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Physicians// All three of our excellent Nephrologists are Board Certified in the specialty of Kidney Diseases (NEPHROLOGY) and actively manage the dialysis programs by rotating as the Medical Directors in the outpatient dialysis units. 

Leslie Hamlett D.O | 


Following her 4 years at Southwest Missouri State University in Springfield, Missouri, Dr. Hamlett completed her Doctor of Osteopathic Medical degree at Kirksville College in Kirksville, Missouri.  Moving on to her Internal Medicine training at OSU Medical Center in Tulsa, Oklahoma and then completing her Nephrology Fellowship at Oklahoma University in Oklahoma City in 2007.  Dr. Hamlett has been recognized as the “Attending of the Year” at Freeman Health Systems in 2005 and 2011, as well as receiving the “Edward’s Award” for Internal Medicine Resident in 200 and the “Outstanding Intern of the Year” in 1999 from Tulsa Regional Medical Center.  In addition to work at Freeman Hospital, Dr. Hamlett has worked at the Veterans Hospital in Oklahoma City.


Mateen Nagaria , M.D. | ​


Ranking among the TOP 10 Students for his 5 years at The AGA Khan University Medical College in Pakistan, graduating with a Bachelor of Medicine and a Bachelor of Surgery, was just one of the many honors Dr. Nagaria has achieved during his medical training.   He was also awarded the GOLD MEDAL for being in the top 10 medical students in the Nation conducted by the Pakistan Medical Association.   He received his Internal Medicine training at Westchester Medical Center, University Hospital of New York, NY, and University of Texas Health Science Center in Houston, TX.    Nephrology Fellowship was completed in 2002 at the University of Kansas Medical Center in Kansas City, KS.   Receiving an award from the Department of Veterans Affairs for his “Exceptional Efforts and Contributions to Nephrology Section” in 2007 and the “Freeman Best Award” for Physician Care in 2009. 


Aleta Greathouse, M.D. | 

After graduating with a degree in Biology and Psychology from Southwest Missouri State University in Springfield, Missouri, Dr. Greathouse graduated as a Doctor of Medicine from University of Kansas Medical School, Kansas City, Kansas.  She completed her Internal Medicine and Nephrology specialty fellowships at KU Medical School as well and has been practicing solely in the field of Nephrology and Dialysis since 1999.  

Patient Testimonials:


I appreciate the Heartland facility for so many reasons. The location is a major item for me, living in CArthage, travel especially in the winter is a major issue. The nurses are excellant and having one special person each visit is a big plus. The know ones issues well so there are few surprises.  D.E. 2014


Heartland Kidney Center is by far one of the best units I have been to . The staff of nurses and techs are very caring to every patient here. Even the doctors are the best around and truly care for us as people not just as patients.  Danielle Thomas 2014


I have been to coming Heartland for three years. They make you feel good. They treat you like a real person not like a patient. I have had the same nurse for 3 years now and she knows what is going on with me always. I would tell anyone if you have to have dialysis come to Heartland. K. Wayne 2014



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