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5 providers
Availability last updated 04/03/2026
Medical School: University of Minnesota Medical School – Minneapolis, MN
Internal Medicine: Gundersen Lutheran – La Crosse, WI
Diagnostic Radiology: Mayo Clinic – Rochester, MN
Interventional Radiology: Johns Hopkins Medicine – Baltimore, MD
American Board of Radiology 2018
Allen Swanson, MD, works as a vascular and interventional radiologist at RIA Endovascular. Dr. Swanson sees patients at the office in Windsor, Colorado.
As a college student, Dr. Swanson became interested in the link between mind and body after taking courses in genetics and psychology. He completed premed courses and a degree in psychology at Northwestern University in Evanston, Illinois. He attended the University of Minnesota Medical School, where he studied radiology and graduated with his medical degree.
Dr. Swanson completed an internship in internal medicine at Gundersen Lutheran in La Crosse, Wisconsin, and a diagnostic radiology residency at the Mayo Clinic in Rochester, Minneapolis. He then did a fellowship in interventional radiology at Johns Hopkins Medicine of Baltimore, Maryland.
Board certified by the American Board of Radiology, Dr. Swanson has co-authored and published articles on current radiology techniques, global practice, and humanitarian teleradiology.
At RIA Endovascular, Dr. Swanson utilizes his background in imaging to perform minimally invasive procedures. His techniques avoid many risks of surgery and are an option for patients who can’t have surgery. He collaborates with other physicians, nurses, and technicians to maintain a high standard of patient care.
Dr. Swanson travels for international medical volunteering and spends time with his family in the beauty of Colorado’s natural parks.
Dr. Allen Swanson, DO
Internist
1220 W Ash St
Suite B
Windsor, CO 80550
Medical School: Pennsylvania State University College of Medicine – Hershey, PA
Internal Medicine: Pennsylvania State University College of Medicine – Hershey, PA
Milton S. Hershey Medical Center – Hershey, PA
Interventional Radiology: Mayo Clinic Hospital – Jacksonville, FL
Ray Bradford, MD, is a board-certified vascular and interventional radiologist in Northern Colorado. Dr. Bradford sees patients at RIA Endovascular in Windsor, Colorado.
He pursued medical school at the Pennsylvania State University College of Medicine in Hershey, Pennsylvania, followed by an internship in Internal Medicine also at the Pennsylvania State University College of Medicine, and his residency at Milton S. Hershey Medical Center also in Hershey.
He completed his fellowship in Interventional Radiology at the Mayo Clinic Hospital in Jacksonville, Florida.
Dr. Bradford has contributed to many presentations and publications, including:
At present, Dr. Bradford is devoted to providing all his patients with high-quality, compassionate, and individualized care at RIA Endovascular.
Dr. Ray Bradford, MD
Radiologist
1220 W Ash St
Suite B
Windsor, CO 80550
Ida Rastegar graduated from Yale University and earned her M.D. at Emory University in Atlanta. She completed her residency in obstetrics and gynecology and went on to join the faculty at UCLA for several years. After moving to Boulder, CO with her husband and three children, she took on the role of office manager for Rinnova. She is excited about some of the newer treatments at Rinnova such as Cellfina cellulite treatment and Halo. With her experience in OB/GYN she is thrilled to introduce patients to the newest vaginal rejuvenation treatment offered, diVa. When she is not at Rinnova, she spends time with her children and her Yorkie, Nutmeg. She loves yoga, cooking, and exploring new restaurants around town.
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Dr. Ida Rastegar
OB-GYN
2600 30th St
Suite 100
Boulder, CO 80301
Michael K. Cavanagh, MD joined Westmed Family HealthCare. He has a special interest in Sports Medicine and Wilderness Medicine. He is Board Certified. During his leisure time, Dr. Cavanagh enjoys running, cycling and snowboarding. Originally from Connecticut, he is married with two children.
"My primary goal as a physician is excellence in the care I provide. My philosophy is to treat my patients as a whole person, not just treating an illness.”
Specialty: Family Practice
In practice at WMFH: 1996
Education
Undergraduate: Drake University 1983 -1986
Medical School
University of Iowa 1990 -1993
Residency: University of Connecticut 1993 -1996
Board Certifications/Associations
American Board of Family Physicians, Board Certified 1993
American Academy of Family Physicians
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Dr. Michael Cavanagh, MD
Family Physician
12201 Pecos St.
Suite 500
Westminster, CO 80234
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