Friendly Comprehensive
Care For Adults
Call Us Today! 970-564-8730 Fax: 888-832-1367
111 North Park Street
Cortez, CO 81321

The Medical Team at Southwest Internal Medicine in Cortez

Angus McAlpin


Angus McAlpinIn 1994, Dr. McAlpin completed his BA in political science from Duke University. He was then accepted to the University of Pittsburgh School of Medicine where he would complete his Doctor of Medicine degree in 1999. He would then go on to a three-year Internal Medicine Residency at Strong Memorial Hospital, University of Rochester, NY.

After residency, he would serve at Senior Instructor in Clinical Medicine, University of Rochester School of Medicine and Dentistry, Strong Memorial Hospital, and also as a Clinical Faculty Member of the General Medicine Unit with primary responsibilities as resident preceptor in a busy inner city ambulatory clinic.
From 2003 to 2006, he continued his passion for the underserved and worked as Medical Officer for the Fort Defiance Indian Hospital, Department of Internal Medicine, Fort Defiance, Arizona. There, his duties included serving at General internist with continuity, inpatient, and critical care responsibilities at a community hospital on the Navajo Indian reservation.

Currently, he is appointed as an Internal Medicine Physician with Southwest Internal Medicine in Cortez, Colorado. There he serves as General Internist with primary care, inpatient, and critical care responsibilities.

He has also served as a Clinical Instructor in Medicine at the University of Colorado School of Medicine, University of Colorado Health Science Center since 2008. He is also an elected Fellow Member of the American College of Physician and Colorado Medical Society.

Robin Richard


Robin Page

Dr. Robin Richard is board certified in general internal medicine and an elected Fellow of the American College of Physicians. She has been providing care to adults with common and complex medical conditions in the Four Corners since 2003. She attended the University of Colorado School of Medicine and completed her residency at Exempla-St. Joseph’s Hospital in Denver where she also served as chief medical resident. She enjoys serving as a clinical instructor for the University of Colorado School of Medicine as this role allows her to introduce physicians-in-training and young physicians to the joys of practicing medicine in a rural community. As a graduate of Fort Lewis College, she returned to Southwestern Colorado because of her love of the San Juan Mountains and the surrounding landscapes of the Four Corners.

Dr. Richard strongly believes that technical expertise in one’s profession coupled with a compassionate, caring presence are essential in promoting wellness and helping people through times of illness. Her interests outside of work include skiing, mountain biking, environmental advocacy, hiking/backpacking, meditation, and drawing.

Karla Demby


Karla Demby
Karla J. Demby, M.D., F.A.C.P. has been an Internist in Cortez, Colorado since 1994. In 2000, she founded Southwest Internal Medicine as a solo practitioner and subsequently expanded the practice to include the four current partners.

Karla was raised on her family’s farm in central Kansas. She attended Bethany College in Lindsborg, Kansas, obtaining a B.A. in chemistry in 1980. She received her M.D. from the University of Kansas in 1984. Her residency training included three years at the Rockford Family Medicine Program in Rockford, Illinois from 1984 to 1987, after which she became board certified in Family Practice.

Choosing to focus on adult primary care, Dr. Demby completed an Internal Medicine Residency at St. Joseph Hospital in Denver, Colorado from 1987 to 1990, serving as chief resident her third year. She became board certified in Internal Medicine in 1990, and has recertified in 2000 and 2010.

Karla is also a certified bone densitometry interpreter and has taught ACLS for over 25 years. She is an associate clinical professor for the University of Colorado Medical School, where she has received numerous teaching awards. In 2016 she received the Laureate Award from the Colorado chapter of the American College of Physicians for her commitment to excellence in medical care and teaching. Dr. Demby has served as medical director of numerous departments at Southwest Memorial Hospital and is currently president of the Southwest Health Systems Physician Hospital Organization.

Karla is married to Dr. Brian Demby, a Radiologist, and they have three adult children: Max and twin daughters Rachel and Nicole. Karla is an avid skier and loves mogul in all shapes and sizes. She also enjoys mountain biking and hiking.

Erin Henderson


Erin Henderson, MD

Dr. Henderson received her medical degree from the University of Colorado School of Medicine in 2008, and completed her Internal Medicine residency at Saint Joseph Hospital in Denver, Colorado in 2011. During residency, Dr. Henderson did a rural health rotation at Southwest Internal Medicine, which solidified her decision to pursue a career in primary care in a rural setting. In addition to her Internal Medicine practice, Dr. Henderson serves as the medical director of Hospice of Montezuma. She and the other doctors at Southwest Internal Medicine participate in clinical teaching of medical students from the University of Colorado and residents from both the University of Colorado and Saint Joseph Hospital in Denver.

In her spare time, Dr. Henderson enjoys playing piano and spending time with her family cooking, skiing, mountain biking, and hiking.

Southwest Internal Medicine | Phone: 970-564-8730 | Fax: 888-832-1367 | |
111 North Park StreetCortez, CO 81321