Double board-certified Ob/Gyn & Functional Medicine Doctor
Certified High Performance + Positive Psychology Coach
Hormone + Mindset Expert for Women Over 40

I help women who’ve been dismissed, misdiagnosed, or told "everything’s normal" finally understand what’s really going on with their health.
After 20+ years in women’s medicine—and my own personal experience with burnout and hormone chaos—I’ve built a proven, root-cause approach that blends functional testing, mindset tools, and lifestyle strategy to help you feel energized, focused, and in control of your body again.

👇 Scroll to learn more about my journey and how I can help you.

I know what it’s like to feel like your body is failing you.

I’m a double board-certified OB/GYN and Functional Medicine Doctor with over 20 years of experience in women’s health—plus certifications in High Performance Coaching and Positive Psychology.
But before I became a trusted voice in the hormone health space, I was the patient being told my labs were “normal” while I struggled to get through the day.

Back in 2012, after falling off a horse and breaking my back, everything changed. The physical pain was intense—but what followed was even more life-altering: fatigue, mood swings, brain fog, sugar cravings, zero motivation, and a growing sense that I had lost the vibrant, active woman I once was.

I was diagnosed with depression and handed prescriptions. But nothing worked. Deep down, I knew there had to be another explanation.

That’s when I discovered Functional Medicine—an approach that focuses on uncovering the root cause of symptoms instead of just masking them with medications. After comprehensive testing, it turned out my adrenals were shot. I wasn’t depressed—I was burnt out, inflamed, and hormonally out of balance from years of stress.

With targeted support, lifestyle changes, and real answers… I got my life back.
And I made it my mission to help other women do the same.

I work 100% online, coaching and consulting with women over 40 who are sick of being told they’re “fine” when they feel anything but.

My clients are often experiencing:

Fatigue, irritability, and stubborn weight gain
Brain fog, poor sleep, and afternoon crashes
Bloating, sugar cravings, or mood swings
And frustration with conventional care that only offers medication or dismisses their symptoms entirely

Through my signature approach—which blends functional medicine, mindset coaching, and evidence-based lifestyle shifts—we get to the root of what’s really going on with your hormones, gut, thyroid, adrenals, and more.

I use both traditional and functional lab testing, teach you how to interpret your results, and help you understand why you feel the way you do—so you can stop guessing and start healing.

You can’t fully heal the body without also addressing the mind.

That’s why I became certified in both High Performance Coaching and Positive Psychology Coaching—to give my clients the tools they need to stop self-sabotaging, build resilience, and actually follow through on the changes they know they need to make.

I’ve learned that mindset is often the missing piece in lasting transformation. And when paired with personalized health strategies? That’s when the magic happens.

I’m a former bodybuilder and lifelong learner based in New York, raising teenage twins (who are now headed to college!) with my husband—a traditional physician still practicing conventional medicine.

I’m also an online educator, sharing actionable hormone and health content across YouTube, social media, and my podcast—alongside supporting my membership community, seeing private clients, and creating mini-courses to help women over 40 feel strong, clear, and in control of their health again.

So if you’re feeling dismissed, defeated, or stuck in a body that doesn’t feel like yours anymore—I want you to know:
You're not alone. And you don’t have to figure this out by yourself.

Board Certifications

American College of Obstetricians and Gynecologists
American Academy of Anti-Aging Medicine (now Metabolic Medical Institute)

Licensure

Licensed to practice medicine in New York State

Education

B.S. in Biology, Siena College (1995)
Doctor of Osteopathic Medicine, New York College of Osteopathic Medicine (1999)
Ob/Gyn Residency, Danbury Hospital (2003)

Clinical Experience

Practiced Ob/Gyn in private and hospital-based practices in Norwalk, CT (2003–2008)
Practiced Ob/Gyn at Bassett Medical Center, NY (2008–2014)
Functional Medicine Fellowship, American Academy of Anti-Aging Medicine (2015)
Private Functional Medicine Practice (2014–2018)

Additional Certifications

Certified Positive Psychology Coach – Positive Psychology Coach Academy (February 2023)
Certified High Performance Coach – The High Performance Institute (May 2024)

Entrepreneurship

Founder & CEO, Kaspira Elite Health Consulting, LLC (est. August 2019)

What Clients Are Saying

I was facing huge life changes, raising (3) children, recently widowed due to a cancer diagnosis and although I myself was working in healthcare, I knew the stress and changing hormones needed to be addressed.

Dr. Renee was so warm and eagerly shared her own health ups and downs never once making judgements but always being open and genuine.

Functional Medicine allowed proper supplementation to be addressed based on testing done by labs and saliva ... an important piece to be done by physicians specifically trained in examining your results.

Thankfully, over the course of a couple appointments I began to feel much better. Functional Medicine is a great start to a personalized journey to better health.. body, mind and spirit ! I would highly recommend Dr Renee Wellenstein and Functional Medicine!

— Susan C.

A few years ago, I knew something was wrong with my body. I wasn't sleeping, my anxiety was through the roof and I felt awful day in and day out. Worried about what was wrong with me, I reached out to my primary doctor and my OBGYN. Giving birth to a baby 7 months prior, my OB told me that it must be late onset postpartum depression and to find someone to talk to while my primary doctor knew it was something hormonal but couldn't quite figure it out. {Then} I was lucky enough at the time to connect with Dr. Renee Wellenstein.

She ran tests on me and not even one month later I had my explanation as to why my body was so off. I had a hormonal imbalance, adrenal fatigue and nutritional deficiencies. Within 2 months I felt so much better, I was sleeping again and my anxiety was subsiding. I had a long road ahead of me to maintain my new lifestyle of supplements along with follow ups. Without Dr. Renee I would have probably ended up on sleeping pills and antidepressants and not be living the healthy lifestyle i lead now. I am so thankful to you Dr. Renee!”

— Felicia R.

I was struggling with not feeling well after having seen many “conventional medicine” docs who kept assuring me it was in my head, even though I knew I wasn’t feeling my best. A colleague referred me to Dr. Renee and I immediately liked her. She didn’t doubt any of my symptoms and got to work right away on finding the cause.

After some very thorough bloodwork and a follow up consultation, she began slowly adding a regime of natural products and supplements to try before even dis using any medications. After a few weeks on some of them I started to feel better and had more energy that I had in while. I would recommend anyone (especially women in the Peri-menopause range) to call Dr. Renee and get some answers !!!