All Margolin, Keinarth & Alberda, MD, PA maintain the highest levels of accreditation and pursue ongoing education to stay abreast of the latest trends in the medical field. Read on to learn more about our staff's experience and training.

  • Paul Keinarth, M.D.

    Dr. Keinarth is a graduate of The University of Texas at Austin’s Plan II Honors Program, and the UT Health Science Center at San Antonio. He completed his Internship and Residency in Family Medicine at Brackenridge Hospital in Austin. He has been in private practice in Austin since 1990 and served as Chief of Family Medicine at Seton Medical Center Austin.

    Dr. Keinarth co-founded the Stress Reduction Clinic where he taught Mindfulness Based Meditation for more than sixteen years. He has received numerous awards including the Patient’s Choice Award, America’s Top Doctors, Best Doctors in America and Super Doctors of Texas.

    He is married with two children and three grandchildren, and he enjoys playing the piano and writing songs. He has recorded an album of his original compositions

    Hall of Fame

  • Kelly Alberda, M.D.

    Hello! I’m Kelly Alberda MD and I am proud to be a Family Physician, a specialty dedicated to primary care. I graduated University of Colorado School of Medicine in 2000 and completed my Family Medicine Residency training in Billings, Montana in 2003. At that time, I moved with my young family to Austin for an additional one-year fellowship in obstetrics and women’s health.

    After my training, I started as a Faculty Member of the Family Medicine Residency training program in Austin. My practice focused on family medicine, obstetrics, newborn care, pediatrics, and teaching these skills to future family physicians.

    In 2019, I joined Drs. Margolin and Keinarth and while I no longer offer obstetric services, I continue to provide adult and pediatric primary care. I have experience in women’s health, including contraception services and procedures, such as Nexplanon and IUDs; adolescent health; chronic disease management; joint injections, as well as most common illnesses.

    My philosophy in medicine, as in life, is very down-to-earth. I hope to provide care that is efficient, based on strong evidence, and value-oriented. I enjoy the opportunity to listen to my patient’s priorities and tailor treatment plans to reach goals of care.

    In addition to my civilian practice, I joined the Air National Guard in 2000 and now serve as a Flight Surgeon for the Texas National Guard one weekend a month. My base is the 147th Attack Wing in Houston, Texas and I am proud to serve our state, our country, and my fellow service-members as an Air Force Physician.

    North Austin is home to my family. My wife and I enjoy seeing our daughters become young adults as they are moving on from high school.

    We spend our free time with family and friends, traveling, or you’ll find me on my mountain bike.

  • Sarah Pierce-Bregante, P.A.-C

    Sarah earned her Bachelor of Medical Science and Physician Assistant degree from Emory University in Atlanta GA. She is board certified and a member of the AAPA and TAPA. She has been a part of our practice since spring of 1994.

    Sarah is a singer songwriter. She and, her husband, Merel, enjoy fly fishing, mountain biking, and, working on their ranch caring for the land and all of their 'fuzzy kids'.

    Go to to hear Sarah's music

  • Kristen Fletcher, MPAS,PA-C

    Kristen earned her Master of Physician Assistant Studies from Texas Tech University. Prior to TTU, she graduated Cum Laude with a Bachelor of Arts from Hardin-Simmons University in her hometown of Abilene, Texas. She is Board certified and is currently a member of Texas Academy of Physician Assistants and American Academy of Physician Assistants.

    Kristen enjoys cooking, exercising, and spending time with her friends and family, including her dog Dakota. She hopes to travel more and live life to the fullest.

  • Munira Bhaidani, MPAS, PA-C

    Munira graduated with a Master of Physician Assistant Studies from the University of Texas Southwestern Medical Center in 2006. She attended Mount Holyoke College and graduated with a Bachelor of Arts in Economics and Biology. She is a board certified Physician Assistant and a member of the American Academy of Physician Assistants.

    Munira is married and has two children. She enjoys traveling and spending time with family.

  • Steven Margolin, M.D. (Retired)

    Dr. Margolin received his degree in Medicine from Ohio State University in 1976 and did his residency training at Riverside Methodist Hospital in Columbus, Ohio. Dr. Margolin is a member of the Texas Academy of Family Physicians, the Travis County Medical Society, the Texas Medical Society and is a fellow of the American Academy of Family Physicians. He has served as Chief of Staff at Seton Medical Center and as Chairman of the Department of Family Medicine at Seton Medical Center.

    Dr. Margolin is married and has two children, Alex and Laura. He enjoys fishing.

    On July 1, 2020, after 42 years of practicing Family Medicine in Austin, Dr. Margolin retired from active practice to devote more time to his family, travel and fishing. He remains actively involved in the practice working on special projects for the group.

    Letter from Dr. Margolin about Retiring

    Hall of Fame

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