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At DaVita, our mission is to provide the best nephrology career development, assistance, and job placement for our clients.


  • Profile photograph of Mark Nadar, Kidney Care Consultants, Memphis TNDr. Mark Nadar
    Kidney Care Consultants, Memphis TN
    "Starting a nephrology career is a tough one and Amy with Davita SOURCE made it an easy process. Her great listening skills, large network, reliability, attention to the small details and the ability to decipher the best opportunities in the market tailored to me, was able to lead me to the perfect job that suits my ambitions and expectations."

  • Profile photograph of Dr. Ira Strauss, Shore NephrologyDr. Ira Strauss
    Shore Nephrology
    "Our last two physician hires came to us from Amy and DaVita SOURCE. She has been a reliable and trusted resource for our practice that always exceeds our expectations. The next time we need to expand our group, we will definitely be calling Amy."

  • Profile photograph of Ethan Ko, DO, DaVita Kidney Specialist of FredericksburgDr. Ethan Ko
    DaVita Kidney Specialist of Fredericksburg
    "In the tumultuous and stressful process of job searching, Amy and Davita Source have taken out all the guesswork and have been there in guidance every step of the way from our initial face to face fellowship dinner, interview process, to the day I signed the employment contract to my dream job."

  • Profile photograph of Mark Belz, M.D.Mark Belz, M.D.
    Iowa Kidney Physicians
    "We have been working with DaVita Source (specifically Tammy Elzy) for many years and have recruited one of our current shareholders in our practice as well as 2 incoming transplant trained nephrologists this coming year directly through DaVita Source."

  • Profile photograph of Sumit Kumar, MD, MPH, FASN, FACP, Texas Kidney InstituteSumit Kumar, MD, MPH, FASN, FACP
    Texas Kidney Institute
    "Tammy has been absolutely stellar. She has taken the time to understand the specific nuances of our market; our practice and it's strategy; the opportunities presented to us and the challenges before us. This has allowed her to introduce us to outstanding candidates who will fit the mold and grow and feel they have made the right choice."

  • Profile photograph of Peter Donald, Board Chairman, Nephrology Associates Medical Group, Riverside CAPeter Donald, Board Chairman
    Nephrology Associates Medical Group, Riverside CA
    "I have worked with several physician recruiting agencies in my career. Tammy Elzy has been by far the most knowledgeable and best recruiter with whom I have worked. She has the ability to discern the likely hood of any doctor going into a practice by virtue of determining the decision maker in the family, the key decision factors, and determining what organization would be the best fit for the candidate."


Profile photograph of Tammy Elzy
Tammy Elzy
Lindstrom, MN
Senior Director of Physician Services
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Profile photograph of Amy Sabin Barrow
Amy Sabin Barrow
New York, NY
Physician Resource Territory Manager
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Profile photograph of Melissa Schares
Melissa Schares
Lindstrom, MN
Recruitment Coordinator
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Profile photograph of Bonny Fetterman
Bonny Wayman
Durango, CO
Marketing Manager
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Carissa Gita
Carissa Gita
Columbus, GA
Marketing Analyst
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Carrie Galbraith
Carrie Galbraith
Effingham, IL
Advanced Practitioner Recruiter
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Tammy Elzy

For more than a decade, she has been working with nephrology practices affiliated with DaVita and has a proven track record for success in all areas of DaVita that she has been involved with. Her experience and knowledge has assisted the DaVita SOURCE℠ team in placing more than 500 physicians over the past five years. As Senior Director of Physician Services, she oversees the DaVita SOURCE℠ team and provides physician recruitment services to DaVita-affiliated practices nationwide. Tammy covers the western half of the country and Florida.

Prior to joining DaVita SOURCE℠, Tammy was part of the DaVita Clinical Research® (DCR) team. In her first three years, she provided support to the Phase I clinical research operations. In 2001, she helped start the Site Management Organization, a national division of DCR, where she successfully launched Phase III and IV clinical trials with industry-leading biotechnology companies. She was responsible for the oversight of all clinical research trials conducted nationally within DaVita in more than 100 locations. She leveraged internal and external relationships along with strategic planning to promote growth of the organization.

She is married with one son. Her hobbies include gardening, running, biking, sports, photography and reading. Tammy's office is located in Lindstrom, Minn., where she also resides.

Amy Sabin Barrow

Amy comes to DaVita SOURCE℠ with a strong healthcare background, starting with a BA in microbiology and a Masters in health services administration from the University of Arkansas. She has expertise in a wide range of healthcare business services from nonprofit hospital development, marketing and financial administration, practice management, medicare-managed care, and large hospital system physician recruitment. Her experience and knowledge has assisted the DaVita SOURCE℠ team in building relationships with fellows and practicing physicians in the Eastern half of the Country (excluding Florida).

Amy and her husband Scott welcomed their first child, Henry Emmett, in 2012. They are both active in the theatre community and make frequent trips back to their former home in New York City where they are board members for an arts-in-education theater company. Amy's office is based in Martha's Vineyard, Massachusetts.

Melissa Schares

Melissa provides research and system support for the DaVita SOURCE℠ team. She has been with DaVita for more than 10 years.

Prior to DaVita SOURCE℠, Melissa worked for DaVita Clinical Research (DCR) and the Site Management Organization (SMO) division as the regulatory affairs coordinator. She helped increase revenue for two consecutive years, and she assisted in the site placement and management for all clinical trials conducted in more than 100 DaVita locations. She also provided and supervised trial documents, certifications for research staff, Sponsor and IRB, to ensure that all trials met federal and international requirements for medical research. In addition, she was the administrator for DCR's internal corporate grant program.

Her office is located in Lindstrom, Minnesota. She is a proud mother of one, and an avid lover of music and photography.

Michelle C. Steinbeck

She joined DaVita in 2006 with Nephrology Practice Solutions as a business analyst for NPS's summit groups where she focused on market research and branding efforts. As of early 2008, her focus has been with DaVita SOURCE℠ where she provides support on marketing campaigns, multiple nephrology-based conferences (such as the annual ASN conference) and works directly with nephrology fellowship programs across the country on educational and career development for nephrology fellows. She also is the acting liaison for DaVita Kidney Specialists physicians throughout the country.

She is married and currently resides in Los Angeles, CA. When not working, Michelle enjoys time at the beach with her dog, practicing yoga, and spending time with family and friends.

Bonny Wayman

Bonny Wayman is the Marketing Manager for NPS and is responsible for all marketing efforts for Nephrology Practice Solutions, DaVita SOURCE and multiple nephrology practices across the US. She has been with NPS since 2014 and was promoted from an analyst to marketing manager in 2015. Bonny completed her Master’s in Business Administration with an emphasis in marketing from the University of Denver in 2013 and her Bachelor of Science in Business Administration from University of Denver in 2011. When she isn’t working you can find Bonny outside riding her horses, gardening or hiking with her husband and dog.

Carissa Gita

Carissa Gita is the Marketing Analyst for Nephrology Practice Solutions. Before joining SOURCE Carissa held various roles within DaVita Accounts Payable and Army Child, Youth and School Services. She received her Bachelor’s Degree in Organizational and Project Management from Colorado Christian University and is currently working on her Master’s Degree.

Carissa and her husband Marc welcomed their daughter Leilah in 2014 and their dog Stitch in 2018. When not working, Carissa can be found spending time with family, crafting/designing, planning events or exploring new places. She also serves as the National Director of Communications for Lambda Phi Xi Multicultural Sorority, Inc.

Carrie Galbraith

Before joining SOURCE, Carrie worked ten years as the Director of Recruitment for a non-profit hospital association/network. She provided medical provider recruitment support to the 52 member hospitals. Carrie provided support services and consultation in recruitment marketing, candidate sourcing, immigration, loan repayment, health professional shortage areas, rural recruitment, recruitment trends, contracts, on boarding and retention. She also has five years of health system experience providing full cycle recruitment and retention for the health system and 100 employed medical providers. She graduated from University of Arkansas in 1997 with a degree Business Administration with an emphasis in Marketing. She holds her FASPR recruiter certification designation with the Association of Staff Physician Recruiters (ASPR).

When not working, Carrie spends her time with her husband, three children, and their dog Sparky. She is also active in her hometown serving as a Village Board Trustee, 4th of July Committee member, PTO member, child mentor, and community historical committee member. Carrie is a past President, Vice President, and Conference Committee Chair of the Illinois Staff Physician Recruiters (ISPR), and is currently serving on the national ASPR Board of Directors. Carrie enjoys working out, reading, genealogy, outdoor activities, and spending time with family.


We're a purposefully small,
highly driven team
that takes pride in our work.
Each teammate contributes something unique.