Peace Love Pets Veterinary Care, PLLC is proud to serve Commack, NY and surrounding areas. We are dedicated to providing the highest level of veterinary medicine along with friendly, compassionate service.

We believe in treating every patient as if they were our own pet, and giving them the same loving attention and care. We are a group of highly trained, experienced animal lovers who are devoted to giving our patients the best care possible.

If you have any questions about how we can care for your pet, please don’t hesitate to call us at (631) 499-3300. Thank you!

Our Team

Dr. Diane Monsein Levitan

The founder, Dr. Diane Monsein Levitan has over 20 years of veterinary medical experience. She has received worldwide recognition as founder and first owner of the Center for Specialized Veterinary Care and The Compassionate Care Center, the world’s first veterinary referral hospital to allow human owners to stay with their pets overnight. Founded in 2002, the Centers represented Dr. Levitan’s vision to build a model hospital that would encompass all aspects of advanced veterinary medicine, including 24-hour emergency care as well as address the intellectual and emotional needs of pet owners. After selling the Center, Dr. Levitan began Helping Promote Animal Welfare, Inc (Helping PAW)- a 501 (c)(3) tax exempt public charity. Helping PAW is dedicated to ending pet overpopulation through education of the public and by providing high volume, high quality, targeted, affordable sterilization services of unowned and companion animals and to subsidize care for animals whose owners are on government assistance. After 2 years without client patient relationships, Dr. Levitan decided it was time to practice full service medicine again, and in June of 2010, she purchased American Animal Hospital and transformed it into what it is now, Peace Love Pets Veterinary Care.

An accomplished Doctor of Veterinary Medicine, Dr. Levitan’s expertise spans all aspects of veterinary internal medicine. A board certified specialist in small animal internal medicine, she has also performed clinical research; lectured and taught courses in ultrasound, endoscopy and laparoscopy; published in veterinary textbooks and journals; and serves as a consultant for many businesses. Recently, Dr. Levitan has been sharing her expertise around the globe by offering volunteer spay/neuter and veterinary services in remote areas of the Dominican Republic and Bahamas. She is one of a team of international veterinary internal medicine consultants for Antech Diagnostics, a veterinary diagnostic laboratory.

Dr. Levitan is a member of the Nassau County Medical Reserve Corps, the American College of Hyperbaric Medicine, Fair Media Council and many other organizations that allow her to add to her profession and her community. She was the Chief Medical Officer of PetWatch, Inc. and currently acts as a veterinary medicine and business consultant as well as a media veterinarian. She has been appointed to the Board for Veterinary Medicine by the New York State Board of Regents. She is a member of the American Society of Veterinary Journalists and a member of the Veterinary News Network; is an advisor and contributor of educational video segments to, a contributor to ThePetStyleBlogSpot as well as Newsday’s Long Island Parent’s and Children’s, Elements and Boulevard magazines and NBC’s

Dr. Levitan is co-host of’s The Pet Doctor and is a frequent guest on Day Break USA syndicated radio as well as many other radio and television shows.

Dr. Levitan’s centers have been featured nationally and internationally on Fox News and NBC Nightly News, The Today Show and several others. She is known as the expert media veterinarian in this region and is proud to continue to present news, perform interviews and be interviewed in a responsible manner in the best interest of people and their pets. For examples, see our in the news section of this web site.

Dr. Levitan graduated Phi Beta Kappa and with high honors from the University of Michigan and earned her veterinary degree at the University Of Pennsylvania School Of Veterinary Medicine, also with honors. She has received accolades from many organizations such as the Society for the Prevention of Cruelty to Animals, New York State Veterinary Medical Society, University of Pennsylvania Alumni Award, voted Woman of Distinction by Distinction Magazine and was inducted into the Hall of Fame as a third time honoree as one of the 50 Most Influential Women on Long Island, by Newsday’s Long Island Business News.

Dr. Levitan loves working in Commack and feels especially fulfilled every day by being able to help so many animals and their people! Providing the care, attention and expertise that animals and their families need and deserve is the most rewarding privilege any veterinarian can hope for!

Dr. Bari-Sue Glaser

Dr. Bari-Sue Glaser is excited to join the team at Peace Love Pets and continue to practice the highest quality compassionate veterinary care. A Long Island native, Dr. Glaser has over 20 years of practice experience.

After graduation from Huntington High School, Dr. Glaser earned a B.S. degree, Magna Cum Laude, in Animal Science from the University of Connecticut and received her DVM degree from Cornell University. After starting her career in small animal medicine and surgery at a general practice in Naugatuck, Connecticut, she returned home to Long Island where she worked at a small animal general practice in Huntington for over 15 years.

Dr. Glaser has made community health and well care a focus of her passion. She has extensive experience in all aspects of small animal medicine, dentistry and surgery with a special interest in correcting behavioral issues and strengthening the lifelong bond between people and their pets. She has been especially devoted to the care of rescued racing greyhounds over the years as well as pets from many other rescue organizations.

Dr. Glaser is an accomplished equestrian having competed at the highest levels. She carries her passion for athletic competition to running road races. She is a devoted mother, wife and pet parent to her two dogs, Bernie and Zoe.

Dr. Glaser is very excited to bring her many years of experience in general practice and wellness care to Peace Love Pets and looks forward to working with Dr. Levitan, Dr. Anderson and Dr. Infernuso to offer the highest quality compassionate care to all of your pets.

Jennifer Baillie, DVM

Jennifer Baillie is a native New Yorker that grew up on the south shore of Long Island. She completed her undergraduate degree at Stony Brook University and pursued her dream career studying on the sandy shores of Saint Kitts and Nevis, at the accredited Ross University. During her stay on “de Island” she was an active member of their feral cat TNR program, and helped care for the exotic animals at the town’s local Zoo. She even spent time in Central America to provide free veterinary care and sterilization to much needed families.

She completed her clinical year at Louisiana State University, and acquired quite the palate for southern cooking. During one her elective externships she met Dr. Levitan, owner of the wonderful Peace Love Pets veterinary practice, and fell in love with the compassion and quality of medicine practiced there. After graduation, she joined their team for a brief stent before heading into New York City for a year internship at the prestigious BluePearl Veterinary Partners Emergency and Specialty center. There she immersed herself in emergency medicine and worked alongside multiple veterinary specialists to sharpen her technical skills and learn cutting edge treatment options. Upon completion she was honored to be offered a full time position with Dr. Levitan and her team, continuing her mentorship with great and knowledgeable colleagues.

On her off time, Jennifer is an enthusiastic baker and cook, often times using it as a stress reducer. She also is a member of Helping PAW, where you will find her spaying and neutering feral cats at the town of North Hempstead shelter.

Dr. Tomas Infernuso

Dr. Infernuso has become an invaluable member of our staff, offering state of the art surgical expertise and compassion in an intimate environment. You no longer need to go to a large referral center for the expertise your pet deserves. We can provide it here, thanks to our expert surgeon, Dr. Infernuso.

He specializes in:

  • Orthopedics
  • Soft Tissue Surgeries
  • Arthroscopy, Laparoscopy, Thoracoscopy
  • Spinal Surgery

Tomas Infernuso, DVM attended the University of Naples, Fredrick II School of Veterinary Medicine and after receiving a one-year scholarship to the University of Madrid, Spain, graduated from the Las Palmas University, Spain, School of Veterinary Medicine.

Dr. Infernuso moved to the United States where he continued his studies at Cornell University. After a comprehensive one-year internship in small animal medicine and surgery at the Animal Medical Center in New York City, Dr. Infernuso completed the surgical residency requirements for certification in the American College of Veterinary Surgeons in 2010 at Long Island Veterinary Specialists in New York.

Dr. Infernuso is currently engaged in minimally invasive surgeries. Dr. Infernuso is fluent in 3 languages, English, Spanish and Italian. He enjoys all aspects of surgery with special interests in endoscopy, arthroscopy and all non-invasive procedures.

I strive to provide the highest quality of advanced surgical care by strictly adhering to accepted standards for the treatment of animals. As a result, I, along with local veterinary hospitals, am able to give pets the absolute best veterinary care.

As a member of your family, your pet deserves nothing less than the best care available. My commitment to having the most advanced technology is unrivaled. My priority, however, lies with giving you and your family all the support you need – through communication, care and compassion.

I am highly trained and experienced in providing prompt and intensive management of patients with life-threatening conditions and those requiring extraordinary supportive care.

My multi-disciplinary approach and close cooperation allows me to offer the best care available to the patients entrusted to me.
I am committed to using science, technology and compassion to provide exceptional care for pets and their families.

My caseload encompasses patients with a wide range of orthopedic, neurologic, oncologic (cancer), thoracic, and soft tissue problems. I am available for surgery, consultation, assistance with difficult surgical cases, or when the use of specialized surgical equipment or techniques is required. My combined effort allows me to confer on patient management, to be readily available for trauma or other emergency referrals, and to further expand our own surgical subspecialties.

My practice is equipped with the latest specialized instrumentation and equipment. The safest anesthetic agents are used, and patients are continuously monitored throughout anesthesia. Experienced, registered veterinary technicians and a well-trained technical support staff play a key role in perioperative intensive care.

Your pet deserves exceptional care.

Dr. Terry Eylers