Meet Our Specialists

Surgery

Todd Tobias, DVM, MS, Diplomate ACVS

Dr. Todd Tobias is a 1987 graduate from the New York State College of Veterinary Medicine at Cornell University, a 1988 graduate of the small animal rotating internship program at Auburn University, and a 1991 graduate from the surgical residency program at The Ohio State University. He was an assistant professor and chief of small animal surgery at Mississippi State University from 1992-97, where his clinical service included soft tissue, reconstructive, orthopedic, and neurologic surgery. His research interests include canine total hip replacement, elbow dysplasia, and cardiovascular shock.

He has lectured internationally with the Association for the Study of Internal Fixation. He also lectured as a member of the ASIF course faculty at The Ohio State University, and has co-lectured for Ohio and Mississippi State’s Total Hip Replacement workshops. He has been a Diplomate of the American College of Veterinary Surgeons since 1994.

Dr. Tobias is the founder, co-owner, and president of Memphis Veterinary Specialists, LLC, which has its primary office in Cordova, TN, and a secondary office in Little Rock, AR. Dr. Tobias is also the chief medical officer and managing member of PetMed Emergency Center, LLC, which has its primary office in Cordova, TN, and a secondary office in Midtown Memphis, TN. He is also an adjunct professor of veterinary surgery at Mississippi State University—College of Veterinary Medicine.

Mac Maxwell, DVM, MS, Diplomate ACVS

Dr. Maxwell graduated in 2004 from the Mississippi State University College of Veterinary Medicine. After graduation, he finished a small animal rotating internship at Colorado State University. Upon completion of the internship, he returned to Mississippi State University for a three-year surgical residency, which he completed in 2008.

Dr. Maxwell remained at Mississippi State University as an assistant professor of small animal surgery, and is now a Diplomate of the American College of Veterinary Surgeons. His research interests include minimally invasive percutaneous osteosynthesis, locking plate biomechanics, and fracture healing.

Dr. Maxwell and his wife, Christy, both hail from Jackson, MS. They have two young children. Mac is an avid hunter, fisherman, and outdoorsman.

Chase Atwood, DVM, MS, Diplomate ACVS

Dr. Chase Atwood was born and raised in Vicksburg, MS. He attended Mississippi State University, where he received his undergraduate degree in wildlife with pre-veterinary emphasis in 2006. He then attended Mississippi State’s College of Veterinary Medicine, where he graduated in 2010. Dr. Atwood completed both a small animal rotating internship and a three-year surgical residency at MVS and is now a Diplomate of the American College of Veterinary Surgeons. His hobbies and interests include hunting, fishing, golf, and Mississippi State football.

Internal Medicine

Robert McDonald, DVM, Diplomate ACVIM

Dr. Robert McDonald is a native of Philadelphia, MS. He received his DVM degree from Auburn University in 1980. After graduation, he practiced in Columbus, GA. before attending the University of Tennessee to complete a small animal medicine residency in 1984. He then joined the faculty at Mississippi State University where he worked for 8 years as a small animal clinician rising to associate professor in 1990. Dr. McDonald received Board Certification in ACVIM in 1989. In 1993, he joined Starkville Veterinary Hospital where he worked as both a general and referral practitioner for 5 years. He also operated an internal medicine/dermatology referral service in Memphis, TN, Jackson, MS, and Springfield, MO. In 1998, Dr. McDonald was employed by Antech Diagnostics as a small animal internal medicine consultant where he worked for 18 years. His areas of interest are tick-borne infectious disease and endocrinology.

Oncology

Lorin Hillman, DVM, Diplomate ACVIM

Dr. Lorin Hillman is a 2003 graduate of the Auburn University College of Veterinary Medicine. Following graduation, she completed an internship at Kansas State University in small animal medicine and surgery. She started a three-year medical oncology residency at the University of Illinois in July of 2004. During her residency, Dr. Hillman participated in research projects and clinical trials for canine osteosarcoma, canine mast cell disease, and feline oral squamous cell carcinoma. After completing her residency in July of 2007, she returned home to Memphis and joined MVS the following August. Dr. Hillman is board certified by the American College of Veterinary Internal Medicine (ACVIM) in the specialty of oncology. She is the only board-certified oncologist in the area including western Tennessee, Arkansas, and Mississippi.

Dr. Hillman has extensive training in all areas of cancer treatment and is available to consult with you about the best treatment plan for your pet. The most important aspect of cancer treatment is maintaining a good quality of life. The oncology team at Memphis Veterinary Specialists works together to help you and your pet through all phases of cancer treatment.

Dermatology

Tina Brown, DVM, MS, Diplomate ACVD

Dr. Tina Brown grew up on a commercial dairy farm near Tuscaloosa, AL. She attended Auburn University and received her Bachelor of Science in 1996. She then pursued a graduate degree at the College of Veterinary Medicine and received her Master of Science degree in biomedical sciences with a research focus on endocrinology. She was accepted into the veterinary program and received her Doctor of Veterinary Medicine from Auburn University in 2004.

Following veterinary school, Dr. Brown worked in private practice in Chattanooga, TN, where she developed a special interest in dermatology. She returned to academia and completed a one-year rotating internship in companion medicine and surgery at Louisiana State University. She was accepted for a residency in dermatology at LSU and completed her training in 2008. During her residency, she conducted research in the Pythium Laboratory at LSU and continues to have a special interest in deep fungal and bacterial infections of the skin.

Dr. Brown is now a board-certified dermatologist and a Diplomate of the American College of Veterinary Dermatology (ACVD). She specializes in diseases of the skin, ears, and claws due to allergic, parasitic, autoimmune, endocrine, and infectious causes. She has extensive experience in the management of chronic skin and ear infections secondary to allergies and offers advanced diagnostics and treatments such as intradermal (skin) allergy testing and formulation of allergen specific immunotherapy.

Dr. Brown has four rescue dogs and two cats. In her spare time, she enjoys visiting her family farm in Alabama and taking her dogs to the outback off leash park at Shelby Farms.

Dentistry

Barden Greenfield, DVM, Diplomate AVDC

Dr. Barden Greenfield has been providing referral-based dental and oral surgery services to the Mid-South veterinary community for over 10 years. He is a Diplomate of the American Veterinary Dental College and was the first board-certified veterinary dentist to have dental practices in Tennessee and Arkansas, which serve patients in the Mid-South region.

His love for veterinary dentistry began when he studied that 7 of 10 dogs and cats over 3 years of age have some form of periodontal disease, and that these pets were extremely uncomfortable and were suffering in silence. Watching pets transform from pain to joy is what makes his job such a rewarding one. The overwhelming owner response after oral treatment by Dr. Greenfield has been, “We haven’t seen our pet this frisky or happy in a long time.”

Dr. Greenfield is also on the Board of Directors of the AVDC serving as president-elect and has honorably served on the Board of the American Veterinary Dental Society (AVDS) and the Foundation for Veterinary Dentistry. He has lectured on the local, state, national, and international level on a variety of veterinary dental topics.

Dr. Greenfield spends most of his home life with his wife and children while also enjoying a peaceful round of golf.

Diagnostic Imaging

Jenny Miller, DVM, MS, Diplomate ACVR

Dr. Jenny Miller is a 2007 graduate of Mississippi State University College of Veterinary Medicine.  Following graduation, she completed an internship at Mississippi State in diagnostic imaging.  Upon completion of her internship, Dr. Miller joined a general practice for several years.  She then returned to Mississippi State University to pursue a residency in diagnostic imaging.  During her residency, she also earned a Master’s Degree in Veterinary Clinical Science. Her research focus was on computed tomography of the hepatobiliary system.

Dr. Miller has extensive training in radiographic and fluoroscopic interpretation, abdominal and cardiac ultrasound, ultrasound-guided techniques, computed tomography (CT), and magnetic resonance imaging (MRI).  Although she enjoys all imaging modalities, she has a particular interest in ultrasound and CT.

Dr. Miller grew up in Collierville, TN.  She and her husband Nick currently reside in East Memphis and have a particularly cool orange tabby named Rufus.  She is an avid Mississippi State fan and loves football and tailgating season.  She also enjoys traveling and cooking.

Ophthalmology

Jane Ashley Huey, DVM, MS, Diplomate ACVO

Dr. Huey grew up right across the Mississippi river in Clarkedale, AR, but has lived in many places over the last several years. She received her undergraduate degree from the University of Arkansas in Fayetteville. Then, she attended Auburn University College of Veterinary Medicine to obtain her Doctorate of Veterinary Medicine. She also performed a rotating small animal internship at the University of Missouri in Columbia for one year. After that, she completed a three-year residency in ophthalmology and received her master’s in biological science from Kansas State University. After living in the Southeast and Midwest, Dr. Huey was ready for a big change, so she moved to San Diego, CA, where she practiced veterinary ophthalmology for two years.

In addition to her love of dog and cat eyes, Dr. Huey has a passion for equine ophthalmology and enjoys helping out local zoos with their exotic animals. In her spare time, she enjoys traveling with her husband, being outdoors, biking, all water sports, cooking and eating, reading, and developing a pastime of running.

Surgery

Todd Tobias, DVM, MS, Diplomate ACVS

Dr. Todd Tobias is a 1987 graduate from the New York State College of Veterinary Medicine at Cornell University, a 1988 graduate of the small animal rotating internship program at Auburn University, and a 1991 graduate from the surgical residency program at The Ohio State University. He was an assistant professor and chief of small animal surgery at Mississippi State University from 1992-97, where his clinical service included soft tissue, reconstructive, orthopedic, and neurologic surgery. His research interests include canine total hip replacement, elbow dysplasia, and cardiovascular shock.

He has lectured internationally with the Association for the Study of Internal Fixation. He also lectured as a member of the ASIF course faculty at The Ohio State University, and has co-lectured for Ohio and Mississippi State’s Total Hip Replacement workshops. He has been a Diplomate of the American College of Veterinary Surgeons since 1994.

Dr. Tobias is the founder, co-owner, and president of Memphis Veterinary Specialists, LLC, which has its primary office in Cordova, TN, and a secondary office in Little Rock, AR. Dr. Tobias is also the chief medical officer and managing member of PetMed Emergency Center, LLC, which has its primary office in Cordova, TN, and a secondary office in Midtown Memphis, TN. He is also an adjunct professor of veterinary surgery at Mississippi State University—College of Veterinary Medicine.

Mac Maxwell, DVM, MS, Diplomate ACVS

Dr. Maxwell graduated in 2004 from the Mississippi State University College of Veterinary Medicine. After graduation, he finished a small animal rotating internship at Colorado State University. Upon completion of the internship, he returned to Mississippi State University for a three-year surgical residency, which he completed in 2008.

Dr. Maxwell remained at Mississippi State University as an assistant professor of small animal surgery, and is now a Diplomate of the American College of Veterinary Surgeons. His research interests include minimally invasive percutaneous osteosynthesis, locking plate biomechanics, and fracture healing.

Dr. Maxwell and his wife, Christy, both hail from Jackson, MS. They have two young children. Mac is an avid hunter, fisherman, and outdoorsman.

Chase Atwood, DVM, MS, Diplomate ACVS

Dr. Chase Atwood was born and raised in Vicksburg, MS. He attended Mississippi State University, where he received his undergraduate degree in wildlife with pre-veterinary emphasis in 2006. He then attended Mississippi State’s College of Veterinary Medicine, where he graduated in 2010. Dr. Atwood completed both a small animal rotating internship and a three-year surgical residency at MVS and is now a Diplomate of the American College of Veterinary Surgeons. His hobbies and interests include hunting, fishing, golf, and Mississippi State football.

Internal Medicine

Robert McDonald, DVM, Diplomate ACVIM

Dr. Robert McDonald is a native of Philadelphia, MS. He received his DVM degree from Auburn University in 1980. After graduation, he practiced in Columbus, GA. before attending the University of Tennessee to complete a small animal medicine residency in 1984. He then joined the faculty at Mississippi State University where he worked for 8 years as a small animal clinician rising to associate professor in 1990. Dr. McDonald received Board Certification in ACVIM in 1989. In 1993, he joined Starkville Veterinary Hospital where he worked as both a general and referral practitioner for 5 years. He also operated an internal medicine/dermatology referral service in Memphis, TN, Jackson, MS, and Springfield, MO. In 1998, Dr. McDonald was employed by Antech Diagnostics as a small animal internal medicine consultant where he worked for 18 years. His areas of interest are tick-borne infectious disease and endocrinology.

Oncology

Lorin Hillman, DVM, Diplomate ACVIM

Dr. Lorin Hillman is a 2003 graduate of the Auburn University College of Veterinary Medicine. Following graduation, she completed an internship at Kansas State University in small animal medicine and surgery. She started a three-year medical oncology residency at the University of Illinois in July of 2004. During her residency, Dr. Hillman participated in research projects and clinical trials for canine osteosarcoma, canine mast cell disease, and feline oral squamous cell carcinoma. After completing her residency in July of 2007, she returned home to Memphis and joined MVS the following August. Dr. Hillman is board certified by the American College of Veterinary Internal Medicine (ACVIM) in the specialty of oncology. She is the only board-certified oncologist in the area including western Tennessee, Arkansas, and Mississippi.

Dr. Hillman has extensive training in all areas of cancer treatment and is available to consult with you about the best treatment plan for your pet. The most important aspect of cancer treatment is maintaining a good quality of life. The oncology team at Memphis Veterinary Specialists works together to help you and your pet through all phases of cancer treatment.

Dermatology

Tina Brown, DVM, MS, Diplomate ACVD

Dr. Tina Brown grew up on a commercial dairy farm near Tuscaloosa, AL. She attended Auburn University and received her Bachelor of Science in 1996. She then pursued a graduate degree at the College of Veterinary Medicine and received her Master of Science degree in biomedical sciences with a research focus on endocrinology. She was accepted into the veterinary program and received her Doctor of Veterinary Medicine from Auburn University in 2004.

Following veterinary school, Dr. Brown worked in private practice in Chattanooga, TN, where she developed a special interest in dermatology. She returned to academia and completed a one-year rotating internship in companion medicine and surgery at Louisiana State University. She was accepted for a residency in dermatology at LSU and completed her training in 2008. During her residency, she conducted research in the Pythium Laboratory at LSU and continues to have a special interest in deep fungal and bacterial infections of the skin.

Dr. Brown is now a board-certified dermatologist and a Diplomate of the American College of Veterinary Dermatology (ACVD). She specializes in diseases of the skin, ears, and claws due to allergic, parasitic, autoimmune, endocrine, and infectious causes. She has extensive experience in the management of chronic skin and ear infections secondary to allergies and offers advanced diagnostics and treatments such as intradermal (skin) allergy testing and formulation of allergen specific immunotherapy.

Dr. Brown has four rescue dogs and two cats. In her spare time, she enjoys visiting her family farm in Alabama and taking her dogs to the outback off leash park at Shelby Farms.

Dentistry

Barden Greenfield, DVM, Diplomate AVDC

Dr. Barden Greenfield has been providing referral-based dental and oral surgery services to the Mid-South veterinary community for over 10 years. He is a Diplomate of the American Veterinary Dental College and was the first board-certified veterinary dentist to have dental practices in Tennessee and Arkansas, which serve patients in the Mid-South region.

His love for veterinary dentistry began when he studied that 7 of 10 dogs and cats over 3 years of age have some form of periodontal disease, and that these pets were extremely uncomfortable and were suffering in silence. Watching pets transform from pain to joy is what makes his job such a rewarding one. The overwhelming owner response after oral treatment by Dr. Greenfield has been, “We haven’t seen our pet this frisky or happy in a long time.”

Dr. Greenfield is also on the Board of Directors of the AVDC serving as president-elect and has honorably served on the Board of the American Veterinary Dental Society (AVDS) and the Foundation for Veterinary Dentistry. He has lectured on the local, state, national, and international level on a variety of veterinary dental topics.

Dr. Greenfield spends most of his home life with his wife and children while also enjoying a peaceful round of golf.

Diagnostic Imaging

Jenny Miller, DVM, MS, Diplomate ACVR

Dr. Jenny Miller is a 2007 graduate of Mississippi State University College of Veterinary Medicine.  Following graduation, she completed an internship at Mississippi State in diagnostic imaging.  Upon completion of her internship, Dr. Miller joined a general practice for several years.  She then returned to Mississippi State University to pursue a residency in diagnostic imaging.  During her residency, she also earned a Master’s Degree in Veterinary Clinical Science. Her research focus was on computed tomography of the hepatobiliary system.

Dr. Miller has extensive training in radiographic and fluoroscopic interpretation, abdominal and cardiac ultrasound, ultrasound-guided techniques, computed tomography (CT), and magnetic resonance imaging (MRI).  Although she enjoys all imaging modalities, she has a particular interest in ultrasound and CT.

Dr. Miller grew up in Collierville, TN.  She and her husband Nick currently reside in East Memphis and have a particularly cool orange tabby named Rufus.  She is an avid Mississippi State fan and loves football and tailgating season.  She also enjoys traveling and cooking.

Ophthalmology

Jane Ashley Huey, DVM, MS, Diplomate ACVO

Dr. Huey grew up right across the Mississippi river in Clarkedale, AR, but has lived in many places over the last several years. She received her undergraduate degree from the University of Arkansas in Fayetteville. Then, she attended Auburn University College of Veterinary Medicine to obtain her Doctorate of Veterinary Medicine. She also performed a rotating small animal internship at the University of Missouri in Columbia for one year. After that, she completed a three-year residency in ophthalmology and received her master’s in biological science from Kansas State University. After living in the Southeast and Midwest, Dr. Huey was ready for a big change, so she moved to San Diego, CA, where she practiced veterinary ophthalmology for two years.

In addition to her love of dog and cat eyes, Dr. Huey has a passion for equine ophthalmology and enjoys helping out local zoos with their exotic animals. In her spare time, she enjoys traveling with her husband, being outdoors, biking, all water sports, cooking and eating, reading, and developing a pastime of running.

The doctors and staff at MVS saved Beau’s life, as he was handled with loving, yet specialized, care throughout his many months of recovery.