Our Dedicated Infertility Specialists and Fertility Experts at West Coast Fertility Center in Orange County, California

Dr. David Diaz assembled a talented team of healthcare professionals to assist you on your pathway to parenthood. Our caring and experienced physicians, nursing staff and scientists bring decades of experience all focused on your well-being and dream of having a child. The diagnosis and treatment of infertility can be complex and we have found the Team Approach to be the most effective and successful. We work closely with physicians in internal medicine, high risk obstetrics and other subspecialties to maximize our patients' outcome. West Coast Fertility Centers was established in 1988 and since then, we have maintained the superior level of dedication to private, personalized care for all our patients in a comfortable environment.  

David G. Diaz, MD, FACOG David G. Diaz, MD, FACOG

David G. Diaz, MD, FACOG
Medical Director

David Diaz, MD is the Founder and Medical Director of West Coast Fertility Centers in Orange County California. He completed his medical training at Loyola University School of Medicine and finished his residency in the specialty of Gynecology and Obstetrics at the University of Missouri School of Medicine in 1986. West Coast Fertility Centers was established when Dr. Diaz completed his subspecialty training in Reproductive Endocrinology at Harvard Medical School.
Read more about Fertility Specialist Dr. Diaz

Richard  Holevas, MD, FACS Richard Holevas, MD, FACS

Richard Holevas, MD, FACS

Dr. Holevas, a Board Certified Urologist is Chairman of Urology at Hoag Hospital in Newport Beach. He has been in practice since 1984 and has a special interest in the treatment of Male Infertility. He has been a member of the WCFC Team since 1998 and performs advanced fertility enhancing procedures to treat blockage of the sperm ducts, cases of very low sperm counts, and aspiration of sperm called PESA and TESE.

Cristina Rodriguez-Karl
M. Cristina
Rodriguez-Karl, BA

M. Cristina Rodriguez-Karl
Senior Embryologist

Cristina is a Senior Embryologist with 15 years of experience with West Coast Fertility Centers. Ms. Karl holds a B.A. in Biological Sciences from California State University, Fullerton. Ms. Karl performs specialized embryology procedures, including the identification and classification of oocytes, evaluation of normal and abnormal fertilization, evaluation of embryo quality, photomicroscopy of gametes/embryos, as well as embryo transfer, freezing and thawing, and PGD. Ms. Karl also is experienced in sperm evaluations and preparation procedures for IUI, percoll gradient separation, gender selection, semen cryopreservation, and antisperm antibody testing and micromanipulation; e.g., ICSI, assisted hatching. Ms. Karl is member of the American Association of Bioanalysts and The American Society for Reproductive Medicine. 

Maria Ruíz, MA Maria Ruíz, MA

Maria Ruíz
New Patient Coordinator

Maria is a senior IVF coordinator and surgical scheduler for West Coast Fertility Centers. Ms. Ruiz has over 20 years experience in the medical field including clinical patient care in Pediatrics and Assisted Reproduction.

Maria has in-depth knowledge of every aspect of fertility such as nursing, teaching, surgical planning and she brings her considerable experience to our patients. Her calm and soothing manner brings comfort to the special needs of our patients when they require extra time and attention. When it comes to medication teaching, she provides reassurance and her excellent communication skills are much appreciated. She also serves as a mentor to the newer members of our staff. Maria is an expert at counseling our clients about the different financial options available to them.

Beth Torres,  MA Beth Torres, MA

Beth Torres
Patient Care Coordinator

Beth joined WCFC immediately after graduation and has evolved into a talented staff member. She is well organized and efficient, taking great pride in the beautiful appearance of her work area.  She is a real "people person" and team player whose delightful phone manner and melodious voice can bring a smile to everyone she meets. Her cheerful personality provides comfort and understanding to each and every patient. She is a terrific mom and is devoted to her family. We all enjoy working with Beth.

Elaine Wang, MFA Elaine Wang, MFA

Elaine Wang, MFA
Fetility Fitness Program Coordinator

Elaine is a yoga, dance, and qigong instructor who specializes in fitness, stress reduction, and arts integration (teaching and learning that uses the fine and performing arts as primary pathways to learning). As a teacher, dancer, and choreographer for nearly two decades, she has worked with thousands of individuals of all ages who have a range of diverse physical and emotional needs. The valuable insights that she has gained through working with them have provided the foundation for the Fertility Fitness Program at West Coast Fertility Centers. Elaine earned her BA degree in Dance from UCLA after spending one year at the prestigious Juilliard School. She later earned a Master’s in Fine Arts in Dance from the top-ranked Tisch School of the Arts at NYU and a Physical Education Credential from UCLA.

Rosa  Santoyo, MS, LMFT Rosa Santoyo, MS, LMFT

Rosa M. Santoyo, MS, LMFT
Psychological Counselor

Rosa is a bilingual/bicultural Marriage and Family Therapist for 30 years. She has a Masters' degree in Counseling and Psychology from California State University at Fullerton. She is in private practice in the city of Placentia, CA. She has worked with West Coast Fertility Centers since 1991 conducting psychological interviews with patients and their spouses and partners regarding issues of infertility and the emotional impact and implications on the patient. She also conducts interviews with potential donor egg providers, egg banking candidates, sperm donors and potential surrogates. She deals with marital counseling and issues of depression and stress management.

Michael  Peckham Michael Peckham

Michael Peckham
Financial Counselor

Michael has over 20 years' experience in the medical financial field. His role is to communicate with HMO's, indemnity insurance carriers and medical groups.  Since fertility treatments are rarely covered by insurance plans, Michael goes "above and beyond" to help our patients who are fortunate to have coverage.  His job requires great skill in dealing with third party payers but he feels it is worth it to help our patients whichever way he can. For those patients without insurance, Michael is very helpful in recommending a variety of financial options for fertility treamtents at West Coast Fertility Centers. 

Mary Alvarez, RN Mary Alvarez, RN

Mary Alvarez, RN
Post Anesthesia Care Unit

Mary brings over 20 years' experience as a Recovery Room Nurse at the University of California Medical Center, St. Joseph Hospital and Fountain Valley Surgery Center. Her special gift is putting patients at ease with her charm and great sense of humor. Mary's work experience in the Emergency Department has provided her with the confidence and skill required in our private fertility center. 

Ultrasound West Coast Fertility Centers Ultrasound Tech

Our team of ultrasound technicians provide efficient and precise services to our patients undergoing IVF. Follicles are measured accurately to provide our staff with important data during IVF monitoring. Our flat screen monitors allow our patients to observe their ultrasound scan to heighten their understanding of IVF. Our lead technician holds a teaching credential and conducts classes for college students learning the art of ultrasonography.

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Institute of Excellence


West Coast Fertility awarded Institute of Excellence by Aetna Healthcare. Read more

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Financing solutions with low monthly payments. Apply today with Prosper Lending and New Life Fertility Finance

Delay Having Children?

Egg Freezing Special in Orange County

Egg Freezing allows freedom to preserve your fertility until you're ready to start a family.
Egg Freezing Special Pricing

$300 Rebate Offer*

Free Second Opinion for Failed Fertility Treatments

*Rebate for cash patients who complete IVF within 90 days. This helps cover initial consultation and ultrasound fee.
Call 714-513-1399 for $300 Rebate

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