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Alcohol & Opiate Rehab Outpatient Medication-Assisted Treatment (MAT)



Naltrexone is an approved medication assistance treatment for patients addicted to alcohol. There are two opioid maintenance treatment medications approved in the US, methadone and buprenorphine. Naltrexone is the third approved medication for addiction to opiates, and has the advantage of providing a non-addictive medication for assistance in treatment recovery.

 Addiction can be thought of as a complex brain disease that has the ability to affect the functioning of a person’s motivation and reward centers. The electrical activity in the addicted brain has precise pathways that can easily be short circuited causing delicate learning and memory cells to be damaged, especially in the hippocampus. The hippocampus is a critical brain structure in the formation of long term memories and learning.

 The cornerstone of ARC’s comprehensive treatment platform is a long term implant of naltrexone or buprenorphine. The implant will provide a tool for providers and patients to promote a drug free environment for an extended period of time. This time will provide an opportunity for the brain to heal and recover.

 The entire ARC staff are proud to be associated with the ARC  programs for addiction to opiates and alcohol. The  ultimate goal, is to provide an opportunity for the brain to heal itself. If the brain is able to achieve some success, the patient may eventually be able to feel normal again.

Dr. Paul G. Flatley, DO


Paul G. Flatley, DO is a Board Certified physician in Emergency Medicine.  Though not an Arizona native, he has called Phoenix his home since 1995 when he came to Arizona to do his residency at Maricopa Medical Center. Since completing residency, Dr. Flatley has practiced medicine at Scottsdale Healthcare.  During his 18 year tenure, he has held numerous positions including Medical Director and Chair in which capacity he functioned for 5 years.  Recently, Dr. Flatley has developed a new area of interest and over the past 2 years has begun to transition out of the emergency department and into the field of addiction recovery. He has found this new field challenging but rewarding and looks forward to continuing to help patients find freedom in a life without substance abuse.

Favorite Quote:

“You miss 100% of the shots you don’t take.”   -Wayne Gretzky

Jason Pace, PA

Physician Assistant

Jason received his Masters of Physician Assistant Studies from The United States Marine Corps. and is an alumnus of The University of Utah (BS in Sociology) and Central Michigan University (MS in Administration). A Marine since 1990, Jason has worked in a medical capacity abroad as a Senior Brigade Physician Assistant in addition to beginning his military career as an Aviation Ordnance Technician. Jason enjoys spending time with his WONDERFUL wife Wendy and their children and grandchild.  Jason also enjoys boating, woodworking, and motorcycle riding. It is a privilege to practice medicine where I can continue to help serve others.

Lori Sieffert, RN

Registered Nurse

Lori grew up in North Dakota and moved to Arizona in 1982.  She graduated from Arizona State University with a Bachelor’s Degree in Justice Studies.  She worked for several years in the legal field, and then took some time off when her children were young.  She then went back to school and earned her RN Degree.  She worked for several years in Labor and Delivery, and loved the interaction with patients and their families.  Her family has been touched by the disease of addiction, and she understands that ​is a disease that affects not only the addict, but everyone around them.  Her compassion to help addicts and their families, has brought her to Addiction Recovery Centers.

Favorite Quote:

“You miss 100% of the shots you don’t take.”   -Wayne Gretzky

Melissa Lindsey

Intake and Admissions Coordinator

Melissa is originally from a small town in Utah and moved to Arizona in 2001 with her 2 children. She has worked in the medical field for over 5 years and coordinates administrative and clinical responsibilities for ARC.

Melissa assists patients, managing their unique requirements, understand and succeed with the full spectrum of ARC’s recovery programs. She helps patients with their insurance forms, appointment scheduling, correspondence and admissions. She also assists the medical team performing various clinical duties such as taking medical histories, vital signs, explaining treatment procedures to patients,

In addition to helping others throughout her career, Melissa makes it a priority to dedicate herself to service work in her community. She has taken that passion and applied it to serving families and their loved ones seeking help in recovery from addictions.

Favorite quote:

“If you’re feeling frightened about what comes next, don’t be.  Embrace the uncertainty.  Allow it to lead you places.  Be brave as it challenges you to exercise both your heart and your mind as you create your own path toward happiness; don’t waste time with regret.  Spin wildly into your next action.  Enjoy the present, each moment, as it comes, because you’ll never get another one quite like it.  And if you should ever look up and find yourself lost, simply take a breath and start over.  Retrace your steps and go back to the purest place in your heart…where your hope lives.  You’ll find your way again.” – Everwood

John Bamforth

Director Of Patient Care, CIO, CSO

John is responsible for leading all services for the outpatient operation of Addiction Recovery Centers. He oversees outpatient services across a continuum of care, as well as coordinate administrative oversight of addiction services provided. John also ensures program licensing and regulatory compliance, coordination of treatment reviews and accuracy charting all in the support of efficient delivery of services.

While John’s professional background is primarily in high-tech, he has developed a long tenure with 12 Step recovery programs and medically assisted recovery treatment. He joined ARC in 2014 and has helped drive and proliferate the concepts surrounding new medical treatments for addiction and alcoholism in the Las Vegas metro area. John earned a masters degree in Business & Technology from the Edwin Cox School of Business at SMU and also a master of science (MSCS) from Anthem University. In his spare time John enjoys the company of his two rescue dogs and is an avid swimmer.

Favorite quote:

“The here and now are all we have and if we take care of it, its all we need.” – Governor Ann Richards, Republic of Texas

Ganesh Acharya

Chief Executive Officer

Mr. Acharya has been involved in the healthcare industry for the past ten years.

 He started his career as a healthcare analyst for the Arizona Health Care Cost Containment System (AHCCCS), which is Arizona’s Medicaid program. At AHCCCS, he was the sole analyst for the executive management team and his duties focused on developing financial projections for proposed legislation and operational analysis for program implementations. Mr. Acharya worked as a consultant for Health Management Associates, a strategy firm that specialized in executive level strategy development for large public hospitals and health plans. He primarily focused on emerging market analysis for hospital service lines and sources of healthcare governmental funding. Mr. Acharya worked in strategy, product/marketing for Cigna’s medical services delivery unit as well.

In July of 2010, Mr. Acharya joined the Good Samaritan Hospital team and assumed the Chief Administrative Officer (CAO) position in February of 2011. In August of 2014, Mr. Acharya assumed the Chief Executive Officer (CEO) position. As the CEO, he oversees the day-to-day operations of the Hospital.

Mr. Acharya holds a Bachelor’s of Science in Supply Chain Management and a Master’s of Business Administration with an emphasis in Marketing and a Master’s of Health Sector Management with an emphasis in Healthcare Finance from the W.P. Carey School of Business at Arizona State University.

Favorite Quote:

“If you’re trying to achieve, there will be roadblocks. I’ve had them; everybody has had them. But obstacles don’t have to stop you. If you run into a wall, don’t turn around and give up. Figure out how to climb it, go through it, or work around it.” – Michael Jordan

Rogelio Monzon

Director of Finance

Mr. Monzon is relatively new to the healthcare industry, but a seasoned financial professional. He has extensive experience in the institutional banking sector from working for major financial companies such as Bank of America and JPMorgan Chase & Co. In January of 2013, Mr. Monzon moved from Phoenix, Arizona to join the Good Samaritan Hospital team in assuming the management duties of the accounting and revenue cycle departments.

He holds a Bachelor of Science in Economics and Political Science and a Master’s of Business Administration with an emphasis in Finance from the W.P. Carey School of Business at Arizona State University. Mr. Monzon is also a member of the National Society of Hispanic MBA’s (NSHMBA).

He is a passionate sports fan and enjoys being active in basketball, softball, snowboarding, surfing and Cross Fit. He is an avid golfer, but admits not a very good one.

Favorite quote:

 “The greater danger for most of us lies not in setting our aim too high and falling short; but in setting our aim too low, and achieving our mark.” – Michelangelo