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10 Doctors Park Drive
Santa Rosa, CA 95405

p. (707) 546-4727
f. (707) 546-3123


Meet Our Surgeons

  • Alexander J. McMahon, DDS, MD

    Dr. McMahon is a board-certified surgeon of the American Board of Oral & Maxillofacial Surgeons. Raised in the heart of Sonoma, he completed his dental training and Oral & Maxillofacial Surgery residency at the UCLA School of Dentistry and received his medical degree from the UCLA Ronald Reagan Medical Center. Specializing in full-mouth reconstruction and zygomatic implant placement, Dr. McMahon continues to provide state-of-the-art care to his hometown communities in the Sonoma and Napa Valleys.

  • Frances U. Yoshikane, DDS, MD

    Dr. Yoshikane is a board-certified surgeon of the American Board of Oral & Maxillofacial Surgeons. After receiving her DDS from the UCLA School of Dentistry, she completed her medical degree and Oral and Maxillofacial Surgical residency at NYU in Manhattan, NY. Specializing in immediate implant placement and full-mouth reconstruction, Dr. Yoshikane's dedication to advancing surgical techniques and enhancing patient outcomes align perfectly to deliver exceptional patient care to the Sonoma Valley.

  • Matthew J. Stephens, DDS, MD

    Dr. Stephens is a board-certified surgeon of the American Board of Oral & Maxillofacial Surgeons. Trained at the UCLA School of Dentistry, he then completed Oral & Maxillofacial Surgery residency at the Mount Sinai Health System in NYC and received his MD from the Albert Einstein College of Medicine. A Northern California native, Dr. Stephens is committed to providing exceptional care to the Sonoma Valley community. He specializes in immediate implant placement and wisdom teeth extraction.

  • Paul J. Tiernan, DDS (Retired)

    Now retired, Dr. Tiernan is a board-certified surgeon of the American Board of Oral & Maxillofacial Surgeons. He completed his DDS degree at the University of Pacific and his oral surgery residency at Highland General Hospital in Oakland, California. After serving the Santa Rosa community for 30+ years, he retired in 2023.

Oral Surgeons of Santa Rosa
10 Doctors Park Drive
Santa Rosa, CA 95405
(707) 546-4727

Serving the Following Cities and Beyond
Calistoga CA • Cloverdale CA • Healdsburg CA • Lake Port CA • Petaluma CA
Rohnert Park CA • Santa Rosa CA • Sebastopol CA • Sonoma CA • Windsor CA

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