Rossignol Medical Center – Welcome to the Rossignol Medical Center
  • Find a Doctor Near You

    • Dr. Dan Rossignol
      SoCal, NorCal, Florida
    • Dr. Dane Fliedner
      Southern California
    • Dr. Salma Ahsan
      Central Florida
    • Lanier Rossignol, FNP
      Southern California
    • Sandi Kreizenbeck, FNP
      Northern California
    • Nicole Rincon, PA
      Southern California
    • Tracie Salber, ARNP
      Central Florida
  • New Patients

    Interested in becoming a new patient? Schedule an appointment with one of our specialists below.
    Schedule An Appointment
  • Existing Patients

    Are you an existing patient and need to submit a Follow-up Form? Download the form below.
    Download Follow-Up Form

Meet The Team

Dr. Dan Rossignol
MD FAAFP, FMAPS

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

Dr Dane Fliedner

Dr. Dane Fliedner
MD MPH, FAAP

Dr. Dane Fliedner is an Integrative and Functional Medicine Pediatrician. A
Southern California native …

Salma Ahsan

Dr. Salma Ahsan
DO, FMAPS

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

Lanier Rossignol
BSN, MSN, FNP-C

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

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 …

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) and graduated …

Tracie Salber

Tracie Salber
ARNP, CPNP

Tracie Salber, ARNP, CPNP, is a board-certified pediatric nurse practitioner trained in integrative medicine for …

Simplified Approaches

Treatment of pathophysiological comorbidities

Simplified Approach to Biomedical Treatments in Autism and ADHD

In 2002, my older son, Isaiah, was diagnosed with autism. At the time I had been practicing as a family physician for about five years. Prior to his diagnosis, Isaiah loved to get down on the floor and spin…

Cerebral Folate Receptor

Simplified Approach to Cerebral Folate Deficiency in Autism

This article is a companion piece to the story of Evan Carkhuff, a child diagnosed with autism who went many years with neither a medical diagnosis nor an explanation for his medical condition…

Simplified Approach to Mitochondrial Dysfunction in Autism

Recently, evidence has accumulated that some children with autism spectrum disorders (ASDs) have mitochondrial disease (also known as mitochondrial disorders) or mitochondrial dysfunction….

Articles and Publications

  • Identification and treatment of pathophysiological comorbidities

    Reviewing some of the pathophysiological abnormalities associated with ASD and their potential associated…

  • Cerebral Folate Receptor Autoantibodies

    Cerebral folate deficiency (CFD) syndrome is a neurodevelopmental disorder typically caused by folate receptor autoantibodies…

  • Mitochondrial dysfunction in Autism Spectrum Disorders

    A comprehensive literature search was performed to collate evidence of mitochondrial dysfunction in autism spectrum disorders (ASDs) with two…


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