Empowering Care, Transforming Lives: Your Journey in Women's Health Starts Here!

About the ARMC OB/GYN PA Fellowship
Developing Skills in Obstetrics and Gynecology
ARMC OB/GYN PA Fellowship is dedicated to recruiting Physician Associates for a one-year Fellowship Training Program aimed at enhancing and developing skills in the practice of obstetrics and gynecology. Our program offers hands-on experience, mentorship from experienced practitioners, and exposure to a wide range of cases.
Our facility: Arrowhead Regional Medical Center
Arrowhead Regional Medical Center (ARMC) is a teaching hospital located in Colton, CA, in the heart of the Inland Empire. ARMC is owned and operated by the County of San Bernardino. The hospital operates ten different residency training programs and three PA fellowships.
The Inland Empire offers stunning natural landscapes and numerous opportunities for outdoor activities including hiking, camping, and water sports at places like Joshua Tree National Park and Big Bear Lake.
Its location provides easy access to a variety of attractions including coastal cities, mountains, and deserts. You can reach places like Disneyland, the beach, or the mountains within a short drive.
Address
400 N. Pepper Avenue
Colton, CA, 92324

Meet the team: Faculty

Guillermo Valenzuela, MD
Chairman

Shirley Wong, DO
Vice Chair
Residency Program Director

Kayla Witcik, PA-C
PA Fellowship Program Director

Kristina Roloff, DO MPH
MFM Fellowship Program Director

Robert J Stowe, DO
MFM Faculty

Mohammadreza Ghayuri, MD
ObGyn Faculty
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Tanya Aftandilians, MD
ObGyn Faculty
The ARMC ObGyn PA Fellowship Program offers a generous compensation package that includes:
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Generous salary
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Medical, dental, vision health benefits
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Education allowance for CME activities
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Food allowance
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Malpractice insurance
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15 days of PTO annually
Current OB/GYN PA Fellows
These fabulous PA's are undergoing training in our program now!

Kathryn Paturzo, PA-C
Anticipated graduation 10/2026

Olivia Zetty, PA-C
Anticipated graduation 10/2026