Meet Our Team

Our Doctors

Dr. Tracey Maione, DVM

Medical Director, Oz Animal Hospital
Chicago Veterinary Medical Foundation

Dr. Maione's Bio

Dr. Tracey Maione hails from the University of Illinois earning both her Bachelor’s degree of pre-veterinary science and her doctorate of Veterinary Medicine in Urbana-Champaign.  She grew up in Chicago and the near north suburbs, but has claimed the north side of Chicago as her beloved home base for the last 9 years.  Dr. Maione has had 9 years of clinical experience in 3 veterinary practices before transitioning to her recent ownership and medical directorship of Oz Animal Hospital.  One practice was the University of Illinois’ teaching hospital and referral center which tasked her with training future graduates in the field on the most progressive medical practices while working side by side with boarded specialists in internal medicine, behavior, oncology, rehabilitation, and surgery, to afford her patients the latest and best the field has to offer.  She brings her passions of medical care that is thorough and holistic in approach, up to date, and affordable for the families of her furry patients.

She is well known in Chicago for her outreach efforts in encouraging and mentoring youths of all ages to pursue a career in veterinary medicine.  Dr. Maione also believes in public education and outreach and routinely gives educational seminars on various health topics from community events, to radio shows, blogs, journals and television.

Dr. Maione is an active member of the Chicago Veterinary Medical Association because she believes in supporting the profession on the bigger picture levels such as local politics and legislation that involves animals, animal welfare issues facing the Chicago-land area, and enhancing public understanding of the value of veterinarians to their communities.  She is also a member of the American Veterinary Medical AssociationIllinois State Veterinary Medical Association, and the American Animal Hospital Association.

At home with the help of her loving husband Paul, she takes care of 3 dogs: A rambunctious 3-legged Boxer named Ramona, a suspect Pit Bull/Shar-Pei or Chow mix named Loza, and smokey grey and sometimes moody minature poodle named Fredo. Outside of the field her favorite hobby is international travel.

Dr. Ana Valbuena, DVM

Associate Veterinarian
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Dr. Valbuena's Bio

Dr. Ana Valbuena is a recent graduate and new Chicago resident. She received her Bachelor’s in Biological Sciences from Florida International University and left the sunshine state to pursue her doctorate of Veterinary Medicine from the University of Illinois in Urbana-Champaign.

Having been born in Cuba and spending years in Nicaragua before moving to Florida, Dr. Valbuena is no stranger to new environments and change. She understands that veterinary visits can prove to be stressful for not only our furry companions but their human counterparts, as well. Dr. Valbuena is passionate about the human-animal bond and wishes to enhance it through good preventative medicine and comprehensive medical care, working together with pet parents to achieve the best quality of life and least stress for all involved.

In her spare time, Dr. Valbuena enjoys hand embroidering and spending time with her partner, Diego, and their two cats, Ziggy and Weasley.


La Dra. Ana Valbuena es recién graduada y una nueva residente de Chicago. Recibió su Bachillerato en Ciencias Biológicas atraves de la Universidad Internacional de Florida y dejó el estado de la Florida para continuar su doctorado en Medicina Veterinaria atraves de la Universidad de Illinois en Urbana-Champaign.

Habiendo nacido en Cuba y pasado años en Nicaragua antes de mudarse a la Florida, la Dra. Valbuena no es ajena a los nuevos ambientes y al cambio. Ella entiende que las visitas veterinarias pueden resultar estresantes no solo para nuestras mascotas, sino también para sus padres. La Dra. Valbuena es apasionada por la conexion humana-animal y desea mejorarla a través de medicina preventiva y atención médica integral, trabajando junto con los padres de mascotas para lograr una mejor calidad de vida y menos estrés para todos los involucrados.

En su tiempo libre, la Dra. Valbuena disfruta bordar a mano y pasar tiempo con su pareja, Diego, y sus dos gatos, Ziggy y Weasley.

Dr. Leah Katz, DVM

Associate Veterinarian
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Dr. Katz' Bio

Dr. Katz has lived in the Lincoln Park neighborhood of Chicago since 2003, working as a small animal veterinarian, doing what she truly considers to be her dream job. She is a graduate of both Michigan State College of Veterinary Medicine, receiving a Doctorate of Veterinary Medicine, and the University of Michigan, receiving a Bachelor of Science with a major in Psychology. Dr. Katz believes that every pet deserves caring, insightful, and thorough veterinary care; which involves working as a team with pet parents to pursue the best options for the individual needs of their pet. She also feels it is important that a visit to her office be stress free, and utilizes techniques that create a calming and welcoming experience for her patients. Over the past years, along with establishing a diverse and loyal client base, she has also worked with pre-veterinary students as a mentor devoted to helping others who have a calling to pursue a career in the field. In addition, she has worked with several animal rescue organizations bringing unwell pets back to health, facilitating their adoption into forever homes.

Her time away from work is spent with her husband Jim, their hound dog mix Stewie, and extended family. In the summer months she enjoys trying to grow a decent vegetable garden, and planning vacations to exotic locations.

Dr. Alexandra Pinhasi, DVM

Associate Veterinarian
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Dr. Pinhasi's Bio

Bio coming soon.

Dr. Tracy Garza, DVM

Associate Veterinarian
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Dr. Garza's Bio

Bio coming soon.

Management Team


General Practice Manager

Paul's Bio

Paul Maione, Practice Manager, has been in the Customer Service Industry for 29 years, but his favorite stint by far has been working at Oz for the last 1.5 years.

He finds himself thoroughly engaged with the staff and rewarded by witnessing patients and clients receiving the highest level of care. Paul’s dog Fredo, aka “Oscar The Grouch”, insists on accompanying him daily to work. Besides his passion for working at Oz he loves spending time with his wife Dr. Tracey Hlede, and weekend golf outings with his friends and family.


Practice Manager
Sam's Bio
Sam has been in the veterinary field for 15 years. Throughout her career, she has been able to work in many different fields of veterinary medicine including exotics, wildlife, and dentistry. She loves all aspects of working with animals but has a soft spot for seniors. To her, one of the most rewarding things about working with animals is being an advocate for them and their owners to be able to give them the best possible care. By doing this she has been able to build great bonds with families.

Sam shares her household with her husband, 3 boys and 3 dogs – Fiona, Marlee, and Boo. When she’s not at sports events she enjoys baking, traveling, attending dog events and exploring the city- especially around the holidays!


Assistant Practice Manager

Shelby's Bio

Prior to moving to Chicago in 2019, Shelby was born and raised in a small town in Minnesota. Her educational background is in Sales and Marketing, while her prior career experience is primarily in human medicine. She entered the veterinary world upon her move to Chicago and fell in love with the relationship to patients and owners alike.

In Shelby’s free time you can find her buying produce for Franklin, her pet turtle, playing with her cat Squeaks, or cooking for her and her partner.

Veterinary Technicians & Assistants


Team Leader Veterinary Technician
Yirald's Bio
Yirald has lived in Chicago his whole life and worked as a Technician for 8 years before coming to Oz. He has had many dogs during his life, including 2 now named Taco and Chirpy, plus a cat named Morgan.

On his free days he loves to watch standup comedy, play sports, travel with friends, and watch tons of movies.


Veterinary Technician, CVT

Nina's Bio
Nina has been a Certified Veterinary Technician since 2011. She is originally from Detroit. Nina worked at a feline-only specialty hospital here in Chicago for the past ten years and is typically known as a cat whisperer. She also has 2.5 years of experience as a surgical scrub nurse for a veterinary neurology practice. She has a passion for all senior animals and shares a special bond with cranky old cats. She shares her home with two boy cats, Winston and Woody, and when she’s not working she enjoys both relaxing at home and doing anything outside (when the weather is nice!


Veterinary Technician, CVT
Marley's Bio
Marley is a Certified Veterinary Technician (CVT) and graduated from the Vet Tech Institute at Fox College with an Associate’s Degree. She was a Cosmetologist for several years before making the decision in 2017 to switch to the veterinary field in search of a career that would bring her a sense of fulfillment and purpose. Since she was a little girl, she has always had a deep love and empathy for all animals and has found the purpose she was looking for as a CVT providing quality animal care. Her career change has been the best decision she’s ever made!

In her free time, she enjoys drawing, reading books/comics, going for walks, and is an avid moviegoer with her partner Adam. They also have 2 cat kids named Drake & Bowie, and a basset named Sully, who bring them endless amounts of love and joy!


Veterinary Technician, CVT
Carley's Bio
Carley has wanted to work in the Veterinary field ever since she was a little girl. She graduated from a Veterinary Technician program in August of 2019 and will be taking the VTNE to become certified in March 2020. She is from the Northwest suburbs of Chicago and will be moving into the city at the beginning of March!

Carley has 2 cats, Meow Meow & Frankie, and a dog named Sadie. Her hobbies include hanging out with friends & family, going to concerts, running, playing PC games, and watching movies.


Veterinary Assistant

Stephanie's Bio
Bio coming soon!
Client Care Coordinators


Team Leader – Client Care Coordinator

Fiona's Bio

Fiona was born and raised in Evanston but has been happy to call Chicago home for the past 5 years. She’s had a passion for the veterinary industry from a young age, from both a household full of pets and an uncle who is a Veterinarian.

In Fiona’s free time you can find her reading or baking. She and her partner have quite a few critters; Boots the cat, Ramblin’ Rose the turtle, Bosco the ball python, and Tajin the bearded dragon.


Client Care Coordinator

Rolando's Bio
Rolando was born and raised here in Chicago. He has worked in the vet world for 18 years now as a receptionist, kennel assistant, and technician. He typically does receptionist and technician work at the hospitals he has worked at and really enjoys doing both. He doesn’t currently have any pets of his own, but his family has a dog (Zeus Shih Tzu) and a cat (Raven DSH black) that he helps take care of.

In his free time, Rolando enjoys going to the movies, playing video games, and going to the museums here in Chicago. He has a pretty big family here in Chicago and really enjoys spending time with them & going out with his amazing friends.


Client Care Coordinator

Kimberli's Bio
Kimberli is originally from Michigan, but she has spent the last 15 years living in lovely Chicago. She has worked at a variety of interesting places in the city, like Steppenwolf Theatre Company, the Goodman Theatre, and The Anti-Cruelty Society, as well as a variety of veterinary clinics. She is happy to begin her third year at Oz Animal Hospital.

In her spare time, Kimberli runs a cat retirement home in her small apartment with three residents: Bert (12), Vinnie (14), and Mishka (15). She also volunteers with Precious Pets Almost Home, a foster-based rescue for cats.


Client Care Coordinator
Colleen's Bio

Colleen has called Chicago home since 2004. After completing her BA at Columbia College Chicago, she enrolled in the Veterinary Assistant Program at Animal Behavior College and has been a part of the veterinary industry since 2011. Her work as a kennel assistant, receptionist, and veterinary technician has allowed her to accumulate a well-rounded experience. No matter the position, her favorite aspect of this profession is being a source of support for patients and owners alike.

At home, Colleen spends time with her husband, daughter, and two black cats Gotham and Harvey Grayson. Her spare time is occupied by family and crafts.


Client Care Coordinator
Jessie's Bio

Jessie has been in the Veterinary world for almost 2 years and never plans on leaving. She is working towards getting certified as a Veterinary Technician. She has a passion for animals and has volunteered at almost all of the animal shelters in Chicago since she was 18 years old.

Jessie was a nanny for 10 years but always wanted a career working with animals. She has owned all types of pets including reptiles, bunnies, and dogs. She is currently the Mom of 4 furry dogs – a Chihuahua, Frenchie, Pomeranian, and a Yorkie. In her spare time, Jessie loves to travel, and when not in Chicago you can find her in Miami, Florida.


Client Care Coordinator
Xaviera's Bio
Xaviera was born and raised in Chicago and grew up in the Logan Square neighborhood. During her junior year of high school, she did her history fair project on the Anti-Cruelty Society and it’s what influenced her desire to help animals. She went on to volunteer at multiple rescue organizations.

Xaviera graduated from the School of the Art Institute-Chicago with a bachelor’s in visual design & illustration and sometimes paints pet portraits for friends.

During her spare time, she loves seeing live music in the city with her husband. In the summertime, she can be found on her porch in Roscoe Village reading musician biographies with her two rescue cats Marge and Fry by her side.

Veterinary Specialists

Dr. Katy S. King, DC

Doctor of Chiropractic
Dr. King's Bio
Dr. Katie King attended undergraduate classes at the University of Illinois where she learned about the human body, chemistry, physiology, and other general health topics. She left the University of Illinois with a Bachelor of Science degree. She continued her education by enrolling in the doctorate program at Logan College of Chiropractic where she was introduced to further strenuous coursework in the basic sciences, human diagnostics, clinical sciences, and chiropractic practice. Dr. Katie excelled in all of her national board certification examinations for chiropractic and physical therapy. She took a postgraduate course in Acupuncture and received her certification in Acupuncture. Dr. Katie received her Doctor of Chiropractic degree upon her completion of her coursework at Logan College of Chiropractic.

During school, Dr. Katie King was very active in extracurricular events, weekend classes, post-graduate classes, and additional training. She joined several groups to help gain a working knowledge and experience so that she can offer premium care to her patients. To further her qualifications, she served those groups as club officers.

Dr. Katie has been awarded academic achievement recognitions by the Dean of Academics several times including the “Post Doctorate Education” award and the “Clinical Excellence” award. She has also earned several other awards which recognized her academic excellence and dedication to the profession.

Amy Blum, CPDT-KSA

Certified Professional Dog Trainer
Amy's Bio
Amy Blum is a Certified Professional Dog Trainer (CPDT-KSA), a professional member of the Association of Professional Dog Trainers, and an active member of the Certification Council for Professional Dog Trainers Certification Exam Committee. Amy is also certified in Dr. Sophia Yin’s Low-Stress Handling techniques. Amy has been working with animals for over 20 years and she’s been providing professional pet training and behavioral consulting services in Chicago for more than a decade.

Amy has a BA in psychology with a biology minor from UIC. Her academic background includes research and teaching assistantships in behavioral neuroscience, and she was awarded special honors for independent research in animal behavior. She has completed highly regarded animal training internships at the Animal Behavior Center in New York and the Shedd Aquarium in Chicago.

She continues her professional development by regularly attending seminars and workshops to stay up-to-date with current research in the field and by participating in respected professional organizations. Amy provides her clients with effective, practical training and behavior solutions to help them successfully navigate “real life” with their dogs. She uses only scientifically sound, dog-friendly training methods that empower dogs to be active and enthusiastic participants in their own training and care.

We have two locations for your convenience!

Lincoln Park

620 W. Webster Ave.
Chicago, IL 60614

Phone: 773-327-5024 (Call or Text)
Fax: 773-348-9867

Mon: 9 AM – 6 PM
Tue: 9 AM – 6 PM
Wed: 9 AM – 6 PM
Thu: 9 AM – 6 PM
Fri: 8 AM – 6 PM
Sat: 9 AM – 3 PM
Sun: Closed

Rogers Park

7001 N. Glenwood Ave.
Chicago, IL 60626

Phone: 773-327-5024 (Call or Text)
Fax: 312-873-4451

Mon: 9 AM – 6 PM
Tue: 9 AM – 6 PM
Wed: 9 AM – 6 PM
Thu: Closed
Fri: 9 AM – 6 PM
Sat: 9 AM – 3 PM
Sun: Closed

We look forward to seeing you soon!

Request an appointment online by clicking the button below.