Asha Byrd, MPAS, PA-C

Asha is a graduate of Rocky Mountain University of Health Professions in Provo, UT, and earned a Masters Degree in Physician Assistant Studies. She grew up in Davis, California and then attended Scripps College in southern California for her undergraduate education. She is a Shawnee Tribal citizen, and she participated in the Four Directions Summer Research Program at Harvard Medical School for Native Americans committed to healthcare careers.

She has worked previously at UC Davis Medical Center Emergency Department in Sacramento and also worked in senior living, geriatrics, and hospice care. She has also volunteered at the Sacramento Native American Health Clinic and Northeastern Tribal Health System in Oklahoma where she gained a deeper appreciation of the importance of providing holistic care to diverse communities.

Asha joined Advanced Pain Diagnostic and Solutions with the goal to provide compassionate and culturally competent care to our patients. In her spare time she enjoys reading, hiking, dancing, and takes pride in mentoring students interested in the PA profession.


Angela Luu, PA-C

Angela graduated from University of California, San Diego with a Bachelor of Science in Biochemistry and Cell Biology, and a minor in Global Health. To make a larger impact in healthcare, she furthered her education and earned her Master’s Degree in Health Services – Physician Assistant Studies from University of California, Davis. Prior to becoming a PA, Angela has worked in various specialties including Primary Care, Pulmonology, Internal Medicine, Emergency Medicine, Orthopedic Surgery, and Gastroenterology. 

Her experience working in different specialties gave her a deeper understanding of the importance of patient-centered and patient-tailored care. Angela joined Advanced Pain Diagnostic and Solutions to fulfill her goal of providing quality care that bridges the gaps in healthcare and improves patient outcomes. Besides English, she can speak Cantonese and she is receptive in Vietnamese. Angela’s enthusiasm, professionalism, technical skills, and clinical competence have made her the perfect candidate for Advanced Pain Diagnostic & Solutions to improve the efficiency, effectiveness and reach of patient care.

Sara Niknam

Sara Niknam, PA

Sara Niknam joined our practice in early 2018 after earning her Master’s degree in Physician Assistant Studies from Touro University in Henderson, Nevada. Originally, she received her Doctor of Medicine degree from Semnan University of Medical Sciences and Health Services.

She worked as a General and Family physician from 2005 until 2009, when she moved to Virginia. There she became a Medical Research Assistant until 2011. Then, in 2017, Sara earned her Through her extensive experience and interpersonal skills, she has come to be an important part of the Advanced Pain Diagnostic & Solutions pain management family.


Erik Smith, PA-C, MPH

The Associate Medical Director of Advanced Pain Diagnostic & Solutions, Erik Smith graduated with honors from Utah Valley University, and later from Brigham Young University, majoring in Exercise Science. He then received dual Masters Degrees in Physician Assistant Studies, as well as Public Health, at Touro University-California. He possesses several advanced certifications, which includes training in the field of Addiction Medicine.

He has worked in Emergency Medicine, Urgent Care, Family Practice, as a Sub-Investigator in Medical Clinical Trials, specialized in Amniotic Stem Cell Treatments, and has found his calling in Chronic Pain Management. He has trained and mentored many Medical Students, including the time when he was an Associate Professor of Family Medicine at California Northstate University-College of Medicine. Erik is bilingual with the ability to speak Spanish in addition to English.