Our Providers

Dr. Yaohan "Adrienne" Lam

Yaohan "Adrienne" Lam


Growing up locally in Norman, Oklahoma, Dr. Adrienne Lam attended Norman High School. She then completed four years at Cornell University in Ithaca, NY, graduating with a Bachelor of Arts in Biology. During this time, she explored her interest in science and became committed to her future in the study of medicine. In 2010, she received her Doctor of Medicine from the University of Oklahoma College of Medicine in Oklahoma City, Oklahoma where she was selected to the prestigious Alpha Omega Alpha honor society. While in medical school, Dr. Lam participated in the student-run dermatology free clinic, annual melanoma screening events, and the Sun Protection Education Projects visiting local area elementary schools. She also served as the vice-president of the dermatology interest group at the university.

Dr. Lam completed her internship year of internal medicine at the University of Oklahoma Health Sciences Center in Oklahoma City, Oklahoma. She then joined the Department of Dermatology at the University of Oklahoma where she received comprehensive training in general and medical dermatology, dermatologic surgery, dermatopathology, pediatric dermatology and cosmetic dermatology. During her final year of residency she served as chief dermatology resident, completing her residency program in June 2014. After graduation from residency, Dr. Lam completed the American Board of Dermatology examination to become a Board-Certified Dermatologist. She also became a local dermatologist in Oklahoma City/Moore by starting a private practice – Lam Dermatology.

Dr. Lam has been published in various medical journals, including the Journal of the American Academy of Dermatology. She is a member of the Dermatology Foundation, the American Academy of Dermatology, the American Society for Dermatologic Surgery, and the Oklahoma State Dermatology Society. Her clinical interests include prevention/detection of skin cancers, dermatologic manifestations of systemic disease, medical dermatology, connective tissue diseases, pediatric dermatology, dermatologic surgery, treatment of disorders of skin of color, cosmetic procedures, lasers, preventative medicine, and patient education.

When she is not practicing dermatology, Dr. Lam enjoys spending time with her husband and three children, teaching, reading, cooking, and traveling.

Dr. Joshua Weingartner

Joshua Weingartner


Joshua Weingartner is a thorough and compassionate dermatologist serving the community of Norman, Moore, Oklahoma City, and surrounding areas. Dr. Weingartner attended the University of Oklahoma where he received his medical degree and completed his residency in dermatology. He is a Fellow of the American Academy and is a Board Certified Dermatologist by the American Board of Dermatology. Dr. Weingartner’s medical career is colored by many outstanding contributions to medicine, including several publications, research, and scientific presentations. Patients see Dr. Weingartner for a variety of reasons, including acne, eczema, psoriasis, skin cancer, and many other skin conditions. He takes a thorough and precise approach to his consultations to ensure that he is consistently giving accurate diagnoses.

Outside of his practice, he enjoys spending time with his wife and three children, cheering on his OU Sooners and Oklahoma City Thunder, and playing recreational sports.

Dr. Paul Atakpo

Paul Atakpo

As a medical student, Dr. Atakpo was a part of the Vassar research team, participating in dermatology research and publications. His academic achievements and service to the community led to his selection to Sigma Sigma Phi honor society. Dr. Atakpo completed his dermatology training at Virginia Commonwealth University Health System in Richmond, Virginia where he received rigorous instruction in general, pediatric, surgical, cosmetic, and complex dermatology. In his final year of residency, he served as chief dermatology resident and he now provides dermatologic care for his patients in Edmond and its surrounding areas.

Outside of dermatology, Dr. Atakpo enjoys spending time with his family and church community, going to the lake, traveling, hiking, and watching OU football and OKC Thunder basketball.

PA Madison Kearney

Madison Kearney

Madison Kearney grew up in Chapel Hill, North Carolina, where she later attended college at the University of North Carolina and received her Bachelor degrees in Biology and Psychology in 2017. Madison‘s passion for dermatology started early in her career as she worked for several years as a medical assistant in dermatology after graduation. She eventually went back to school at Campbell University to obtain her Master of Physician Assistant Practice degree. She is now happy to be back working in the profession she loves and helping patients address a variety of dermatological concerns. 

In her free time, Madison enjoys traveling, trying new restaurants, taking dance classes, and spending time with friends and family.
PA Nhung Pham

Nhung Pham

In 2016, Nhung attended Oklahoma University of Health Sciences Center and obtained her Masters of Health Science. Her passion to help others and improve quality of life is what motivated her to become a physician associate. She has experience in family medicine and urgent care. 

In her free time, she enjoys cooking and traveling with her husband.

PA Vy "Ivy" Tran

Vy "Ivy" Tran

Ivy Tran was born and raised in Oklahoma City. She graduated from Putnam City High School in 2004. Afterwards, she attended the University of Oklahoma and graduated from the University
of Oklahoma-Health Sciences Center with a Bachelor of Science in Nutritional Sciences. After working a few years as a dietician consultant in both rehabilitation and long-term acute care facilities, she decided to go back to school to pursue a master’s degree. Ivy was accepted in the Physician Associate Program at the University of Oklahoma and was involved in several campus organizations including Leadership HSC, Oklahoma Academy of Physician Assistants, American Academy of Physician Assistants, and Bridges to Access. Ivy graduated from the PA Program in 2014 and shortly after, got married and moved to San Jose, California to work in the emergency department at Regional Medical Center of San Jose, as well as a family medicine clinic for a little over a year. Ivy’s eventual goal was to move back to Oklahoma City to be near her family and friends. Dermatology has always been an interest for Ivy and she accepted a position at Lam Dermatology in 2016.

When Ivy is not working, she enjoys trying out new restaurants, cooking, hanging out with family and friends, watching romantic comedies, and working out.