Our Services

Gynecology

We offer exceptional care for every stage of a woman’s life. Our board-certified gynecologists are experts in helping you improve your health, whether that means prevention and wellness in your 20s, successfully navigating menopause in your 50s, or thriving in your 80s.

Our expertise includes the medical issues that most often affect women’s quality of life, including menstrual, urinary, fibroid and hormonal problems – and we’re pleased to offer today’s most successful solutions, such as minimally-invasive and robotic surgery.

Meet Our Doctors

Dennis J. Buchanan MD (714) 992-5350
Obstetrics/Gynecology (Board Certified)
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Office :
1950 Sunnycrest Drive, Suite 2700E
Fullerton, CA 92835
Jacquelyn D. Cortez DO (714) 992-5350
Obstetrics/Gynecology (Board Certified)
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Office 1:
1950 Sunnycrest Dr., Suite 2700D
Fullerton, CA 92835

Office 2:
4300 Rose Dr., Ste. F
Yorba Linda, CA 92886
Theresa Franks MD (714) 992-5350
Gynecology (Board Certified)
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Office 1:
4300 Rose Dr., Suite F
Yorba Linda, CA 92886

Office 2:
1514 S. Valley Vista Drive
Diamond Bar, CA 91765
Brian C. Gray MD (714) 992-5350
Obstetrics/Gynecology (Board Certified)
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Office 1:
1950 Sunnycrest Drive, Suite 2700B
Fullerton, CA 92835

Office 2:
4300 Rose Dr., Ste. F
Yorba Linda, CA 92886
Donald W. Henderson MD (714) 992-5350
Obstetrics/Gynecology (Board Certified)
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Office 1:
1950 Sunnycrest Drive, Suite 2700E
Fullerton, CA 92835

Office 2:
4300 Rose Dr., Ste. F
Yorba Linda, CA 92886
Thomas C. Hughes MD (714) 992-5350
Gynecology
Obstetrics/Gynecology (Board Certified)
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Office :
1950 Sunnycrest Drive, Suite 2700A
Fullerton, CA 92835
Robyn Lawton MD (714) 992-5350
Obstetrics/Gynecology (Board Certified)
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Office 1:
1950 Sunnycrest Dr., Suite 2700
Fullerton, CA 92835

Office 2:
4300 Rose Dr., Ste. F
Yorba Linda, CA 92886
Vivian Lin MD (714) 992-5350
Obstetrics/Gynecology (Board Certified)
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Office 1:
1950 Sunnycrest Drive, Suite 2700B
Fullerton, CA 92835

Office 2:
4300 Rose Dr., Ste. F
Yorba Linda, CA 92886
Melanie Santos MD (714) 992-5350
Urogynecology (Board Certified)
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Office :
1950 Sunnycrest Drive, Suite 2700D
Fullerton, CA 92835
Johanna Su MD (714) 992-5350
Obstetrics/Gynecology (Board Certified)
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Office 1:
1950 Sunnycrest Dr., Suite 2700B
Fullerton, CA 92835

Office 2:
4300 Rose Dr., Ste. F
Yorba Linda, CA 92886