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Mario Javier Pineda, MD, PhD

Primary Specialty

Gynecological Oncology

Dr. Pineda joined Ironwood Cancer & Research Centers in August 2017.  Dr. Mario Javier Pineda is fellowship trained in Gynecologic Oncology and board certified in Obstetrics and Gynecology.  He is a first-generation Salvadoran-American fluent in both English and Spanish.  Dr. Pineda received his medical training at the University of Washington School Of Medicine.  While there he also obtained a PhD in Molecular and Cellular Biology.  He then completed an Obstetrics and Gynecology residency at the Los Angeles County & University of Southern California Medical Center in 2011 where he served as Chief Resident.  Dr. Pineda finished his training with a fellowship in Gynecologic Oncology at Northwestern University.

Dr. Pineda offers women with gynecologic cancers a comprehensive approach to their care including radical pelvic and vulvar surgery, advanced minimally invasive and robotic procedures, and laser surgery.  Areas of specialty include treatment of ovarian, fallopian, primary peritoneal and uterine cancers; cervical, vulvar and vaginal cancer (including pre-invasive lesions); and gestational trophoblastic disease.  He has extensive experience in chemotherapeutic and clinical trial management of patients.

He is an active member of the American Society of Clinical Oncologists, the Society of Gynecologic Oncologists and the American Congress of Obstetricians and Gynecologists.

Medical Education

Medical School

University of Washington School of Medicine, Seattle, Washington


Los Angeles County – University of Southern California Medical Center, Los Angeles, California
Obstetrics and Gynecology


Northwestern Feinberg School of Medicine
Gynecologic Oncology

Board Certification

Diplomate, American Board of Obstetrics & Gynecology
American Board of Obstetrics & Gynecology

Dr. Pineda is fluent in Spanish and will see patients for Gynecological Oncology at our Mesa (Arbor), Gilbert, Casa Grande, and Chandler Women’s Centers.

Direct Contact Information for Dr. Pineda


Address:  685 S. Dobson Rd., Chandler, AZ 85224

Phone:  480-324-5220

Fax:  480-257-1998



Address:  3686 S. Rome St., Gilbert, AZ 85224

Phone:  480-792-6006

Fax:  480-427-3339


Mesa (Arbor)

Address:  6111 E. Arbor Ave., Mesa, AZ 85206

Phone:  480-792-6006

Fax:  480-427-3339

Casa Grande

Address:  1637 E. Monument Plaza Circle Suite 1, Casa Grande, AZ 85122

Phone:  480-324-5220

Fax:  480-257-1998