Overview
Philosophy of care | I am passionate about orthopedic sports medicine. Successfully caring for athletes and patients from all walks of life is extremely rewarding to me. I enjoy helping people get back to the activities and lifestyle that make them happy and give them strength. I will spend time with you to understand your problem and help you get better. | Why I entered medicine | Growing up in Allentown, I did not have a lot of exposure to orthopedics, as no one in my family worked in medicine. But I’d always loved working with my hands and began to excel in the sciences in school. Fortunately, I found orthopedics through a shadowing opportunity, fell in love and have never looked back. I feel extremely fortunate. I am team physician at Lafayette College, and was assistant team doctor for the Los Angeles Lakers, the Los Angeles Kings and the Los Angeles Dodgers. Medicine has offered me the great opportunity to help others while presenting exciting new challenges every day. | Personal interests | I love spending time with my wife and two children, traveling and playing sports. I grew up as a competitive swimmer, so love all things around the water. I also enjoy running, biking, hiking and basketball. | Image | Lehigh Valley Hospital is ranked 25th in the country for orthopedic care on the 2025-2026 U.S. News & World Report Best Hospitals list. Our team of more than 200 orthopedic specialists provide award-winning, nationally-recognized care with experience, expertise and leading-edge technology. |.
Dr. Slenker is rated as an Advanced provider by MediFind in the treatment of Tendinitis. His top areas of expertise are Osteoarthritis, Tendinitis, Bursitis, and Tenosynovitis.
His clinical research consists of co-authoring 6 peer reviewed articles. MediFind looks at clinical research from the past 15 years. In particular, he has co-authored 1 article in the study of Tendinitis.
Insurance
Accepted insurance can change. Please verify directly with the provider.
Accepted insurance plans:
- EPO
- HMO
- POS
- PPO
- EPO
- HMO
- POS
- PPO
- INSURANCE PLAN
- OTHER COMMERCIAL
- EPO
- HMO
- POS
- PPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE-MEDICAID PLAN
- OTHER COMMERCIAL
- OTHER MEDICARE
- OTHER MEDICARE PART D
- PPO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- OTHER MEDICARE PART D
- PPO
- EPO
- HMO
- PPO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE SNP
- OTHER MEDICARE PART D
- HMO
- POS
- PPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- OTHER COMMERCIAL
- OTHER MEDICARE
- OTHER MEDICARE PART D
- PPO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE SNP
- EPO
- HMO
- PPO
- EPO
- POS
- HMO
- INDEMNITY
- POS
- PPO
- EPO
- POS
- PPO
- OTHER MANAGED MEDICAID
- OTHER MEDICAID
- STATE MEDICAID
- INSURANCE PLAN
- MEDICARE MAPD
- MEDICARE SNP
- OTHER COMMERCIAL
- OTHER MEDICARE PART D
- PPO
- HMO
- MANAGED MEDICAID PLAN
- EPO
- HMO
- OTHER COMMERCIAL
- EPO
- HMO
- POS
- PPO
- EPO
- PPO
- EPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- MEDICARE-MEDICAID PLAN
- OTHER MEDICARE
- OTHER MEDICARE PART D
Locations
1621 N Cedar Crest Blvd, Suite 102, Allentown, PA 18104
3794 Hecktown Rd, Suite 130, Easton, PA 18045
Clinical Research
Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.
Surena Namdari is an Orthopedics provider in Philadelphia, Pennsylvania. Dr. Namdari is rated as a Distinguished provider by MediFind in the treatment of Tendinitis. His top areas of expertise are Tendinitis, Osteoarthritis, Osteolysis Syndrome Recessive, Endoscopy, and Osteotomy. Dr. Namdari is currently accepting new patients.
Joseph Abboud is an Orthopedics provider in Philadelphia, Pennsylvania. Dr. Abboud is rated as a Distinguished provider by MediFind in the treatment of Tendinitis. His top areas of expertise are Tendinitis, Frozen Shoulder, Osteoarthritis, Endoscopy, and Tenotomy. Dr. Abboud is currently accepting new patients.
Penn Orthopaedics Cherry Hill
John Horneff is an Orthopedics provider in Cherry Hill, New Jersey. Dr. Horneff is rated as a Distinguished provider by MediFind in the treatment of Tendinitis. His top areas of expertise are Tendinitis, Frozen Shoulder, Bursitis, Tenotomy, and Osteotomy. Dr. Horneff is currently accepting new patients.
Areas of Expertise
MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.
Learn more about MediFind’s expert tiers
- Advanced
- BursitisDr. Slenker isAdvanced. Learn about Bursitis.
- OsteoarthritisDr. Slenker isAdvanced. Learn about Osteoarthritis.
- TendinitisDr. Slenker isAdvanced. Learn about Tendinitis.
- Experienced
- Baker CystDr. Slenker isExperienced. Learn about Baker Cyst.
- Congenital Mirror Movement DisorderDr. Slenker isExperienced. Learn about Congenital Mirror Movement Disorder.
- Frozen ShoulderDr. Slenker isExperienced. Learn about Frozen Shoulder.
- Pelvic Floor DysfunctionDr. Slenker isExperienced. Learn about Pelvic Floor Dysfunction.
- RhizarthrosisDr. Slenker isExperienced. Learn about Rhizarthrosis.
- SynovitisDr. Slenker isExperienced. Learn about Synovitis.