Work with Dr. Mache

Dr. Mache Works with Individuals and Companies

If you are an individual who wants help dealing with infertility, perimenopause or menopause, please view Medical and Lifestyle Coaching below. If you are a corporation looking to position or defend your healthcare products or address the health needs of your workforce, please view Consulting and Strategic Advising below.


Schedule a Complimentary Call!

You can work one-on-one with Dr. Mache from anywhere in the world to help you improve your symptoms so you can immediately start feeling better. To see if you qualify, and what approach would work best for you, visit to schedule a free call and find out and how to proceed.


Dr. Mache works with you via phone or Skype to establish your health goals, and create an action plan to help you live the life you want to lead. During your free call you’ll explore where you want to be in one year from now and the best way to work together to accomplish what needs to happen to get you there.

The coaching relationship differs from a doctor-patient relationship. Dr. Mache does not prescribe medication such as hormones over the phone for coaching clients because he has not seen you personally as a patient or performed a complete exam and workup. You will get the information and education you need to start immediately making changes to help you improve your symptoms, and to bridge the gap between you and your local healthcare provider.

Take a few moments to fill out the online request form. We’ll schedule a FREE 15-minute call to get to know you better, discuss the areas that need support and what your next steps would be.



If you are trying to understand the women’s health market, position your health related product for the marketplace or improve the health and performance of your employees, click here to contact Dr. Mache Seibel.


Looking for an experienced industry expert and key opinion leader to work with your company?

Dr. Mache’s broad experience brings a three dimensional perspective to his work with industry. His professional roles span academic medicine as a groundbreaking researcher, director of laboratories and training programs, and division chief at Harvard Medical School; private practice; and industry medical director providing research, marketing and regulatory advice, investor relations and media relations. As an expert witness, Dr. Mache has successfully testified in medico-legal cases, before the FDA for new products, and successfully defended manufacturers in Federal Court.

His consulting experience ranges from start-ups to Fortune 500 corporations.

Contact Dr. Mache to discuss ways he can help your company.

“Dr. Mache served as an expert on my company’s behalf in a legal proceeding in which we prevailed. The judge noted in his decision that Dr. Mache’s testimony was more credible and persuasive than the opposition’s medical expert. Dr. Mache did this by being thoroughly prepared and reasonable in his positions. He also happens to come across as honest, likeable and can explain complex ideas well.”

Andrew J. Lane
Lane Labs


I read Dr. Seibel’s book, “The Estrogen Window” at the insistence of a Doctor I work with. I was in full menopause, and confused about what to do next. The book was straightforward and very educational, explaining how hormone replacement therapy can benefit women in my situation on many levels. The book explained in an easy to read format what the true facts are about the safety and risks of hormone replacement. My experience was enhanced by the opportunity to have a phone consult with Dr. Seibel. He reviewed my medications, and history, and was able to advise me on my whole system, not just one issue. I decided to begin hormone replacement therapy. Dr. Seibel told me what to look out for with follow up tests, (based on my complete list of medications) dosing, and how to use my new prescriptions most effectively. I was greatly comforted by Dr. Seibel’s responsiveness and guidance, since he’s a renowned expert in his field. I would highly recommend Dr. Seibel to any woman trying to gain more clarity on managing this confusing, but workable period of life.
Debby (New York)