Therapists

Dr. Lisa Petrie, Physical Therapist, DPT, CWCE, Owner

Lisa has been a licensed physical therapist since 1988. She received her Bachelor’s degree in physical therapy from Wayne State University and received her post graduate Doctorate degree from Boston University, graduating with a 4.0 grade point average. She is a certified work capacity evaluator (CWCE). She is a Gaylord resident and founded Northsport Physical Therapy in 1993, which quickly expanded to 4 locations. She is a member of the APTA, MPTA, and Chamber of Commerce. She continues to treat patients in all three locations along with her administrative duties. She has extensive training in the treatment of facial paralysis, integrative manual therapy, myofascial and trigger point release techniques, muscle energy techniques, applied kinesiology, proprioceptive training, and functional capacity evaluation. She has a variety of experience including hospital acute care, wound care, pediatrics, home care, orthopedics, neuro rehabilitation, spinal injuries, aqua therapy, and sports injuries. Lisa is also an Anatomy and Physiology professor for North Central Michigan College in Petoskey.

Tanner Shellenbarger DPT, Physical Therapist, Gaylord

Tanner received his Doctorate of Physical Therapy from the University of St. Augustine, Miami Florida in 2021 and worked in an outpatient private practice in Florida until 2024 at which time he relocated to Michigan. He joined the Northsport team in 2024 and works primarily in our Gaylord office. He has extensive experience in orthopedics and sports medicine rehabilitation and is skilled in manual therapy techniques, exercise programs, and work hardening. He resides in Gaylord and participates in multiple sports including baseball, basketball, volleyball and golf.

Michele Billmaier, MSPT, Physical Therapist, Fairview/Roscommon

Michele joined the Northsport team in December 2010. She received her Masters of Physical Therapy from Central Michigan University in 2001. Prior to that she was a certified physical therapist assistant since 1988. She has extensive experience and training in treatment of sports injuries, head injuries, muscle energy techniques, and kinesiotaping. She is currently working toward her certification in manual therapy. She lives in Mio where she is involved with hippotherapy for handicapped children and an active volunteer for girlscouts.

Alecia Catrell, PTA, Physical Therapist Assistant, Roscommon

Alecia joined the Northsport team in 1996. She received her Bachelors degree in Health Education from Saginaw Valley State University in 1992 and her Associates degree in Applied Science and certification as a physical therapist assistant in 1996 from Delta College and is a licensed PTA in Michigan. She is also a licensed massage therapist specializing in medical and sports massage. She has taken extensive continuing education including courses in sports injury rehabilitation, functional and sport specific exercise, myofascial and trigger point techniques, instrument assisted soft tissue mobilization (Graston technique), proprioceptive exercises, rotator cuff dysfunction, spinal instability, revolutionary yoga rehabilitation, functional capacity evaluation, and work hardening. In addition to her duties at Northsport, Alecia is active in the community and works as the sports therapist for the Kirtland Community College Athletic Program, as well as volunteering her services to the Roscommon High School Athletic Department.

Emily Hubbard, PTA, Physical Therapist Assistant, Gaylord

Emily moved to Gaylord in the spring of 2020. She graduated from Delta College in 2016 with her Associates Degree in Applied Science, and soon after obtained her license as a physical therapist assistant. She joined the Northsport team in January of 2021. She enjoys treating patients of all ages and is experienced working with a variety of orthopedic conditions. She has a background working in different clinic settings including: outpatient, inpatient, and home health care. She enjoys performing manual therapy, kinesiology taping, gait training, orthopedic rehab, neuro rehab, and scoliosis rehab. In her personal time she enjoys being active, taking hikes, baking/cooking, and spending time with her family and friends.

Maggie Winans, PTA, Physical Therapist Assistant

Maggie joined our Northsport team in May, 2012. She received her Physical Therapist Assistant degree in December of 2011 from Macomb Community College. Maggie has been a local cheerleading coach for several years, developing a special interest in sports medicine and orthopedic rehabilitation. She is also proficient in massage and manual techniques.

Brad McDonald, PTA, Physical Therapist Assistant, Gaylord

Brad joined the Northsport team in January 2022. He is a graduate of Mid Michigan Community College where he earned his Associates Degree in Applied Science and became a licensed physical therapist assistant in 2017. He has worked in a variety of settings including outpatient, in-patient, and skilled nursing facilities. He enjoys working with all patients, but has a special interest in orthopedics and sports medicine. He is well rounded in treatment options including exercise, manual therapy, and aqua therapy. He is a Gaylord resident and enjoys all that northern Michigan has to offer including snowmobiling, playing softball and spending time with his family.

Lynne Moran, Physical Therapist, Roscommon

Lynne joined the Northsport team in May, 2013 on a part-time basis. She is a graduate of the University of Michigan and is now a resident of the Higgins Lake area. Her goal is to contribute to her home community. She has been active in the Rotary and received the Service Above Self Award in Grayling in 2012. Her interests include the practice of manual therapy, orthopedics and geriatrics. She has over 35 years of experience including hospital acute care, home care, nursing home care, orthopedic and manual practice in the out-patient setting, and myofascial and trigger point release. She has instructed at the Macomb Community College PTA program and Oakland University PT program. Her other interests include Michigan football and sports, gardening, and reading.