• Hartman Hand Welcome As your hand and upper extremity rehabilitation experts, Hartman Hand and Occupational Therapy works in partnership with you and your physician to regain lost function, relieve pain and return you to the activities you desire.
  • Hartman Hand

    Our personalized treatment programs and individual attention will help you accomplish your goals quickly and get you back to daily life. Our work reintegration programs focus on return to gainful employment and education to reduce re-injury.
  • Hartman Hand
Our Providers

Our dedicated staff is committed to the science of hand and upper extremity rehabilitation. Nationally certified therapists equipped with the latest technology and proven treatment methods are here to serve you.


John Hartman - OTR/L, CHT

John Hartman John Hartman is a 1991 summa cum laude graduate of the University of Buffalo, School of Occupational Therapy. A four-year member of the varsity football team, John served as a team captain his junior and senior years. While at UB he was a two-year recipient of the Dom Grassi Award recognizing athletic and academic excellence.

In 1997 he received national certification as a specialist in the field of hand and upper extremity rehabilitation. After working in the industrial rehabilitation and outpatient settings both in Harrisburg, PA and locally at FF Thompson Hospital, John began private hand and upper extremity practice in 1998. Currently he owns three offices in the greater Rochester area devoted to the evaluation and treatment of individuals with upper extremity injuries. John also serves as an ergonomic consultant for the Occupational & Environmental Medicine Department at University of Rochester's Strong Memorial Hospital. John and his wife Maria reside in Victor with their three children. He enjoys staying active in sports and coaching his children.




Nicholas Nanna - MS, OTR/L

Nicholas Nanna Nicholas Nanna is a New York State licensed occupational therapist who received his Bachelor's and Master's degrees from D'Youville College Buffalo, New York in 1995. Nick brings extensive experience in the specialty of hand and upper extremity rehabilitation. From 1997 to 2002 he was employed as a hand therapist at the Sports Medicine and Rehabilitation Therapy Center in Bradford, Pennsylvania. Mr. Nanna has been employed at Hartman Hand and Occupational Therapy since 2002. His interests include sports injuries; fracture management, arthritis and tendon repairs.



Theresa Slyngstad - MS, OTR/L

Theresa Slyngstad Theresa Slyngstad is a New York state licensed Occupational Therapist who received her Bachelors degree in 2005 from Hope College in Holland, Michigan. In 2007 she received her Masters degree in Occupational Therapy from Tufts University in Boston, Massachusetts. Theresa’s experience includes a variety of settings including Hand and Upper Extremity Orthopaedic Rehabilitation, Hospital Acute Care Rehabilitation, and Skilled Nursing Rehabilitation. Theresa looks forward to receiving national certification as a Hand Therapist. She enjoys traveling, hiking, and spending time with family and friends.



Kim Chase - OTR/L, CHT

Kim Chase Kim Chase received her bachelor’s degree from Keuka College in 1991. She has been a New York State licensed Occupational Therapist (OT) in hospital, nursing home and outpatient settings. Her positive experiences in outpatient hand therapy and ongoing desire for increased knowledge has shaped her career of more than 20 years. In 1998, she achieved the nationally recognized credentials of certified hand therapist (CHT). Kim has a passion for continuing education and has extensive experience with the treatment of patients following upper extremity surgery, fabrication of custom hand splints and scar management. Outside of work, she enjoys spending time with family and volunteering with her therapy dog, Tucker.



Natalie Harden - COTA

Natalie Harden Natalie Harden is a New York State Certified Occupational Therapy Assistant who has been working in the hand therapy and skilled nursing realms since 2004. She served in the U.S. Navy as a Hospital Corpsman and Occupational Therapy Technician for 6 years. She directly treated and rehabilitated active duty military and their families in many Naval Hospitals along the east coast during this time. Natalie gained her National certification as a Certified Occupational Therapy Assistant through the Army Academy of Health and Sciences in 2008. She is passionate about helping others, learning about alternative health modalities, and spending time with her two young boys.