At Performance Medical Rx we specialize in Testosterone Replacement for Men, Bioidentical Hormone Replacement for Women, Pellet Hormone Therapy, Peptide Therapy, PRP, Hypothyroidism, and Weight Loss. We are experts in treating issues such as low testosterone, sexual and erectile dysfunction, hormonal and vitamin deficiencies, and thyroid imbalances.

Dr. Michael Ambrose MD, DC, MS

Dr. Ambrose is the man and the vision behind Performance Medical Rx. A board-certified Medical Doctor and Chiropractor specializing in Internal Medicine, Hormone Replacement Therapy, Medical Weight Loss, Pain Management, Integrative Medicine. His mission in life is to make his patients feel better and allow them to live happier healthier lives.

She is thankful every day for the challenges she has undergone, because without these tribulations, she would not be able to heal you. What you are going through, feeling, and experiencing is most likely something Anna has struggled through at some point. And if not, she has definitely healed someone who has.


Dr. Ambrose had the pleasure of growing up in the metro east area and started his career as a chiropractor. Graduating from Logan College of Chiropractic in St. Louis, he practiced for two years as a Chiropractor before he decided to go back to Medical School.

Dr. Ambrose completed medical school and ultimately an Internal Medicine Residency at Southern Illinois University. After residency, Dr. Ambrose entered practice as an Internal Medicine physician but realized that something was missing in the healthcare system. This led him to expand his scope of practice to address his patient’s concerns in a more holistic, integrative approach.

For this reason he received additional training in pain management, anti-aging medicine, stem cell therapy, regenerative medicine, and hormone replacement therapy, as he feels that these are critical to addressing the whole patient. When he is not spending time with his wife and four beautiful children, he can usually be found deer hunting in the woods.

Dr. Michael Ambrose



  • Doctor of Medicine (MD)
  • Board Certified: American Board of Internal Medicine
  • Doctor of Chiropractic (DC) 
  • Board Certified: National Board of Chiropractic Examiner
  • American Academy of Anti-Aging Medicine (A4M)  


  • Certification and Specialized Training with Age Management Medicine Group (AMMG)
  • Fellow in Metabolic and Nutritional Medicine
  • Institute for Functional Medicine (IFM)
  • Peptide Therapy Training with International Peptide Society (IPS)
  • Certification and Training from American Society of Interventional Pain Physicians (ASIPP)
  • Certification and Training from Metabolic Medical Institute (MMI)
  • Specialized training in Platelet Rich Plasma / PRP Therapy, and Stem Cell Procedures
  • Certification in “O” shot, Priapus Shot, Hair Restoration, Vampire Facelift

Laura, CPT, Client Relations, Creative Marketing Director

Laura grew up in Saint Louis, Missouri. She graduated from University of Missouri, Columbia in 2012 with a Degree in Health Sciences, with emphasis in both Business and Psychology. Laura joined the PMRx team in 2016 to help Dr. Ambrose grow and expand the practice. Her main role is to oversee patient operations and is committed to making every patient experience a positive one!

Laura is grateful to be a part of an upbeat, caring, and team oriented environment, where there is something new to be learned and perfected every day.

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Since her time here, Laura has worked to expand her knowledge in a more clinical aspect by completing a Phlebotomy Certification program in 2017, and an IV Certification program in 2018. With these certifications, she is able to provide a more hands on role with patients. Laura loves meeting and interacting with all of our patients and watching as their health improves and transforms throughout their treatment.

Outside the office, Laura enjoys spending time with her husband, two step daughters, daughter, and baby boy. She enjoys cooking, traveling, and being active outdoors.

Zoa, Executive Assistant

Zoa started at our practice in 2023. She has been in the customer service and administrative office field for over ten years. In that time, she has completed Cosmetology School and earned an Esthetician License. Zoa has always loved helping people feel good and confident. That love and passion is what brought her to the medical side of things. She is a firm believer that when you feel good, you look good and more often than not it takes medical advice to reach your full potential.

At Performance Medical Clinic, Zoa will work directly with patients in scheduling, beginning treatment plans, and being available for patient communication.