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About St. Joseph Health

SJH provides a full range of care facilities including 16 acute care hospitals, home health agencies, hospice care, outpatient services, skilled nursing facilities, community clinics and physician groups. All of our hospital and home health entities are accredited by the Joint Commission. In our award-winning facilities, SJH maintains a "continuum of care," matched to the diverse needs of the urban centers, smaller cities and rural communities who depend on us every day.

William Rivera-Ortiz, MD

  • Obstetrics and Gynecology
Additional Language Spoken
Spanish, English
Medical Groups & Affiliations
  • St. Joseph Health Medical Group
St. Joseph Health Eureka - Obstetrics and Gynecology
3200 Walford Avenue
Eureka, CA 95503
Accepting New Patients

Primary Office

St. Joseph Health Eureka - Obstetrics and Gynecology
3200 Walford Avenue
Eureka, CA 95503
Get Directions
(707) 445-3443
(707) 445-1848
Mon – Fri: 8 a.m. 5 p.m.

More Information

  • Meet The Doctor

    Specialties & Education

    Primary Specialties
    • Obstetrics and Gynecology
    Education & Training
    • Residency
      Residency in Obstetrics and Gynecology - 1979
    • Internship
      Straight Internship in Obstetrics and Gynecology - 1976
    • Medical School
      Doctor of Medicine - 1975
    • College
      Bachelor of Science in Pre-Medicine - 1970
  • Biography



    William Rivera-Ortiz, MD completed his medical training and residency at the University Of Puerto Rico School Of Medicine. Following his residency, he served in the Army specializing in Obstetrics & Gynecology for 10 years. Dr. Rivera-Ortiz served as Medical Director for Healthy Beginnings Midwifery Service at St. Joseph Health System/St. Mary Medical Center in Apple Valley for 23 years, he was also credentialed in Robotic Surgery. He successfully ran an OB/GYN private practice in Southern California for 27 years. Dr. Rivera-Ortiz has a special interest in minimally invasive and reconstructive gynecologic surgeries and is credentialed in Robotic Surgery.

  • 20-Oct-2019
    I am very happy with the *Doctor Rivera for me he is the best doctor.
    Dr Ortiz was great! He made my visit very comfortable, listened well to my concerns, answered all my questions, and is intentional about following up my care. I am thankful to have found him.
    2 Total Comments