You deserve a doctor
who actually investigates.
Dr. Alissia Zenhausern-Pfeiffer, NMD, FABNE is licensed in California and provides comprehensive, evidence-based naturopathic endocrinology care via telehealth โ for fertility, PCOS, Hashimoto's, thyroid, hormones, pregnancy, and postpartum. The same depth of care. From your home, anywhere in California.
Book a Free Discovery CallNo commitment ยท 100% virtual ยท Available throughout California
"After years of being told everything looked normal, Dr. Zen ran the labs my doctor wouldn't order. Within months I had energy again. I only wish I'd found her sooner."
โ NMD Wellness Patient
"For the first time, I felt like I had a clear plan, personalized lab guidance, and ongoing support that made all the difference. After struggling for years, I conceived naturally within six months."
โ NMD Wellness PatientYou've been told your labs are normal.
You know something isn't right.
The women who find Dr. Zen are the ones who don't accept "come back in a year" as a plan. They've done the research. They know something is being missed. They want a doctor who will actually investigate โ and build a protocol around what they find.
Trying to conceive
Natural conception, IVF preparation, FET support, or after failed cycles. Evidence-based, integrative fertility care that works alongside your REI โ not in place of them.
PCOS
Subtype-specific care. Insulin resistance, cycle irregularity, acne, hair changes, fertility โ addressed at the root cause, not masked. Whether you're TTC or simply want to feel well.
Hashimoto's & thyroid
Full thyroid panel interpretation โ not just TSH. Autoimmune root cause addressed alongside hormone optimization. For women who've been told their levels are fine and still feel terrible.
Pregnancy support
Prenatal nutrition, thyroid monitoring, iron and metabolic health, and postpartum preparation โ the depth your OB doesn't have time for, from the comfort of your California home.
Postpartum recovery
Postpartum thyroiditis, iron deficiency, hormonal recovery, mood support, and metabolic health. Care that actually matches the complexity of what your body is going through.
Hormones & cycles
PMS, PMDD, irregular cycles, perimenopause, menopause. Comprehensive hormonal care for women who want to feel consistently well โ whether or not pregnancy is the goal.
Expert care โ delivered entirely
through your screen.
Being in California doesn't mean settling for less. Dr. Zen provides the same depth of clinical investigation, the same evidence-based protocols, and the same concierge access โ entirely via telehealth.
Free discovery call
Start here. A real conversation โ not a sales pitch. Dr. Zen reviews your intake before you speak so your first interaction is already personal to your case. You'll leave with clarity on whether and how she can help.
Labs drawn in California
Dr. Zen orders your labs through California-based labs โ LabCorp, Quest Diagnostics, and others. You draw locally, results are reviewed remotely. Your insurance can typically be used for lab orders.
Your appointments โ wherever you are
Video appointments via secure telehealth. No commuting. No waiting room. Your 60-minute initial consultation and all follow-up visits happen from your home, your office, or wherever works for your life.
Direct access between visits
Questions don't wait for appointments. As a concierge member, you have direct messaging access to Dr. Zen through your patient portal โ plus access to your Wellness Lab Dashboard between visits.
Continuous care through every season
Fertility, IVF, pregnancy, postpartum โ your care evolves with you. California members receive the same seamless continuity as in-person Arizona patients. Your journey doesn't end at a positive test.
Real outcomes from
real women โ virtually.
"Before Dr. Zen, I felt overwhelmed by the idea that I would never get pregnant. I'd been seen by countless doctors and told IVF was my only option. I finally felt like I was part of my own fertility care. Now, after having our son, I tell all my friends to go see her."โ Caroline D.
"Dr. Zen not only identified that I had Hashimoto's โ something no one had caught โ her care plan helped me lower my thyroid antibodies, improve my thyroid function, and even improve my AMH levels. We are now 22 weeks pregnant."โ Lauren B.
"Dr. Zen provides the highest level of professional care with empathy and expertise. She thoroughly went over my fertility history and got a clear picture of my health before moving forward with her plan. I have had a lot of peace at this point in my journey."โ Fawn T.
Dr. Alissia Zenhausern-Pfeiffer,
NMD, FABNE
Dr. Zen is a board-certified naturopathic endocrinologist โ one of a small number nationally to hold the FABNE designation. She is licensed in both Arizona and California, and has built a practice specifically designed to provide the clinical depth that conventional medicine doesn't have time for.
She has Hashimoto's thyroiditis herself. She experienced gestational diabetes during her first pregnancy. She is a mother of two. She built this practice because the care it provides didn't exist โ and because she needed it herself. She knows the difference between a "normal" lab result and a lab result that tells the full story. Her California patients get the same investigation, the same rigor, and the same access as everyone she sees.
Questions California patients ask.
California deserves
better than "wait and see."
A free discovery call is where it starts. Dr. Zen reviews your intake before you speak โ so from the very first conversation, your care is already personal to you. No commitment required.