and voluntary step that only a small percentage of technicians pursue. Crystal's knowledge of and interest in veterinary dentistry provide the doctors at Companions with a breadth of insight and assistance before, during, and after periodontal procedures here at the practice.

    Crystal shares her home with her daughter Madison, her mixed breed dogs Jazzmin and Annie, and her cats Autumn, Basil, and Batman.

    Crystal's photo companion is Clover, Dr. Klemenger's rescued beagle/hound mix who she helped recover from heartworm disease.
    LaGuardia Community College
  • Jessie Seifert

    Jessie joined the staff of Companions Animal Hospital in 2006.   She had taken a semester off from her rigorous college studies to re-focus and find out if the veterinary field was for her.  Needless to say, she changed her major from engineering to biological sciences.  Jessie is now a proud graduate of Dartmouth College, and joined us full-time after her graduation in 2008.  Jessie is in the process of completing the requirements to become a licensed veterinary technician.  She is a gifted and compassionate veterinary assistant and nurse, and has a special place in her heart for the often misunderstood pit bull.  She has also nursed and fostered countless puppies and kittens in her home.

    She currently shares her home with 2 pit bulls, Ripper and Shadow, and 7 rescued cats, Mowgli, Ziggy, Zita, Marbles, Gromit, Tigger and Phantom.
    Dartmouth College
  • Dawn Canas

    Front Office Manager

    Dawn has been with Companions Animal Hospital since its opening in 2006.  Dawn uses her excellent communication skills every day in helping pet owners whether it is over the phone or at the hospital front desk.  Dawn is a proud graduate of Nassau Community College, where she specialized in business administration.  She is now following her life long dream of becoming a social worker.  She is currently enrolled at Molloy College and working towards her Masters in Social Work.  We are happy to have Dawn during her non-school hours here! 

    Dawn shares her home with her husband Ernie, her two sons Austin and Justin, her boxer rescue, Dallas, and her puggle, Biscuit.
    Nassau Community College, Molloy College
  • Andrea McCarthy

    Andrea joined the staff at Companions in 2007.  She had a 25 year career in the human medical field, where she was a clinical laboratory technologist.  During this time she also raised her family, 2 daughters named Jessica and Samantha, and a son Michael.

    After retirement, she decided she wanted to work with animals.   She has a very caring way about her, and is very good at easing the worried pet owner, whether it is on the phone or in the waiting room.  Her medical knowledge is also very helpful.  Andrea spends her free time with her husband and children, and loves to travel!  Andrea shares her home with a special-needs cat named Joe, who was born with cerebellar hypoplasia.
    C.W. Post
  • Brendan Murphy

    Brendan started at Companions as a veterinary assistant in the fall of 2011 after graduating from NYU. From there Brendan realized that although his love for animals will always shine through, he's just as well suited helping our clients face-to-face as he is helping with the patients, so he began to work at the front desk as a receptionist. Brendan's positive composure helps animal companions feel comfortable while here at the practice and facilitates a contented hospital visit for pets' owners. Even though his future professional aspirations lie in the editing/publishing field, Brendan finds veterinary studies fascinating and cherishes his time here with the Companions family.

    Brendan currently shares his home with one dog, Mickey, and hopes to adopt more when possible.

    Brendan's photo companion is Clover, Dr. Klemenger's rescued beagle/hound mix and our unofficial hospital mascot, who you can hear barking away when the treat bag is around!
    New York University
  • Valerie Shea

    Valerie joined our family in the fall of 2013 and has proved to be one of our most valuable team members. She was originally introduced to Companions by her daughter, Gillian, a former CAH receptionist (who now has her doctorate and is practicing physical therapy in Boston). After a former career as a full-time 'Mary Poppins,' Valerie had moved to retail for 23 years - and is now very excited about her venture into the animal field. She thoroughly enjoys meeting and getting to know all the pets in the Companions Animal Hospital family.

    Valerie shares her home with her son, Kevin, and her husband, Donald. In her free time she enjoys traveling and biking and is an outstanding cook.

    Valerie's photo companion is Elsie, Dr. Marghoob's rescued cavalier king charles spaniel. When Dr. Marghoob originally rescued Elsie, she had been plagued with crippling socialization issues that the staff at Companions helped her work through and overcome.
    N.N.E.B. East Croydon, England
  • Carey Polcino

    Veterinary Assistant
    Carey joined the staff of Companions in 2007 as a veterinary assistant.  She loves animals and has a special gentle way around them.  Carey is known here for her creativity.  She actively thinks of ways to improve patient care and make our patients more comfortable.  Carey is entering into the human nursing field.  She has started the nursing program at Molloy College, and works at Companions during her limited free time.  It is her dream one day to become a pediatric nurse.

    Carey shares her home with her canine companion Lucy Bones, and her cats Lily, Riley and Butters.
    Molloy College
  • Jamie Kudler

    Veterinary Assistant

    Originally an intern from Sanford H. Calhoun High School's Senior Experience Program, Jamie was welcomed to Companions with aplomb. Jamie has always wanted to be a veterinarian, so working at Companions Animal Hospital has become a mutually beneficial situation for both her and the hospital, as her caring nature shines through her interaction with our patients.

    In her free time, Jamie enjoys photography and playing with her dog, Riley.

    Jamie's photo companion is Alex, a tabby cat that Irene, our hospital manager, rescued after he had been given up due to unfortunate circumstances. He might be a bit feisty at times, but at the end of the day Alex loves nothing more than a nice belly rub.
    Nassau Community College
  • Tessa Saccone

    Veterinary Assistant

    Tessa became a part of our staff at Companions in the summer of 2011 and has since then become an excellent veterinary assistant. A current student at FIT, Tessa studies intimate apparel design. Her interest in and love for companion animals creates a sense of familiarity with the animals that come through our doors, helping to provide a sense of security and affection here. Tessa enjoys both caring for and riding horses. When kittens go up for adoption here at Companions, Tessa is the one who cares for and fosters them, making her a very important part of our hospital.
    Fashion Institute of Technology
  • Debbie Salvato

    Veterinary Assistant

    Debbie joined Companions Animal Hospital as a veterinary assistant in 2010. The education field held a strong note in her heart, so Debbie left Companions for her said calling in 2011. Missing the animals and staff so much, Debbie returned as a part-timer shortly after leaving still continuing in the Education field on a full time basis.  She also owned a gardening/landscaping business for 11 years. 

    Over the course of the past four years, Debbie has helped get over 50 stray cats and kittens spayed/neutered and adopted. Debbie has a Bachelor's degree in Elementary Education from C.W. Post- LIU and has taught in Ohio and NY. She currently resides in East Meadow with her incredible feline family. 
    C.W. Post
  • "Clover"

    Mascot, Incessant Bayer, and Heartworm Survivor

    Clover was rescued by Dr. Klemenger about 4 years ago and is grateful for it every day. Clover had been diagnosed with heartworm disease, a deadly parasite that infects the heart of an animal host, spread through the bite of an infected mosquito. Heartworm disease is very severe and typical results in serious disease or even death.

    Luckily for Clover, Dr. Klemenger was able to treat her for her many symptoms (including paralysis) and rehabilitate her with her own special care. Unfortunately Clover still has problems with incontinence and must wear a diaper, which serves as an inadvertent reminder of the dangers of the disease. We at Companions recommend using some form of heartworm protection year round, as there's never a time without any risk of infection.

    If you've ever toured the hospital or even if you're just visited us at the right time, you've probably seen Clover sniffing around, trying to find some treats, or baying at another beagle or hound. Despite her troubled past she's always in high spirits and loves meeting new people and animals. Next time you're in, ask to meet her!
    Treats, Walks