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Meet Our Physicians Assistants

Dedicated Professionals | Extensive Experience | Compassionate Care

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Megan M. Ford, PA-c, MPAS

Megan assists Dr. Diana and Dr. Freeto in their clinical and surgical practices. In addition to assisting in surgery, Megan maintains office hours for direct patient care.

Megan, a native of Northern California, is a graduate of Touro University California with a Master of Science in Physician Assistant Studies, and a Master of Public Health. Her interests include food & wine, cooking, skiing, backpacking, and exploring new places.

Training: Physician Assistant (Certified in California)
Education: Masters of Physician Assistant Studies, Touro University – Masters of Public Health, Touro University

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Kimberly M. Opitz, PA-c, MPAS

Kimberly assists Dr. John Diana in his clinical and surgical practices. In addition to assisting in surgery, Kimberly maintains office hours for direct patient care.

Kimberly, a native of Southern California, is a graduate of the Loma Linda University with a Masters of Physician Assistant Studies. She specialized in various areas of orthopaedics throughout her training. She has volunteered in both medical care and mission work in Ecuador and Peru. Kimberly enjoys spending time with her family and has interests in running, mountain biking, camping, traveling, and baking. 

Training: Physician Assistant (Certified in California)
Education: Masters of Physician Assistant, Loma Linda University

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Stephanie Serna, PA-c, MPAS

Stephanie assists Dr. John Diana and Dr. Jason Huffman in their clinical and surgical practices. In addition to assisting in surgery, Stephanie maintains office hours for direct patient care.

Stephanie, a native of Arizona, is a graduate of the Western University of Health Sciences with a Masters of Physician Assistant Studies. She enjoys wine tasting, kayaking, traveling, and trying new restaurants.

Training: Physician Assistant (Certified in California)
Education: Masters of Physician Assistant, Western University of Health Sciences

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Sylvia Meyer, PA-c, MPAS

Sylvia assists Dr. Daniel Birkbeck in his clinical and surgical practices.  In addition to assisting in surgery, Sylvia maintains office hours for direct patient care, with a focus on evaluation and treatment of elbow, wrist, and hand disorders.

Sylvia, a native of Michigan, is a graduate of James Madison University with a Master of Science in Physician Assistant Studies. She completed her undergraduate at the University of Michigan with a Bachelor of Science in Kinesiology.

Sylvia enjoys being outdoors in the always beautiful California weather, running and hiking with her chocolate lab.  She likes watching college football, listening to live music, and is quickly becoming a wine enthusiast, exploring the Napa Valley vineyards.

Training: Physician Assistant (Certified in California)
Education: Bachelor of Science in Kinesiology, University of Michigan – Master of Science in Physician Assistant Studies, James Madison University

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Kaelyn Caspillo, PA-c, MPAS

Kaelyn assists Dr. Jason Huffman in his clinical and surgical practices as well as our Fracture Liaison Service (FLS) Osteoporosis Clinic.  In addition to assisting in surgery, Kaelyn maintains office hours for direct patient care.

Kaelyn , a native to Northern California, is a graduate of Touro University with a Master of Physician Assistant Studies, and a Master of Public Health. Her interests include baking, making cheese fondue, card games, camping, soccer, and running.

Training: Physician Assistant (Certified in California), Fracture Liaison Service (Certified)
Education: Masters of Physician Assistant Studies, Touro University – Masters of Public Health, Touro University –  Bachelor of Science in Neuroscience , UCLA

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Kim Bellows, PA-c

Kim assists Dr. Jacqueline Weisbein in her clinical practice and maintains office hours for direct patient care.

Kim, a native of California, has over 20 years of experience in Pain Management, Family Medicine and Military Medicine. Kim brings educated, compassionate and respectful strategies to treat chronic and acute pain. Assisting patients overcome health challenges has been a rewarding career path for her. She enjoys the beauty and diversity of northern California, spending time with her family, food & wine, regular exercise, cycling, jogging, hiking and yoga.

Training: Physician Assistant (Certified in California)
Education: Bachelor of Science Degree in Physician Assistant Studies, University of California, School of Medicine

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Jessica Strock, PA-c, MPAS

Napa Valley Orthopaedics proudly welcomed Jessica in November 2023.

Jessi, was raised in Massachusetts. She obtained her BA in biochemistry from Wheaton College and went on to obtain her Masters in Physician Assistant Studies from MCPHS University in New Hampshire

Prior to moving to California, Jessi worked as a PA with Massachusetts General Hospital with a focus on sports medicine, which was her preferred specialty. As a former college athlete with sports injuries herself; the experience in athletics and subsequent injuries and recoveries was inspiration to pursue a career in orthopaedics and a focus on sports medicine. Jessi relocated to California in 2017 and was a PA at St. Helena Hospital working with the orthopaedic group there as a surgical first assist, consulting, applying casts and splints, as well as seeing her office patients.

Orthopedics runs in the family; Jessi’s husband is an orthopaedic surgeon on active duty with the US Air Force and also is an on-call surgeon with NVO. Jessi’s sister had been a member of the NVO staff prior to her return to the east coast to become a PA-she is now a PA working with a hand surgeon in Boston.

Jessi enjoys spending time with her four children, golfing with her husband, hiking and yoga.

Her favorite part of her job is seeing patients regaining the movement that helps them enjoy their lives.

Training: Physician Assistant (Certified in California)
Education: Master of Health Services—Physician Assistant Studies, MCPHS University.

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Andrew Wilson, PA-c, MPAS

Napa Valley Orthopaedics proudly welcomed Andrew in January 2023.

Andrew was raised in Colorado and San Luis Obispo. He went on to complete his undergraduate education in New York. He has enjoyed living in and working in countries outside of the USA, including Australia – which triggered the beginning of his healthcare career. He has been dedicated to healthcare since that time.

He began his medical career as an EMT in Alameda and Solano County. He also worked as an Emergency Department technician at Kaiser Oakland, gaining valuable experience in emergency medicine.

Andrew received his Master of Health Services and Physician Assistant Studies from UC Davis.

After obtaining his license, Andrew worked in Pain Management and Physical Medicine & Rehabilitation before joining Dr. Michael Caravelli in his clinical and surgical practice. They work as partners to be available to their patients when needed.

Andrew is most committed to offering his education and experience to patients by actively listening to their concerns, personal needs, and goals and introducing treatment options that allow them to restore or preserve their function and comfort.

Andrew enjoys cooking, backpacking, and spending time with his wife and two boys. He enjoys hiking and loves exploring with his family.

Andrew’s future goals and aspirations include mentoring and teaching physician assistants in training.

Training: Physician Assistant (Certified in California)
Education: Master of Health Services—Physician Assistant Studies, University of California Davis