Web design by Mary Ann Martinez   2007

3273 Claremont Way Suite 204 Napa, CA 94558    PHONE: (707) 259-1152   FAX: (707)259-1361   E-MAIL:  


Our Staff

It is very important to develop a good relationship with your treating therapist to achieve the best possible outcome in therapy.  With this in mind, we have a team with diverse background, experience, and areas of expertise so we can address your needs accordingly.

Mary Ann Martinez, OTR/L, CHT, Lead Therapist/Clinical Supervisor


Mary Ann graduated in 2000 from Dominican University of California, Summa Cum Laude.  She practiced in general rehabilitation and outpatient hand therapy before joining California Hand Rehabilitation in 2001.  She has been a Certified Hand Therapist since 2005 and  is trained in various Manual Therapy techniques including Active Release Technique, Strain Counterstrain, Myofascial release.  She believes in an integrative approach to facilitate patient return to function.


Mary Ann  has two growing kids,enjoys Salsa Dancing and cake decorating whenever she has time. She

is fluent in Tagalog and speaks some Spanish.

Erin Chaffee, OTR/L, Staff Occupational Therapist


Erin graduated with a Master’s degree in Occupational Therapy from Dominican University of California in 2018 and an undergraduate degree in Kinesiology, interdisciplinary in Occupational Therapy, from Sonoma State University in 2015. She has had experience in several therapy settings including: Acute rehabilitation, In-patient and out-patient care, Skilled Nursing facilities, Pediatrics, and Hand Therapy.


Erin grew up and lived locally in Marin and Sonoma County. She enjoys spending time with her two children, spouse, and Yorkshire Terrier, Minnie. In her spare time she enjoys hiking, road trips discovering new adventures, traveling to Europe, cruises, and Disneyland!  


Kenneth O'Neill, OTR/L, Staff Occupational Therapist


Ken has been a licensed Occupational Therapist since 1993.  He received his undergraduate degree from the University of California at Santa Barbara and his Masters degree from the distinguished Occupational Therapy program at the University of Southern California, graduating Summa Cum Laude.

Ken has worked in several therapy settings including Acute Rehabilitation, in-patient and outpatient care, as well as Hand Therapy.


Ken has lived in the Napa Valley since 1996 and enjoys spending time with his two growing boys and lovely wife.  Any infrequent spare moments are spent tending to his classic bungalow and neglected garden.  He speaks Spanish.

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