Nephrology Associates, P.C.

Center Information

Douglas R. Linfert, M.D.
Director of Research
Nephrology Associates, P.C.
Clinical Research Services
28 White Bridge Road, Suite 300
Nashville, TN 37205

Currently Enrolling Trials

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Therapeutic Areas

Hepatology (Liver, Pancreatic, Gall Bladder)


We are the largest renal care provider in Nashville, Tennessee and in a surrounding sixty mile radius serving fourteen counties. Our twenty-eight (28) Nephrologists, eight (8) Nurse Practitioners, and one (1) Physician Assistant care for 1,500 hemodialysis and 200 peritoneal dialysis patients in more than 20 outpatient clinics. The physicians of Nephrology Associates have founded two national dialysis companies: Rencorp and National Nephrology Associates. In addition, there are over 15,000 active patients followed regularly in our practice with various combinations of renal disease, hypertension, and diabetes. We have access to and working relationships with multiple dialysis companies. We are also affiliated with two renal transplant centers in the Nashville area.

We are committed to the efficient performance of Phase II through IV clinical trials by providing rapid enrollment, timely and accurate data recording, and most importantly, the highest quality of patient care available. We have a completely computerized medical records system, facilitating tracking of diagnoses, medications, and laboratory studies. In addition, we have a standard laboratory refrigerator and a (-20°) freezer dedicated solely for the purpose of storing research lab specimens.

Our Clinical Research Staff are experienced in maintaining ethical standards, regulatory documents, negotiating budgets, accurate completion of Case Report Forms, and Pharmaceutical dispensing and accountability.

We are interested in participating in clinical trials of pharmaceutical products and/or medical devices related to renal disease, dialysis, dialysis access, hypertension, renal transplant, diabetes, or related conditions and products.


We have over 15 years of Phase I-IV clinical research experience and specialize in the following areas of Nephrology:

  • Chronic Renal Failure
  • End Stage Renal Disease
  • Glomerulonephritis
  • Hemodialysis
  • Peritoneal Dialysis
  • Hypertension
  • Diabetic Nephropathy
  • Anemia
  • Polycystic Kidney Disease
  • Hyperphosphatemia
  • Secondary Hyperparathyroidism
  • Vitamin D deficiency

Previous Clients:

Nephrology Associates is dedicated to serving clients who are leaders in the pharmaceutical, CRO and biotechnology industries. Our previous clients include:

  • Abbott Laboratories
  • AdMag
  • Affymax
  • Akebia Therapeutics
  • Alexion Pharmaceuticals
  • Amgen, Inc.
  • Ardelyx
  • Bayer
  • BioStratum
  • Braintree
  • Bristol-Myers Squibb
  • Celgene
  • Discovery Therapeutics
  • Deltanoid Therapeutics
  • Dynavax Technologies
  • Exelixis
  • FibroGen
  • GlaxoSmithKline
  • Genzyme
  • Hilltop Research
  • Hoffmann-La Roche
  • Keryx
  • Kureha
  • Luitpold
  • Mitsubishi Pharma
  • NephroGenex
  • Novo Nordisk
  • OPKO Holding II, (formerly Cytochroma)
  • Ortho-Bio-Tech
  • Otsuka
  • Pfizer
  • Phenomix
  • Phosphate Therapeutics
  • R&D Laboratories
  • Reata Pharmaceuticals
  • Rockwell Medical
  • Shire Laboratories
  • Shield Therapeutics
  • Speedel Pharma
  • Vifor


Our main office is conveniently located twenty minutes from the Nashville International Airport. There is a conference room and extra office space for visiting monitors. Our practice utilizes a comprehensive electronic charting system. We perform EKG’s, urinalysis, and phlebotomy with blood tests being sent out to any of several available laboratories. In the same building is a large private radiology group, which can perform most commonly available radiology tests including CT scans and MRI’s. The office is located in a safe, central part of the city convenient to major interstate expressways, hospitals, restaurants, and shopping.


Douglas R. Linfert, M.D.
Director of Research
Area of Expertise: Nephrology and Hypertension
Nephrology Education and Training: Johns Hopkins Hospital (Baltimore, MD)

James C. Wilbeck, M.D.
Area of Expertise: Nephrology and Hypertension
Nephrology Education and Training: Vanderbilt University Medical Center (Nashville, TN)

Hany Rezk, M.D.
Area of Expertise: Nephrology and Hypertension, Interventional Nephrology Nephrology Education and Training: University of Alabama at Birminham (Birmingham, AL)

Jyotheen S. Karam, M.D.
Area of Expertise: Nephrology and Hypertension, Interventional Nephrology
Nephrology Education and Training: State University of New York at Buffalo (Buffalo, NY)

Ranjan Chanda, M.D.
Area of Expertise: Nephrology, Hypertension, and Renal Transplant
Nephrology Education and Training: Baylor University Medical Center (Dallas, TX), Transplant: University of California (San Francisco, CA)

Ashish Soni, M.D.
Area of Expertise: Nephrology, Hypertension, and Interventional Nephrology
Nephrology Education and Training: East Carolina University Brody School of Medicine (Greenville, NC)

Jonelle Currie, ANP-C
Area of Expertise: Nephrology and Hypertension
Education and Training: Vanderbilt University Medical Center (Nashville, TN)


Jonelle Currie, RN, ANP-C
Clinical Research Coordinator
Experience includes Phase II-Phase IV clinical trials as both a study coordinator and sub-investigator for 2 years. She also sees patients as a nurse practitioner for the physician practice as well as rounding in the dialysis clinics.
Voice Mail: 615-354-2447

Jennifer Giese
Research Administrator
Experience includes detailed case report form completion, medical record collection, budgeting, organizing Phase II-IV clinical trials, and research administration.
Voice Mail: 615-354-2408


Nephrology Associates of Nashville has a database of over 1,500 hemodialysis patients, over 200 peritoneal dialysis and over 15,000 patients with various combinations of chronic renal failure, hypertension and diabetes.

Contact Center

If you are interested in contacting this center to discuss clinical trials, please complete and send the email form below. A representative from the research center will then follow up with you.