Meet the Providers

Doctors On Call offers friendly expert care whether you're a resident or a visitor. With a full medical team, we provide fast, effective treatment for injuries and illnesses. We also offer a variety of medical and preventive care services to help you get through whatever today might bring.
  • Dr. Norman Estin Physician

    Dr. Norman Estin

    Dr. Estin is the founder and medical director of Doctors On Call since 1987.
    - Urgent Care
    - Emergency Medicine
    - Travel Medicine
    - Sports Medicine
    - Diving Medicine

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  • Dr. David Adams Physician

    Dr. David Adams

    Dr. Adams was born and raised in Iowa and has lived in Maui since 2002 with his wife and two children. Dr. Adam's is board certified in family medicine.
    - Urgent Care
    - Family Medicine

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  • Dr. Kari Adams Physician

    Dr. Kari Adams

    Dr. Kari Adams grew up in the Midwest and has lived on Maui since 2002 with her husband and two children. She is board certified in family medicine.
    - Urgent Care
    - Family Medicine

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  • Dr. Spencer Chun Physician

    Dr. Spencer Chun

    Dr. Spencer Chun grew up on Oahu, and graduated from Punahou School. He now lives in Maui with his with his wife and three children. He is board certified in family medicine.
    - Urgent Care
    - Family Medicine

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  • Martha ‘Mel’ Lindsey Physician Assistant

    Martha ‘Mel’ Lindsey

    She is a certified Physician Assistant (PA-C) who received her undergraduate degree from Cal State Long Beach in Physical Education with a certificate in Athletic Training in 1984.

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  • Rachel Vigliotti Physician Assistant

    Rachel Vigliotti

    is a certified Physician Assistant (PA-C) who received her Masters in Physician Assistant studies at Pacific University.

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  • Shannon Richards Nurse Practitioner

    Shannon Richards

    Shannon Richards, MSN, RN, FNP-BC, is a Family Nurse Practitioner, with Doctors On Call, with locations in West Maui.

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  • Stefanie Roberts Nurse Practitioner

    Stefanie Roberts

    Stefanie is a Nurse Practitioner who obtained a BSN from the University of Iowa College and then received a Family Nurse Practitioner degree from Clarkson College in 2013. 

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  • Paige Williams Managing Director

    Paige Williams

    Paige Williams joined Doctors On Call as the Managing Director in 2013. Paige is a certified practice manager as well as a medical biller, and lives in Hawaii with her daughter.

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