Fertility and Reproductive Health Care Team

On our fertility program team at Stanford Medicine Children’s Health, you will find the country’s leading embryologists, reproductive endocrinologists, clinical nurses, and technicians. We are all committed to work with you to develop a treatment plan that will work best for you and can help you achieve your dream of growing your family. Our fertility doctors are certified by the American Board of Obstetrics and Gynecology, and they conduct research and teach at Stanford University School of Medicine.

Ruben Alvero, MD

Ruben Alvero, MD, Medical Director, Fertility and Reproductive Health Program

Areas of expertise: assisted reproduction, endometriosis, PCOS (Polycystic Ovarian Syndrome), reproductive/robotic surgery

Liesl Nel-Themaat, PhD, MBA

Liesl Nel-Themaat, PhD, MBA, Director, In Vitro Fertilization Lab

Areas of expertise: in vitro fertilization, fertility preservation, oncofertility

Michael Louis Eisenberg, MD

Michael Louis Eisenberg, MD, Director, Male Reproductive Medicine & Surgery

Areas of expertise: urology, male infertility

Anna Sokalska, MD, PhD

Anna Sokalska, MD, PhD, Director, Fertility Preservation. She is board certified in Obstetrics and Gynecology.

Areas of expertise: reproductive endocrinology and infertility, fertility preservation, oncofertility

Ruth Bunker Lathi, MD

Ruth Bunker Lathi, MD, Director, Recurrent Pregnancy Loss Program

Areas of expertise: reproductive endocrinology and infertility, recurrent pregnancy loss and miscarriage, gynecology, preimplantation genetic diagnosis, fertility (reproductive medicine)

Steven T. Nakajima, MD

Steven T. Nakajima, MD, Director, IVF Outreach Program, Robotic Infertility Surgery

Areas of expertise: reproductive endocrinology and infertility, obstetrics and gynecology, ectopic pregnancy, endometriosis, robotic infertility surgery, uterine fibroids

Lusine Aghajanova, MD

Lusine Aghajanova, MD

Areas of expertise: obstetrics and gynecology, fertility (reproductive medicine), fertility enhancing surgery, PCOS, menstrual disorders

Brindha Bavan, MD

Brindha Bavan, MD

Areas of expertise: obstetrics and gynecology, reproductive medicine, infertility treatment, fertility preservation, fertility enhancing surgery, PCOS, and vaginismus

Stephanie Cizek, MD

Stephanie Cizek, MD, Pediatric and Adolescent Gynecologist

Areas of expertise: pediatric and adolescent gynecology

Amin A. Milki, MD

Amin A. Milki, MD

Areas of expertise: reproductive endocrinology and infertility, gynecology, obstetrics, fertility (reproductive medicine)

Brent Monseur, MD, ScM

Brent Monseur, MD, ScM, Director, LGBTQ Family Building Program

Areas of expertise: LGBTQ family building, egg/sperm/embryo preservation

Bo Yu, MD

Bo Yu, MD

Areas of expertise: reproductive endocrinology and infertility, oncofertility

Katherine Williams, MD

Katherine Williams, MD

Areas of expertise: psychiatry, reproductive mental health

Denishia Robbins

Denishia Robbins, Mental health clinician

Edward Nguyen, MD

Edward Nguyen, MD, Fellow

Areas of expertise: reproductive endocrinology and infertility

Anupama Rambhatla, MD, Fellow

Areas of expertise: oncofertility and endometriosis

Michael Strug, MD

Michael Strug, MD, Fellow

Areas of expertise: reproductive endocrinology and infertility

Ronit Mazzoni, MS, LCGC

Ronit Mazzoni, MS, LCGC, Genetic counselor

Areas of expertise: genetic counseling

Robyn Service, MSN, FNP-C

Robyn Service, MSN, FNP-C, is an oncofertility nurse practitioner on the Fertility Preservation team.

Pamela Simon, MSN, CPNP, CPON

Pamela Simon, MSN, CPNP, CPON, Founder of SAYAC (Stanford Adolescent And Youth Adult Cancer) Program.

Fiona Wang, PA-C

Fiona Wang, PA-C, Physician assistant

Monica Mayberry

Monica Mayberry, Program Director, Fertility Program

Colin James, MS-HPL, BSN, RN-BC

Colin James, MS-HPL, BSN, RN-BC, Patient care manager

Alexis McDowell, MHA

Alexis McDowell, MHA, Assistant clinic manager


    The embryologists perform all aspects of the in vitro process from oocyte identification to preparation of embryos for transfer. This includes semen processing, insemination, ICSI, embryo assessment, PGD, cryopreservation, thawing, and more.


    Our nurse coordinators are registered nurses dedicated to assisting our patients with all their treatment needs. They create the treatment schedules for our patients and meet with them to review their initial treatment cycle plan. Our Nurses also teach our orientation and injection training classes and are great resource for all your questions throughout your treatment cycle. You will also find our RNs in the procedure room assisting our physicians and anesthesiologist complete the preoperative check-list and getting them ready for the procedure as well as caring for our patients before, during and after the procedure.

    Genetic counselor

    We provide genetic counseling for couples seeking additional information about preconception and preimplantation genetic testing options. Our genetic counselor helps patients understand and adapt to the medical, psychological and familial impact of genetic disease; and interprets family and medical histories to assess the chance of disease occurring or recurring—the goal being to promote informed choices. Reasons to meet with a fertility genetic counselor may include desire for preconception carrier screening, a personal or family history of a genetic condition resulting in an increased risk for having a child with a genetic condition, multiple miscarriages, advanced maternal age, or union between relatives (consanguinity).

    Mental health therapist

    We provide individual, couples, and group therapy for patients undergoing fertility treatments as well as psychological assessments and support for donors and individuals undergoing third party reproduction. Patients may benefit from mental health therapy if they notice ongoing symptoms, such as loss of interest, low mood, strained relationships, high levels of anxiety, changes in sleep or appetite, excessive guilt/anger, or social isolation.  Therapy can help individuals and couples learn coping strategies, process negative emotions, problem-solve and communicate more clearly.  Patients often find speaking with a therapist useful when facing important decisions during their treatment, such as deciding between alternative treatment possibilities or exploring their family building options. 

    Lab staff

    The lab technicians perform phlebotomy, hormone and semen testing, and the additional preparation necessary for non-IVF procedures.

    Medical assistants

    Our medical assistants are medically trained ancillary personnel that perform a wide variety of functions within the clinic. They escort patients and prepare them for evaluations or treatment and assist Physicians with treatments and procedures. They support our nursing staff in the delivery of patient care. The medical assistants also help our physicians and nurses schedule appointments, prepare lab requisitions and obtain results. They are also a resource our patients may access to receive answers for basic questions regarding their treatment cycle and clinic procedures.

    New patient coordinators

    New patient coordinators schedule new patients with consultation appointments and answering all related questions. They also make sure we receive all required documents prior to the initial visit.

    Patient care coordinators

    Our Patient Care coordinators are ancillary personnel well informed in the field of infertility. They help create and communicate treatment schedules to our patients, according to Physicians directions. They triage phone calls, answer basic questions and refer other queries to Nurses or Physicians as appropriate. They assist our Nursing staff with all the clerical aspects of a treatment cycle.

    Financial coordinator

    Our insurance coordinators are specialized in all aspects of infertility coverage. They are able to assist our patients with financial matters throughout their treatment cycle. They verify eligibility and benefits for patients before their consultations. Our Insurance coordinators are available to meet with our patients to review their insurance coverage and financials schedule after a treatment plan is selected. During a treatment cycle, the Insurance coordinators request authorization from insurance companies for visits and medications, as needed. They are also available to answer any questions regarding insurance coverage and treatment cost over the phone.


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