Practitioners

Dr. Dan Rossignol
MD FAAFP, FMAPS

Dr. Dan Rossignol is a board-certified family physician who has been
practicing integrative and …

Dr. Salma Ahsan
DO, FMAPS

Dr. Salma Ahsan is a board certified Internal Medicine physician and a fellow of the Medical Academy …

Dr. Patricia Goldenberg

Dr. Patricia Goldenberg
MD

Dr. Patricia Goldenberg is a Southern California native and has been a Board-Certified Pediatrician for 15 years …

Dr. Richard E. Frye
MD, PhD, FAAP, FAAN, CPI

Dr Frye is a Child Neurologist with expertise in neurodevelopmental and neurometabolic…

Dr. Brian Hauser
MD, MAPS, AAFP

Brian Hauser MD is a board certified family physician joining Rossignol Medical Center in Aliso Viejo, California…

Sanaz Demehry
MS, PA-C

Sanaz Demehry, MS, PA-C, is an Integrative, Herbal, and Functional Medicine Practitioner.  A Southern California native …

Desiree Chandler

Desiree Chandler
BA, MSN, FNP-C

Desiree Chandler, RN, MSN, FNP-C is a certified Family Nurse Practitioner who received a Master of Science in Nursing from the University of San Diego …

Sandi Kreizenbeck
DNP, FNP, PMHNP-BC

Sandi Kreizenbeck, DNP, FNP, PMHNP-BC received her Bachelor of Science in Nursing from the University of San Francisco …

Lanier Rossignol
BSN, MSN, FNP-C

Lanier Rossignol, BSN, MSN, FNP-C is a certified family nurse practitioner trained in evidence-based medicine at …

Nicole Rincon
MS, PA-C

Nicole Rincon, MS, PA-C is a board-certified Physician Assistant. She majored in Biology at UC San Diego (UCSD)…

Office Staff

Kelly Sirju
Office Manager

Kelly received her degree as a Medical Assistant from Keiser University in 2008 and is now the office manager.

Danielle Cordeau
Administrative Assistant

Danielle graduated from Eastern Florida State College and has a Certificate for Office Systems Specialist.

Katie Pace
Administrative Assistant

Katie is our Administrative Assistant and has worked with Rossignol Medical Center since 2014. Organization is her specialty.

Johanna Cobbold
Registered Nurse

Johanna is a Registered Nurse with 30 years of experience. She is also a parent of a son with autism.

Alicia French
Registered Nurse

Alicia has a passion for helping others and using her nursing skills to help those with special needs.

Dana Crucil
Board-Certified Behavior Analyst

Dana Crucil is a Board-Certified Behavior Analyst who has worked in various settings including: school districts, nonpublic agencies, colleges, and insurance companies.

Rosa Watson 
Front Desk Receptionist

Rosa is our Front Desk Receptionist in our Florida office. She is a native of Cuba and speaks fluent Spanish.

Sandra Reyes
Staff

Sandra Reyes will be finishing undergraduate school in the Fall of 2021 with a B.A. in Sociology from California State University, Fullerton. She aspires to help others. She is also bilingual and speaks Spanish and English fluently.

Juliana Saldivar
Staff

Julie Saldivar loves the medical field and helping others. She is working on her associate degree to become an RN in the near future.

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