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Thomas O'Connor, MD



I created Testosteronology, a sub-specialty of Internal Medicine after many years of caring for thousands of men on testosterone and anabolic steroids. No other medical specialty offers comprehensive and personalized medical services for men on androgens; Testosteronology is distinct from Endocrinology and Urology. Testosteronology is more specific than Endocrinology, which deals with all hormones in men and women. And it is different from Urology, also known as genitourinary surgery, which focuses on the mechanics of the genitals and does not consider the cardiovascular implications of androgens. Testosteronology offers men from all over the world a safe place where they are respected, listened to, and protected by the most cutting edge, progressive men’s heath physicians on earth.


My medical practice consists of a range of specialized medical services for men: Testosterone Replacement Therapy, Anabolic Recovery Medicine, and Cardio-Metabolic Men’s Health – focusing on aggressive prevention of cardiovascular disease, quality of life, and prostate health. 


In 2005, I became the first physician in the United States to establish a full personal/concierge medical practice immediately following residency at The University of Connecticut School of Medicine. I have always enjoyed self-challenge, both intellectual and physical. At 47 years old, I became one of the strongest medical physicians in the world with a 505 lb. bench press in competition. Training has always been my inner energy! This is what made me one of the most competitive medical students and residents while at UCONN. I studied medicine like I lift weights! Today, I spend my days seeing patients, writing and speaking about what I have learned as a physician, and teaching medical students/residents. At the end of the day, I rise up to smash weights in the gym or tear things up in the trails on my mountain bike! One of the things I love most about being a physician/healer is sharing with my patients the spiritual mind/body connection – the essence of success and power! Let me protect your health and bring out the best of you – in you!




  • American Board of Internal Medicine Certification - Since 2005 

  • Clinical Instructor/Teaching Physician-Department of Medicine-University of Connecticut School of Medicine 

  • Physician Preceptor Clinical Longitudinal Immersion in the Community (CLIC) 

  • Residency Training – University of Connecticut School of Medicine – 2005 

  • Professional Medical Studies – New York Medical College - 2002

  • Pre Medical - Post Baccalaureate – Syracuse University




  • Graduate degree in Exercise Physiology - Master's Degree - Long Island University

  • Author of “Anabolic Doc” column in Muscular Development magazine  2009 - current

  • Contributor to Bill Llewellyn’s Anabolics 11th Edition 

  • Author – “America on Steroids – A Time to Heal”, 2017

  • YouTube Channel "Anabolic Doc" for anabolic steroid education

Kimberly DiBattista
General Manager

Kim  is the chief of the office. She wears many hats as she makes sure that every patient is serviced to their 100% satisfaction. From daily patient triage to  fighting for patients medicines getting covered by their insurance, she is Dr. O'Connor's right hand tiger!  Her extreme sharp-wittedness and leadership skills - honed during her many years in the legal services industry  are relied on daily in growing this innovative, cutting-edge practice. Her goal is to deliver the ultimate experience in patient satisfaction by providing unsurpassable attentiveness and the highest level of care. Kim’s personal passion for the fitness/health industry has led her to become a Certified Personal Trainer and she enjoys helping others attain their fitness and wellness goals. Kim also brings an extensive background in law where she maintained the highest performance standards within a diverse range of legal and administrative functions. She is CPR/AED certified.

Kathleen Hoekstra, PhD 
Director of Research

Dr. Kathleen Hoekstra brings to the team 30 years of experience in social science and psychotherapy education, practice and research, including academic and clinical appointments at Columbia University, Fordham University and Lehman College of the City University of New York. Her practice and research interests have been focused on examining the complex interaction of individual and societal factors in human behavior, and on practices and policies which can foster more adaptive transactions between these. Bringing that layered and dynamic perspective now to healthcare, Dr. Hoekstra will be assisting Dr. O’Connor in his ongoing research on ways to improve patient outcomes.

Wendy M. O'Connor, B.S.N., R.N.
Clinical Nurse Executive

Wendy is a registered nurse in Connecticut and Florida and has worked as a cardiac nurse in the hospital setting since 2007. Dr. O’Connor selected her to be his clinical nurse executive and she has taken on the duties of caring for his patients’ clinical needs. She enjoys working with the men that come aboard the practice and educating them about cardiovascular and preventive healthcare. She also enjoys talking to potential patients about the full range of Testosteronology services. Her vast clinical and administrative experience makes Wendy a skilled and empathic interpreter, caring for Dr. O’Connor’s patients medically and clinically. 


Certified ACLS and BLS/AED

Baccalaureate of Nursing from Sacred Heart University 

Diploma of Nursing from Bridgeport Hospital School of Nursing

Member of American Nurse Association, Connecticut Nurses Association and Prevention Cardiovascular Nurses Association




All Testosteronology services start with a lab test and consultation.



We will send a requisition order to your local lab, email you when complete, then you will go to have your blood drawn.


Once we have received your lab results, we will email you to schedule your consultation. 


Your consultation will take place in person, via phone, Zoom, Skype, or Facetime. Dr. O'Connor will discuss possible treatment options.


We will help you choose an appropriate service tier to meet your needs and set up a physical exam. You can choose to have your physical exam in person or via HIPAA compliant telemedicine videoconferencing on case-by-case basis




Does my insurance cover the consultation fee?

No, the consultation fee is an out of pocket expense.


Does my insurance cover the annual membership fees?

No, the membership fees are an out of pocket expense. 


Do you take insurance?

Yes, we are in network with most major insurance companies including Medicare.

What does my insurance cover?

All costs associated with your medical services including medications, labs, office visits and covered procedures are billed to your insurance company. Coverage is based on your individual plan.  Please contact your insurance company for coverage details.

Will the consultation labs be covered by insurance?

Please contact your insurance company as coverage is based on your individual plan.


Why am I paying an annual membership fee?

The annual membership fee is for the doctor’s management of your care. This fee covers what your individual insurance does not cover. You will get an annual comprehensive physical exam and he will follow you throughout the year with scheduled labs and reviews.

Does the Consultation fee of $495 get applied towards the cost of the annual membership fees for the first year?


Are medications included in the cost of the membership fees?


How long is my membership fee good for?

1 year. This fee is renewed annually.

What medications are included in the cost of my membership fee?

Medications prescribed are based on your level of care and individual needs.  See the Membership page on our website for more details.

Do you accept HSA/FSA membership service payments?

Yes. Your HSA/FSA will cover membership service payments. 


When do I get my prescription?

Once you've completed your history and physical exam with Dr. Thomas O'Connor.

Do I need a physical exam in order to receive a prescription medication?

A comprehensive physical exam is required prior to prescribing medication. You may come to either of our offices, or on a case-by-case basis we may offer a telemedicine option and/or a physical performed by a 3rd party physician near you.

Do I need to go for lab work?

Yes, the Doctor needs current laboratory results in order to properly evaluate you.


Start off with a blood test and general in-depth consultation. You will receive an hour with the doctor to talk about everything going on with your body and how you would fit with the services.

© 2020 Thomas O'Connor MD, LLC

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Content written or on video, social media posts by or associated with Thomas O’Connor, MD, Testosteronology, Metabolic Doc/Anabolic Doc or Thomas O’Connor MD LLC and in any format or any reproduction is for educational and informational purposes only. It is not intended as medical advice and should not be taken as medical advice. See your healthcare provider with any medical concern you have. Thomas O’Connor, MD does not support the usage of illegal substances. Do not take any medication without a prescription from your doctor.

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