Our caring and compassionate veterinary care team!

Meet the Veterinarians & Team of North Laurel Animal Hospital in Laurel! We’re pleased to provide exceptional vet care for your pets!

Please call us at 301-953-7387 to speak to one of our caring veterinary staff members!

Bob Cohn D.V.M.
President and Head Veterinarian

I grew up in Long Island, NY and attended Franklin Pierce College in Rindge, NH where I graduated in 1975 with a Bachelor of Science in Biology. I then studied veterinary medicine at Araneta University in Manilla, Phillipines. I graduated in May of 1979 and then began working at a surgical referral practice in New York, Flushing Animal hospital. I relocated to Maryland in 1981 when I met my wife Robin. Shortly after, we opened the North Laurel Animal Hospital.

I feel it is important to meet the highest standards of performance and practice of the industry. Accordingly, I am a member of the American Veterinary Medical Association (AVMA), the American Animal Hospital Association (AAHA), the Eastern Veterinary Orthopedic Society (EVOS), the Veterinary Orthopedic Society (VOS) and the Maryland Veterinary Medical Association (MVMA). I have also been a managing Board Member of the Emergency Veterinary Clinic in Catonsville, Maryland since 1990. I was in the first group of 50 veterinarians trained in the world for Penn H.I.P Certification. This diagnostic tool will indicate your dog’s susceptibility to hip dysplasia.

My family has many animals at our home I care for our dogs (Sullivan and Stella) while my wife looks after the birds, turtles, lizards and many other animals we live with.

In my spare time I enjoy exercising, golfing, ice hockey and spending time with my wife Robin and my son Andrew. I previously coached my son’s hockey teams, however, he is no longer playing so we both keep active in hockey by volunteering with Special Hockey Washington, a group dedicated to helping physically and mentally challenged people to play hockey.

Dr. Russo

Dr. Mark Russo began his carrier in veterinary medicine when he was in eighth grade and volunteered at a veterinary clinic outside Pittsburgh, PA (His hometown). He wanted to get a better understanding of the profession and see if it is what he really wanted to do with the rest of his life. Then, while completing his undergraduate degree at Texas A&M University, he volunteered at a mixed practice veterinary clinic for 2 semesters and was hired on as a technician for 4 more semesters. After undergraduate, while living in Napa, California, Dr. Russo volunteered at The Marine Mammal Center, in Sausalito, California, for 6.5 years. While there he got to rescue, rehabilitate and release seals, sea lions, sea otters, whales, and dolphins. He then went back to Texas A&M University for a Master Degree in Wildlife and Fisheries Sciences within the Marine Mammal Diving Physiology Department. Dr. Russo attended veterinary school at the Atlantic Veterinary College at the University of Prince Edward Island, Prince Edward Island, Canada. While in his senior year of vet school Dr. Russo completed three externships. One in acupuncture n Oakland, CA, another in wildlife medicine at the Lindsay Wildlife Rehabilitation Hospital and a third one in Zoological medicine at the San Francisco Zoo.

Dr. Russo lives with his wife, Marie, 12 year old daughter, Kyleigh, their dog (Beagle/ Golden Retriever/ Australian shepherd mix) named Patches, 2 cats named Cutie Sparkles and Hershey, and a variety offish. In his free time Dr. Russo likes to partake in woodworking, skiing, kite boarding, windsurfing, sailing, scuba diving, and hot air ballooning. Currently Dr. Russo is looking for a 1956 Ford F100 Big Window pickup truck and/or a late 50’s/early 60’s VW 23 Window Microbus Deluxe to fix up as a new project.

Andrew Cohn

I grew up in Burtonsville, MD and I started walking dogs here at the North Laurel Animal Hospital when I was 12 years old. I played hockey for 12 years and was recruited to play at NCAA Division III Suffolk University in Boston, MA. I graduated from Suffolk Cum Laude with a degree in Entrepreneurship in 2008. I decided to join the North Laurel Animal Hospital team in order to work alongside my father, Dr. Bob, and help him grow his business. I have taken on the role of Hospital Administrator in hopes of applying the concepts I learned in school and to make daily life at the hospital even more pleasant and smooth flowing. We have two dogs, Petie (Pitbull) and Shorty (Chow-Burnese mix) and a multitude of birds, turtles, lizards and other exotic animals cared for by my mother, Robin. We are an animal family in every sense of the word!

Outside of the office, I enjoy spending time with friends,stock trading and competitive power lifting. I am a state record holder in the Men’s Drug Tested 198 pound and 220 pound classes in Maryland.

I graduated form Hofstra University with a Masters degree in Business and Finance. I am now the Chief financial Officer at NLAH and President of Liberty Holdings group based in New York City.

Niv Winston

I have been with North Laurel Animal Hospital since 2004 providing bookkeeping services. I have worked in the accounting field for fifteen years. I received my Associates degree in Business Administration from Montgomery Community College in 2002 and my Bachelor’s Degree in Accounting from UMUC in 2008 . I am actively pursuing my Master’s degree in Accounting at University of Maryland University College. I pride myself on my honesty and high level of work ethic.

I am married and am a full-time mother to my two daughters Taylor and Bobbi and son Popcorn (two year old, Maltese). In my free time, I enjoy working on home improvements, cooking and watching movies.

Loretta Prince
Veterinary Technician

Loretta has over 15 years as a Veterinary Technician and experience in specialty practice and Surgery.

She has 2 dogs Oscar and Tuco.

In her free time she enjoys mixed martial arts.

Tina Whittington
Veterinary Technician

Tina Has been a Veterinary Technician for 25 plus years and with NLAH since 2015. Tina has 3 young children and the expected cats and dogs along with a ferret, rabbit and a flock of chickens.

She loves getting to know all of our patients and owners and has a special interest in puppies and kittens and helping them get off to a great healthy start.

Mindy Willis
Veterinary Technician

Mindy Has been a Veterinary Technician since 2002 and spent several years working in specialized medicine.

She has been a member of NLAH since April 2016, Mindy and her husband have 2 dogs, Penny and Oliver and 3 cats, Nose, Bam & Bitsy

Erica Smallwood
Veterinary Technician

Erica has been working in emergency medicine for the last four years and joined NLAH in September 2018.

She is currently enrolled in college for her Associated degree so she can complete her Veterinary Technician Certification.

She has 3 dogs who love to go hiking with her in her free time.

Veterinary Technician

Ashley came on board with NLAH in the beginning of 2018, moving from the sunny state of Florida for a change of scenery. She grew up with working dogs and decided early on that she would devote herself to providing care to those who provide us with unconditional love.

Ashley has two four legged children, Aiden is a 7 year old German Shepherd, and Simon is an eight year old all black DSH. Ashley enjoys binge watching shows on Netflix with her fur babies and hiking when not hard at work.

April Jackson

April Has been with North Laurel since November 2013, Her time in the animal industry started back in the fall of 2008 after working in Hawaii on the Pride Of Aloha cruise ship, her passion for animals goes back much further.

She has been the proud pet parent of Many Dogs, Cats, Gerbils, guinea pigs,
hamsters, fish and more.

Client relations and customer service is her specialty. And enjoys the interaction between the pet parent and furry companions.

In her spare time she is kept busy with her daughter, Melaina, together they enjoy playing at the park, Participating in Girl Scout activities, drawing, reading and playing with all of their pets.

Katie Gage

Nicole Muñoz
Kennel Tech

Nicole Has been at North Laurel since 2017. She is a huge animal lover and can’t imagine being anywhere but NLAH.

When Nicole is not working at NLAH she enjoys her two Yorkshire Terriers, Annabelle and Phoebe and spending time with her Family and Friends.

Nicole enjoys other hobbies like baking, reading and arts and crafts, music and much more.

Cindy Ernst

Cindy joined the North Laurel Animal Hospital team in December 2009 as our groomer.

She has been working with animals since 1995 starting as a Veterinary Technician and Kennel Manager, She began grooming in 1996 and felt instantly she found her calling.

She has a passion for working with animals and found a place that has become her second family at NLAH.

When Cindy is making her clients beautiful she lives at home with her husband and son Jax, 2 Rescued Pit Bull Terriers, 5 cats and a small flock of chickens.

She enjoys her free time on the water, boating, jet skies and kayaking, along with a passion for riding dirt bikes and four wheelers.

Joey Hightower, Jr
Veterinary Technician


Joey has been part of the North Laurel Team since 2010. Joey has two boxer and three cats, two of which he adopted from our hospital.

In my free time I enjoy watching tv, eating new food items and hanging out with my pets.