​Support Team

The Nicholson Clinic offers support from an entire staff of dieticians, as well as other physical and mental health professionals – all to help patients achieve their weight loss goals and live a happier, healthier life. You will probably have some questions about the surgery; please feel free to contact us with questions or concerns. We look forward to answering any questions you may have and welcome you to our program.

Medical Team

Nicholson Clinic Physician Assistant

Rick Fisher, PA-C
Physician Assistant

Nicholson Clinic Physician Assistant

Preethi George, PA-C
Physician Assistant

Nurse Educator

Sheri Sellars, BSN, RN
Nurse Educator
(972) 426-9006

Nurse Practitioner

Gloria Gonzales, RN, APN
Nurse Practitioner
(214) 919-0786

Triage Nurse

Kelly Ray, RN
Triage Nurse
(972) 646-8001

Nurse Practitioner

Kristy Jennings, RN, NP
Nurse Practitioner

Support Team

Denise Cleere
Business Office Manager
(214) 440-3007
Josie Segovia, MA
Pre-Op Testing Coordinator
(972) 432-4713
Silvia Quiroz, MA
Patient Care Advocate
(972) 432-6821
Jordan Mitchell
Patient Care Advocate
(214) 785-6888
Sherri Creech
Patient Care Advocate
(972) 426-9011
Jessica James
Sleep Study Coordinator
(972) 426-9003
Lisa Carney
Surgery Scheduler
(972) 494-1669
Rachel Galloway
Scheduler (EGD’s)
(214) 919-0788
Billing Department
(214) 919-0785


Jay Ashmore, PhD
Clinical Psychologist
(469) 814-4850
Steven Patrick, PsyD
Clinical Psychologist
(972) 934-1485
PsyMed, Inc.
(214) 348‐5557
Alison Glezen, PhD
Venette Westhoven, PhD
Sat Khalsa, PhD
Robin Binnig, PhD
Lili Haener, LCSW
Dianne Chumley, LPC
Ericka Brothers, PsyD


Amber Odom, RD/LD
8080 Independence Parkway,
Suite 200
Plano, Texas 75025
(972) 596-9511
Melanie Wilder, RD/LD
5425 W. Spring Creek Parkway
Suite 200
Plano, Texas 75024
(972) 599-9600
PsyMed, Inc.
(214) 348-5557
1708 Coit Road, Suite 150
Plano, Texas 75075
8140 Walnut Hill Lane, Suite 308
Dallas, Texas 75231
Jenny Duke, RDN, LD
Jennifer Neily, MS, RDN, LD
Merlene Phillips, CNC


Cottonwood Cardiology
(972) 607-2525
Legacy Heart Center
(469) 800-6300


Dr. Harry Sarles, Dr. Mark Miller, Dr. Bilal Khan & Dr. Kristie Blank
Digestive Health Associates of TX, PA
(972) 771-2222

Plastic Surgery

Dr. Richard Ha
Dallas Plastic Surgery Institute
(214) 818-0935
Dr. Matthew Trovato
(214) 827-2873
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