Our Team
Federal Injury Group clinics have credentialed, experienced doctors and medical staff who are experts with the Federal Employees' Compensation Act (FECA) and can help injured Federal workers get the benefits they are entitled to by law.
Since 2017,
Federal Injury Group clinics: Federal Injury Treatment Centers of Florida,
Federal Injury Treatment Centers of USA,
Federal Injury Doctors, DOL Doctors of Wesley Chapel, Federal Injury Treatment Center of the Palm Beaches, Federal Injury Treatment Center of North Palm Beach, Federal Injury Treatment Center of Miami and Federal Injury Treatment Center of Brandon have assisted with every step of the Federal workers’ compensation claims process, even if a claim has been denied previously. They provide the highest administrative support for claim case management and lead the industry in the OWCP space.
Federal Injury Group
founder,
Andrew Singer, is an expert on Federal Employee Workers' Compensation. Since 2017, he has a reputation for helping injured Federal workers get physical therapy and treatment and successfully return to their previous jobs once they are medically able to do so.
Physicians
Federal Injury Group Clinics’ Medical Provider
Bruce Kammerman, MD
Dr. Bruce Kammerman is a highly experienced family medicine physician based in Dunedin, Florida, with over 38 years in the medical field. A distinguished graduate of the University of Miami Miller School of Medicine, Dr. Kammerman earned his MD in 1985, setting the foundation for a long and accomplished career in healthcare.
Following medical school, Dr. Kammerman completed his internship and residency at Moses H. Cone Memorial Hospital in 1988. His extensive training and clinical experience have equipped him with a comprehensive understanding of family medicine, allowing him to provide exceptional care to patients of all ages.
Throughout his career, Dr. Kammerman has been dedicated to improving the health and wellbeing of his patients. His practice is characterized by a compassionate approach and a commitment to delivering personalized, evidence-based care.
Dr. Kammerman is licensed to practice in Florida (Health License Number: ME76259), and his contributions to the field are supported by a rich background in both academic and practical settings.
We are fortunate to have Dr. Bruce Kammerman as part of our healthcare community, where his extensive experience and dedication continue to make a positive impact on patient care.
Physical Therapy at Federal Injury Group
Carmen M. Lynch, DC
Dr. Carmen M. Lynch is a highly regarded Chiropractic Physician based in Florida. With over 30 years of experience in chiropractic care, Dr. Lynch has been dedicated to delivering exceptional patient care since she began her practice in 1994.
A proud graduate of Logan College, Dr. Lynch combines her extensive medical training with a compassionate approach to healthcare. Her practice is characterized by a commitment to personalized care, ensuring that each patient receives tailored treatment that meets their unique needs. Dr. Lynch emphasizes building strong, trusting relationships with her patients, fostering open communication and providing comprehensive support.
Dr. Lynch’s is known for her welcoming and supportive attitude. She remains at the forefront of her field by continuously staying updated with the latest advancements in chiropractic medicine.
Dr. Lynch holds a Florida Chiropractic License (FL License # CH 6541) and is also licensed to provide Chiropractic and physical under this license. Her dedication to patient well-being and her extensive experience make her a valued healthcare provider.
Glenn R. Larsen, DC
Dr. Glenn R. Larsen is a seasoned chiropractor with over 35 years of experience in the field, dedicated to enhancing the health and well-being of his patients. Originally from New York, Dr. Larsen earned his Doctor of Chiropractic degree from New York Chiropractic College. His extensive training laid the groundwork for a lifelong commitment to whole-body health and patient-centered care.
Since joining us, Dr. Larsen finds great fulfillment in helping Federal workers recover and regain their health. He appreciates the opportunity to give back to those who serve the public so selflessly. He enjoys the challenges these cases present and takes pride in guiding his patients through their rehabilitation journeys.
A firm believer in the importance of continued education, Dr. Larsen regularly attends workshops and takes courses in physical therapy, rehabilitative techniques, exercise, and nutrition. This dedication to professional growth ensures that he remains up-to-date in the field, equipping him with the latest tools and knowledge to provide effective care.
Dr. Larsen‘s approach to treatment is whole-body and individualized. He recognizes that each patient has unique needs and tailors his treatment plans accordingly. His expertise encompasses a range of chiropractic and physical therapy techniques to help patients recover from current conditions and injuries and promote long-term health and functionality. Additionally, Dr. Larsen will often discuss nutritional and lifestyle changes that can assist patients in better recovery and lasting health improvement.
Outside of his professional life, Larsen stays active through regular exercise, incorporating biking, yoga, and weightlifting into his routine. He believes that maintaining personal wellness is essential for providing the best care to his patients. Additionally, Dr. Larsen is an avid guitar player and enjoys performing with local groups, finding joy and creative expression in music.
Through his compassionate care, ongoing education, and active lifestyle, Dr. Glenn Larsen continues to make a meaningful impact in the lives of his patients and the community. His commitment to health and wellness extends beyond the clinic, as he strives to inspire others to embrace a balanced and active lifestyle. With each patient, he aims to alleviate pain and empower them to lead healthier, happier lives.
Gennea Williams, DC, ND
Dr. Gennea Williams is a distinguished Chiropractic Physician and Naturopathic Doctor based in Florida. She is renowned for her whole-body and patient-centered approach to healthcare. Graduating with dual Doctorate degrees in Chiropractic and Naturopathic Medicine from the National University of Health Sciences in 2018 and 2019, Dr. Williams combines her expertise in both fields to offer a comprehensive and integrative approach to patient care.
Dr. Williams holds a Florida Chiropractic License (FL License # CH 13168), and her commitment to natural and least invasive treatment methods defines her practice. She is dedicated to advocating for her patients, continuously seeking innovative ways to meet their needs with the utmost care and respect.
She focuses on chiropractic and alternative medicine as a comprehensive form of health care. She specializes in disorders of the musculoskeletal system and the nervous system. Treatments emphasize natural, non-invasive care that views the whole body and its entirety. Spinal and extremity manipulation/adjustment, therapeutic exercises, drop table adjustment, soft tissue techniques, rehabilitation, supplementation, lifestyle and nutritional modifications, counseling, and instrument-assisted techniques.
Beyond her clinical practice, Dr. Williams participated in an annual medical mission trip, where she provided essential treatment and health aid to Native American families on reservations. This commitment reflects her deep passion for helping and empowering individuals to regain control of their health through whole-body and personalized care.
Known for her balance of humility and confidence, Dr. Williams projects a positive and inspiring attitude, creating a warm and supportive environment for her patients. Her dedication to the well-being of those she serves makes her a valued and cherished member of the healthcare community.
Christopher Stenzel, DC
Dr. Christopher Stenzel is a dedicated Doctor of Chiropractic (DC) based in Florida. Raised in Largo, Dr. Stenzel carries with him a deep understanding of our community’s roots and culture. He is a proud alumnus of the University of South Florida, where he cultivated a keen interest in psychology and the biomedical sciences. His love for knowledge took him across the globe, where he studied, traveled, and lived in Austria, Hungary, and Germany.
An ever-evolving professional, Dr. Stenzel is a testament to the importance of lifelong learning. After his exciting journey abroad, he returned home to the US to further his chiropractic studies at the esteemed Palmer College of Chiropractic’s Florida campus, where he honed his expertise in various chiropractic techniques, physiotherapies, manual therapies, and therapeutic exercises. Dr. Stenzel takes a whole-body approach to his practice, advocating the significance of proper ergonomics, regular exercise, and nutritional supplementation in supporting positive outcomes.
Dr. Stenzel’s dedication to individual patient care is exceptional. His approach involves understanding each patient as a multifaceted individual and implementing a specific treatment plan to meet their treatment goals efficiently. He emphasizes the importance of patient empowerment, assisting them in making proactive health choices and augmenting the care he delivers. These philosophies form the backbone of a strong therapeutic alliance between Dr. Stenzel and his patients.
Aside from his professional passions, Dr. Stenzel is an avid stand-up paddle boarder, a tennis enthusiast, and a committed weightlifter. He enjoys the soothing melodies he creates on his guitar, exploring various podcasts, and reading about health science, psychology, politics, and history.
Paul Kalloghlian, DC
Dr. Paul Kalloghlian is an experienced and dedicated Chiropractic Physician based in Florida. With a career spanning several decades, Dr. Kalloghlian brings a whole-body and patientcentered approach to chiropractic care. He firmly believes in treating the body as a whole and emphasizes that optimal spinal function can significantly benefit overall health, both in treatinga nd preventing pain.
Dr. Kalloghlian earned his Doctor of Chiropractic degree from the National University of Health Sciences in Chicago, IL. His commitment to comprehensive care is further enriched by his studies in traditional Chinese medicine, allowing him to integrate diverse healing practices into his treatment approach.
Before relocating to St. Petersburg, Dr. Kalloghlian ran a successful private chiropractic practice in Montreal for 14 years. During that time, he provided care for a wide range of musculoskeletal conditions, gaining extensive experience in managing complex cases.
Dr. Kalloghlian previously worked at the Aria Health and Wellness Institute, where he continued to refine his expertise in holistic health and patient care.
He is fluent in English, French, and Arabic, which allows him to connect with a diverse patient population and provide culturally sensitive care. He is a classically trained pianist who has been playing since the age of 7. He enjoys going to the gym and practicing yoga, and he loves taking long walks and hiking.
Dr. Paul Kalloghlian’s extensive experience and dedication to restoring and optimizing health through natural, hands-on care make him a valuable addition to our practice.
Alvaro "Varo" Betancourt, DC
Dr. Alvaro "Varo" Betancourt was born and raised in Puerto Rico. He has his Chiropractic Doctorate from Life University in Marietta, GA, and his Exercise Science Degree from Universidad del Sagrado Corazon in Puerto Rico. He holds the CSCS (Strength and Conditioning Specialist) from NSCA. He specializes in injury rehabilitation and uses the principles of progressive overload to manage injuries and chronic pain. He has a passion for sustainable athleticism and healthy longevity.
Dr Betancourt played NCAA Division 1 soccer and was part of the Puerto Rico Major National team for 8 years where he had the opportunity to participate in many international tournaments and friendly matches.
He moved to St. Pete in November of 2023 to continue to pursue his professional career. He enjoys being outdoors, playing soccer, in-line skating, slacklining, playing pickleball, going to the beach, hiking, taking road trips, playing golf, and visiting coffee shops. He enjoys having quality time with his friends. When the day is winding down he spends his evenings with his dog Pelé and his cat Clemmy, short for Clementine.
J. Reinaldo Heredia, DC
Dr. J. Reinaldo Heredia is a dedicated and caring Chiropractic Physician with extensive clinical experience helping his injured patients to recover from their injuries and achieve and maintain optimum health. Dr. Heredia began his college education at the School of Physical Education at the Federal University of Rio de Janeiro, Brazil. At the University of Minnesota, he completed his pre-medical education while working for a Bachelor of Science in Physical Activity and Wellness. Dr. Heredia graduated from Northwestern College of Chiropractic, now Northwestern Health Science University, with a bachelor's degree in human biology and a doctorate degree in Chiropractic.
In addition, he has completed Acupuncture training at New York College of Chiropractic and the University of Miami Miller School of Medicine. Dr. Heredia is a fellow of the International Academy of Medical Acupuncture and a Certified Medical Examiner for the U.S. Department of Transportation. He has a clear and active license granted by the State of Florida Department of Health, Board of Chiropractic Medicine since 1995.
Dr. Heredia's language skills include English, Portuguese, Spanish, French, and Creole. He enjoys playing classical guitar, is a former college soccer player and volunteer youth soccer coach.
Steven R. Silverman, DC
Dr. Steven R. Silverman is a highly respected chiropractor and acupuncturist with over 40 years of experience in the field. Graduating from Logan University in St. Louis, Missouri, in 1979, he earned both his Bachelor of Science degree in Human Biology and his Doctor of Chiropractic degree.
Dedicated to continuous education, Dr. Silverman has received additional training in Physical Medicine and Rehabilitation from Logan University. His academic journey also includes an Associate degree in Biology from Nassau College and studies at the University of Missouri.
Licensed in both Florida and New York since 1979, Dr. Silverman is a Fellow of the International Academy of Medical Acupuncture and holds certification in Acupuncture from the Florida Department of Health. He is also affiliated with The Electro-Therapy Association, focusing on Auricular Acupuncture.
Andrea Guarin, DC
Dr. Andrea Guarin is a dedicated Chiropractic Physician who was born and raised in New Jersey. She has always had an interest in health and science which lead her to pursue her Bachelor of Science in Biology from Seton Hall University. She then moved down to Marietta, Georgia where she earned her Doctor of Chiropractic degree from Life University.
Utilizing her specific interest in chiropractic orthopedics and rehabilitation, Dr. Guarin takes a holistic, non-invasive approach to recovery. She combines evidence-based chiropractic techniques with functional rehabilitation to address the root causes of dysfunction. She has trained extensively in musculoskeletal conditions and movement restoration.
She is passionate about helping patients achieve optimal health and empoweringthem in their recovery journeys. Dr. Guarin believes in patient education and active participation in care. Of Colombian decent, she is fluent in Spanish and is committed to creating an inclusive environment where patients feel understood and supported.
Now living in Miami, Dr. Guarin is taking full advantage of the sun. She enjoys weightlifting, Pilates, and can always be found with a good book.

