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Marlon DeCastro M.D.

Marlon DeCastro M.D.

(707) 303-8300
Primary Specialties
  • Family Medicine
  • Internal Medicine
  • Affiliations
    Annadel Medical Group
    Primary Office
    500 Doyle Park Drive
    303
    Santa Rosa, CA 95405
    Web Page:
    www.stjosephhealth.org

    Experience & Education

    Other Specialties/Certifications
    A.B.I.M.
    Education
    Medical Education
    University of the Philippines, M.D., Manila, Philippines

    Internship(s)
    Internship, Nassau Univ Medical Center, East Meadow, New York, United States

    Residency(s)
    Residency, Nassau Univ. Medical Center, East Meadow, New York, United States
    HMO - AETNA
    HMO - ANTHEM/BLUE CROSS
    HMO - CIGNA
    HMO - HEALTH NET
    HMO - HEALTH NET SENIORITY PLUS
    HMO - UNITED
    HMO - WESTERN HEALTH ADVANTAGE

    Physician Bio

    As an internist, Dr. DeCastro specializes in providing patient-centered care for adults of all ages. He is board certified in Internal Medicine and able to care for an individual’s specific medical needs from preventive services to the diagnosis, treatment and management of acute and chronic conditions and diseases. He is especially adept at treating individuals with diabetes.

    Dr. DeCastro received his medical degree from the University of the Philippines in Manila, and conducted an Internal Medicine residency at Nassau University Medical Center in East Meadow, New York. Most recently, Dr. DeCastro served as an attending physician at Clemson Health Center in South Carolina where he provided primary care to adults and served as lead investigator in several studies. While there, he also earned certification in the Diabetes Physician Recognition Program, presented by the National Committee for Quality Assurance.

    Areas of Interest

    Family Medicine, General Practice, Internal Medicine