Wasilla 907-373-9460 I Juneau 907-523-5003

Meet Our Providers

Profile of J. Thomas Grissom, M.D

Dr. Grissom has extensive knowledge on how to treat chronic pain patients, with over 16 years of interventional pain management experience. He is board certified in anesthesia and pain management. Dr. Grissom received his medical doctorate from the University of Washington School of Medicine, received his residency training in anesthesiology from the University of Missouri-Columbia, with a pain management fellowship in Liverpool, NY. Dr. Grissom also has additional training which allows him to do various pain procedures that no other pain physician in Alaska can perform, thus providing increased level of service to his patients. In addition to serving as the medical director of The Algone Interventional Pain Clinic, he enjoys golfing, skiing and spending time with his three sons. 

J. Thomas Grissom, M.D.

Profile of Cheryl K. Fitzgerald, PA-C

Cheryl is a certified Physician Assistant.  She has a BS degree in Health Studies from Western Michigan University and is a graduate of the Physician Assistant program at the University of Utah.  She has over 16 years of clinical experience working in various clinical settings including family practice, emergency/urgent care, preventative care, and orthopedic/fracture care.  Prior to obtaining her Physician Assistant degree, she worked for many years in radiologic technology.  Cheryl’s main focus is diagnosing and treating illness and injury in patients with chronic pain.  She believes in a multi-disciplinarian approach to pain management with the patient as the driving force.  She is skilled in treating with medication, injection therapy, and management of intrathecal pumps. 

Cheryl K. Fitzgerald, PA-C

Profile of Matthew R. Peterson, M.D

Dr. Peterson has extensive experience in treating acute & chronic pain patients. He received his undergraduate degree from the University of British Columbia, followed by his Medical Doctorate from the University of North Dakota. He completed his residency in Anesthesia as well as his fellowship in Intervention Pain Management with the University of Arizona. His special interest in pain medicine includes his dedication to providing relief to individuals with chronic and acute pain through a wide range of minimally invasive surgical and nonsurgical techniques.

Matthew R. Peterson, M.D.

Profile of Liam T Walsh, M.D

Dr. Walsh is passionate about helping patients with pain live a better quality of life.  A dedicated and caring physician, his training took place at some of the nation’s top institutions.  He earned his medical degree at Brooklyn College of Medicine, and completed both Anesthesiology residency and Interventional Pain Management fellowship at Dartmouth Medical Center.  He specializes in minimally invasive surgical techniques, radiofrequency ablation, as well as fluoroscopic- and ultrasound-guided injections.  Dr Walsh is also an accomplished free-skier, soccer player, and lover of the great outdoors.


Liam T. Walsh, M.D.


Profile of Zachary Kile, PA-C

Zachary has lived in Alaska since 1999.  He had an Independent Surgical Assist practice in Anchorage assisting in multiple specialties including general, cardiovascular, neurology and orthopedic surgery.  He obtained his education at the University of Washington Medical School.  Zachary is very excited about living and working in the Mat-Su Valley.  He brings a down-to-earth, common sense approach to medicine.  Zachary operates Mat-Su Medical Locums, a locally owned business that provides medical coverage to local clinics when they are in need of providers.  In his spare time he enjoys fishing, running and hiking in the great Alaskan outdoors.  He is also a Mount Marathon finisher.

Profile of Stephen Shortridge

Stephen was born in the Midwest but as an “Army brat” moved all over the United States and Europe.  Stephen came to Alaska in 1960, rode the Good Friday earthquake then left for a while.  He came back with his wife and first child in 1989 as a Registered Nurse and worked for 10 years in critical care and the ER.  He then went to Physician Assistant training at the University of Utah and graduated in 1996.  Since then he has practiced in family medicine, urgent care, internal medicine, and then interventional pain management.  He is passionate about family time with his wife and 2 children and boarding the big mountains of Alaska, especially on a Chugach Flyer snowboard, a local snowboarding brand of his own creation.  He also enjoys this great state’s beauty and bounty through mountain biking, photography, fishing and hunting.


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