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Open Daily

Monday - Friday:
8 a.m. – 8 p.m.

10 a.m. – 6 p.m.

Sunday: Noon – 6 p.m.


Altoona, IA
3770 8th St. SW
(515) 645-9905

Johnston, IA
8779 Northpark Drive
(515) 333-5090

West Des Moines, IA
640 S. 50th St., Ste. 1100
(515) 471-1860

Physicians and Staff

Our highly skilled physicians and staff will give you the care you need—so you can get back to your life. Each of our physicians is board-certified, and our nurse practitioners and physician assistants are experienced in emergency medicine and urgent care.

We’re pleased to introduce:

Anna Holzer, MD

Anna Holzer, MD
Chief Medical Officer

Dr. Anna Holzer, the Chief Medical Officer for DoctorsNow, is a native of Waverly, Iowa. She received her bachelor's degree from the University of Wyoming and attended medical school at American University of the Caribbean on St. Martin. She then completed the Mercy Family Medicine Residency in Des Moines.

David G. Stilley, MD, MBA

David Stilley, MD, MBA
Vice President

Dr. David Stilley received his medical degree at the University of Minnesota in Minneapolis, Minnesota, and is board-certified in both family medicine and emergency medicine. In 2004, he received his MBA from the University of Tennessee. A commercial instrument-rated fixed wing pilot for 25 years, Dr. Stilley added his helicopter private rating and helicopter commercial ratings in 2008.

He has practiced emergency and urgent care medicine in Central Iowa since 1988 and served as the medical director for the highest-patient-volume emergency department in Iowa for many years. Dr. Stilley served as the Chief Medical Officer for DoctorsNow from 2007 until 2015, when he handed the baton to Dr. Anna Holzer. He continues to practice at DoctorsNow, providing urgent care for adults and children.

Gordon J. Bruinsma

Gordon J. Bruinsma
Director of Business Operations and Development

Gordy Bruinsma has been a health care consultant and medical business owner for the past eight years. He comes from a financial background as he is a CPA and a former commercial banker for over 17 years, as well as a real estate developer specializing in medical projects. His role at DoctorsNow is to oversee day-to-day operations.

Gordy also heads up the DoctorsNow development team that evaluates and starts up new DoctorsNow clinics around the country. He graduated from the University of Michigan and resides in Byron Center, Michigan.

Natasha Jodoin

Natasha Jodoin, ARNP

Natasha Jodoin graduated from Grand View University in Des Moines, Iowa, with her Bachelor's Degree in Nursing in 2002. After graduating, she spent her early nursing career working at Methodist Medical Center. In 2009, Natasha graduated from University of Nebraska Medical Center with her master's degree specializing as a nurse practitioner in women's health. As a nurse practitioner, Natasha was employed at an OB/GYN and family planning office. In 2015, she expanded her scope of practice by obtaining her post master's degree in family practice from Saint Louis University.

Amanda Dyvig

Amanda Dyvig, PA-C

Amanda Dyvig graduated from Des Moines University in 2002 after completing her undergraduate degree at the University of Iowa. After college, she worked in the emergency departments of three local metropolitan hospitals from 2002 through 2015.

In addition to caring for patients, Amanda serves as our Occupational Medicine Manager. In this role, she acts as a liaison between area employers, workers and DoctorsNow – helping to ensure the best care and smoothest process for our occupational medicine clients.

Elisabeth Jeffords, PA-C

Elisabeth Jeffords, PA-C

Elisabeth Jeffords brings more than 15 years of experience in healthcare, primarily in Central Iowa. Her career has spanned care in geriatrics, cardiology, emergency medicine and family practice. She received her bachelor’s degree in 2000 from Bob Jones University in Greenville, South Carolina. She went on to earn her master’s degree in Physician Assistant Studies from the University of Iowa in 2003. Through her diverse experiences, Elisabeth has found providing care for families and children to be the most enjoyable and rewarding.

Kara Buckingham, PA-C

Kara Buckingham, PA-C

Kara Buckingham earned a bachelor's degree in biology from Grand View University in 2009. In 2011, she graduated from Des Moines University with a master's degree in physician assistant studies. Prior to joining DoctorsNow in 2012, Kara worked as a physician assistant for a local orthopedic practice. She has also worked in the emergency departments of several major Central Iowa hospitals.

Kylon Schmitt, PA-C

Kylon Schmitt, PA-C

Kylon earned his undergraduate degree from the University of Iowa in 1973 and graduated from the University of Iowa Physician Assistant Program in 1976. He practiced family medicine until 2017, when he joined DoctorsNow.