Meet Your Care Providers

Osaf Ahmed, M.D.

Osaf Ahmed, M.D.

~ Internal Medicine ~ Dr. Ahmed is a board certified internal medicine physician, treating patients just entering adulthood to those in their senior years. He graduated in 1987 from King Edward Medical College in Pakistan and completed his residency in internal medicine in 1999 at Staten Island University Hospital, Staten… Read More »


Sandy Albinger, DNP, FNP

Sandy Albinger, DNP, FNP

~ OB/GYN ~ Sandy Albinger, DNP, FNP has joined Summit Healthcare’s Obstetrics and Gynecology team as a board certified Family Nurse Practitioner by ANCC. Sandy Albinger, DNP, FNP obtained her Bachelors of Science Nursing (BSN) from Viterbo University and her Masters of Science in Nursing from the University of Wisconsin.… Read More »


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Rachel Armstrong, CPNP

Rachel Armstrong is board certified in Pediatric Nursing. She received her Bachelor’s in Nursing from Arizona State University and her Masters in Nursing from Arizona State University. Rachel also received Post Master’s in Child and Adolescent Mental Health from Arizona State University. Prior to becoming a Pediatric Nurse Practitioner in… Read More »


Imran Ata, M.D.

Imran Ata, M.D.

~ Cardiology ~ Dr. Ata received his medical degree from Nishtar Medical College, Multan, Pakistan in 1985 and then completed his internship in Internal Medicine at Nishtar Medical College. He then joined the National Institute of Cardiovascular Diseases in Karachi, Pakistan and spent 7 years at the institute doing research… Read More »


Bentley Garrett

Garrett Bentley, D.O.

~ Family Medicine ~ Garrett Bentley joined the Active Medical Staff at Summit Healthcare in 2016. He completed his Undergraduate program at Utah State University in Logan, Utah in 2009, the medical school education at Des Moines University in Iowa in 2013, then rounded out his education with a Residency… Read More »


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Curtis Birdno, PA-C

~ Family Medicine ~ Curtis Birdno joined the Active Medical Staff at Summit Healthcare in 2016. He graduated from the University of Iowa with a Masters in P.A. studies in 2009. Curtis always desired to work in healthcare, it has been a passion of his along with science and the… Read More »


Aaron Bornstein, M.D.

Aaron Bornstein, M.D.

~ Family Medicine ~ Dr. Bornstein is a family medicine physician who enjoys treating patients of all ages. He received his medical degree from the University of Texas HSC, San Antonio, Texas. While stationed in the United States Army at William Beaumont Army Medical Center, Dr. Bornstein completed his Flex… Read More »


Chad Brimhall, M.D.

Chad B. Brimhall, M.D.

~ Family Medicine ~ Dr. Brimhall is a family medicine physician who enjoys treating patients of all ages. He received his medical degree from the Ross University School of Medicine and completed his Residency at Good Samaritan Family Medicine Residency. Dr. Brimhall was inspired to choose family medicine as a… Read More »


Darrell Brimhall, M.D.

Darrell Brimhall, M.D.

~ Family Medicine ~ Dr. Brimhall is a member of the Active Medical Staff at Summit Healthcare. Dr. Brimhall attended the University of Arizona College of Medicine and completed his internship and residency at Phoenix Baptist Family Medicine Program. His interest in health, illness, and love of the area began… Read More »


Chad C. Chesley, M.D.

Chad C. Chesley, M.D.

~ Urology ~ Dr. Chesley was born in Little Rock, Arkansas and raised in Colorado. He graduated from Colorado College in 1990 with a B.S. in Biology and attended medical school at the St. Louis University School of Medicine. He then completed a internship in general surgery at the Naval… Read More »