Provider Directory

Meet our team of dedicated providers

Our Physicians and support staff are specialists in occupational medicine, internal medicine, orthopedic surgery, toxicology, physical medicine and rehabilitation and are in-clinic to eliminate costly employee referral downtime.

 

Fredirick Arbenz, MD

Occupational Medicine

Specialist

 

El Centro

Medical Director

Nathaniel Bautista, MD

Board Certified

Occupational Medicine

Internal Medicine

 

Oxnard

Medical Director

Terry Bullard, PA-C

Board Certified

Physician Assistant

 

 

Santa Fe Springs

Paul Christensen, MD, MRO, FACEP

Emergency Medicine

 

 

Santa Maria Valley 

Medical Director

Ron Crowell, MD

Board Certified

Emergency Medicine

 

 

Santa Fe Springs

Chief Medical Officer

Robin Collier, L.AC

Licensed Acupuncturist

 

 

 

Santa Fe Springs 

Fred Crum, RPT

Registered Physical Therapist

 

 

 

Santa Fe Springs

Karen Delahoussaye, PA-C

Physician Assistant/Board Certified

 

 

Santa Fe Springs

 

Michael Green, DO

Occupational Medicine

Specialist

 

 

Santa Fe Springs

 

Michael Hadley, MD

Workers Compensation

Systems Specialist

 

 

Santa Fe Springs

Eric Greenberg, MD, MRO, FACEP

Emergency Medicine Physician



 

Santa Maria Valley

 

Herbert Jennings, MD, QME, MRO

Board Certified

Occupational Medicine

 

 

Irvine

Chief Medical Officer

Crystal Krammerer, PA-C

Board Certified

Physician Assistant

 

 

Napa

Tina Koshrovi, PA-C

Board Certified

Physician Assistant

 

 

Irvine

 

Matthew Longacre, MD

Board Certified
Orthopedic Surgery

 

 

Santa Fe Springs

Tracy Lee, MD, MPH, MS

Board Certified
Occupational Medicine

 

 

Irvine

Justin Nash, MD, MPH

Staff Physician

 

 

 

Napa

Mark Newman, MD

Staff Physician

 

 

 

Oxnard

John Onofre, PA-C

Board Certified

Physician Assistant

 

 

Oxnard

 

Andrew Saleh, MD, MPH

Board Certified

Family Medicine

 

 

National City

 

Paul Young, MD, MRO, FACEP

Emergency Medicine Physician
 

 

 

Santa Maria Valley