Stem MD is an inter-disciplinary national medical practice run by world-renowned physicians and surgeons who are leaders in their respective fields and pioneers in regenerative medicine.

Call For A Free Consultation Now



Dr. Joseph Purita

Chief Medical Officer
Orthopedic Surgeon

Dr. Joseph Purita is a pioneer within the orthopedic surgery community, and his passion to find better, more improved methods of helping heal patients has led him to the field of stem cells and regenerative medicine.

Read More

Dr. Purita has lectured internationally on five continents regarding the healing effects of stem cells and has been instrumental in helping some countries design their policies concerning the use of regenerative medicine; effectively bringing this unique and advanced practice to more people throughout the world. As one who is never attempting to rest on his laurels, he seeks to constantly improve and elevate the status quo.

Based out of Boca Raton, FL, Dr. Purita, MD graduated from Georgetown University Medical School and served his surgical internship at the University of Florida Medical Center. Following the completion of a residency in orthopedic surgery at University of Miami-Jackson Memorial Hospital – where he served as chief administrative resident – Dr. Purita joined the Boca Raton Orthopedic Group in 1981, where he’s been practicing ever since.

Dr. Purita is a member of the following professional organizations:

  • Fellow, American Academy of Orthopedic Surgeons
  • Fellow, American College of Surgeons
  • American Medical Association
  • Southern Medical Association
  • Palm Beach Medical Society
  • Broward County Medical Society
  • Palm Beach Orthopedic Society
  • Florida Medical Association
  • Korean Stem Cell Association
  • American Academy of Regenerative Medicine


Dr. Edward S. Magaziner

Pain Medicine

Dr. Ed Magaziner is considered one of the foremost pioneers in the area of orthopedic regenerative medicine, and has passionately been helping people with musculoskeletal injuries since 1989. By using minimally invasive

Read More

interventional surgical techniques under live ultrasound and fluoroscopic guidance, he is able to reach his goal of repairing, regenerating, and eliminating injury and pain along with its causes.

So well-known is Dr. Magaziner that patients seek him out from six surrounding states including New Jersey and New York. Patients have even traveled from as far as Canada, Europe, and South America to seek his unique expertise. From athletes and musicians to golfers and weekend warriors, Dr. Magaziner’s cutting edge orthopedic regenerative medicine techniques allow him to help everyone experiencing pain and injury.

Starting out as a Physical Therapist, Dr. Magaziner went on to complete a year of surgery in a John Hopkins affiliated hospital and finished his residency as Chief Resident at New York Medical College in 1989.

He is currently an Assistant Professor at New York Medical College and a Clinical Professor at Robert Wood Johnson University and enjoys teaching residents and fellows.

Other accolades and experience includes the following:

  • Past President of the New Jersey Society of Physical Medicine and Rehabilitation and ongoing Legislative Chairperson
  • Delegate to the New Jersey Medical Society andmember of the Legislative committee
  • Executive Board member and Secretary of the Middlesex County Medical Society and sits on the legislative and ethics committees.
  • Carrier Advisory Committee Representative fromNew Jersey to Medicare from the PMR Society.
  • Past Vice President of the New Jersey Subspecialty Society
  • Member of the new Jersey Medical Practice Committee
  • Executive Board Member of the Electrodiagnostic Association of NJ
  • Board Certified in Physical Medicine and Rehabilitation
  • Subspecialty in Pain Medicine
  • Board Certified through the Amer Academy of Pain Management
  • Board Certified in Minimally Invasive Spine Surgery through the Royal College of Physicians and Surgeons
  • Board Certified in Physical Therapy and licensed in New Jersey


Dr. Steven A. Stein

Pain Medicine & Anesthesiogist

Specializing in diagnostic and therapeutic spine interventions, Dr. Steven Stein has been providing back relief to the South Florida community since 1994. After completing his anesthesiology training at

Read More

Thomas Jefferson University Hospital in Philadelphia, Pennsylvania, he became a Fellow of Interventional Pain Practice and board certified by the American Board of Anesthesiology, American Board of Pain Medicine, and one of the selected few in South Florida who is Board Certified by the American Board of Interventional Pain Physicians.


Dr. Ralph J. Venuto

Orthopaedic Surgery

Dr. Ralph J. Venuto’s passion is getting players back out on the field, ready to do what they do best – competing and winning. Having performed more than 10,000 knee and shoulder arthroscopy sports related injury surgeries

Read More

since 1974, Dr. Venuto knows what it takes to keep people in the game. He is also one of the first surgeons to perform the Carticel Implant Surgery (ACI), which uses a patient’s healthy cells to repair cartilage defects. From college athletes to professional competitors, Dr. Venuto’s expansive knowledge and experience in the sports medicine arena has earned him the reputation as one of the best doctors in Orange County, California.

Dr. Venuto received his medical degree from Jefferson University Medical School in Philadelphia in 1997. He completed his general surgery internship and residency at UCLA from 1967 to 1969. He completed his orthopedic residency at Columbia University in New York in 1972, and became a board certified orthopedic surgeon in 1973.

Dr. Venuto ‘s certificates include the following:

  • International Society of Arthroscopy, Knee Surgery, and Sports Medicine
  • American College of Sports Medicine
  • American Orthopedic Society for Sports Medicine
  • Dr. Venuto is a member of the following:
  • North American and International Arthroscopy Association
  • The American Orthopedic Society for Sports Medicine
  • California Medical Association
  • Orange County Medical Association


Dr. Marc Matarazzo

Sports Medicine & Arthroscopic Surgery

If anybody is equipped to keep players performing at their best, it’s Dr. Matarazzo. After earning his medical degree at Temple University School of Medicine and completing his general surgery internship and orthopedic surgery

Read More

residency Pennsylvania and Hahnemann University, Dr. Matarazzo ended up in New York where he served as Assistant Team Physician for the New York Jets and New York Islanders, as well as for the Hofstra University and Hunter College Athletic Departments.

Having been practicing since 2002, Dr. Matarazzo has developed an intense interest in minimally invasive techniques including smaller incisions and arthroscopy, as well as cartilage restoration and preservation. He also specializes in complex shoulder, hip, and knee injuries. He has lectured and presented extensively both nationally and internationally on many sports medicine topics including ACL Reconstruction, Arthroscopic Rotator Cuff Repair, Achilles Tendon Repair, and Ligament Reconstruction of the Elbow.

Currently, Dr. Matarazzo serves as the team physician for the following:

  • Palm Beach Atlantic University
  • Palm Beach State College
  • Park Vista High School
  • Boynton Beach High School
  • Spanish River High School
  • Village Academy
  • Santaluces Community High School
  • Consultant for Prime Time Sports in Boca Raton, Florida

Dr. Matarazzo is an active member of the following:

  • American Orthopedic Society for Sports Medicine
  • Fellow of the American Academy of Orthopedic Surgeons


Dr. Matarazzo is a Board Certified Orthopedic Surgeon currently overseeing the Rehabilitation Department at the Orthopedic Center of Palm Beach County.


Dr. Robert Biscup

Minimally Invasive Orthopedic Spine Surgery

Dr. Robert Biscup is one of those people who likes to succeed where others have failed. Specializing in major reconstructive, minimally invasive spine surgeries, including laser microsurgery and micro-decompression laminoplasty.

Read More

Dr. Biscup gives people a second chance at solving their spinal problems. Highly renowned for his surgical techniques, instrumentation, and implants, Dr. Biscup has been invited to lecture throughout the United States and Europe and is internationally recognized for his developments in major reconstructive spine surgery, back surgery, and minimally invasive spine surgery.

With more than 25 years of practice under his belt, Dr. Biscup is most at home treating his patients at his state-of-the-art spine treatment facility in Fort Lauderdale, Florida.

He earned his Bachelor of Arts degree and Department Honors in Chemistry from Hiram College. He obtained his Masters of Science in Health Sciences Education at Case Western Reserve University, and received his medical degree at Ohio University College of Osteopathic Medicine. He is currently board certified in orthopedic surgery and is a fellow of the American Osteopathic Academy of Orthopedics.


Dr. Bal Rajagopalan

Orthopedic Surgeon

Raj is a Double Board Certified Los Angeles Orthopedic Surgeon who has been in private practice for 10 years. He has completed close to 4000 Orthopedic Surgical Cases in his short career and works with over 500 patients per month.

Read More

Orthopedic Surgeon

Los Angeles
American, Canadian and Dubai Board Certified

Legal Specialists (Trial, Testimony, Deposition, IME)
Subspecialty – Hip and Knee Surgery Los Angeles and Sports Surgeries


Hospital Privileges

  • Linden Surgery Center, Beverly Hills, CA
  • Miracle Mile Medical Center, Beverly Hills, CA
  • Olympia Hospital, Beverly Hills, CA
  • Hollywood Community Hospital, Culver City, CA
  • Mission Community Hospital, Panorama City, CA



  • Undergraduate Dalhousie University, Halifax, Nova Scotia, Canada
  • 1991, BSC Chemistry
  • Medical Education
  • Memorial University PGME
  • St. John’s, Newfoundland, Canada
  • May 1995, M.D.


  • Memorial University PGME, Canada
  • Department of Orthopaedic Surgery
  • July 1995 – June 1996


  • Memorial University PGME, Canada
  • Department of Orthopaedic Surgery
  • July 1996 – June 2000
  • Medical Licensure
  • State of California – License A72861
  • Dubai, UAE – License: Dubai Health Authority


Memberships in Professional Societies

  • American Board of Orthopaedic Surgery
  • California Orthopaedic Association
  • American Academy of Orthopaedic Surgeons
  • Royal College of Physicians and Surgeons in Canada
  • ABC News Medical Consultant
  • Iraq Star Volunteer
  • Co-Founder – Hope And Dream Charity for Underserved Kids With Obesity
  • WebMD – Hip and Knee Expert
  • WebMD – Medical Review Board Committee



  • Consultant Editor for Web MD Hip and Knee Replacement Community
  • ABC News Medical Consultant
  • Expert for The Globe and National Enquirer
  • featured Medical Expert 2011
  • DIME—NBA MAGAZINE: 2010 and 2011 Medical Expert
  • The Echelon Charity Club- Advisory Board

Credential Committee
California Hospital
Los Angeles, CA

Surgery Executive Committee
California Hospital
Los Angeles, CA


Head of Orthopaedic Surgery for Healthcare Partner

California Hospital Medical Center

Beverly Hospital
Los Angeles, CA

uly 2001 – September 2002


Lead Orthopaedic Surgeon

Health Care Partners
Los Angeles, CA

July 2001 – September 2002


Member of HAUTE MD International Magazine = Leading Physicians of the world



  • Fellow of American Academy of Orthopedic Surgery (FAAOS) – 2004
  • Board Certified American Board of Orthopaedic surgery – June 2003
  • Board Certified Royal College of Orthopaedic Surgeon of Canada – June 2001
  • Advanced Orthopaedic trauma AO/ASIF Certified 1998
  • ATLS/ACLS Certified 1996
  • Board Certified in Dubai, United Arab Emirates, as an Orthopedic Surgeon


Scholarships and Awards

  • Leading Physician of the World
  • Haute MD- 2011, 2012 featured as Top International Doctor
  • Newsweek Magazine 2011- featured Top Physician in California
  • SuperDoctors – Southern California 2012, 2013, and 2014
  • United Hemispheres Magazine – America Top Doctor 2011
  • Dr. Raj Top Doc LA 2010 – FOX
  • Americas top orthopedists 2007, 2009, 2010, 2011, 2012, and 2013 – American counsel of research
  • Global Directory of Who’s Who – Appointed 2006
  • Analysis of Neural Trauma due to Percutaneous Pin Fixation” – 2nd prize at Memorial University research forum – 1999 and top Orthopaedic Surgical paper
  • Competitive British Commonwealth Scholarship 1994
  • Memorial Medical School Scholarship 1994
  • Rutger’s Scholarship 1992
  • Belle Crowe Scholarship Chemistry 1991
  • Dean’s List 1991-1998 (Dalhousie University)
  • Highest academic standing recognition in calculus 1990
  • National Academic standing recognition in calculus 1990
  • National Canada Scholarships offers to Dalhousie, McGill, Acadia and University of Toronto
  • Universities
  • National Canadian Ergonomics and Biomechanics award 1987



  • Radio Talk Show:, RE: Stem Cell Therapy
  • ABC: Good Morning America, RE: Stem Cell Therapy
  • The Doctors: CBS- appearance 2010, 2011, and 2013
  • Expert on America Now news
  • Lifestyle Talk Radio network: recurring host
  • Lakers Radio- discussion, RE: PRP and Kobe Bryant
  • Sports 360 Magazine- Review on Sports Injuries
  • Shape Magazine- Interview for Stem Cell Therapy
  • USA Today- Interview RE: Plantar fasciitis
  • Men’s Health News- Interview on training magazine
  • Front cover of Beverly Hills Times- featured RE: Hopes and Dreams Charity
  • SoFit Magazine- Interview on staying fit
  • A Thousand Ways to Die (7 Episodes)
  • ABC News 2010 – Hiking Safety
  • CBS – The Doctor’s – 2011 – Weekend Warrior
  • CBS – The Doctor’s – 2010 – Knee Replacement
  • Fox News 2010 – Knee Pain
  • Fox News 2010 – Back Pain
  • California Hospital Medical Center – Talk on new technology around knee replacement / 2010
  • Spike TV appearance discussing amputation injury as a consultant on air / 2009
  • Co-director / consultant with Zephry Productions for pharmaceutical commercial campaign / May 2009
  • Century City Hospital – Carpal tunnel syndrome / Feb 22, 2007
  • – Article on medlegal issues around hip replacements / 2005
  • Golds Gym – The Impact of Fitness for Orthopedic Conditioning / Feb 24,2005
  • San Diego International Hip Symposium – Presented and lectured to audience on Zymueller
  • Steam / 2003
  • VQ Orthopaedics – Management of Knee Arthritis / Feb, 2006
  • NBC News – Discussing new advances in ceramic hip replacements / 2003
  • Multiple Community Talks on Hip and Knee Replacement /
  • Los Angeles, Modesto / 2002 – Current
  • Moderator and Speaker at International Hip and Knee Conference DJO Surgical in Utah


Dr. Steven Richeimer

Pain Medicine & Anesthesiogist

With over fifty publications under his belt and as an editorial board member for journals including “Pain Medicine” and “Pain Physician” Dr. Steven Richeimer is an absolute authority on pain assessment and management, pain

Read More

pharmacology, and pain treatment procedures.

After earning a Bachelor degree with Distinction at Stanford University, Dr. Richeimer went on for medical training at UCSF, UCLA, and Harvard Medical Schools. After that he became the Director of the UC Davis Pain Center and the Saint John’s Medical Center Pain Program.

Within his career, he has been awarded the following accolades:

  • The National Quality Forum – Technical Panel: Quality of Cancer Care Measures in Symptom Management & End of Life Care.
  • Award of Excellence for the USC/Norris CARE Team, Southern California Cancer Pain Initiative

He has been named as one of Consumer’s Guide Top Doctors, a Castle Connolly Top Doctor, a Super Doctor, and a US News Top Doctor.


Dr. Ian M Schaja

Pain Medicine & Anesthesiogist

One of the select few in South Florida who is Board Certified by the American Board of International Pain Physicians, Dr. Schaja has a long and illustrious reputation serving the South Florida community since 1995.

Read More

After completing his anesthesiology training at Thomas Jefferson University Hospital in Philadelphia, Pennsylvania, he went on to complete his residency in which he was named Chief Resident by the attending staff during his final year.

He is additionally Board Certified by the American Board of Pain Medicine and American Board of Anesthesiologists. Dr. Schaja has also conducted numerous research studies with major pharmaceutical companies as a principal investigator.


Dr. Hyun Hong


Dr. Hyun Hong believes in treating the whole person. He does this by not only offering intervention procedures and medical management, but also by providing nutrition and exercise advice, psychological counseling, and prayer,

Read More

effectively treating not only injuries, but the physical, nutritional, mental, and spiritual person as well. Dr. Hong completed an internal medicine internship at Legacy Hospitals Portland, Oregon. He went on to undergo anesthesiology training at the University of Washington in Seattle founded by John Bonica, the originator of multidisciplinary pain management. After practicing anesthesiology in the private sector, Dr. Hong returned for further training in interventional pain management at the world-renowned Texas Tech Pain Institute under Gabor Racz, who created the Racz procedure.

He is double board certified in Pain Management and Anesthesiology.


Dr. Kevin Darr

Orthopaedic Surgeon

Always at the forefront of the latest, most promising innovations, Dr. Kevin Darr seeks to perpetuate the evolution of modern sports medicine through the use of ground-breaking treatments. Dr. Darr has been treating injuries such as arthritis,

Read More

tendonitis, and ligament tears successfully for years. His use of out-of-the-box techniques such as ultrasound guided Platelet Rich Plasma (PRP), Bone Marrow Aspirate Therapy, Lipoplasty, and Cytokine Therapy has earned him a stellar reputation as an expert in his field.

Based out of Covington, LA, Dr. Darr completed a sports medicine fellowship and joint replacement fellowship at The New England Baptist Hospital in Boston, Massachusetts and attended Louisiana State University for medical school and residency training.

Dr. Darr is a board certified in:

  •  Orthopedic Sports Medicine
  •  Orthopedic surgery
  • Musculoskeltal Ultrasound


Dr. Harvey Plosker


For over 20 years, Dr. Harvey Plosker has been taking the pain away in the South Florida area. After starting the pain management center at the Boca Raton Outpatient Surgery and Laser Center back in 1992, Dr. Plosker has

Read More

helped many people overcome their pain and live a more fulfilling life.

Dr. Plosker completed his residency in anesthesiology at Mount Sinai Medical Center in New York in 1984. He completed an anesthesiology fellowship at Columbia Presbyterian Medical Center in 1985, and is currently board certified in Anesthesiology and Pain Management.