Quality care you can trust

experienced doctors with a
passion for healing

Meet our team

our doctors

  • Katrina E Woodhall, M.D. Diplomate, American Board of Dermatology

    A California native, Dr. Katrina E Woodhall is a board-certified dermatologist and fellowship-trained dermatologic cosmetic surgeon. Dr. Woodhall earned a Bachelor of Science degree with honors from University California Riverside and studied medicine and dermatology at Loma Linda University Medical School where she served as chief resident and graduated top of her class in 2007.

  • Nagi K. Saied, M.D.
    Nagi K. Saied, M.D. Diplomate, American Board of Dermatology

    “My budding interest in dermatology started as I would look at the 6000-year-old mummies at the Cairo museum in Cairo. I was impressed that cultures throughout antiquity valued the skin not only as a superfluous cover but as an organ of significant political, ethnic, and even spiritual significance. Cultural taboos and stigmas were ubiquitous in viewing skin blemishes even the everyday semantics was quick to bless or curse depending on the skin pigment. The medieval undertones of leprosy and any banal skin color changes were indistinguishable”

  • Sree Karukonda, MD, PhD Diplomate, American Board of Dermatology

    “I was drawn to dermatology because it blends art and science of medicine, surgery, health, and beauty. Over the past 20 years, I took care of many skin conditions including skin cancer in different ethnicities and all age groups. I believe in educating and partnering with my patients to help them in  improving their skin conditions. I also have a passion for cosmetic dermatology and enjoy enhancing appearance of skin through advanced cosmetic procedures”.

  • Leon E. Schwartz, M.D.
    Leon E. Schwartz, M.D. Diplomate, American Board of Dermatology

    As a dermatologist for the past 43 years, Dr. Schwartz knowledge and strong background in Medical dermatology helps him diagnose and treat patients with conditions both common and rare. He greatly enjoys interaction with patients of all ages and from all walks of life. His goal is always to treat each patient with respect and care for their concerns and looks forward to working with all patients at Pacific Dermatology Institute.



  • Bradley P. Mudge, M.D. Diplomate, American Board of Plastic Surgery

    “I have the enjoyment of coming to work each day knowing patients have placed their trust and confidence in me to assist in their overall well being. My patients and I connect on a level where they can truly be honest with me, and the relationship we form allows me to properly diagnose and treat each patient individually. I encourage patients to ask questions, raise concerns or clarify conditions and treatment plans, which ensures that each patient receives the best option for their care.”


  • Vincent R. Fowler, M.D. Diplomate, American Board of Dermatology

    Vincent R. Fowler, M.D., recognizes that the practice of dermatology is not only a science, it is an art form. “We are all concerned about how our bodies’ largest organ looks and feels, and that it stays healthy. I enjoy trying to find the best treatment with the best outcome. Medicine, lasers, surgery – they make skin care a combination of art and science. With this in mind, Dr. Fowler uses his extensive knowledge and skill to give patients the best care possible.

  • John J. Guagenti, MD
    John J. Guagenti, MD Dermatologist, Board Eligible
  • JESSICA ST. JULES MSPAS PA-C Physician Assistant in Dermatology

    “My passion for dermatology developed when I previously practiced medicine in the fields of Rheumatology and Primary care. I took keen interest in the visual inspection of physical diagnosis; identifying and describing what I seen came naturally. I recognize the importance of health promotion and disease prevention in the field of skin care, and the significant impact dermatological health has on systemic health.”

  • Anette Lecair P.A.-C Society of Dermatology Physician Assistants

    “As a person who enjoys outdoor sports and the water, I am very conscious of the power of the sun’s relationship to skin cancer and sun damage to the skin. I believe sun protection is vital to the prevention of skin cancer and many other skin conditions. My job is to help my patients find a balance between sun enjoyment and sun damage.”

  • Christen Buirley PA-C

    “Having worked in family practice for 7 years, I finally found my passion in dermatology, being fair skinned and getting multiple sunburns as a child I realize now how valuable it is to protect the skin. I’m a strong advocate for education and prevention and my goal is always to help improve my patient’s quality of life. The visual and surgical aspects of dermatology allow me to use my skills to treat patients of all ages here at Pacific Dermatology”

  • Ray Lin, M.S., P.A.-C Physician Assistant in Dermatology

    “Dermatology is an exciting field that integrates procedures, surgery, oncology, cosmetics, and pathology. It is a field that treats people as a whole from head to toe. The problems can be seen on the surface which affects people physically and mentally. I find it very gratifying being able to apply proper treatments and visually see improvement from different skin conditions.”

  • Britney Kaufman P.A.-C Physician Assistant in Dermatology

    After having been exposed to a number of different medical fields, I quickly learned that although every organ system is vital to our overall function as human beings, it is skin that has one of the most profound impacts on our self-esteem, confidence and love of oneself. To be able to take on a role where I have the ability to not only help the way and individual is feeling but also how one thinks of themselves is truly amazing.

  • John Nicolaisen PA-C
    John Nicolaisen PA-C Physician Assistant in Dermatolology
  • Tiffiny Pizzifred, NP
    Tiffiny Pizzifred, NP Nurse Practitioner in Dermatology

    After providing patient care as a registered nurse for 25 years, I decided that I wanted to have the ability to do more for my patients. Thus I went back to school to obtain my Masters degree in Nursing at CBU to become a Family Nurse Practitioner. After working in family practice, I chose to specialize in dermatology. I enjoy diagnosing and treating various skin ailments, and have a passion for working closely with patients to improve their health through education and prevention. I have lived here in the Inland Empire all of my life, and it is my pleasure to serve those of all ages here in my community.

  • Jennifer Knappe PA-C
    Jennifer Knappe PA-C Physician Assistant in Dermatology

    “I have maintained a passion for cutaneous disease throughout my medical education. Our skin is the largest organ of our bodies and its maintenance has significant impact on both our physical and emotional well being. I am so grateful to have the opportunity to help others not only improve their overall health, but their confidence and perception of self.”

  • Krystalee Krey, PA-C
    Krystalee Krey, PA-C Physician Assistant in Dermatology
  • Laura Wooley PA-C Physician Assistant in Dermatology

    Laura became a board-certified Physician Assistant after completing her Master’s degree in Physician Assistant studies at Loma Linda University. Throughout her education and career, Laura was drawn to the medical and surgical aspects of dermatology. She enjoys the opportunity to care for patients of all ages, with their variety of skin ailments, while combining her skills of primary care and surgery. Outside the office, Laura enjoys exploring the outdoors from dirt-bike riding, cycling, hiking, and learning to surf Southern California’s waves.

  • Felice Puppe Medical Esthetician

    As a professional makeup artist for over ten years I became more interested in what goes in the skin, rather then what goes on the skin.

  • Natalie Henderson RN, BS
    Natalie Henderson RN, BS Registered Nurse

    “When it comes to the skin I know that results matter, my passion for skin care is driven by providing honest, compassionate care to each of my patients, while maintaining the standards of excellence in each procedure I perform. Having the trust of my patients to enhance or change the appearance of their skin is truly a privilege that will always be honored in the care I provide”

  • Christy St. Marie, RN
    Christy St. Marie, RN Registered Nurse

Leadership Team

Jeff Bottomley

Chief Operating Officer

Rich Rotan

Chief Development Officer

Natalie DeRose

Director Of Operations

Sandra Carmichael

Director Of Human Resources

Emergency Call

In case of urgent, feel free to ask questions.