Hey I'm Dr. Josh Bletzinger

Certified Functional Medicine Practitioner®

For over 20 years I've been helping my patients & clients recover and accelerate to a greater level of health through Functional Medicine, Nutrition, Fitness, & More.

In 2004 I opened my first chiropractic and sports medicine clinic in Geneva, Illinois.


Since 2004 I’ve morphed Performance Chiropractic through 3 expanding clinics to now practicing as an independent treatment doctor and consultant. My current clinical services are functional medicine and physical medicine. I focus on working with elite-level athletes using a functional medicine approach to help accelerate and fuel performance not otherwise available in traditional nutrition and training. I also help people reverse chronic health challenges such as type 2 diabetes, auto-immune conditions, and cognitive impairment. I focus intently on immune system function, biotoxicity, and neurologic health. Oh and I'm absolutely devoted to the 2 beautiful girls pictured!


At the beginning of my practice years, functional medicine was just a blip on the radar so I focused on what I knew all so well… sports injury. While I grew a high-volume chiropractic and sports medicine practice I was taking care of Olympic figure skaters and professional hockey players. I provided sports medicine services to a local high school and coached youth hockey as a labor of love.


But things were changing for me. I was not the youthful hockey player I once was. I was seeing my dad’s health fail under type 2 diabetes. I was seeing my grandmother losing the battle against dementia. I was foreseeing the health challenges stacking against me.



Hey I'm Dr. Josh Bletzinger

Certified Functional Medicine Practitioner®

For over 20 years I've been helping my patients & clients recover and accelerate to a greater level of health through Functional Medicine, Nutrition, Fitness, & More.

In 2004 I opened my first chiropractic and sports medicine clinic in Geneva, Illinois.


Since 2004 I’ve morphed Performance Chiropractic through 3 expanding clinics to now practicing as an independent treatment doctor and consultant. My current clinical services are functional medicine and physical medicine. I focus on working with elite-level athletes using a functional medicine approach to help accelerate and fuel performance not otherwise available in traditional nutrition and training. I also help people reverse chronic health challenges such as type 2 diabetes, auto-immune conditions, and cognitive impairment. I focus intently on immune system function, biotoxicity, and neurologic health. Oh and I'm absolutely devoted to the 2 beautiful girls pictured!

At the beginning of my practice years, functional medicine was just a blip on the radar so I focused on what I knew all so well… sports injury. While I grew a high-volume chiropractic and sports medicine practice I was taking care of Olympic figure skaters and professional hockey players. I provided sports medicine services to a local high school and coached youth hockey as a labor of love.


But things were changing for me. I was not the youthful hockey player I once was. I was seeing my dad’s health fail under type 2 diabetes. I was seeing my grandmother losing the battle against dementia. I was foreseeing the health challenges stacking against me.


That's when I sent the discipline of functional medicine to the front of my services. My personal mission was easy… quit aging and don’t get sick! And so that’s what I do now. I help people recover their health and slow down their aging process. I use a proprietary method of functional medicine and work with a wide range of health challenges. But it all comes down to finding the root cause of the problem, directing a process of healing, and igniting vitality. Each and every person has a different combination.

That's when I sent the discipline of functional medicine to the front of my services. My personal mission was easy… quit aging and don’t get sick! And so that’s what I do now. I help people recover their health and slow down their aging process. I use a proprietary method of functional medicine and work with a wide range of health challenges. But it all comes down to finding the root cause of the problem, directing a process of healing, and igniting vitality. Each and every person has a different combination.


I've been practicing functional medicine for the past 16 years to help my patients address the root causes of their health challenges and customize solutions to help achieve their health goals.


My absolute passion lies in helping people address their health from the inside out and help them create their best long-term health possible! I believe functional medicine is the foundation of that venture. I'm excited to use functional medicine as the platform for RPA Health and the specified programs.

I'm an athlete and former ice hockey player, having played hockey through college and coaching thereafter. My path was set on appointment to the US Air Force Academy to follow my dream of becoming a service pilot. It was because of some very specific and debilitating physical injuries that made me change that course and set my sights on the health field.


On the opposite side of these injuries was a family riddled with chronic disease and a personal battle with childhood obesity. I watched my father suffer, and ultimately pass, from type 2 diabetic complications, succumbing to a 25-year struggle with the disease. I also watched my grandmother progress to the deepest grips of dementia, eventually passing after a 13-year battle with the neurodegenerative condition that steals the brain. 


I quickly found conventional medicine had no answers to my or my family’s health challenges other than offering increasing prescription medications. So, in my pursuit to find answers to these health challenges I found a healthcare model that addresses and corrects the causative factors to ill health... functional medicine. I wanted to improve his health naturally, without the use of drugs or surgery, and help my patients optimize their health in the same manner.


Having found the answers for me through functional medicine-based healthcare, I set out to help my patients find lasting solutions to their health challenges in the same manner. I initially pursued a college undergraduate degree in fitness and nutrition, earning a degree in kinesiology from Northern Illinois University in 1999. Through personal experience and many investigations into natural healthcare practice, I matriculated into Palmer College of Chiropractic and earned his Doctor of Chiropractic degree in 2004.


I hold certifications as a Certified Functional Medicine Practitioner®, Certified Chiropractic Sports Physician®, Certified Athletic Trainer, with countless postdoctoral training hours in functional medicine, clinical nutrition, and functional endocrinology.

I've been practicing functional medicine for the past 16 years to help my patients address the root causes of their health challenges and customize solutions to help achieve their health goals.

My absolute passion lies in helping people address their health from the inside out and help them create their best long-term health possible! I believe functional medicine is the foundation of that venture. I'm excited to use functional medicine as the platform for RPA Health and the specified programs.

I'm an athlete and former ice hockey player, having played hockey through college and coaching thereafter. My path was set on appointment to the US Air Force Academy to follow my dream of becoming a service pilot. It was because of some very specific and debilitating physical injuries that made me change that course and set my sights on the health field.

On the opposite side of these injuries was a family riddled with chronic disease and a personal battle with childhood obesity. I watched my father suffer, and ultimately pass, from type 2 diabetic complications, succumbing to a 25-year struggle with the disease. I also watched my grandmother progress to the deepest grips of dementia, eventually passing after a 13-year battle with the neurodegenerative condition that steals the brain. 


I quickly found conventional medicine had no answers to my or my family’s health challenges other than offering increasing prescription medications. So, in my pursuit to find answers to these health challenges I found a healthcare model that addresses and corrects the causative factors to ill health... functional medicine. I wanted to improve his health naturally, without the use of drugs or surgery, and help my patients optimize their health in the same manner.


Having found the answers for me through functional medicine-based healthcare, I set out to help my patients find lasting solutions to their health challenges in the same manner. I initially pursued a college undergraduate degree in fitness and nutrition, earning a degree in kinesiology from Northern Illinois University in 1999. Through personal experience and many investigations into natural healthcare practice, I matriculated into Palmer College of Chiropractic and earned his Doctor of Chiropractic degree in 2004.


I hold certifications as a Certified Functional Medicine Practitioner®, Certified Chiropractic Sports Physician®, Certified Athletic Trainer, with countless postdoctoral training hours in functional medicine, clinical nutrition, and functional endocrinology.

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1121 E Main St.

Suite 130

Saint Charles, IL 60174

630.761.9702

[email protected]

RPA Health

1121 E Main St.

Suite 130

St Charles, IL 60174

630.761.9702

[email protected]

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