Meet Our Staff


All our professionals at Dermatology Associates of Berkeley maintain the highest level of accreditation and regularly pursue ongoing education to stay abreast of the latest trends in dermatology.




Cornelia M. Pessoa, M.D. has been practicing dermatology in the San Francisco Bay Area since 1989 and is known for her expertise in surgical, medical and cosmetic dermatology. She received her Doctorate of Medicine degree in 1981 from George Washington University School of Medicine and Health Sciences in Washington, D.C. The following year, she completed an internship in internal medicine at Letterman Hospital in San Francisco. She completed her residency in dermatology at Walter Reed Medical Center in Washington, D.C. and received her board certification in dermatology in 1987.

Dr. Pessoa is known for her extensive knowledge of medical dermatology and her compassionate care of patients. In addition, Dr. Pessoa has over 25 years experience in surgical dermatology, focusing on surgery of skin malignancies, which are performed in office. Dr. Pessoa also has extensive experience in cosmetic dermatology, focusing on treatments such as fillers (Juvederm®, Belotero®, Restalyne®, etc), Botox® and the use of the IPL laser. The emphasis is on enhancing the patients appearance by correcting aspects of the aging process.  Her goal in treatment is for a youthful, natural result. 

Dr. Pessoa is a member of several medical societies including:

  • Fellow of the American Academy of Dermatology
  • Member of the California Society of Dermatology and Dermatologic Surgery
  • Member of the Pacific Dermatology Association

Dr. Pessoa was voted as best Skin Doctor in the East Bay Express in 2011.  

Read about Dr. Pessoa in the news →



Adrianna Browne, M.D.

Dr. Adrianna Browne is a board certified Dermatologist who completed both her medical school and residency at Johns Hopkins University School ofMedicine. She is a proficient medical, skin cancer, cosmetic and surgical Dermatologist. Also Dr. Browne is one of the few dermatologists to train through the Johns Hopkins Ethnic Skin Program. Additionally, Dr. Browne completed a Clinical Hair Research Fellowship at the University of California San Francisco (UCSF) with Dr. Vera Price.

Following her fellowship at UCSF, Dr. Browne joined Advanced Dermatology and Skin Care in Houston, TX. She received advanced training in cosmetic procedures including injectables such as Botox™, Belotero®, Restylane®, Perlane®, Radiesse®, Juvederm®, Voluma®, and Sculptura®. Dr. Browne also completed a one-year fellowship at the National Institutes of Health as a Howard Hughes Medical Institute (HHMI) Research Scholar.

  • Fellow of the American Academy of Dermatology
  • Member of the San Francisco Dermatological Society
  • Member of the Skin of Color Society

Helen Chodsky, PA-C 

Helen Chodsky, PA-C is a certified dermatological physician assistant who has been practicing in the San Francisco Bay Area since 2003 and has the reputation of providing high quality care to her patients. Prior to her training as a physician assistant, Helen was a practicing dermatologist in Russia. She graduated magna cum laude and is a member of Pi Alpha National Honor Society: Recognition of Outstanding Physician Assistants.

Ms. Chodsky is experienced in both medical and cosmetic dermatology, as well as having additional surgical certification and experience. She practices all aspects of medical dermatology, including diagnosis, treatment, and minor surgery. She also works with HIV patients treating lipodystrophy with Sculptra and Radiesse.  She performs a wide range of cosmetic procedures, including Botox™, and fillers (Restylane®, Perlane®, Juvéderm®, Belotero®, and Voluma®), as well as laser treatments and sclerotherapy for spider veins. Her professional associations include:

  • Fellow of the Society of Dermatology Physician Assistants
  • Fellow of the California Academy of Physician Assistants
  • Member of the San Francisco Bay Area Physician Assistants


Star-Shine Cheng

Office Manager

Mrs. Cheng has been working at Dermatology Associates of Berkeley for over 20 years.  She is a certified medical assistant and in the past 16 years has worked as the office manager.  She has extensive expertise in medical billing and also works as our liaison with insurance companies.

She is happy to answer any questions you might have about insurance coverage and billing.