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Arian Behziz, DNP, FNP

Arian graduated from University of San Francisco with a Bachelor of Science in Nursing and a minor in Psychology and Gerontology. She then further continued her education in Loma Linda University and earned her Doctorate in Nursing Practice and became a Family Nurse Practitioner.

Arian is an empathetic Family Nurse Practitioner that has joined Advanced Pain Diagnostic & Solutions with a focus on providing quality care and having open communication with patients and their families. She brings with herself more than 8 years of clinical experience in Emergency Department as a Registered Nurse.


Tim Mansouri, FNP

Tim Mansouri's journey in healthcare started with a strong educational foundation, earning a Masters in Family Nurse Practitioner from Samuel Merritt University, Oakland, California. His academic pursuits began with a Bachelor of Science in Nursing from Kaplan University, De Moines, Iowa and an Associate of Science in Nursing from Pacific Union College, demonstrating his dedication to a comprehensive understanding of healthcare.

Tim has showcased his commitment to patient-centered care from his roles at Kaiser Permanente and Lodi Memorial, where he handled critical patient needs, to serving as the Director of Nursing and Operations at Ortho-Gen, Folsom, California. Now, Tim has brought his wealth of experience and skills to APDSS, joining as a skilled Nurse Practitioner to help patients suffering from chronic and acute pain conditions. Tim's expertise will undoubtedly enhance the patient care experience at APDSS, offering a holistic and compassionate approach to healthcare.


Todd Meadows, FNP

Prior to getting his Bachelor of Science in Nursing from University of Phoenix, Todd attended school to get his certificate in Combat, Emergency, and First Line Medical Support as well as a certificate in License Vocational Nurse/Emergency Medical Technician. He then went to Samuel Merritt University to further his education and became a Family Nurse Practitioner.

Todd has had many opportunities to gain new knowledge while playing a vital part in saving lives by working in emergency settings. He is a compassionate and valuable member of our team that helps deliver exceptional care to our patients by incorporating medical strategies and practical skills earned through years of experience in healthcare.

Jaqueline Parker

Jaqueline Parker, FNP

Jacqueline or Jackie, graduated from Samuel Merritt University’s Family Nurse Practioner Program with her Masters of Science in Nursing in 2018. She has over 30 years experience as a registered nurse in Medical -Surgical Nursing, Dialysis and has held multiple supervisory and management positions in the health insurance industry.

She started her NP career at Advanced Pain Diagnostics after interning with Dr, Haddadan as a student NP. Because of the experience she gained as a student, she had decided that helping patients that are suffering from chronic pain is one of the most compassionate ways to apply her experience and knowledge. Jackie loves making a difference at Advanced Pain Diagnostics & Solutions and believes her clinic makes an important difference in the lives of many.

Rolando Santos

Rolando Santos, APRN, MSN, FNP

Rolando earned his Bachelor of Science in Nursing from the University of Santo Tomas, in Manila, Philippines in 2003, and his Master of Science in Nursing, Family Nurse Practitioner from Samuel Merritt University, in Sacramento California in 2016. He was awarded the Service Excellence achievement by DaVita and the Mercy Touch award by Mercy General Hospital (now Dignity Hospital).

Rolando Santos, Jr. is a Family Nurse Practitioner (FNP), certified in the state of California. He started his FNP career in 2016. Before becoming an FNP, he was an Acute Dialysis RN from 2010 to 2014 and has been an RN since 2003. His work has ranged from the Emergency Department, Medical-Surgical Department, Long Term Care facility RN, and Correctional RN.


Reigene Vargas, MSN APRN FNP-BC

Reigene is a licensed Family Nurse Practitioner, with a comprehensive educational background including a Master of Science in Nursing from Samuel Merritt University, a Bachelor of Science in Nursing from Western Governors University, and an Associate Degree from Los Medanos College. She has transitioned from bedside nursing to a Family Nurse Practitioner role, emphasizing evidence-based practice and holistic health promotion. Her clinical experience spans various specialties, such as nephrology, primary care, pain management, and family medicine, demonstrated through clinical roles in different medical groups and clinics across California. Reigene was employed at Davita Home Training Program as a Registered Nurse and Preceptor. Prior to this, she worked as a Registered Nurse and Hemodialysis Technician with Davita Hospital Services and Davita Dialysis. Reigene is a compassionate nurse practioner driven by a commitment to early intervention and prevention of acute and chronic illnesses, striving for clinical excellence at Advanced Pain Diagnostic & Solutions.