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Ronald M. Mann, MD, F.A.A.D., F.A.C.M.S.

Ronald M. Mann, M.D., Medical Director and Owner of Catalina Dermatology, has over two decades of experience as a fellowship trained Mohs surgeon and a dermatologist. Certified by the American Board of Dermatology, Dr. Mann has been practicing in Tucson, Arizona since August 2003.

After graduating from the University of Pennsylvania School Of Medicine, Dr. Mann completed his internship at the Graduate Hospital of the University of Pennsylvania. He fulfilled a residency in dermatology at the University of Pittsburgh Medical Center and thereafter completed a fellowship in Mohs Surgery at the University of Louisville in Louisville, Kentucky.

In addition to being board certified, Dr. Mann is a fellow of the American College of Mohs Surgery, and a fellow of the American Academy of Dermatology, Arizona Medical Association, American Society for Dermatologic Surgery, American Society for Laser Medicine and Surgery, American Contact Dermatitis Society, and Pima County Medical Society.

Dr. Mann established his private practice in 2004. He is married to Rebecca Mann, who is his practice manager. They have two grown daughters. Dr. Mann enjoys golf and traveling.

Jessica Lester, PA-C

Jessica Lester graduated from the University of Washington and completed the Physician Assistant program at the University of California, Davis in 2019. She is certified by the National Commission on Certification of Physician Assistants and is currently working on completing the Diplomate Fellowship by the Society of Dermatology Physician Assistants. She believes in empowering her patients to be proactive participants in their skin care and make healthy choices in their everyday lives. Prior to joining Catalina Dermatology, Jessica worked in burn and reconstructive surgery.

Jessica is newly married to a resident physician at Banner and has a mini goldendoodle named Coco. She enjoys Pilates, spinning, cooking, and golfing in the sunshine with lots of sunscreen!

Steven Tebbs, PA-C

Steven Tebbs received his bachelor’s degree in Exercise Science at the University of Utah in 2016 and later completed the Physician Assistant program at Rocky Mountain University of Health Professions in 2022. Steven has a passion for dermatology and aims to provide the best quality of care and evidence-based medicine for his patients.

Steven loves spending his free time with his wife and two children. Additionally, he enjoys sports, exercising, and the outdoors.


  • Dr.
    Ronald Mann

    Ronald M. Mann, M.D., Medical Director and Owner of Catalina Dermatology, has over a decade of experience as a fellowship trained Mohs surgeon and a dermatologist. Certified by the American Board of Dermatology, Dr. Mann has been practicing in Tucson, Arizona since August 2003.

    After graduating from the University of Pennsylvania School Of Medicine, Dr. Mann completed his internship at the Graduate Hospital of the University of Pennsylvania. He fulfilled a residency in dermatology at the University of Pittsburgh Medical Center and thereafter completed a fellowship in Mohs Surgery at the University of Louisville in Louisville, Kentucky.

    In addition to being board certified, Dr. Mann is a fellow of the American College of Mohs Surgery, and a member of the American Academy of Dermatology, Arizona Medical Association, American Society for Dermatologic Surgery, and Pima County Medical Society.

    Dr. Mann established his private practice in 2004. He is married to Rebecca Mann, who is his practice manager. They have two grown daughters. Dr. Mann enjoys golf and traveling.

  • Blaine Jensen

    Blaine Jensen received his Bachelor’s degree and Physician Assistant Certification in 2003, after completing the Interservice Physician Assistant Program through the U.S. military. He went on to get his Masters of Physician Assistant Studies degree from the University of Nebraska in 2005.

    He has worked in dermatology for most of his career, including several private practices and the Veterans Hospital in Madison, Wisconsin. Blaine joined Catalina Dermatology in 2015 when he moved to Tucson.

    He maintains his license and certification through the National Commission on Certification of Physician Assistants He has special interest in skin cancer detection and treatment, as well as chronic skin conditions like psoriasis. 

    When not in the office Blaine is often found hiking the Catalinas and hitting golf balls poorly.

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