Hidradenitis suppurativa specialists Los Angeles
Our doctors

Dr. Yosef Nasseri
Colorectal

Dr. Moshe Barnajian
Colorectal

Dr. Jason Cohen
General & Oncologic

Dr. Joshua Ellenhorn
General & Oncologic

Dr. Elizabeth Arena
General & Oncologic
At the Hidradenitis Institute, our multidisciplinary team of doctors collaborates closely to provide comprehensive and personalized care for individuals living with Hidradenitis Suppurativa. Each doctor brings a highly specialized skill set, allowing us to address various aspects of the condition.

Colorectal Surgeon
Dr. Nasseri
Yosef Nasseri, MD, FACS, FASCRS, is a highly skilled double board-certified surgeon in general and colorectal surgery. He is known nationally in treatment of various benign and malignant conditions affecting the colon, rectum, anus and surrounding skin. Dr. Nasseri is one of the few national experts in treatment of the chronic and debilitating skin condition known as Hidradenitis Suppurativa (HS). He often uses the highly regenerative technology of the Myriad extracellular matrix in helping achieve faster and more cosmetic outcomes in surgical treatment of HS. Dr. Nasseri is highly published and holds prominent committee leadership in several national surgical societies.

Colorectal Surgeon
Dr. Barnajian
Moshe Barnajian, MD, FACRS, is a highly regarded board-certified colorectal and general surgeon, dedicated to delivering comprehensive and compassionate care. Dr. Barnajian possesses advanced expertise in all aspects of colon, rectal, and anal surgery. Notably, he ranks among the select few national authorities in managing Hidradenitis Suppurativa, a persistent and incapacitating skin condition. He uses the advanced regenerative technology offered by the Myriad extracellular matrix to facilitate swifter and aesthetically favorable results in the surgical management of Hidradenitis Suppurativa. His diligent, thoughtful, and efficient approach ensures the highest level of care for his patients.

General & Oncologic Surgeon
Dr. Cohen
Dr. Cohen is a renowned surgical oncologist and general surgeon, serving as the founder and managing partner of the esteemed Surgery Group of LA. Renowned for his specialization in head and neck endocrine surgery, Dr. Cohen’s influence extends remarkably to being a preeminent expert in the surgical treatment of the thyroid and parathyroid glands. Dr. Cohen’s distinction as a wound care expert is especially notable, reflecting his commitment to staying at the forefront of medical progress. His dedication translates into a patient-centered approach that prioritizes techniques, designed to minimize scarring, optimize treatment outcomes and expedite the recovery process. With a compassionate commitment to comprehensive patient care, Dr. Cohen’s expertise ensures the highest quality treatment, fostering both physical healing and renewed well-being

General & Oncologic Surgeon
Dr. Ellenhorn
Joshua D.I. Ellenhorn, MD, FACS, is a distinguished general surgeon and surgical oncologist, specializing in innovative treatments for benign and malignant conditions including those of the skin and tissues underneath the skin. Dr. Ellenhorn has been at the forefront of pioneering Approaches to benign and malignant conditions.. As a highly accomplished educator and clinical researcher, he has received repeated national recognition for his exceptional expertise in surgery.

General & Oncologic Surgeon
Dr. Arena
Dr. Elizabeth Arena is a highly esteemed double board-certified surgical oncologist and general surgeon, specializing in caring for patients with benign or malignant breast diseases. As the director of the Breast Center at SGLA, she offers a unique, individualized treatment plan utilizing minimally invasive, oncoplastic techniques, such as breast-preserving lumpectomies with hidden scars and nipple-sparing mastectomies with immediate reconstruction. Her pioneering expertise as one of the first American Board Certified Surgical Oncologists makes her a leading breast surgeon in the greater Los Angeles area.
Schedule a Consultation
If you or a loved one is seeking specialized care for Hidradenitis Suppurativa, we invite you to schedule a consultation with our team of experienced doctors. Together, we can work towards managing your condition effectively and improving your overall well-being.