Northside Veterinary Clinic Staff

Northside Veterinary Clinic
offers the best in both complementary and standard treatments for the health and wellbeing of animals,
and opens the door for a positive relationship between caretakers and their pets.

Dr. Daniel Leiman, DVM, along with Dr. Barbara Eisner, is the founder and owner of the Northside Veterinary Clinic. Although he grew up in Elmont NY with dogs and cats as beloved family pets, Dr. Leiman did not develop a passion to be a veterinarian until his undergraduate years at Duke University.
After graduating Summa Cum Laude from Duke, Dr. Leiman was admitted to the Cornell College of Veterinary Medicine. He graduated Cornell Vet School with honors in 1981.
After working in Amish country in Bloomsburg, PA for 2 years at a mixed animal practice, Dr. Leiman returned to NYC, where he did a 2 year internship at the Henry Bergh Memorial Hospital. After working at the Queens Veterinary Emergency Clinic and other small animal practices for a few years, Dr. Leiman began his own housecall practice. The housecall practice grew so quickly that Dr. Leiman needed to set up a place where people could come to see him as well. With his wife, Dr. Barbara Eisner, the Northside Veterinary Clinic was founded in 1997 at 233 Berry Street. Although Dr. Leiman still makes housecalls, the majority of his time is spent practicing medicine, surgery and dentistry at Northside.
Outside of work, Dr. Leiman enjoys playing racquetball, playing bagpipes, rooting for the Yankees and keeping his pitbull on a short leash.

Dr. Barbara Eisner, DVM CVA, graduated college as a chemist and worked both for Lever Brothers and General Foods for a number of years before applying to vet school. It was no surprise that she gave up chemistry to become a veterinarian as helping animals had always been her true passion.
Dr. Eisner graduated from the University of Pisa, Italy
and worked for other vets before forming
the Northside Veterinary Clinic with her husband, Dr. Daniel Leiman.
She obtained certification in Veterinary Acupuncture from the International Veterinary Acupuncture Society in 1998 and is a member of the American Academy of Veterinary Acupuncture. Dr Eisner did much of her equine acupuncture internship at Belmont Race track and her small animal internship with International Veterinary Acupuncture Society instructors.
She also trained in Chinese Herbal Medicine at Tufts University and has taken numerous courses in Chinese and Western Herbal Medicine. Dr. Eisner likes to ride horses and practices martial arts in her spare time.

Dr. Eric Mondschein, DVM grew up in Miami Beach, Florida.
He attended undergraduate school at the University of Florida where he received a Bachelor of Science in animal science as well as wildlife ecology and conservation. Dr. Mondschein received his Doctorate of Veterinary Medicine from Tufts University College of Veterinary Medicine in 2007. He also received a Master in Public Health from Tufts University College of Medicine. Dr. Mondschein’s interests include emergency and critical medicine, public health, and emergency preparedness for animals.
He currently practices veterinary medicine in New York City where he lives with his wife, Wendy, and orange cat, George.

Agnieszka Medina Sanchez, Veterinary Technician, graduated from the August Cieszkowski Memorial Poznan Agricultural University at Poznan, Poland in 2004, with Master's and Engineer degrees in Animal Science and Animal Breeding.
Agnieszka came from Poland and before coming to the United States she worked as a veterinary technician with large animals for four years. Recently, Agnieszka graduated from Cedar Valley College with A.S. degree in Veterinary Technology.
Her professional interests include Surgery, Dentistry, Radiology, and Emergency Medicine.
In her free time she enjoys good books, movies, cooking, and a very long walks around NYC with her husband.

Ginger Altneu is one of the Veterinary Assistants/Techs at Northside. She has experience working in the veterinary field ranging from general practice, emergency medicine, holistic medicine and has worked for an orthopedic surgeon. She can often be found on the phone discussing lab results or answering questions about your furry friend.
When she's not at the clinic Ginger enjoys adventurous cooking, spending time outdoors with her family, playing with "Kitty Boom" her cat or Boxing at the gym.

Diana Viteri, Technician, is our special "cat whisperer". Her touch seems to calm down even the most agitated felines. ( We are convinced that Diana was a cat in a past life).
In this life, she is a veterinary assistant at Northside, having one year to go in the Mercy College Vet Tech Program.Diana has an associates degree in Liberal Arts from BMCC and an B. S. in business management from Dowling College.
She has done lots of cat rescues and has worked hard to find homes for all of them. She was a volunteer and a veterinary assistant for years at the North Shore Animal League as well as other animal hospitals.
She brings a wealth of experience to Northside Veterinary Clinic and we are lucky to have her on board. Diana speaks Spanish fluently, shoots pool and practices Ninjitsu in her spare time.
When she is not nurturing a sick kitty back to health, you can find Diana having a cookie on her break time.

Northside Veterinary Clinic, 233 Berry Street, Brooklyn, NY 11211 (718) 387-0541 info@northsideveterinaryclinic.com
Our Email is checked every evening please call if you need immediate information.
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