Careers With St. Joseph Health

Our Values are more than just words.

They form the heart and soul of St. Joseph Health and are the prime reason we attract and retain high-caliber employees who believe in the sanctity of their work in our faith-based setting.

Recent News

Covenant Children’s NICU Caregivers Assist with Hurricane Harvey Evacuation

Covenant Children’s NICU Caregivers Assist with Hurricane Harvey Evacuation

| Contributor: kcbd Read More
Systems Embark on Making Health Care 'Friendly' for the Elderly

Systems Embark on Making Health Care 'Friendly' for the Elderly

| Contributor: Catholic Health World Read More
St. Joseph Hoag Health Hospitals Rank Among California's Best in Latest U.S. News & World Report's Listings of Best Hospitals

St. Joseph Hoag Health Hospitals Rank Among California's Best in Latest U.S. News & World Report's Listings of Best Hospitals

| Contributor: U.S. News & World Report Read More

Here you can find news articles and press releases from St. Joseph Health and it's locations.

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.

Giving back to the community. St. Joseph Health System Office

Ralph B. Hanahan, MD

Specialty
  • Radiation Oncology
Additional Language Spoken
English
Address
St. Joseph Health Medical Group
110 Lynch Creek Way
Suite A
Petaluma, CA 94954
Accepting New Patients

Primary Office

Address
St. Joseph Health Medical Group
110 Lynch Creek Way
Suite A
Petaluma, CA 94954
Get Directions
Phone
(707) 763-0600
Fax
(707) 765-1757
Hours
Mon - Fri 8 a.m. - 5:30 p.m.

More Information

Website
www.stjosephhealthmedicalgroup.com
Medical Groups & Affiliations
  • St. Joseph Health Medical Group
  • Specialties & Education

    Specialties & Education

    Primary Specialties
    • Radiation Oncology
    Education
    • College
      The Citadel - Charleston, SC
    • Medical School
      Medical University of South Carolina - Charleston, SC
    • Internship
      US Naval Hospital - St. Albans, NY
    • Internship
      USS Yellowstone - Mayport, FL
    • Residency
      US Naval Hospital - Oakland, CA
    • Residency
      US Naval Hospital - St. Albans, NY
    • Fellowship
      Mt. Zion Hospital
    • Fellowship
      Medical Center of San Francisco - San Francisco, CA
  • Biography

    Biography

    Dr. Hanahan came to Redwood in 1974. After medical school at the University of South Carolina, he joined the Navy and did his residency in Radiology at Oakland Naval Hospital. He became Chief of Radiology, Radiation Oncology and Nuclear Medicine at St. Alban Naval Hospital in New York. When he resigned his commission, he did a second fellowship at UCSF's Mt. Zion Hospital and is board-certified in both Radiology and Radiation Oncology. Dr. Hanahan specializes in Prostate Cancer and began the seed implant program at Redwood in 1999.