Assistant Professor of Anesthesiology · UCI Health · Orange County, CA
Interventional Pain Management & Anesthesiology
Dual board-certified in pain medicine and anesthesiology, with deep expertise in the MILD® procedure, spinal cord stimulation, and cancer pain. Assistant Professor of Anesthesiology at UCI Health. Available for speaking engagements, industry consulting, and physician education.
My Approach
I treat the whole person, not just the symptoms. That means combining rigorous, evidence-based techniques with a genuine understanding of how pain shapes your daily life.
Advanced imaging-guided diagnostics to identify the precise origin of your pain, not just mask the symptoms.
With peer-reviewed publications and active research, I bring academic rigor and the latest evidence to every treatment decision.
As a certified yoga instructor, I understand the mind-body connection and integrate holistic strategies alongside interventional procedures.
I work closely with your referring physicians, surgeons, and care team to ensure every treatment plan is coordinated and comprehensive.
Signature Specialties
Treatment options depend on individual patient evaluation and may not be appropriate for all patients.
Services
Minimally invasive, interventional procedures designed to reduce pain at its source and restore your ability to live fully.

MILD® procedure for lumbar stenosis, epidural steroid injections , facet joint blocks, radiofrequency ablation , and medial branch blocks.

Peripheral nerve blocks, sympathetic blocks, and neuromodulation for complex neuropathic pain conditions.

Intra-articular injections, viscosupplementation, and regenerative approaches for degenerative joint disease.

Occipital nerve blocks, trigger point injections, and targeted treatments for chronic migraine and craniofacial pain.
About
Originally from Fullerton, California, Dr. Lean earned her BA with Honors and Highest Distinction from UC San Diego before attending medical school at George Washington University in Washington, D.C. During her anesthesiology residency at the University of Washington in Seattle, she was selected as a Bonica Scholar, a prestigious research-track distinction. She went on to complete her pain management fellowship at UCLA.
Today, Dr. Lean serves as an Assistant Professor of Anesthesiology in the Department of Anesthesiology & Perioperative Care at the UC Irvine School of Medicine. She treats patients, teaches residents, and conducts research that has produced multiple peer-reviewed publications. She also teaches cancer pain management and ethics as faculty for the national Dannemiller Pain Review Course.
Beyond her UCI practice, Dr. Lean is available for conference speaking, medical device and pharmaceutical consulting, and physician proctoring across Southern California.
Outside of the clinic, you'll find Alexa on a yoga mat (she's a certified instructor), exploring a new city, or trying her hand at whatever catches her curiosity, from cooking to picking up a new sport. She's happiest when she's learning something that challenges her thinking. And at the end of the day, her favorite company is her dog, Jojo.
Education & Certifications
Board Certifications
Pain Medicine, American Board of Anesthesiology
Anesthesiology, American Board of Anesthesiology
Current Appointments
Assistant Professor of Anesthesiology, UC Irvine, Anesthesiology & Perioperative Care
Faculty Instructor, Dannemiller Pain Review Course (Cancer Pain & Ethics)
Research · Peer-Reviewed
Educational Publications & Media
"Knowledgeable and compassionate. She takes the time to explain everything in a way that actually makes sense and answers every question thoughtfully."
"An exceptional level of caring and expertise. She validated my concerns, really listened, and made sure I had the right referrals moving forward."
"After years of chronic pain and going from doctor to doctor, she actually found the root cause. The treatment plan she built changed my daily life."
"Thorough, professional, and genuinely compassionate. The nerve block was explained clearly, done quickly, and the relief was noticeable within days."
"Had a spinal cord stimulator placed and I'm recovering well. Feeling real improvement every day. Grateful to have found Dr. Lean."
"She doesn't rush. You feel like you're her only patient. Took the time to walk me through every option before we decided on a treatment path together."
"I was nervous about the procedure but Dr. Lean explained every step beforehand. The results have been life-changing. I can move again without pain."
Selected reviews reflect verified patient experiences on third-party platforms. Visit each platform to read all reviews.
UCI Health Locations
Schedule at any location: (657) 579-7246
Dr. Lean rotates between UCI Health locations. Attendance varies by week. Please call to confirm availability at your preferred location.

Get in Touch
For UCI Health appointments, call the number below. For speaking, consulting, or physician education inquiries, use the form.
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