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Alexa earned her undergraduate degree from UC Berkeley and completed her Master of Science in Nursing at Vanderbilt University. Alexa has over 5 years of experience as a dermatology medical assistant, gaining a strong foundation in skin pathology, dermatologic procedures, and patient-centered care. After passing her AANP board certification in 2025, she joined Zand Dermatology.

Alexa completed a comprehensive dermatology residency under the mentorship of Dr. Sarv Zand and Dr. Paula Zand, with focused training in skin cancer detection, acne and rosacea management, eczema and psoriasis care, and the use of lasers and energy-based devices. Patients consistently describe Alexa as warm, thorough, and an excellent communicator—someone who makes complex information clear, accessible, and reassuring.

What Alexa Offers:

Medical Dermatology

• Full skin examinations and skin cancer screenings

• Treatment of acne, rosacea, eczema, psoriasis, hair loss, and more

Procedural Dermatology

• Biopsies, cryotherapy, and electrodessication & curettage

Cosmetic Dermatology

• BBL™, Ultherapy®, and Microneedling for collagen stimulation and rejuvenation

Outside the clinic, Alexa enjoys exploring San Francisco with her husband, cooking, playing soccer, and spending time with her close-knit family and friends.

We are thrilled to have Alexa at our practice and know that you will love her thoughtful, gentle, education-forward approach to care.

Jack Guan, DPM, is a foot and ankle surgeon offering the best in cutting-edge foot, ankle, and lower extremity care to patients of all ages at Bay Area Foot and Ankle Medical Clinic. Dr. Guan is the only podiatrist in the San Jose, California, area to focus on sports medicine, ankle arthroscopy and total ankle replacement, and pediatric deformity corrections. He also offers specialized regenerative medicine treatments like platelet-rich plasma (PRP). 

Dr. Guan earned his undergraduate degree in molecular cell biology at the University of California, Berkeley, in Berkeley, California. He went on to earn a Master of Science in biochemistry at Virginia Commonwealth University School of Medicine in Richmond, Virginia. Dr. Guan earned his podiatry degree at Temple University School of Podiatric Medicine in Philadelphia, Pennsylvania. 

Dr. Guan also has advanced surgical training in limb deformity correction, Charcot foot reconstruction, diabetic limb salvage, and ankle replacement. He is a member of the American Podiatric Medical Association, American College of Foot & Ankle Surgeons, and the American College of Podiatric Medicine. 

Patients trust Dr. Guan for superior surgical care. He demonstrates how much he values that trust by using the most sophisticated minimally invasive surgery techniques and the most innovative and technologically advanced ankle replacement hardware to give every patient the very best results. 

Dr. Guan welcomes new patients to call Bay Area Foot and Ankle Medical Clinic or schedule online to arrange a personal consultation. 

“I played competitive soccer at Northwestern University and had multiple orthopedic injuries, five of which required surgery. My father’s influence was undeniable, too, in my decision to enter the field of orthopedics. I also became drawn to learning how the body repairs itself and how I can use this natural ability to heal acute injuries in athletes and reverse degeneration of joints, ligaments, and tendons in active adults. I’m expanding the range of nonsurgical treatments, including arthritis treatment, tennis elbow treatment, golf elbow treatment, rotator cuff tear, plantar fasciitis, frozen shoulder, and tendonitis. I want to give my patients leading-edge treatment options they probably haven’t yet heard of – options that may help them avoid surgery and change their lives.”

At Pacific Regenerative and Interventional Medicine in San Jose, CA, Dr. Blatz uses the most advanced centrifuge available to help him design custom stem cell treatments for each patient and condition. He also uses special image-guided orthopedic ultrasound for greater diagnostic and placement accuracy. His work is focused on helping patients of all ages return to their sports and their work more quickly with less pain and much faster recovery. In his spare time, Dr. Blatz enjoys playing golf, keeping fit with cross-training and high-intensity circuit training, and spending time with his wife and two young daughters.

EDUCATION AND TRAINING

Board-Certified: Family Medicine and Sports Medicine,  American Board of Family Medicine
Fellowship: Sports Medicine, O’Connor Hospital, Stanford Medical School, San Jose, CA
Research Fellow: Stem Cell Medicine, University of Southern California, Los Angeles, CA; Orthopedics and Sports Medicine, Santa Monica Orthopedic and Sports Medicine
Residency: Family Medicine, University of Nevada, Reno, NV
MD: Chicago Medical School, North Chicago, IL
MS: Applied Physiology, Rosalind Franklin University of Health Sciences, North Chicago, IL
BA: Northwestern University, Evanston, IL

PROFESSIONAL AFFILIATIONS

Member: American Medical Society of Sports Medicine,  American Association of Family Physicians
Clinical Associate Professor: O’Connor Sports Medicine,  Stanford Medical School, San Jose, CA

TEAM AFFILIATIONS

Team Physician: Archbishop Mitty High School

Dr. Melissa Loja, MD, MAS, FACS, FSVS, RPVI, completed medical school at the University of California at Davis. She went on to be among the first in the nation to complete a specialized integrated vascular surgery residency program at the University of California at Davis. Dr. Loja was selected for the highly competitive NIH funded T32 research grant, which led to widely cited publications. She attained a Master's degree in Clinical and Translational research from these efforts. In addition, she holds a Bachelor's degree in Biologic Sciences, also obtained at the University of California at Davis. Dr. Loja specializes in vascular and endovascular surgery, including carotid artery disease, aneurysm repair, dialysis access, treatment of mesenteric and renal artery disease and lower extremity revascularization. Among her clinical interests, limb salvage and peripheral arterial disease with a multidisciplinary focus is a particular passion of hers. She is expertly trained and highly skilled in endovascular as well as surgical management of peripheral arterial disease.

Rudolf "Rudy" Buntic, MD, is a skilled plastic, hand, and microsurgeon at SOAR Spine and Orthopedics in Redwood City, California. His clinical interests include reconstructive microsurgery, focusing on the reconstruction of traumatic injuries and defects caused by cancer. 

A native of Canada, Dr. Buntic completed his post-graduate residency in general and plastic surgery at Stanford University in Palo Alto, California. He also completed a fellowship in hand and microsurgery at Davies Medical Center in San Francisco with esteemed doctors Harry and Gregory Buncke. 

Dr. Buntic is board-certified in Plastic Surgery and hand surgery by the American Board of Plastic Surgery. He is an Associate Professor in Plastic Surgery at Stanford University Medical School and a member of the University of California, San Francisco's Clinical Faculty. He is a member of several societies, including the American Association of Plastic Surgeons, the American Society of Plastic Surgeons, and the American Society for Reconstructive Microsurgery. Dr. Buntic has presented and published several scientific articles and book chapters related to various plastic, hand, and microsurgery topics. 

A prominent general surgeon, Dr. Rangaraj specializes in minimally invasive surgery, including Robotic and Laparoscopic surgeries. He is Board Certified by the American Board of Surgery (ABS) and practices in the state of California. He has over 20 years of focused experience in the field of surgery and treats Hernia, Gallbladder disease, and conditions of the small Intestine, Colon, Appendix, Thyroid, Ano-rectal, and Breast. He also performs surgeries for various types of cancer. Dr. Rangaraj believes that every patient deserves the highest quality of care in a compassionate and professional environment, and strives to achieve that through a personalized approach to treatment.Robotic, Laparoscopic and conventional surgeries performed by Dr. Rangaraj include but are not limited to Cholecystectomy, Inguinal, Ventral, and Umbilical Hernia repair, Appendectomy,Bowel resection, Anastomosis, Colectomy, Anal Fistulotomy,Vagotomy/acid reduction surgery, and wound care.