Team holding hands in a circle

The Lotze Team


Peter M. Lotze MD, FACOG, FPMRS

Female Pelvic Medicine and Reconstructive Surgery, Gynecology

Dr. Lotze is the first fellowship-trained Urogynecologist to establish a practice here in Houston in 2002. He was also one of the first Urogynecologists in the country to become Board Certified in Female Pelvic Medicine & Reconstructive Surgery in 2013 when the Subspecialty Certification first became available. He specializes in the evaluation and treatment of female pelvic health and urinary incontinence. Areas of interest include prolapse (e.g. cystocele, rectocele, uterine/vaginal prolapse), complaints of urinary (stress) incontinence, irritating bladder symptoms (frequency, urgency), urinary retention, recurrent bladder infections, and painful bladder syndrome (also called Interstitial Cystitis). State-of-the-art technology including flexible cystoscopy and multichannel urodynamics are available for patient assessments. Treatment options that include both medical and surgical management are thoroughly reviewed with each patient. Surgical approaches focus on minimally invasive techniques – including laparoscopic and vaginal approaches. Emphasis is placed on the patient pursuing treatment options she feels are appropriate for her quality of life.

Dr. Lotze is the director of the Fellowship Program in Urogynecology at The Women’s Pelvic Restorative Center. He is also a Clinical Assistant Professor in the Department of Ob/Gyn, Division of Urogynecology for the University of Texas Health & Science Center – Houston. He is the Director of the Anatomy Lab for the Department of OB/Gyn Resident Education at the University of Texas Health & Science Center – LBJ/Houston. He has published articles in the area of Urogynecology and remains actively engaged in research in pelvic health issues.

Dr. Lotze serves on several hospital boards at The Woman’s Hospital of Texas. He is the Co-Chairman for the Texas Clinical Symposium on Female Pelvic Surgery – an annual 5-state meeting designed to improve physician knowledge in the field of pelvic reconstructive surgery. He serves as the Chairman of the Pelvic Floor Disorders Committee at Woman’s Hospital, which is dedicated to improving Female Pelvic Medicine and Reconstructive Surgery. He was instrumental in helping both Woman’s Hospital and the Women’s Pelvic Restorative Center achieve the nation’s first Center of Excellence Designation by the National Association for Continence for a private hospital and private practice group. He has served as a Board Examiner for the American Board of Obstetrics and Gynecology. He has previously served as Chairman of PURE-HOPE – a national patient support group for pelvic pain. He has been recognized repeatedly as one of Houston’s Top Doctors by his peers.

SuperDoctors Logo

Dr. Peter Lotze has been named by Texas Super Doctors® as one of the top doctors in Texas for 2020, 2021, and 2022. The Texas Super Doctors list is published annually in Texas Monthly magazine.

Board Certifications

Female Pelvic Medicine and Reconstructive Surgery


Hospitals Affiliations

Fannin Surgicare Center

Memorial Hermann Hospital The Woodlands

Memorial Hermann Surgery Center The Woodlands

Methodist Hospital of Houston

Methodist Hospital of Woodlands

Woman’s Hospital of Texas



Women’s Continence Center of Greater Rochester
Rochester, NY

Internship and Residency

Baylor College of Medicine
Department of OB/Gyn
Department of Psychiatry
Houston, TX

Medical School

Baylor College of Medicine
Houston, TX

Undergraduate School

Texas A&M University
B.S., Microbiology
College Station, TX

Treatment and Diagnostic Procedures Include:

Laparoscopic, robotic and vaginal hysterectomy

Laparoscopic, robotic suspension surgery of the uterus, vagina and bladder

Laparoscopic, robotic urinary incontinence surgery (e.g. Burch urethropexy)

Laparoscopic, robotic and vaginal correction of prolapse with or without mesh or graft augmentation

Vaginal sling surgery for urinary incontinence


Laparoscopic, robotic correction of bladder fistulas, urethral fistulas



Endometrial ablation

InterStim neuromodulation for the overactive bladder

Botox bladder injections

Health & Wellness

Hormone Imbalance - BioTE®

Certified Provider Badge Gold

FemiLift Laser Therapy

Femilift logo with slogan
Mary Umble
Women’s Health Nurse Practitioner
Mary Umble, MSN, APRN, WHNP-BC

Mary Umble is a Women’s Health Nurse Practitioner licensed by the Texas Board of Nursing and certified by the National Certification Corporation.  Mary is originally from Massachusetts, and attended Xavier University in Cincinnati, Ohio for her undergraduate degree of Bachelor of Science in Nursing. After graduating, Mary moved to Houston, Texas where she worked as a gynecological, gynecological oncology, and postpartum nurse prior to obtaining her Master of Science in Nursing degree from the University of Cincinnati. She joined the Women’s Pelvic Restorative Center in August of 2021.

Personal Interests

In her free time, Mary enjoys spending time with her husband, daughter, and corgi. She also enjoys reading, traveling, and relaxing by the pool. Mary is an avid New England Patriots fan and can be found rooting for her team every Sunday during football season.

Board Certification

Women’s Health Nurse Practitioner



University of Cincinnati

Master of Science in Nursing

Cincinnati, OH



Xavier University

Bachelor of Science in Nursing

Cincinnati, OH


Professional Associations

Nurse Practitioner’s in Women’s Health: 2020-Present
Houston Area Nurse Practitioners: 2019-Present
Sigma Theta Tau International: 2018-Present

Nancy Holloway
Family Nurse Practitioner and Nurse Midwife
Alice (Nancy) Holloway, NP

Nancy is a native Texan and has resided in Houston for twenty years. Her nursing career begin in 1999 as an Obstetrics and Gynecological Nurse Practitioner with one of Houston’s premier all female OB/GYN practices. Nancy’s role was that of supporting the leading physician of the practice for 20 years. In the process of doing so, Nancy created her own practice as a Nurse Practitioner in her own right. Her objective during that period was to provide comprehensive reproductive and restorative health for women of all ages. During her career as a Nurse Practitioner, she established a practice that included regional as well as international patients. It is with her continuing education, her experience and her passion for women and their restorative health that allows her the satisfaction of knowing that she has contributed to a generational legacy of medical integrity and feminine prosperity.

Practice experienced in Gynecological Well women exams, General Well Being Education, Nutrition and Weight Management Education.

Nancy attended The University of Texas Southwester, Dallas in 1999-2000 to become certified as a Nurse Practitioner in Women’s Health. In addition, Nancy was Board Certified by the National Certification Corporation (NCC) at Galveston College with a degree of Associate of Applied Science (AAS).

Make An Appointment