Graduate Faculty


Dr. Kathleen Rayman

Kathleen Rayman, PhD, RN

Director of Graduate Programs & Associate Professor
207 Nicks Hall
Phone: 423-439-5626
Fax: 423-439-4100

Dr. Rayman engages in qualitative and mixed methods research on self-management of  diabetes in women. She was honored with the College of Nursing Joyce Basham Faculty Research Fellowship from 2004-2007.

Support Staff

Jeannie Haehner

Jeannie Haehner

Executive Aide
206 Nicks Hall
Phone: 423-439-5626
Fax: 423-439-4100

Ronnie Mann

Ronald Mann

Audiovisual Specialist
249 Nicks Hall
Phone: 423-439-4601
Fax: 423-439-4100


Michelle Arns

Michelle Arns, DNP, MSN, FNP-BC

Assistant Professor
254 Nicks Hall
Phone: 423-439-4065
Fax: 423-439-4100


Dr. Sally Blowers

Sally Blowers, PhD, RN

Associate Professor
206 Nicks Hall
Phone: 423-439-5626
Fax: 423-439-4100
Dr. Blowers is co-principal investigator for the NURSE Center, funded by DHHS, HRSA, Division of Nursing. The NURSE Center provides mentoring, tutoring and student support services. She works with at-risk students and studies students' emic perspective of nursing and nursing knowledge through her classroom research.

Nancy Cameron

Nancy Cameron, DNP, RN, CNAA

Assistant Professor & RODP Coordinator
210 Nicks Hall
Phone: 423-439-4874
Fax: 423-439-4100


Pic coming soon

Sandy Diffenderfer, PhD, MSN, RN

Assistant Professor & Clinical Coordinator
295 Nicks Hall
Phone: 423-439-4517
Fax: 423-439-4050


Dr. Janne Dunham-Taylor

Janne Dunham-Taylor, PhD, RN

Professor & Coordinator Admin/Health Care Management
2-303 Nicks Hall
Phone: 423-439-4494
Fax: 423-439-4100
Dr. Dunham-Taylor is the author of Health Care Financial Management for Nurse Mangers: Merging the Heart with the Dollar and Health Care Financial Management for Nurse Managers: Applications in Hospitals, Long-Term Care, Ambulatory Care, and Home Care (2006). She coordinates and teaches nursing administration and leadership courses at the graduate level and education courses in the PhD program.

Dr. Joellen Edwards

Joellen Edwards, PhD, RN, FAAN

Associate Dean for Research & Professor
105 Nicks Hall
Phone: 423-439-4082
Fax: 423-439-5780
Dr. Edwards' current program of research centers on the health status and clinical outcomes of rural populations. She addresses health policy implications and health care system issues as an integral part of her work.

Dr. Masoud Ghaffari

Masoud Ghaffari, PhD, RN, MT

Associate Professor
200 Nicks Hall
Phone: 423-439-4512
Fax: 423-439-4100
Dr. Ghaffari maintains an active qualitative research program aimed at understanding and promoting students' academic and life success. He has developed, tested and published a conceptual model, the Trinity Paradigm of Intelligence, which provides a guiding framework for his work.

Lisa Haddad

Lisa Haddad, PhD, RN

Assistant Professor
204 Nicks Hall
Phone: 423-439-4510
Fax: 423-439-4100


Dr. Patricia Hayes

Patricia Hayes, PhD, RN

Associate Professor
109 Nicks Hall
Phone: 423-439-4509
Fax: 423-439-4100
Dr. Hayes studies the quality of life and health care practices among rural Appalachian elders. She recently completed a project as principal investigator on a nursing sub-award from the Department of Housing and Urban Development Senior Options Program to the Johnson City Housing Authority.

Dr. Helene Holbrook

Helene Holbrook, DNP, MSN, FNP

Assistant Professor
112 Nicks Hall
Phone: 423-439-4521
Fax: 423-439-4100


Dr. Sharon Loury

Sharon Loury, PhD, MSN, RN

Assistant Professor
256 Nicks Hall
Phone: 423-439-4057
Fax: 423-439-4050


Dr. JoAnn Marrs

Jo-Ann Marrs, EdD, RN, FNP, BC

Professor & Clinical Coordinator RODP
121 Nicks Hall
Phone: 423-439-4624
Fax: 423-439-4100
Dr. Marrs engages in scholarship around ethical issues and has published on linking nursing theory to practice. She has also published articles on background checks and moral turpitude.

Dr. Wendy Nehring

Wendy Nehring, PhD, RN, FAAN, FAAIDD

310 Nicks Hall
Phone: 423-439-7051
Fax: 423-439-4543
Dr. Nehring is internationally known as an expert in the field of intellectual disabilities in children and adolescents, and studies many aspects of the health and well-being of this unique population. A second research trajectory is in the area of effective use of simulation in nursing education.

Leigh Powers

Leigh Powers, DNP, MSN, MS, BS, APRN, PMHNP-BC

Assistant Professor
261 Nicks Hall
Phone: 423-439-4872
Fax: 423-439-4100


Dr. Susan Rasmussen

Susan Rasmussen, PhD, RN

Assistant Professor
293 Nicks Hall
Phone: 423-439-4611
Fax: 423-439-4100


Pic coming soon

Judy Rice, DNP, MSN, FNP-BC, RN

Assistant Professor
Johnson City Downtown Clinic /299 Nicks Hall
Phone: 423-926-2500/423-439-4396
Fax: 423-926-5999/423-439-4100


April Stidham

April Stidham, DNP, MSN, FNP-BC

124 Nicks Hall
Phone: 423-439-4108
Fax: 423-439-4100


Sharon Trumbley

Sharon Trumbley, MSN, WHNP

Assistant Professor
246 Nicks Hall
Phone: 423-439-4056
Fax: 423-439-4100


Dr. Patti Vanhook

Patricia Vanhook, PhD, RN, FNP, BC, FAAN

Assist. Prof. & Assoc. Dean Practice & Co-Coordinator NP Program
142 Nicks Hall
Phone: 423-439-7184
Fax: 423-439-4100
Dr. Vanhook studies the impact of stroke on the lives of survivors. Her dissertation study empirically explored and validated the concept of "comeback" from the theory of chronic illness trajectory in female Appalachian stroke survivors.

Dr. Florence Weierbach

Florence Weierbach, PhD, MSN, MPH

Assistant Professor
113 Nicks Hall
Phone: 423-439-4588
Fax: 423-439-4100