Gerald Parker, DO

Gerald Parker, DO, is an osteopathic physician who has been practicing preventive medicine for over 38 years. Serving the Amarillo, Texas, community at Doctors Clinic, Dr. Parker passionately brings his expertise and has experience in treating adult patients of all ages with both holistic and medicinal treatment options.

Dr. Parker received his undergraduate degree from Western Washington University in Washington and went on to medical school at Kirksville College of Osteopathic Medicine and Surgery in Missouri. He received his Doctorate of Osteopathic Medicine and completed his internship at Art Centre Hospital in Detroit, Michigan. He holds a medical license in Texas, New Mexico, and Nebraska.

Dr. Parker is proud to hold a number of appointments, including president of the Southwest Academy of Preventive Medicine, co-director of the Southwest Institute of Preventive Medicine, and a chair member of both the International Academy of Metabology and Medical Advisory Committee, Health Freedom Council.

Dr. Parker has had ample training in the field of stem cell therapy and completed module I and II workshops by the American Academy of Stem Cell Physicians. He is a member of various organizations, including the American Osteopathic Association, American Osteopathic College of Pain Management and Sclerotherapy, American Academy of Anti-Aging Medicine, and American College of Regenerative Medicine.

Dr. Parker has received recognition as a Physician of the Year by the National Republican Congressional Committee’s Physician’s Advisory Board and is on Marquis’ “Who’s Who in the World” and “Who’s Who in Medicine” list. Dr. Parker has shared his expertise on TV shows, such as “The Today Show,” and “That’s Incredible.”

Cassandra Whitney, FNP

She is a Family Nurse Practitioner who has been with the practice for over 20 years. She received her undergraduate training from Texas Tech University and West Texas A&M University. Her graduate studies were through Western University of Health Sciences in Pomona, CA with local preceptors Richard Chandler, D.O. and John T. Taylor, D.O. Her certification is through ANCC. She’s held memberships with American Nurses Association, American College of Nurse Practitioners, Texas Nurse Practitioners, Sigma Theta Tau International, and the Panhandle Nurse Practitioner Association.

She has also completed course training in Prolotherapy and Regenerative Medicine.