Houston Neuropsychology Group, PLLC
formerly John Largen & Associates, Inc.
1020 Holcombe Blvd., Suite 1304, Houston, TX 77030
Phone: 713-799-2818     Fax: 713-790-1454
E-mail: office@hnpgroup.com

Meet our staff
John W. Largen, Ph.D.
Dr. Largen completed his Ph.D. in clinical neuropsychology at the
University of Houston in 1980. He entered private practice in 1989. For the past 11 years, Dr. Largen has also served as
an adjunct assistant professor at the University of Houston. In this
role, he provides supervision to graduate students in clinical
neuropsychology.
Robert N. Davis, Ph.D., ABPP
Dr. Davis completed his Ph.D. in clinical psychology (neuropsychology
specialization) at the University of Houston in 2003. After completing
his clinical internship at Duke University Medical Center, he completed
a postdoctoral fellowship at the Center for Neuroscience in Media, PA.
Dr. Davis is board certified in clinical neuropsychology with the
American Board of Clinical Neuropsychology.  
Amy Gonzales, B.S.
Amy completed her bachelor’s degree in marine biology at Texas A&M
University at Galveston in 2008. She is working with us as a technician
as she applies to various Texas medical schools. Amy hopes to
eventually practice as a primary care physician for a rural community.
Rachel Trube, B.A.
Rachel received her bachelor's degree in philosophy from Rice
University. She is currently working with us as a technician. Rachel is
interested in the intersection of psychology and philosophy of mind.
La Juana Tucker
La Juana has been the office manager for John Largen & Associates
since 2000. Her background includes 23 years of experience in the
healthcare industry at all levels of service.
Pearl Secreta
Pearl is our friendly and courteous front desk administrator. She
facilitates appointment scheduling and confirmation, insurance
verification, checking in patients, and general office administration.
Tonia Dees
Tonia is our medical records scanning specialist. She also provides
support to Pearl and La Juana with general office administration.