Southern California
Breast, Body & Intimate Care
Cosmetic Surgery Specialist. Female Surgeon. Awake Surgery Expert. Upland, CA.
About Dr. Diaz
A female surgeon who truly understands what women want.
Dr. Maria Diaz is Southern California's premier female cosmetic surgeon, an awake surgery pioneer, and a specialist in breast, body, and intimate care. She combines surgical precision with a deep understanding of her patients' goals to deliver natural, transformative results.
Meet Dr. DiazProcedures
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Cosmetic Surgery Specialist
Why Choose Dr. Diaz?
Extensive Surgical Training
Advanced training across cosmetic surgery, facial cosmetic surgery, and women’s health.
Awake Surgery Pioneer
One of Southern California's leading experts in awake cosmetic procedures — safer, with faster recovery.
Female Perspective
As a female surgeon, Dr. Diaz brings a unique understanding of women's aesthetic goals and concerns.
Patient Stories
Real Results, Real People
"Simply THE BEST Dr. there is. I had Lipo 360 with Renuvion and a BBL. Dr. Diaz has set an example and raised the bar of how medicine should be practiced… with compassion, professionalism, being personable, available and knowledgeable all while being an absolute artist. I would NEVER think about going anywhere else. The staff is sooooo nice! Thank you Dr Diaz you literally changed my life."
— Roger
Verified Patient
Our Specialty
Awake Procedures — No General Anesthesia
Dr. Diaz is one of Southern California's leading pioneers in awake cosmetic surgery. Using tumescent local anesthesia, patients remain comfortable and conscious — eliminating the risks of general anesthesia and enabling faster recovery.
Learn About Awake SurgeryNo General Anesthesia
Faster Recovery
Lower Risk
Real-Time Results
Education & Insights
From the Blog
Ready to Begin?
Schedule Your Free Consultation
Take the first step toward your transformation. In-person and virtual consultations available.