Henry Mayo Newhall OB-GYN
At Henry Mayo Newhall Hospital, we are committed to providing compassionate care for women through every stage of their lives. Our OB-GYN team offers personalized healthcare for women with a focus on their individual needs.
Services
Preventive & Routine Women’s Health Care
- Annual wellness exams
- Pap smears (cervical cancer screening)
- HPV testing
- Pelvic exams
- Breast exams & mammogram referrals
- Contraceptive counseling & prescriptions
- Fertility and family planning counseling
- STD testing & treatment
Obstetric (Pregnancy-Related) Care
- Preconception counseling (health optimization before pregnancy)
- Prenatal care (regular check-ups during pregnancy)
- High-risk pregnancy management (gestational diabetes, hypertension, multiples, etc.)
- Ultrasounds & fetal monitoring
- Genetic screening & counseling
- Labor and delivery care (including C-section and vaginal birth)
- Postpartum care (recovery, breastfeeding support, postpartum depression screening)
Gynecologic Care
- Menstrual disorder management (heavy bleeding, irregular cycles, painful periods)
- Menopause and perimenopause management (hormone therapy, bone health, symptom control)
- Pelvic pain evaluation (endometriosis, fibroids, ovarian cysts)
- Uterine fibroid treatment
- Ovarian cyst management
- Polycystic ovary syndrome (PCOS) treatment
- Pelvic inflammatory disease (PID) management
- Vaginal infections (yeast, bacterial vaginosis, STIs)
Urogynecology & Pelvic Health
- Urinary incontinence evaluation & treatment
- Pelvic organ prolapse management
- Pelvic floor dysfunction treatment
- Referrals to physical therapy for pelvic health
Gynecologic Procedures & Surgery
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In-office procedures:
- IUD removal
- Endometrial biopsy
- Colposcopy (for abnormal Pap results) Biopsy
- Cryotherapy or LEEP (treating abnormal cervical cells)
-
Hospital/Outpatient Services
- Hysterectomy (removal of uterus)
- Myomectomy (fibroid removal)
- Laparoscopy (minimally invasive surgery for cysts, endometriosis, etc.)
- Tubal ligation (permanent birth control)
- Oophorectomy
Fertility & Reproductive Health
- Infertility evaluations & initial treatments
- Ovulation tracking and hormone testing
- Referrals to reproductive endocrinologists when advanced fertility care is needed
Meet our Providers
Don J. Nishiguchi, M.D.
Dr. "Nish" is a board certified obstetrician/gynecologist and has been in private practice for over 20 years in Santa Clarita. He is a graduate of University of Southern California, Ohio State University Medical Center, and the USC Keck School of Medicine Obstetrics/Gynecology program.
His knowledge, caring demeanor, and empathy are well known among his patients. His patients tell us that Dr "Nish" is a type of doctor who will "hold their hands."
Dr. Nishiguchi’s interests are general and high-risk obstetrics, contraception, infertility diagnosis and treatments, Poly Cystic Ovarian Syndrome, pap smear issues as well as Premenstrual Tension Syndrome.
He also focuses on the diagnosis and treatment of irregular menses, osteoporosis and menopausal issues and offering benign and cancerous gynecologic surgeries including minimally invasive procedures in hysterectomy, myomectomy and laparoscopy.
For women who are suffering with very heavy menses, Dr. Nishgiuchi offers minimally invasive endometrial ablation to minimize further bleeding.
Lorena Del Valle, PA-C
Lorena Del Valle received her Master of Science Degree in Physician Assistant Studies from Touro University in Nevada. Prior to that, she earned a Bachelor of Arts degree from the College of Sciences at San Diego State University.
Lorena is a highly experienced physician assistant who has previously cared for patients in urgent care settings in Santa Clarita and is fluent in Spanish. She has a passion for women’s health and is grateful for the opportunity to care for her fellow Santa Clarita Valley residents.
A Personal Approach to Women’s Health
With a minor in Women’s Studies and a strong passion for women’s health, Lorena is dedicated to creating a welcoming space where patients feel heard and supported. She values open communication and strives to ensure every patient feels comfortable discussing their care.
661.200.2000