David G. Armstrong (born February 18, 1969) is an American podiatric surgeon and researcher most widely known for his work in amputation prevention, the diabetic foot, and wound healing.

He is Distinguished Professor of Surgery with Tenure and director of the Southwestern Academic Limb Salvage Alliance (SALSA)[6] at the Keck School of Medicine of the University of Southern California and has produced more than 715 peer reviewed manuscripts and more than 120 book chapters.

[9] Additionally, it was where he became aware of the works of two influential clinician-researchers, Andrew JM Boulton, of the University of Manchester, and Paul Wilson Brand, of the Hansen's Disease Center in Carville, Louisiana.

Days before graduation, he was handed a letter inviting him to apply for a fellowship at the University of Texas Health Science Center at San Antonio.

The two researchers credit Harkless for providing the environment for this to occur, as there had previously never existed a full-time academic podiatry faculty of this kind in an American medical school.

Following Lavery's departure to develop a private nationwide diabetic foot program, Armstrong remained prolific, but soon grew interested in new challenges.

This meeting, the largest annual diabetic foot gathering in the world, hosts delegates from 50 countries and all 50 U.S. states in more than 10 medical and surgical disciplines.

This program produced or recruited several key members of the field including Stephanie C. Wu, James Wrobel, Lee C. Rogers, Nicholas J. Bevilacqua, Bijan Najafi, Manish Bharara and Vickie Driver.

Armstrong, responding to his love of the Desert Southwest, the rampant diabetic epidemic there, and his long-standing friendship with renowned vascular surgeon Professor Joseph Mills, was recruited again to Tucson and the University of Arizona.

He and Mills became the first surgeons to document a real-time surgical consultation via iPhone's FaceTime[15] with their colleague (and Armstrong's former fellow), Lee C. Rogers.

In 2012, Armstrong recruited Dr. Bijan Najafi from Rosalind Franklin University to help lead a mobile health program to, as he put it, "measure how we all move through and interact with our world".

Dr. Najafi, previously at Rosalind Franklin University and Harvard, embarked on development of a broad-based program called the Interdisciplinary Consortium on Advanced Motion Performance (iCAMP).

The program, centered in the Keck School of Medicine of the University Southern California's Department of Surgery[21] but spanning a characteristically wide interdisciplinary remit, continued the well-known SALSA acronym, was now the Southwestern Academic Limb Salvage Alliance.

As part of this program, he has made efforts to develop interdisciplinary links between hospitals and clinics within the Los Angeles County Department of Health System.

Most specifically, his efforts at the world-renowned National Rehabilitation Center at Rancho Los Amigos have led to the program having Diabetic Limb Preservation taken on as a focused area of clinical and research excellence.

The founding leadership team of ALPS included the aforementioned Armstrong, Mills and Conte along with Stephanie Wu, Dean of the Scholl College of Podiatric Medicine at Rosalind Franklin University as Vice President.

That same year, he was also named the 2010 Honorary Fellow of the American College of Certified Wound Specialists as well as the inaugural recipient of the William S. Baer Award for Advances in Biosurgery/Biotherapy by the International Conference on Biotherapy.

Natalie, a Fulbright alumna (Greenland, 2021), now serves at the National Academies of Science, Engineering and Medicine and as a PhD Student at the Johns Hopkins Bloomberg School of Public Health.