Dr. Trevor Miller is a board-certified family medicine physician with advanced training in surgical obstetrics. At Rio Pecos Medical Associates, he provides full-spectrum family practice care for patients of all ages—from pediatric to geriatric—with a focus on women’s health, obstetrics, and gynecology. He is experienced in both vaginal and cesarean deliveries and participates in labor and delivery call coverage for the practice.

Dr. Miller was the first physician in the nation to receive the Coalition for Osteopathic Excellence Incentive Grant—an award supporting osteopathic physicians who choose to practice in underserved communities. Additionally, Dr. Miller was inducted into the Gold Humanism Honor Society, which recognizes clinicians who exemplify compassionate, patient-centered care and outstanding interpersonal skills.

Dr. Miller earned his medical degree from Burrell College of Osteopathic Medicine and completed his residency at Idaho State University, where he also completed an advanced surgical obstetrics training track. He holds certifications in advanced cardiac life support, neonatal resuscitation, and serves as an instructor in advanced life support in obstetrics.

Nancy Walker is a board-certified Family Nurse Practitioner with over three decades of nursing experience, offering compassionate, comprehensive care to patients of all ages. A Roswell native, Nancy began her career at Eastern New Mexico University–Roswell and went on to earn her Master of Science in Nursing. She is deeply committed to delivering personalized, whole-person care that blends evidence-based medicine with supportive wellness strategies.

Nancy provides primary care across the lifespan—from newborns to geriatric patients—with additional expertise in weight loss management, polycystic ovarian syndrome, postpartum depression, breastfeeding support, and bio-identical hormone replacement therapy, including pellet therapy. She is also a trained doula and certified childbirth educator, offering supportive care for women before, during, and after pregnancy.

In 2024, Nancy was nationally recognized as one of only 20 nurse practitioners selected for the prestigious Nurse Practitioner Entrepreneur Program sponsored by Duke University and Johnson & Johnson. This year-long initiative develops nurse-led primary care innovations in underserved communities, emphasizing leadership and business development.

Dr. Eric Yancey Peterson is a board-certified obstetrician and gynecologist with over three decades of experience providing comprehensive women's healthcare in Roswell, New Mexico. He specializes in general and high-risk obstetrics, preventive women's health, and menopausal management. Dr. Peterson also offers ovulation assistance for patients with polycystic ovarian syndrome.

He earned his Bachelor of Science in Zoology from Louisiana State University and his Doctor of Medicine from LSU School of Medicine in Shreveport. Dr. Peterson completed his residency in obstetrics and gynecology at LSU Health Sciences Center.

Since 1995, Dr. Peterson has been practicing at Rio Pecos Medical Associates, serving the Roswell community with dedication. He is a Fellow of the American College of Obstetricians and Gynecologists and a Diplomate of the American Board of Obstetrics and Gynecology.

Dr. Peterson has held several leadership positions, including Chief of Staff at Roswell Regional Hospital and Chief of Surgery at Eastern New Mexico Medical Center (ENMMC). He currently serves as the Secretary of the ENMMC Medical Executive Committee.

Fluent in both English and Spanish, Dr. Peterson is committed to providing patient-centered care with empathy and respect.

Dr. Richard Mooney is a board-certified gynecologist and a founding member of Rio Pecos Medical Associates, where he has served the Roswell community for over 40 years. He is a Fellow of the American College of Obstetricians and Gynecologists and a Diplomate of the American Board of Obstetricians and Gynecologists. He is also certified by the Accreditation Council of Gynecologic Endoscopy and has previously held memberships in the American Association of Gynecologic Laparoscopists and the International Society of Clinical Densitometrists.

Dr. Mooney’s practice focuses on gynecologic surgery and complex women’s health concerns. His areas of expertise include:

• Surgical and non-surgical management of pelvic relaxation syndrome
• Bladder sling surgery for urinary stress incontinence
• Hormonal and surgical treatment of abnormal uterine bleeding, fibroids, ovarian cysts, and pelvic pain
• Minimally invasive procedures including laparoscopic hysterectomy and diagnostic laparoscopy
• Management of cervical and vulvar lesions through colposcopy, cryotherapy, LEEP, and conization
• Menopausal care, including hormone replacement therapy
• Adolescent gynecology, contraceptive counseling, and IUD placement
• Preventive services including breast exams and annual women’s health screenings

Fallon Moody is a board-certified Family Nurse Practitioner with over six years of nursing experience in diverse clinical settings, including women’s health, pediatrics, family practice, and mental health. A Roswell native and graduate of Eastern New Mexico University, Fallon earned her Bachelor of Science in Nursing from Western Governors University and her Master of Science in Nursing from Chamberlain University.

Known for her compassionate and ethical approach, Fallon is passionate about delivering holistic healthcare that supports the whole person and the entire family. She has a strong commitment to improving the patient experience in routine care and changing how individuals engage with the healthcare system.

Fallon has received advanced clinical training with Rio Pecos Medical Associates and other regional practices, developing expertise in obstetric care, pediatric wellness and illness management, gynecologic procedures, contraceptive management, and care for aging adults. She is certified in Advanced Cardiac Life Support, Neonatal Resuscitation, Basic Life Support, and the S.T.A.B.L.E. program. She is also a member of the American Association of Nurse Practitioners.