Medical Staff

Lauren Marchefka

Board Certified Family Nurse Practitioner

Lauren is a Board-Certified Family Nurse Practitioner with a clinical focus on anti-aging, aesthetic, and regenerative medicine. She graduated with honors in developmental psychology and biology from the University of Michigan, Ann Arbor in 2009. After working in genetic research, Lauren attended Duke University School of Nursing for her bachelor’s degree. She worked in the intensive care unit as a nurse while finishing her master’s degree in family practice. After graduation she became a member of Sigma Theta Tau, the international honor society for nursing.

During her time at Duke she became passionate about addressing all aspects of a patient’s health including emotionally and physically. She attended numerous trainings to learn how to combine conventional medicine with complementary practices to design custom treatment plans unique for each individual. Lauren specializes in platelet rich plasma (PRP) injections, stem cell therapy, aesthetic procedures, pain management, hormone therapy, and nutrition. She feels very blessed to have this opportunity to make a difference in patients’ lives.

Aleksandr Filen - Physician Assistant

Physician Assistant

Aleksandr has been a part of Integrated Pain Specialists since 2016. He is fluent in English, Swedish, and Russian. He is a graduate of Western University of Health Sciences Physician Assistant Program, class of 2015. Aleksandr’s interest and passion for medicine came at an early age, and lead him to pursue a pre-medical curriculum during his undergraduate years at UC Santa Barbara.

With a course load ranging from Biopsychology and Research Methods to Neuroscience and Physics, Aleksandr received a broad yet definitive start to his PA career. During his Physician Assistant studies, Aleksandr completed several rotations in Family Medicine, Neurology, Dermatology, and General Surgery.

After graduation, Aleksandr moved to San Diego to be with his fiancée and start his new life away from his home in the San Fernando Valley. During his free time, Aleksandr enjoys spending time exploring new places to eat, live music, and San Diego Gulls Hockey games.