Clinic Staff

Dr. Karen L. Ross, PT, DPT

Attended Texas Woman’s University obtaining a BS in Psychology (1976) and BS in Physical Therapy (1978). Graduated Who’s Who among students in American Universities & Colleges. Graduated January 2006 with Doctor of Physical Therapy from Boston University.

Over 30 years experience in orthopedic physical therapy private practice. Owner of Ross Physical Therapy and Rehabilitation, LLP since 1983.

Received Small Business of the Year Awards from Corpus Christi Chamber of Commerce in 1990 as well as from the Small Business Administration in 1991. Joint ventured with faith-based health care system from 1994 to 2005 to developed therapy services across the continuum of care for 6 hospitals, 9 outpatient clinics, rehab, skilled and home care. Returned to private practice in 2006 forming Affiliated Therapy Group Practice, Inc.

Currently serving as President/CEO of AThGP which is a therapist owned private practice which contracts to provide therapy services for a local healthcare system. This contract allows our therapist to maintain their ability to perform as private practitioner but in the acute care setting which is consistent with the APTA Vision 2020 statement regarding autonomous practice for physical therapists.

On a personal note, enjoys working in the yard, maintaining a 3 acre homestead with a koi pond and deer feeder within view of the dinner table. Also the loving mother of several Persian cats.

Dr. Lynn Schauster, PT, DPT

Dr. Schauster has been a physical therapist since 1992. She graduated from Maryville University in St. Louis, Missouri with her Bachelor’s degree in Physical Therapy and went on to pursue her Clinical Doctorate in Physical Therapy through Boston University and graduated in January 2006. Dr. Schauster has been practicing physical therapy in Corpus Christi, Texas since 1992 with her focus being treating musculoskeletal orthopedic conditions in the outpatient setting. She has extensive continuing education in McConnell and Kinesiotaping techniques and also recently completed the Graston Technique manual therapy training. She is also active in the community including volunteering for the Diabetes and American Heart Association walks and also gives local talks to community organizations on common orthopedic conditions seen in therapy and preventative exercises. She believes in using evidence-based practices when treating clients which includes not only what is published in the literature but also what has achieved the best results in her past experience, and most importantly incorporating what the client’s values and beliefs are that will help them achieve improved quality of life.

On the personal side, Dr. Schauster enjoys vacations around the U.S. to enjoy the outdoor landscape it has to offer as well as exercising to stay healthy. In her free time she enjoys being outside and enjoying spending time with family and friends.

Anita M. Spreen, OT, LLCC

Attending the University of Texas Medical Branch, Galveston, Texas, Anita received a B.S. in Occupational Therapy. She began her practice in the school setting with severely disabled children moving to the hospital to continue treating the orthopedic and neurologically disabled. In 1995, she moved into the private practice setting treating orthopedic injuries of the upper extremities. Anita has worked over 25 years as an Occupational Therapist and has been practicing in Corpus Christi since 1983.

Anita recently completed her certification in Complex Decongestive Physiotherapy (CDP) and Manual Lymphatic Drainage (MLD) thru the Upledger Institute, Inc.

Anita has been married for 25 years. They have 2 sons who are active in sports and outdoor activities. She enjoys golf, traveling, reading, crafts and her family. She is an active member of the Southside Rotary.

Margaret A. Arriaga, Physical Therapist Assistant (PTA)

Margaret graduated in 1977 from the University of Texas Medical Branch School of Allied Health Sciences/Galveston College with an Associate of Applied Science. She is a dedicated, motivated and skilled PTA with over 40 years of healthcare experience and expertise in a variety of settings including acute care in hospital, home health, outpatient musculoskeletal, and outpatient orthopedics. She performs patient treatments under the general supervision of the Physical Therapist. She specializes in orthopedic spine problems, osteoporosis and women’s health. She enjoys reading therapy journals and attending continuing education classes to keep up-to-date with current evidence based practices. She belongs to the Sports Medicine, Women’s and Geriatric sections of the American Physical Therapy Association. She enjoys educating and improving peoples’ quality of life.

She has lived in Corpus Christi, Texas for over 40 years. Margaret enjoys camping, hiking, biking, traveling and spending time with her 3 sons and grandchildren.

Claire Buendia, Physical Therapist Assistant (PTA)

Claire has been a licensed Physical Therapist Assistant since 1995 receiving her degree from Laredo Community College. She grew up in Sinton and now resides in Portland. She enjoys spending time with her family and going to sporting events of all kinds. Claire is married and has a daughter and 2 stepsons.

Brigitte M. Willott, CFO/ Practice Administrator

Brigitte grew up in Portland, Texas where she and her family reside today. She graduated from Texas A&M University Corpus Christi in 1998 with a Bachelor of Business Administration – Accounting Degree. She went on to pursue her MBA from TAMU-CC and graduated in 2017. She has worked in various industries to include HVAC, automotive, insurance and healthcare where she has been since 2001. She enjoys the ever changing world of healthcare and the challenges it presents. Her current roll as CFO of Affiliated Therapy Group Practice, Inc. keeps her motivated and challenged to keep the company on the right track.

She is married to a Portland Firefighter and has two wonderful children that keep her busy outside of work. She enjoys traveling, visiting her mom in the Cayman Islands, and being with friends, crossfit, hunting, and mostly being with her family.

Kim Kots-Business Office Manager

Born and raised in Iowa and has lived in Corpus Christi, Texas since 1984. Kim has worked in the business office of several physical therapists during the time she has lived here. Most of her experience has been in filing insurance claims and appeals, but is more than happy to help our patients with their other insurance questions.

She graduated with her Associate in Applied Science degree in Accounting at Del Mar College in December 2007. She is married and has one son. Kim enjoys reading, Sudoku puzzles and walking/exercising. She is also active as a promoter for Thrive (Le-Vel).

Marissa Guerrero – Receptionist

Born and raised in Corpus Christi, Texas. In 2015, she started working in collections and then was promoted to front office specialist. It is her job to make the patients and their families feel welcome and comfortable during their time in the clinic. She will be more than happy to help with scheduling appointments, verifying insurance benefits and answering any questions that you may have during your treatment duration.

Marissa is married to her high school sweetheart and has 3 children. They are big supporters of Moody baseball and football.

Irma Garcia – Tech

Born and raised in Corpus Christi, Texas. She is a graduate of Richard King High School and is happily married. She started her employment with AThGP in 2015. The majority of her career has been as professional picture framer, but the common thread and passion has always been helping people.

Her desire was developed through her personal experience caring for her elderly parents in particular her mother who suffered from muscular dystrophy. Irma greets everyone with a smile and loves her job. She wears many hats and no task is off limits.