Advisory Board Members

NAFC has a highly educated and professional group of Advisory Board members who bring their vast amounts of fitness and wellness industry experience and knowledge to our organization. Advisory Board members are selected for their individual, professional expertise in their respective practices/specialties, as they relate to purpose, mission and activities of NAFC in the field of health and fitness. Members represent expertise in the fields of Exercise Physiology, Adaptive Physical Education, Medicine, Nursing, and professional Lifestyles and Nutrition Coaching. We are committed to enhancing current fitness certification standards by providing access to a convenient, comprehensive, yet practical and affordable fitness education. The advisory board provides feedback and advice to the Governing Board. All members of the Advisory Board are approved by vote of the Governing Board.

June Chewning BS, MA

June Chewning has been serving in the fitness industry since 1978 as a fitness instructor, personal trainer, master trainer, content creator/provider, education service provider, fitness editor, and domestic and international presenter.  She taught elementary physical education for 6 years before completing her Master’s Degree in Exercise Physiology and Health Enhancement.  June served as president and owner of Health Enhancement and Fitness Services (a corporate and community wellness provider) for several years, and owned/managed…

… Harrison Health and Fitness Center (a full service fitness facility) for 18 years.  She served as an Aquatic Exercise Association Training Specialist for 18 years, edited the AEA Aquatic Fitness Professional Manual and the Aquatic Fitness Research Journal (a peer reviewed professional journal), served on the AEA Research Committee, and worked as an education consultant.  She is 2-time recipient of the Contribution to the Aquatic Fitness Industry Global Award.  June served as adjunct Faculty at Cincinnati State College 14 years, and has developed several college curriculums and taught many courses for their Health Fitness Technician degree program.  She is president and education director for Fitness Learning Systems, an IACET accredited education company developing and providing quality eLearning continuing education and services for the health-fitness industry.

Steve Chewning BSEE

Steve Chewning has over 40 years of experience in computer engineering and information technology. He holds a Bachelor of Science in Electrical and Computer Engineering. He started his career with Hewlett Packard developing desk top computers and has held several technical and management positions including Vice President of Engineering at Penril Datacom, Director of Product development at Digital Communication Associates, and Director of…

…Integration Services at American Modern Insurance.

In 2003 Steve was one of the founders of Fitness Learning Systems. FLS produces and distributes interactive online continuing education courses for the Health Fitness industry. Since 2012 Steve has served as the Director of Operation for FLS.

Kristi Smith MBA

Kristi Smith holds an MBA and is an authority on sustainable, healthy growth in organizations and Lean Enterprise implementation. Her focus is in sustainability and scalable growth allowing for stable implementations that are built to last. Kristi has 20 years of results managing people and projects, developing and facilitating training programs, and optimizing business processes and operations.

Greg Salgueiro, MS, RD, LDN

Greg Salgueiro is a Registered and Licensed Dietitian in the State of Rhode Island. Greg began teaching the two-day Nutrition for Professionals course with Dr. Jane Pentz in 2008. He also held the position of the Director of Sports Nutrition for Lifestyle Management Associates and currently is the AASDN-BOC Program Director. Greg has experience in corporate, as well as hospital based, fitness and wellness programming. In the past he has been called upon to lecture on Sports Nutrition and Weight Management for the United States Coast Guard Academy. Greg has performed Sports Nutrition workshops for Division I Collegiate athletic teams and works with local high school and college athletes to help them fuel their bodies for optimal athletic performance.

Greg is also certified through the Cooper Institute as a Health Promotion Director and through Totally Coached as an Intrinsic Coach. Greg is an ACSM Certified Health Fitness Specialist, an ACSM Certified Advanced Personal Trainer, and possesses a B.S. in Nutritional Sciences from Cornell University. Greg completed his Dietetic Internship at the Bronx VA Medical Center while simultaneously completing his M.S. in Clinical Nutrition at New York University. He also received advanced training at the Human Performance Institute in the Power of Full Engagement and works with clients to optimize human performance through energy management. Greg currently works full-time as the Manager of the Lifestyle Medicine Center and the Women’s Medicine Collaborative for Lifespan.

Michael McElveen, MS, CSCS

Michael McElveen holds a bachelors of science in health science and a master of science in sports medicine. Michael has been instructing the two-day Nutrition for Professionals course with Dr. Jane Pentz since July 2011. Michael has experience working in a variety of settings including hospitals, other non-profit organizations, and in the private setting. He currently serves as the assistant dean of student wellness at Berry College.

Josh Lyons

Josh Lyons and his wife, Stacy opened their first physical therapy clinic in 2004-Pinnacle Physical Therapy. By 2009 the operation grew to three clinics with nearly 50 employees. In 2009 Josh oversaw the company transition to that of a “medical wellness” company as it adopted the service lines for medical fitness, nutrition, and massage.

Josh is currently CEO and managing director of what is now Pinnacle Medical Wellness with three facilities and contract management services…

…for Lifestyle Medicine in other medical organizations such as UW/Valley Medical Center in Renton, WA. He consults nationally for practices seeking to adopt a similar set of services and manages the companies blooming franchise business.

Tammy Leboss

Tammy LeBoss writes and edits for the National Association for Fitness Certification (NAFC). Since 1998 Tammy has been instrumental in the successful development of several successful Gyms, Yoga, and Pilates studios. In addition to managing nutrition and training departments, she is a certified Exercise Specialist, Yoga and Pilates teacher, an educator, and a published writer on related health, fitness, anatomy, weight training, and nutrition topics. 

Marisol Baltazar Nava

Director of NAFC Latin America and Founder of NAFC Power Rebounder™

International Course Presenter for NAFC in Latin America, Asia, and the United States, Marisol is also an international representative of IDEA Health and Fitness Association’s WORLD in Mexico.  Marisol has been in the fitness industry since 1995 with 15 years of experience working abroad in England, Asia, and Central and South America. She has several primary and specialty certifications in …

…the fitness industry including: Personal Training, Group Fitness Instruction, Functional Training Specialist, and Strength and Conditioning Coach.  She has Master Training Specialties in Boxercise/KickBoxercise UK, Lebert Fitness and MMA Fighter Fit, and CEO Pro Power Fitness Series. Marisol has developed a wide range of training programs in her role as Director of NAFC Latin America and trains Master Trainers for NAFC. Her passions include spending time on new programming and mentoring other instructors while sharing her skills with like-minded professionals. She enjoys participating in several major fitness events all over the world and inspiring fitness professionals to make training sessions enjoyable to guide clients to a life of health and fitness.  

Liz Toppen

Originally from England, Liz has been involved in the fitness industry for over 30 years, 15 years of which has been focused on teaching Pilates.

Having taught various fitness formats over the years, Liz found herself dealing with low back pain, knee issues and a torn shoulder, which continued to drive her deeper into the world of Pilates.

Her understanding of deep anatomy was increased exponentially by…

attending NAFC’s cadaver school hosted at Axis Research and Technologies in Irvine, CA. She has immersed herself in rigorous Pilates trainings through NAFC including “The Pilates Coach,” “Bender Training Academy,” and “Balanced Body.” She has spent time working closely with Chiropractors and Physical Therapists while teaching the safe and effective programming she learned through NAFC certifications. She now serves as the NAFC Pilates program director.


D. Michael Johnston

D. Michael Johnston is a self-employed statistician, math tutor and consultant. Originally from Northern California, Mr. Johnston spent 5 years in the United States Army, including 2 years studying at the United States Military Academy at West Point, NY before returning to active duty before exiting the Military Service in 2012.

He currently is engaged as a technician in the calibration industry and studies…

… Applied Mathematics at SUNY Empire State College and will graduate in 2014 with his B.S. Michael enjoys the challenge of projects involving statistical measures and metrics as applied to the construction of definitive measurement instruments. Along with his schooling and employment Mr. Johnston is a freelance consultant to keep his mind active and stimulated.

Leslee Bender

Leslee Bender has been in the fitness industry for over 25 years, and has been selected as one of the candidates for 2010 instructor of the year by IDEA. Leslee is the original creator of Safe Pilates, utilizing the Pilates Coach mini ball (now the Bender Ball). Leslee has produced over 25 DVDs illustrating these methods, and has presented in over 20 countries worldwide. Leslee’s certifications are from ACE, AFAA, ACSM, NASM, and she holds a B.A. from the University of Nevada, Reno, and is now enrolled in the Gray Institute GIFT program.

As the original creator of the Bender Ball™ and Bender Method™, Leslee has presented at all of the main fitness conferences throughout the world; including IDEA, IHRSA Club Industry, Sara City, ECA, AFPA, AAAI and many more. Hundreds of clubs have utilized her form of Pilates training where she has integrated her unique Selective Stabilization(tm) methods for taking Pilates training to a whole new level. For these efforts, Leslee is currently nominated for New Mind Body Programmer of the Year for ECA New York.

Leslee’s philosophy is: “Everybody can do the Bender Method of training from Core Training to Pilates. My instructional techniques are based on real results. I have worked with the best of the best exercise physiologists and practitioners in the medical field to design specific exercises for strength. I personally train individuals to insure my techniques deliver results for people just like you. I believe one MUST learn to activate their core before ever moving forward into any kind of exercise program. With my Bender Method of Core Training, you’ll finally feel your entire abs, possibly for the first time, including your side obliques, upper abs and those really hard to train deep lower abs.”

Bach MacCloud, D.O., N.D., PH.D., OMMF, FAAPM, LC

Dr. Bach MacCloud’s mission has been “empowering people in overcoming health challenges to free them from healh-imposed limitations and achieve their goals for a healthy, successful life.” Dr. MacCloud holds numerous specialty and subspecialty designations and honors. He has founded several successful multi-disciplinary wellness and medical centers, with a focus on Nutrition, Regeneration, Anti-Aging, Bio-Oxidative, Non-surgical Orthopedics (Musculoskeletal), Weight Management, Rehabilitative,…

…Integrative and Performance Enhancement Medicine).

Dr. MacCloud was paralyzed following a major near-fatal mishap. He overcame his challenges and re-learned how to breath, talk, walk, and regained 60 lbs. of lean body mass. Dr. MacCloud has re-invented himself, and directs his efforts toward developing products and services that have a positive health impact upon his clients. His most recent endeavor (in addition to being Chief Medical Officer of Eco-Systems Partners), is Body Symphony Rx, LLC, a company devoted to furthering his life mission by “Making great-tasting, healthy foods disguised as treats”. His resume of professional accomplishments regarding clinical practice as a physician, wellness training, nutrition and naturopathy, and performance enhancement is exhaustive.

Dr. MacCloud’s academic acheivements include:

  • B.A. in Psychology & Parapsychology. New College U. of South Florida, Sarasota, Fl.
  • M.S. & Ph.D. in Holistic Health Sciences. Columbia Pacific University, San Rafael, Ca.
  • N.D. (Doctor of Naturopathic Medicine). Brantridge Forest School, England in conjunction with The Center for Health and Fitness Excellence, Park Rapids, Mn.
  • D.O. (Doctor of Osteopathic Medicine). Nova Southeastern University – College of Osteopathic Medicine, Ft. Lauderdale, Fl.
  • OMMF (Osteopathic Manipulative Medicine Fellowship). An additional year of specialization in OMM consisting of treating patients and teaching OMM to 1st & 2nd year Osteopathic Medical students.
  • D.A.A.P.M. Diplomat of The American Academy of Pain Management.
  • INTERNSHIP – A traditional rotating internship at Palmetto General Hospital, Hialeah, Fl. A 460 bed facility (Tenet System approx 120 hospitals). Ranked among the top 100 teaching hospitals in the U.S. in 1998.

Vince Andrich

Vince Andrich has over twenty years of sports nutrition business experience at the executive level in the areas of general management, sales, marketing and product development.

His work is his passion. Vince has managed and built several industry leading sports nutrition brands, but is well known for his ability to “re-invent” existing product lines.
Vince has a wide range of experience, including President of Fitness Express, a leading sports nutrition distributor, President of The Andrich Group and Vice President of Sports Nutrition with Weider Nutrition International. While at Weider Nutrition International, Vince charged with the marketing, advertising, product development, seminars and internal education for all sports brands including American Bodybuilding. Vince has worked in marketing and product development for MET-Rx USA as their Director of Marketing & Communications.

Vince served EAS Vince as Director of Sports Nutrition, and authored The Sports Supplement Review, 4th Edition. Prior, Vince was VP of Sales & Marketing at Prolab Nutrition where he authored the groundbreaking, No Mistakes Guide to Building Your Best Body. Vince has published in several popular magazines including, Muscle & Fitness, FLEX. He was Senior Contributor for Muscle Media.

A former NPC National Level Competitor, Vince has held numerous titles including, overall Mr. Nevada and Mr. Las Vegas. Currently, Vince and industry veteran Ryan HornBuckle operate the consulting firm Gerstner and Associates Inc.

Alex McKechnie

Alex McKechnie is the creator of the CORE X SYSTEM. Alex has more than 40 years of knowledge, experience and innovation in sports training and strength & conditioning training.

Alex Spent over ten years as the Athletic Performance Coordinator for the Los Angeles Lakers basketball team where he was part of five NBA championship teams, and is now the Director of Sports Science for the Toronto Raptors…

…of the NBA. Alex joined the Raptors in July 2011 to oversee all athletic training, rehabilitation and strength and conditioning for the franchise.

Regarded as one of the worlds utmost authorities on Core Training and Movement Integration, Alex has worked with such professional athletes as Shaquille O’Neal, Steve Nash, Lamar Odom, Pau Gasol, Grant Hill, Mark Sanchez, Jeremy Lim, Raul Ibanez, Paul Millsap, Paul Kariya, Matt Leinart, Logan Tom, Holly McPeak, Michelle Kwan, and Owen Hargreaves with Manchester United, just to name a few.

Dr. Brian Stenzler

Dr. Stenzler is the co-founder of DREAM Wellness and opened DREAM Wellness centers in Pacific Beach and Del Mar in 2006. He has held positions on the Board for the NY Chiropractic Council, including President of Nassau County and was a member of the Executive Board. He is Immediate Past President of the California Chiropractic Association in San Diego and is presently Vice President of the entire State Association, and will begin his tenure as President of the CCA in June 2014.

Dr. Brian Stenzler earned his Doctorate in Chiropractic from Life University in 1998, and in 1999, a Master’s degree in Sports Health Science from Life University.

Dr. Stenzler was named New York Chiropractic Council’s Chiropractor of the Year, receiving the World Chiropractic Alliance’s Outstanding Service Award, and Chiropractic Leadership Alliance’s doctor of the month. Dr. Stenzler was recognized by the American Red Cross for assisting relief workers at Ground Zero following the 9/11 tragedy. His humanitarian efforts continued into San Diego where he served Chiropractic care to the firefighters of the 2007 Firestorm.

Dr. Stenzler is guest speaker at Chiropractic conferences and colleges, and lectures to businesses, schools and civic organizations. He has also been featured on television and radio shows around the country. Dr. Stenzler received the prestigious 2012 Doctor of the Year award from the California Chiropractic Association, San Diego County District.

Dr. Stenzler has been a member of the United States Golf Association’s (USGA) Wellness Team since 2009 serving Chiropractic to golfers participating in the US Open. He serves Chiropractic to many current and retired professional athletes.

William McDaniel, MD

Rear Admiral, Dr. William James McDaniel, Medical Corps, U.S. Navy, attended college on a full wrestling scholarship and received his Bachelor of Science degree in Physiology in 1964 from Oklahoma State University. In 1968 he received his Doctor of Medicine Degree from the University of Oklahoma, School of Medicine.

His subsequent duty assignments include Flight Surgeon at Marine Corps Air…
…Station, El Toro, California; Marine Corps Air Station, Futema, Okinawa; aboard USS TRIPOLI (LPH-10) off the coast of the Republic of Vietnam; and Naval Air Station, Whidbey Island, Washington.

RADM McDaniel had a series of assignments which included Chief, Department of Orthopedics, Naval Hospital, Rota, Spain; Acting Commanding Officer and Director of Clinical Services, Naval Hospital, Rota, Spain.

Rear Admiral McDaniel assumed command of Naval Hospital Charleston, South Carolina on 27 July 1988, where he was selected as Rear Admiral in November 1989. In June 1990, he became U.S. Pacific Command Surgeon, Camp H.M. Smith, Hawaii.

RADM McDaniel’s other activities include Navy Wrestling Champion, Interservice Wrestling Champion, and World Silver Medalist in CISM Games, Rome, Italy in 1974. He has been the National Team Physician for Track and Field World Championship, Rio De Janeiro, Brazil in 1976; and Team Physician, World Championship Basketball in Teheran, Iran in 1977; World University Games, Bucharest, Romania in 1981; and for the U.S. Boxing Team, LaPaz, Bolivia in 1982. Rear Admiral McDaniel was also a U.S. Olympic Team physician for the 1984 Olympics in Los Angeles, California.

Rear Admiral McDaniel’s military awards include: Defense Superior Service Medal; Legion of Merit (two awards); Meritorious Service Medal, Joint Service Commendation Medal, Army Commendation Medal; Meritorious Unit Commendation; National Defense Service Medal (two awards); Humanitarian Service Medal; Sea Service Deployment Ribbon; Overseas Service Ribbon; Vietnam Service Medal (with 2 battle stars) and Fleet Marine Force device.

Dr. Brooke Azie-Rentz, ND

Dr. Brooke is a Primary Care Physician with a specialty in women’s health and Bio-identical Hormones. Due to her undergraduate training in Physical Therapy, she also specializes in musculoskeletal system disorders. Dr. Brooke employs many modalities to treat her patients including diet and lifestyle changes, nutritional and hormonal supplementation, hands on manual therapies and various rehab modalities such as therapeutic ultrasound, IFC/TENS, hydrotherapy, trigger point injections and therapeutic exercise. Going beyond just symptomatic fixes,…

… Dr. Brooke educates her patients about their health and promotes not only optimal healing but the importance of prevention-based medicine.

Dr. Brooke grew up on the East Coast. She attended the University of New England in Biddeford, ME where she studied Physical Therapy before deciding to go to medical school. After graduating with her B.S. in Medical Health Science, she moved to Seattle in order to attend Bastyr University in 2001. After 4 years of medical school, Dr. Brooke’s plan to move back East was interrupted when she met her future husband, Jashar. Not to mention she had come to love everything the Pacific Northwest had to offer. After working in Redmond for 4 years, Dr. Brooke moved to Sammamish to open her private practice in 2009 before opening Alpine Integrated Medicine in 2011 with her partner Nichole Santoro, LAc.

Always looking to improve her clinical skills, Dr. Brooke continues her studies through additional coursework and by attending medical conferences. In addition, she tries to give back to the profession by mentoring students. In 2009, she was awarded the honor and privilege of supervising one of only two Naturopathic residents chosen nationwide through the STAIR residency program. Dr. Brooke maintains professional memberships with the American Association of Naturopathic Physicians (AANP) and the Washington Association of Naturopathic Physicians (WANP).

Dr. Brooke lives in Duvall with her husband, Jashar, two beautiful children, Irie and Bodhi, their dogs and chickens. Although the last couple of years have been more homebound with the babies, Dr. Brooke likes to spend her free time enjoying the great outdoors and spending time with friends. Luckily, out in Duvall, there is plenty of opportunity to keep busy with gardening and home improvement