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Brendan Cassidy, MD, is an ophthalmologist who has served the Phoenix community for 26 years. He provides outstanding pediatric ophthalmology at ABC Children's Eye Specialists at all three locations in Phoenix and Mesa, Arizona.

Dr. Cassidy has extensive clinical experience in all areas of ophthalmology. His areas of expertise include retinopathy of prematurity, ptosis, orbital tumors, strabismus, and other pediatric eye conditions.

After graduating from Albany Medical College in Albany, New York, Dr. Cassidy completed his residency at New York Medical College in Valhalla, New York. He then completed a fellowship at Children’s Medical Center of Atlanta, which included training in pediatric and adolescent ophthalmology, eye muscle surgery, and oculoplastic surgery.

Dr. Cassidy holds membership in several professional organizations, including the American Academy of Ophthalmology, the American Academy of Pediatric Ophthalmology and Strabismus, the Arizona Medical Association, and the Maricopa County Medical Society.

Through his work with Healing the Children, Dr. Cassidy has made several trips to Ecuador to care for children. He has also cared for international children sponsored in Phoenix through Healing the Children’s medical inbound program.

Dr. Cassidy speaks fluent Spanish. In his leisure time, he enjoys reading, skiing, and hiking.

Dr. Rasha Barham is a distinguished pediatric ophthalmologist and retina specialist deeply committed to
delivering exceptional eye care and making a positive impact on the lives of her patients.
With a focus on pediatric ophthalmology and retinal disorders, Dr. Barham possesses expertise in
addressing a wide array of ocular conditions affecting children. Her areas of specialization include
pediatric strabismus, amblyopia, retinopathy of prematurity, nasolacrimal duct obstruction, uveitis and
other pediatric eye disorders.
Dr. Barham completed her Pediatric Ophthalmology Fellowship at the University of Texas Southwestern
Medical Center in Dallas, Texas, where she received comprehensive training from leading experts in the
field. Additionally, she pursued a Medical Retina Fellowship at the prestigious Beetham Eye Institute,
affiliated with Harvard Medical School in Boston, Massachusetts, further enhancing her proficiency in
managing complex retinal pathologies.
Having served as a Pediatric Ophthalmologist at Mercy Hospital in Springfield, Missouri, and currently
practicing at ABC Children’s Eye Specialists in Phoenix, Arizona, Dr. Barham has demonstrated a
steadfast commitment to providing outstanding clinical care to her young patients. Her dedication to
excellence and compassionate approach have earned her the trust and admiration of both patients and
colleagues alike.
Dr. Barham is actively engaged in research and has contributed to numerous peer-reviewed
publications, focusing on topics ranging from surgical outcomes in pediatric ophthalmology to
advancements in retinal imaging and treatment modalities. Her scholarly work reflects her commitment
to advancing the field and improving patient outcomes.
As a member of esteemed professional organizations such as the American Academy of Ophthalmology,
the American Association for Pediatric Ophthalmology and Strabismus, and the Association for Research
in Vision and Ophthalmology, Dr. Barham remains actively involved in the ophthalmic community.
Through her participation in these organizations, she stays up to date with the latest developments in
pediatric eye care and retina, ensuring that her patients receive the highest standard of care.
Dr. Rasha Barham's unwavering dedication to excellence, coupled with her passion for pediatric eye care
and retinal health, underscores her commitment to improving the lives of children and families through
compassionate and comprehensive ophthalmic care.

Brendan Cassidy, MD, is an ophthalmologist who has served the Phoenix community for 26 years. He provides outstanding pediatric ophthalmology at ABC Children's Eye Specialists at all three locations in Phoenix and Mesa, Arizona.

Dr. Cassidy has extensive clinical experience in all areas of ophthalmology. His areas of expertise include retinopathy of prematurity, ptosis, orbital tumors, strabismus, and other pediatric eye conditions.

After graduating from Albany Medical College in Albany, New York, Dr. Cassidy completed his residency at New York Medical College in Valhalla, New York. He then completed a fellowship at Children’s Medical Center of Atlanta, which included training in pediatric and adolescent ophthalmology, eye muscle surgery, and oculoplastic surgery.

Dr. Cassidy holds membership in several professional organizations, including the American Academy of Ophthalmology, the American Academy of Pediatric Ophthalmology and Strabismus, the Arizona Medical Association, and the Maricopa County Medical Society.

Through his work with Healing the Children, Dr. Cassidy has made several trips to Ecuador to care for children. He has also cared for international children sponsored in Phoenix through Healing the Children’s medical inbound program.

Dr. Cassidy speaks fluent Spanish. In his leisure time, he enjoys reading, skiing, and hiking.

Dustin Heringer, MD, is a board-certified oculofacial plastic and cosmetic surgeon at Arizona Ocular & Facial Plastic Surgery in Scottsdale and Peoria, Arizona. He strives to achieve the most natural-looking results through the most conservative treatment methods. 

Dr. Heringer is one of the few surgeons who is a member of the American Society of Ophthalmic Plastic and Reconstructive Surgery, the American Board of Facial and Cosmetic Surgery, and the American Board of Ophthalmology. He provides men and women with carefully tailored treatments to enhance their aesthetic appearance and boost their self-esteem. 

Dr. Heringer grew up in Bismarck, North Dakota, and graduated summa cum laude from Concordia College in Moorhead, Minnesota. Back in his home state, he earned his medical degree from the University of North Dakota. Dr. Heringer’s list of medical school honors includes: the North Dakota Medical Association Scholars Award — a prestigious award given to the top three students in the class, the Dr. Stanley J. Brumleve Award in Physiology, the McGraw-Hill Award in biochemistry, the Altru Clinic Award, and the Drs. O.W. and C.G. Johnson Award for outstanding medical student research project. 

After medical school, Dr. Heringer completed his residency training at the Oregon Health Sciences University in Portland, Oregon, where he studied ophthalmology and general surgery. During his residency, he received the distinguished Swan Research Award for his work on lentiviral gene therapy on melanoma cells. 

Following his residency, Dr. Heringer went on to complete two separate fellowships in plastic and cosmetic surgery. The first was a two-year ocular and facial plastic surgery fellowship at the Arizona Centre for Plastic Surgery, in which he focused on eyelid and facial plastic surgery. Next, Dr. Heringer completed a one-year general cosmetic surgery fellowship at Tulsa Surgical Arts in Oklahoma, in which he performed more than 1,300 cosmetic surgeries. During this time, Dr. Heringer became proficient in state-of-the-art techniques for cosmetic facial surgeries, skin rejuvenation, lasers, and injectable fillers. 

Upon completing his fellowships, Dr. Heringer served war veterans at the Southern Arizona VA Health Care System, where he performed oculofacial plastic and reconstructive surgery. He is also a clinical assistant professor at the University of Arizona in Tucson, and an avid researcher who has published multiple scientific papers and medical book chapters.

When not at work, Dr. Heringer cherishes time with his wife and children and making memories with his family.

Dustin Heringer, MD, is a board-certified oculofacial plastic and cosmetic surgeon at Arizona Ocular & Facial Plastic Surgery in Scottsdale and Peoria, Arizona. He strives to achieve the most natural-looking results through the most conservative treatment methods. 

Dr. Heringer is one of the few surgeons who is a member of the American Society of Ophthalmic Plastic and Reconstructive Surgery, the American Board of Facial and Cosmetic Surgery, and the American Board of Ophthalmology. He provides men and women with carefully tailored treatments to enhance their aesthetic appearance and boost their self-esteem. 

Dr. Heringer grew up in Bismarck, North Dakota, and graduated summa cum laude from Concordia College in Moorhead, Minnesota. Back in his home state, he earned his medical degree from the University of North Dakota. Dr. Heringer’s list of medical school honors includes: the North Dakota Medical Association Scholars Award — a prestigious award given to the top three students in the class, the Dr. Stanley J. Brumleve Award in Physiology, the McGraw-Hill Award in biochemistry, the Altru Clinic Award, and the Drs. O.W. and C.G. Johnson Award for outstanding medical student research project. 

After medical school, Dr. Heringer completed his residency training at the Oregon Health Sciences University in Portland, Oregon, where he studied ophthalmology and general surgery. During his residency, he received the distinguished Swan Research Award for his work on lentiviral gene therapy on melanoma cells. 

Following his residency, Dr. Heringer went on to complete two separate fellowships in plastic and cosmetic surgery. The first was a two-year ocular and facial plastic surgery fellowship at the Arizona Centre for Plastic Surgery, in which he focused on eyelid and facial plastic surgery. Next, Dr. Heringer completed a one-year general cosmetic surgery fellowship at Tulsa Surgical Arts in Oklahoma, in which he performed more than 1,300 cosmetic surgeries. During this time, Dr. Heringer became proficient in state-of-the-art techniques for cosmetic facial surgeries, skin rejuvenation, lasers, and injectable fillers. 

Upon completing his fellowships, Dr. Heringer served war veterans at the Southern Arizona VA Health Care System, where he performed oculofacial plastic and reconstructive surgery. He is also a clinical assistant professor at the University of Arizona in Tucson, and an avid researcher who has published multiple scientific papers and medical book chapters.

When not at work, Dr. Heringer cherishes time with his wife and children and making memories with his family.

Brendan Cassidy, MD, is an ophthalmologist who has served the Phoenix community for 26 years. He provides outstanding pediatric ophthalmology at ABC Children's Eye Specialists at all three locations in Phoenix and Mesa, Arizona.

Dr. Cassidy has extensive clinical experience in all areas of ophthalmology. His areas of expertise include retinopathy of prematurity, ptosis, orbital tumors, strabismus, and other pediatric eye conditions.

After graduating from Albany Medical College in Albany, New York, Dr. Cassidy completed his residency at New York Medical College in Valhalla, New York. He then completed a fellowship at Children’s Medical Center of Atlanta, which included training in pediatric and adolescent ophthalmology, eye muscle surgery, and oculoplastic surgery.

Dr. Cassidy holds membership in several professional organizations, including the American Academy of Ophthalmology, the American Academy of Pediatric Ophthalmology and Strabismus, the Arizona Medical Association, and the Maricopa County Medical Society.

Through his work with Healing the Children, Dr. Cassidy has made several trips to Ecuador to care for children. He has also cared for international children sponsored in Phoenix through Healing the Children’s medical inbound program.

Dr. Cassidy speaks fluent Spanish. In his leisure time, he enjoys reading, skiing, and hiking.

Brendan Cassidy, MD, is an ophthalmologist who has served the Phoenix community for 26 years. He provides outstanding pediatric ophthalmology at ABC Children's Eye Specialists at all three locations in Phoenix and Mesa, Arizona.

Dr. Cassidy has extensive clinical experience in all areas of ophthalmology. His areas of expertise include retinopathy of prematurity, ptosis, orbital tumors, strabismus, and other pediatric eye conditions.

After graduating from Albany Medical College in Albany, New York, Dr. Cassidy completed his residency at New York Medical College in Valhalla, New York. He then completed a fellowship at Children’s Medical Center of Atlanta, which included training in pediatric and adolescent ophthalmology, eye muscle surgery, and oculoplastic surgery.

Dr. Cassidy holds membership in several professional organizations, including the American Academy of Ophthalmology, the American Academy of Pediatric Ophthalmology and Strabismus, the Arizona Medical Association, and the Maricopa County Medical Society.

Through his work with Healing the Children, Dr. Cassidy has made several trips to Ecuador to care for children. He has also cared for international children sponsored in Phoenix through Healing the Children’s medical inbound program.

Dr. Cassidy speaks fluent Spanish. In his leisure time, he enjoys reading, skiing, and hiking.

I’ve always loved working with my hands. As a surgeon, I find joy in combining that interest with my medical knowledge to help people every day. I’m passionate about perfecting the details in every surgery I do, so ophthalmic facial plastic surgery is the perfect field for me. Surgery on the face and especially the eye area requires an incredibly meticulous attention to detail that I’ve honed over the last two and a half decades.

After completing a two-year fellowship in ophthalmic plastic and reconstructive surgery and facial trauma at Indiana University, I taught at specialist hospitals in Saudi Arabia for three years. There, I gained a much greater breadth of experience in the fine details of facial and eye surgery.

I now have patients come to me from all over the country—and even the world—because they want a specialist who can make their face and eyes look youthful and beautiful while ensuring that these delicate organs are not harmed. As a leader in the field, I'm proud to have been a pioneer in the cosmetic application of Botox® injections and cosmetic fillers such as Juvéderm®. I have over 28 years of experience in facial Botox injection and over 20 years of cosmetic filler injection.

My family and I moved to Arizona in 1996, and we quickly fell in love with the sunshine and desert. My wife is also a trained physician, works with me, and over the past 20 years, we’ve built a practice where everyone feels like family. We make a plan for every patient that achieves their goals, fits their unique anatomy, and meets their specific medical needs. Our patients rest assured that if they ever have any questions or issues, all they need to do is pick up the phone and we will always take care of them.

Having grown up in Hawaii, Dr. Heinz has always loved adventure. Throughout the years, some of his passions were surfing, windsurfing, sailing, mountaineering, and mountain biking. While living in the Middle East, he led many four-wheel drive expeditions to the remote areas of Saudi Arabia, Oman, and Yemen. Presently, he enjoys going mountain biking out in the desert with his seven children, and he keeps 17 bikes in his garage for all the kids and in-laws to go riding with him. He's been a surfer and paddle boarder for his entire life, since his childhood days in Hawaii. He still paddleboards regularly, participating in lots of "downwind" ocean races and enjoying paddle boarding on lakes and rivers around Phoenix.

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Education:

• Brigham Young University (1983) - Chemistry
• University of Washington (1987) - Medicine
• University of Hawaii (1988) - Internship
• University of California, Los Angeles (1991) - Ophthalmology
• Indiana University (1993) - Ophthalmic Facial Plastic Surgery

Certifications/Memberships:

• American Academy of Ophthalmology - Member
• American Society of Ophthalmic Plastic and Reconstructive Surgery - Member
• Arizona State Physician Association - Member
• American Board of Ophthalmology - Certificate
• American Society of Ophthalmic Plastic and Reconstructive Surgery - Fellow

Brendan Cassidy, MD, is an ophthalmologist who has served the Phoenix community for 26 years. He provides outstanding pediatric ophthalmology at ABC Children's Eye Specialists at all three locations in Phoenix and Mesa, Arizona.

Dr. Cassidy has extensive clinical experience in all areas of ophthalmology. His areas of expertise include retinopathy of prematurity, ptosis, orbital tumors, strabismus, and other pediatric eye conditions.

After graduating from Albany Medical College in Albany, New York, Dr. Cassidy completed his residency at New York Medical College in Valhalla, New York. He then completed a fellowship at Children’s Medical Center of Atlanta, which included training in pediatric and adolescent ophthalmology, eye muscle surgery, and oculoplastic surgery.

Dr. Cassidy holds membership in several professional organizations, including the American Academy of Ophthalmology, the American Academy of Pediatric Ophthalmology and Strabismus, the Arizona Medical Association, and the Maricopa County Medical Society.

Through his work with Healing the Children, Dr. Cassidy has made several trips to Ecuador to care for children. He has also cared for international children sponsored in Phoenix through Healing the Children’s medical inbound program.

Dr. Cassidy speaks fluent Spanish. In his leisure time, he enjoys reading, skiing, and hiking.