Make your next years your best years

with our full-body suite of age management solutions

Over 35,386 men + women are living their lives to the fullest with Cenegenics.


Cenegenics is the leader in age management medicine with physicians who are the leading authorities in the field


In a recent study, Cenegenics members had an average decrease of 30% in body fat percentage


Physicians trust us with their health + their families health. They make up 25% of our elite memberships


Founded in 1997, Cenegenics established Age Management Medicine and is both highly regarded in the medical community and the indisputable clinical leader in our field.

We offer a comprehensive, scientific approach to medicine, looking where others usually don’t. Optimal health, not disease, is our primary focus. We bridge the gap between conventional medicine and scientifically based proactive prevention.

Patients who commit to the program experience dramatic changes in their health and vitality; decreasing body fat and increasing muscle tone, improving insulin and cholesterol levels, increasing physical and sexual vitality, managing stress and improving mental sharpness and sleep quality.

Cenegenics doesn't subscribe to traditional medicine’s fix-it-when-it’s broken and diagnose-and-treat philosophies. Instead, we offer proactive, preventive medical care, enhancing health rather than waiting for age-related diseases such as diabetes, high blood pressure, heart attacks and strokes to appear.

Corporate Headquarters


United States

Elissa M. Calapai, D.O.

From 2001 to 2005, Dr. Calapai practiced both office and hospital based internal medicine at North Broward Hospital District, and at Holy Cross Medical Group from 2005 to 2007.

B.S. in biology from Fairfield University in Fairfield, CT
Doctor of Osteopathic Medicine from Nova Southeastern University: College of Osteopathic Medicine in Fort Lauderdale, FL.
Internship at Miami Heart Institute
Residency in Internal Medicine at Cleveland Clinic (FL and OH).

Paul Campion, M.D.

From 1989 to 1993, he was an assistant clinical professor at the California Pacific Medical Center (San Francisco) and later developed a solo ophthalmology/eye wellness practice in Petaluma, CA.

Education and Credentials: 
Fellow of the American Board of Ophthalmology with medical licenses in California and Nevada. 
M.D. from George Washington University
Internal medicine internship at the Huntington Memorial Hospital (in Pasadena, under the auspices of the University of Southern California)
Ophthalmology residency at George Washington University.

Dr. C.B. Daniel 

34 years of clinical experience in the practice of general internal medicine. He spent four years as Chief Financial Officer at ATMDS, which provides onshore and offshore coding solutions for hospitals and emergency rooms. Chairman of Critical Pathways Committee at Methodist Central Hospital Member of the American College of Physicians and the American Society of Age Management.

Education and credentials:
BA in biology at Rhodes College, Memphis, TN, in 1970
MD, University of Tennessee Medical School, Memphis, TN, in 1973, 
Internship at Methodist Hospitals of Memphis 
Residency in internal medicine at Methodist Hospitals of Memphis from 1975-1977.

Garth Denyer, M.D.

Started the Oaks Medical Center, where most of his practice centered on internal medicine.

Education and credentials:
Dr. Garth Denyer graduated from the University of Cape Town in South Africa in 1973. From 1973 until 1978, he completed his residency in internal medicine in South Africa and Canada. In 1981, he moved to The Woodlands, TX, and started the Oaks Medical Center where most of his practice centered on internal medicine.He became a Cenegenics patient over ten years ago, and because of the personal success he had, he started taking an active interest in age management. He completed the Cenegenics training and certification process and opened his office in The Woodlands in 2007. On July 1, 2011, he became a Cenegenics partner and officially opened Cenegenics Medical Institute of Houston. In his ongoing quest for knowledge, he has attended many motivational conferences to learn more about positively influencing his patients’ habits to help them change and meet their personal health goals.

Earl H. Eye, M.D., FAACP

For the past three decades, Dr. Eye was the senior partner at the Clinic for Pulmonary and Infectious Diseases. He also was an associate professor at the University of Florida-Shands Hospital and chairman of the Infectious Disease Committee at Jacksonville’s Methodist Hospital.

Education and Credentials:

M.D., West Virginia University School of Medicine, graduating magna cum laude. Internships at Montefiore Hospital (Pittsburgh, PA)
Residency at the University of Florida-Shands Hospital (Jacksonville, FL), Fellowships in infectious diseases, pulmonary diseases and critical care.

Keith Fleischman, D.O.

Selected a “Top Doc in NJ” in the field, in a poll of nurses by New Jersey Magazine and held the position of section chief of obstetric anesthesia.

Education and credentials:
Graduate of University of New England College of Osteopathic Medicine Completed anesthesiology residency at St. Barnabas Medical Center in Livingston, NJ,  Recipient of Robert Dripps award for the outstanding resident in anesthesiology.  Postgraduate training in obstetric anesthesia and critical care.

Lynn Flowers, M.D.

During his residency, he joined the US Navy Reserves and went on active duty after training. Dr. Flowers has also served as clinical faculty for the US Navy, Eastern Virginia Medical School and for Emory University School of Medicine.

Education and Credentials:

Completed medical school at the University of South Carolina School of Medicine. Internship in general surgery. Residency in emergency medicine at the Eastern Virginia Medical School, where he served as Chief Resident. Certified, American Board of Emergency Medicine
Certified, American Board of Anti-Aging and Regenerative Medicine.

Raymond Ishman, M.D.

He focused on a career in emergency medicine, eventually becoming board certified. After nearly 20 years in the emergency room, Dr. Ishman shifted his focus back to primary care and preventive medicine. His goals are to keep patients well and prevent disease, rather than trying to deal with full-blown medical problems that could be prevented. In other words, keeping patients out of the emergency room.

Education and Credentials:

Undergraduate degree in biochemistry from the University of Pittsburgh Medical degree from Jefferson Medical College
Residency and board certification in family medicine at Geisinger Medical Center.

Dr. Jeffrey Leake

Jeffrey Park Leake, M.D., is a senior physician in clinical practice at Cenegenics Elite Health in Las Vegas, Nevada, where he specializes in age management medicine and serves as Director of Education for the Cenegenics Education & Research Foundation. He has trained over 800 physicians worldwide in Age Management Medicine and is author of Textbook of Age Management Medicine Vol I & II, a comprehensive reference with over 3500 literature citations.

Education and Credentials:

He completed his undergraduate degree at the Ohio State University with a major in molecular genetics. He went on to do research in oxalate metabolism in the Department of Physiological Chemistry at OSU and teach biochemistry to first-year medical students at the Ohio State University College of Medicine. He received his Doctor of Medicine at OSU, and entered an anesthesiology residency at the Ohio State University Hospital, becoming chief resident and later accepting a faculty appointment as a clinical instructor in anesthesiology. After completing his board certification in anesthesiology, he spent 27 years as a practicing anesthesiologist at Harrison Medical Center in Washington, becoming the first Director of Surgical Services there. In 2009, Dr. Leake transitioned from a career in anesthesiology to join Cenegenics as a clinical physician in age management. His interest in exercise and fitness developed naturally from his athletic career while at OSU. He received certification by the International Sports Sciences Association as a personal trainer and by Precision Nutrition as a PN1 Certified Nutrition Specialist. His personal fitness regime includes weight training, plyometrics, yoga, sprint interval training, equestrian sports and Krav Maga. He is a member of the Endocrine Society and International Menopause Society.

Robert Ledda, M.D.

After completing Med School and Residency, he practiced for 25 years at Central Peninsula Hospital in Soldotna, AK.  While practicing, he ultimately built an Alaska Fishing resort, and continues to own and operate that facility.  He is also a commercial Alaskan Bush pilot.  For 15 years he was co-director of the Kenai Peninsula EMS system.  In 2013, concern about his own health prompted his training with Cenegenics in Age Management Medicine.  His own success caused him to go forward with completing a Fellowship and becoming a Partner.  He has resigned from his previous positions in Soldotna and now manages his growing Cenegenics Wellness clinic practice, fishing lodge and works part time emergency medicine in the quiet town of Sidney, MT.

Education and credentials:
Graduated in 1990 from UT Southwestern Medical School
Board certified emergency medicine physician in Soldotna, Alaska.

Julia A. McCallen, M.D.

From 1996 to 2009, Dr. McCallen’s solo rural family practice in southwestern Colorado focused on wellness and corrective hormone therapy.

Education and Credentials:

Undergraduate degree in Biochemistry from Cornell University
M.D. from the University of Pittsburgh School of Medicine in 1990. Residency in family medicine at the University of Wyoming-Casper in 1993. Served as a civilian physician with the Air Force in emergency medicine for 3 years. Board-certified in family medicine
Member of the Endocrine Society, the International Hormone Society, American Academy of Family Physicians, and the Age Management Medicine Group.

Steven A. Fein, M.D., FACG

Since 2013, Dr. Fein has achieved great success as a patient on the Cenegenics Elite program. It is his success on the program that has motivated him to practice Age Management Medicine with Cenegenics.

Education and credentials:
Board certified in Gastroenterology, Internal Medicine, Advanced Bio-Identical Hormone Therapy and Age Management Medicine. Dr. Steven A Fein attended medical school at the University of Florida. He did his Internal Medicine training at Baylor College of Medicine and his Gastroenterology training at the University of Texas Medical School. Dr. Fein has been practicing Internal Medicine/Gastroenterology in the Houston area since 1981.

Shabab Mokhtare, M.D.

Early in his career, Dr. Mokhtare realized his passion for preventive medicine and patient care—seeing age management medicine as a perfect fit.

Education and Credentials:

B.S., University of California Irvine, Medical degree from Ross University School of Medicine Family medicine practice at the University Of Nevada School Of Medicine. Training and certification in age management medicine via the global leaders in the field, Cenegenics.

Bhavesh K. Patel, M.D.

Bhavesh continues to stay connected to “traditional” medicine. Doing so allows Dr. Patel to continue to grow as a physician who can treat disease when it happens, while also working on preventing disease in the first place.

Education and credentials:
1999: graduated from Rush Medical College (Chicago, IL) 
2002: Residency at UIC / Illinois Masonic Medical Center (Chicago)
Practiced extensively in the Chicago area with Advocate Healthcare, Dreyer Medical Group, and Physicians Immediate Care.
Board certified in family medicine and certified by the Cenegenics Research & Education Foundation in Age Management Medicine. 

Bina J. Patel, M.D.

From 1994 to 1995, Dr. Patel was an assistant professor of medicine at Temple University Hospital. She then became an attending physician at the Carle Clinic Association in Bloomington, Illinois. While there, she was also an assistant professor of medicine at the University of Illinois, Urbana-Champaign.

Education and Credentials:

Medical degree from University of Southampton Medical School in Southampton, England. Internship in internal medicine at Hahnemann University Hospital. Residency in internal medicine at Temple University Hospital. Fellowship in Integrative Medicine at University of Arizona.
Board certified and a Diplomate of the American Board of Internal Medicine. Board Certified Integrative Medicine and Diplomats of American Board of Physician Specialties. Trained in Functional Medicine – Institute of Functional Medicine.

John J. Rush, M.D.

His medical executive positions have included chief financial officer at Wake Emergency Physicians, vice president of Medical Affairs at Coastal Physician Services (NYSE: DR), medical director at CIGNA Healthcare (NYSE: CI), senior vice president of Health Services at PacificCare Health Systems (NYSE: PHS), and chief medical officer at Hanger Orthopedic Group, Inc. (NYSE: HGR).

Education and credentials:
Bachelor’s of Science in Integrated Life Sciences from Kent State University (Kent, Ohio) Medical degree from Northeastern Ohio Universities College of Medicine (Rootstown, Ohio).
Emergency medicine internship and residency at Loma Linda University (Loma Linda, California)  Board certified by the American Board of Emergency Medicine. MBA/MHA, Pfeiffer University (Charlotte, North Carolina).

George Shapiro, M.D.

Always challenged by the need for innovative medicine, Dr. Shapiro has patented medical devices as well as explored and innovated new medical protocols. He has long been known as one of New York’s foremost cardiologists, specializing in regenerative medicine and improving longevity, including the genomics of cardiovascular disease and congestive heart failure.

Affiliated with New York Presbyterian Hospital and an Adjunct Assistant Clinical Professor in Clinical Medicine at New York Medical College, Dr. Shapiro is active in 13 medical societies, has been a speaker for the Age Management Medicine Group (AMMG) group for many years, and is a long-standing member of the AMMG Conference Planning Committee. Dr. Shapiro was named a 2018 Top Doctor in New York City.

Education and Credentials:

Dr. Shapiro has been a practicing physician for 28 years, specializing in Internal Medicine, Cardiovascular Disease and Age Management Medicine. His career in medicine began in 1988 when he graduated from New York Medical College. An internship and residency then followed at Albert Einstein College of Medicine, after which Dr. Shapiro completed a fellowship at Columbia University College of Physicians and Surgeons in 1994, focusing on Cardiovascular Disease Management, including Congestive Heart Failure and Heart Transplantation. 

Patrick Sharp, D.O.

He practiced his specialty at several hospital groups: St Francis Hospital, South Crest Hospital and Ardent Health Systems.

Education and credentials:
Graduated from the University of Oklahoma College of Pharmacy Earned D.O. degree from the Oklahoma State University College of Osteopathic Medicine. Completed a family practice medicine residency at Oklahoma State University.

Stephanie Singer, D.O., FACOG

A long way from NYC, where she was born, schooled and trained, Dr. Singer brought her knowledge and experience from the challenges of inner city patient care to beautiful Park City, Utah where she provides patients with cutting edge technology and individualized care. Dr. Singer created Park City Gynecology, and Park City Medesthetix, OB/GYN practice and medical spa, and has expanded her scope of practice to Age Management Medicine with Cenegenics since 2013.

Education and Credentials:

Board certified in OB/GYN with her undergraduate degree from S.U.N.Y. at Stony Brook.
Attended medical school at the New York College of Osteopathic Medicine
Residency at L.I.C.H. in Brooklyn, New York, from 1993 – 1997.
Board certified by A.B.O.G. and an ACOG fellow since 1999.
Associate member of the American Academy of Cosmetic Surgery.

Claudia Villate, M.D.

Served as staff physician at the Auxilio Mutuo and Pavia Hospitals. She also worked for AeroJet Medical Services, transferring critically ill patients all over the world. Concurrently, she became a certified medical review officer, spending two years working in the field of preventive and occupational medicine for important corporations operating in Puerto Rico.

Became Staff Internist at the Veterans Administration Hospital in San Juan for 4 years and, in addition to her clinical duties she served as professor for the Internal Medicine Residency Program of that institution. As chairman of Quality Performance at the VA Hospital, her objectives were always directed towards age management and preventive medicine for the aging veterans.

Education and credentials:
Internship and residency of internal medicine at George Washington University Hospital, in Washington, D.C. Selected Chief Resident in the Department of Internal Medicine. Board certified in internal medicine.

Rolf Wallin, M.D.

In 1988, Dr. Wallin went to Fayetteville, N.C. and started a new Cardiac Surgery program, coordinating the development of the Cardiac Anesthesia department, the Cardiac OR’s and the Cardiac ICU. After several years, he transitioned to Outpatient Anesthesia, where as President of the practice, he served in both an administrative and clinical capacity. After 30 years of anesthesia practice, he has chosen to make the exciting field of Age Management Medicine his primary focus.

Education and Credentials:

B.A. in Chemistry from the University of North Carolina at Chapel Hill in 1980 Medical Degree from the University of North Carolina School of Medicine in 1984 Anesthesiology Residency in 1987 at UNC Hospital
Cardiothoracic Anesthesia Fellowship in 1988, spending time at both UNC Hospital and Duke University Hospital Diplomate of the American Board of Anesthesiology, 1988. Member of the American Society of Anesthesiologists, the North Carolina Society of Anesthesiologists, the North Carolina Medical Society, the Age Management Medicine Group and the American Academy of Anti-Aging Medicine.

George Weiss, M.D.

In 1985, Dr. Weiss established Personalized Medical Weight Loss Centers. He was also the founder and CEO of Southern California Men’s Centers.

Education and Credentials:
Graduated from Wayne State University (B.S. Psychology), U.A.G. and Rutgers Medical. Finished his residency at UCSD Medical Center.

Beth Traylor, M.D.

Dr. Traylor has been a Board certified family physician since 1987. During her 30+ year career as a practicing physician, she has focused on women's health and hormone replacement therapy.

Dr. Traylor earned her certification in age management medicine in 2002 and has practiced with the internationally renowned, Cenegenics Elite Health Group, as a Senior Institute Physician since that time.

Dr. Traylor has served as the President of the Board of the Cenegenics Education and Research Foundation, whose mission is to train doctors from across the globe how to apply the science of age management medicine and to support research in the field.

Education and Credentials:
Dr. Traylor graduated with her medical degree from The Chicago Medical School/ Rosalind Franklin University of Health Sciences in 1984. She completed her residency in family medicine at St. Joseph Hospital in Chicago, IL, a Northwestern University affiliate program.

She is a Fellow of the American Academy of Family Physicians, a Diplomate of the American Board of Family Medicine, a member of the International and North American Menopause Societies, the American Society for Nutrition, The Endocrine Society, and The American College of Preventive Medicine.



Dr. Jorge Arriola

For the past 23 years, Dr. Arriola was General Surgery Specialist in Minimal Endoscopic Surgery In the best Hospitals In Mexico City, Mexico. He also was an associate professor In Minimal endoscopy Surgery, at the National University Autonoma of Mexico and Medical Director of the DAAM Clinical Center. Director of the Societé Francais de Assistance Mexico, Caribbean, Venezuela and Centroamerica.

Education and credentials:
M.D., La Salle University School of Medicine, graduating with honors.
Internships at American British Cowdray Hospital (Mexico City, MX)
Residency in General Surgery at the American British Cowdray Hospital (Mexico City, MX), Fellowships in Minimal endoscopy surgery and Age Management Medicine, Board of general Surgery Counsil of Mexico, Fellow of the Society for Surgery of the Alimentary Tract MA, Diplomated in Football Medicine of the Federation Internationale of Football Association (FIFA). Member for the Age Management Medicine Group (AMMG).

Julia Gouvea, M.D.

She has worked as staff member of several hospitals: Santa Casa, Unimed, Sepaco, Santa Marcelina. She has also seen people in need at SUS, the Brazilian public health system. After training and certifica­­­tion in Age Management Medicine and Sports Medicine, ­Dr. Gouvea decided to help people have a better lifestyle, vitality, and longevity.

Education and credentials:
Medical degree from University Camilo Castelo Branco in São Paulo, Brazil.M.S. in Biotechnology from University Potiguar, Brazil.
Post graduation in Sports Medicine from Unifesp, São Paulo, Brazil.­­
Board certified in Sports Medicine by Brazilian Society of Sports Medicine. Brazilian Society of Endocrinology fellow.
Trained in Age Management Medicine at University Anhembi Morumbi, São Paulo, Brazil.


Cenegenics physicians take a 100% personalized + comprehensive approach to weight loss. They incorporate scientific, evidence-based tactics to ensure clients meet their weight loss goals AND keep the weight off for the long term.

Other Ways Our Physicians Can Help Improve Your Health