
Overview
Dr. Mathias Masem is an orthopedic surgeon with more than 20 years of experience in surgeries of the hand and upper extremities. Masem earned his medical degree at the University of Minnesota. He completed general surgery training and a residency in orthopedic surgery at UCSF, then completed a hand surgery fellowship under esteemed hand surgeon Dr. Jack Tupper in Oakland. He spent the following two years as an orthopedic research physician in Switzerland at the University of Bern and the Laboratory for Experimental Surgery. He furthered his training in hand and upper extremity surgery and microsurgery as a clinical and research fellow at Massachusetts General Hospital and Harvard Medical School. In addition to his work at UCSF, Masem has a private practice in Oakland and is chief of hand surgery at Alta Bates Summit Medical Center. He also is a consultant on hand and upper extremity injuries for the University of California, Berkeley athletic teams. Masem has authored numerous articles and given many lectures on upper extremity orthopedic surgery.
Dr. Masem is highly rated in 9 conditions, according to our data. His clinical expertise encompasses Carpal Tunnel Syndrome, Synovitis, Rhizarthrosis, and Dupuytren Contracture.
Dr. Masem is board certified in American Board Of Orthopaedic Surgery., Hand Surgery and American Board Of Orthopaedic Surgery., Orthopaedic Surgery. Dr. Masem is currently accepting new patients.
Graduate Institution
Specialties
Licenses
Board Certifications
Fellowships
Hospital Affiliations
Languages Spoken
Gender
Insurance
Accepted insurance can change. Please verify directly with the provider.
Accepted insurance plans:
- EPO
- HMO
- POS
- PPO
- MEDICARE MAPD
- MEDICARE SNP
- OTHER MEDICARE
- OTHER MEDICARE PART D
- 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
- EPO
- HMO
- PPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- OTHER COMMERCIAL
- OTHER MEDICARE
- OTHER MEDICARE PART D
- PPO
Accepted plan types not found. Please verify directly with the provider.
- HMO
- INDEMNITY
- POS
- PPO
- EPO
- POS
- PPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- OTHER MEDICARE
- POS
- PPO
- OTHER MANAGED MEDICAID
- OTHER MEDICAID
- STATE MEDICAID
- INSURANCE PLAN
- MEDICARE MAPD
- OTHER COMMERCIAL
- PPO
- INSURANCE PLAN
- MEDICARE MAPD
- HMO
- OTHER COMMERCIAL
- EPO
- HMO
- POS
- PPO
- EPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- MEDICARE-MEDICAID PLAN
- OTHER MEDICARE
- OTHER MEDICARE PART D
Locations
1500 Owens St., San Francisco, CA 94158
Additional Areas of Focus
Dr. Masem has provided the following conditions as areas of focus. Please note that we may not have enough data to validate their experience in some of these conditions.
Stanford University Medical Center
Robin Kamal is a Hand Surgeon practicing medicine in Redwood City, California. Dr. Kamal is highly rated in 15 conditions, according to our data. His clinical expertise encompasses Carpal Tunnel Syndrome, Trigger Thumb, Mononeuritis Multiplex, Osteotomy, and Bone Graft.
Stanford University Medical Center
Jeffrey Yao is a Hand Surgeon practicing medicine in Redwood City, California. Dr. Yao is highly rated in 17 conditions, according to our data. His clinical expertise encompasses Scaphoid Non-Union, Carpal Tunnel Syndrome, Ganglion Cyst, Wrist Arthroscopy, and Osteotomy.
Spine Center
Dr. Vedat Deviren is an orthopedic surgeon who specializes in caring for children and adults with spinal disorders. His expertise has led to a wide range of experience on difficult cases involving any part of the spine. He treats spinal deformities such as adult scoliosis, spondylolisthesis (a painful disorder of the lower spine), failed back surgeries and tumors, among other conditions. Deviren completed postgraduate education in orthopedics and traumatology (surgical repair following injury) at Hacettepe University in Ankara, Turkey. At UCSF, he completed fellowship work in spine surgery, training in both patient care and research. As a faculty member at UCSF, Deviren has maintained a passionate commitment to patient care. In his teaching, he focuses on concepts that provide medical students, residents, fellows and international scholars with skills for evaluating and investigating evidence-based patient care, spinal disorder outcomes, biomechanical characteristics of the spine and the application of medical instruments in spinal treatment. Dr. Deviren is highly rated in 14 conditions, according to our data. His clinical expertise encompasses Lordosis, Kyphosis, Scoliosis, Osteotomy, and Spinal Fusion. Dr. Deviren is board certified in American Board Of Orthopaedic Surgery., Orthopaedic Surgery. Dr. Deviren is currently accepting new patients.
Frequently Asked Questions about Dr. Mathias A. Masem
How do I make an appointment with Dr. Mathias A. Masem?
You can book an appointment with Dr. Mathias A. Masem by calling their office at 415-353-2808. MediFind provides direct contact information so you can schedule visits, second opinions, or consultations without navigating third-party calendars.
Is Dr. Mathias A. Masem a top-rated expert for Carpal Tunnel Syndrome?
MediFind is an objective health platform that identifies experts based on real-world data. Dr. Mathias A. Masem is classified as an Advanced expert for Carpal Tunnel Syndrome, meaning they are among the top experts in the country for this condition. This ranking is based on their volume of patients, published research, and peer connections.
What conditions does Dr. Mathias A. Masem specialize in?
While Dr. Mathias A. Masem is a Orthopedics, they have specific expertise in Carpal Tunnel Syndrome, Synovitis, and Rhizarthrosis. MediFind analyzes a doctor's articles and referral patterns to identify their specific areas of focus within Orthopedics.
Does Dr. Mathias A. Masem accept my insurance?
Dr. Mathias A. Masem accepts most major insurance plans, including Aetna and Alignment Health Plan. We recommend calling the office directly at 415-353-2808 to verify that your specific plan is currently accepted before your visit.
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
- Carpal Tunnel SyndromeDr. Masem isAdvanced. Learn about Carpal Tunnel Syndrome.
- Dupuytren ContractureDr. Masem isAdvanced. Learn about Dupuytren Contracture.
- Ganglion CystDr. Masem isAdvanced. Learn about Ganglion Cyst.
- OsteoarthritisDr. Masem isAdvanced. Learn about Osteoarthritis.
- RhizarthrosisDr. Masem isAdvanced. Learn about Rhizarthrosis.
- SynovitisDr. Masem isAdvanced. Learn about Synovitis.
- Experienced
- BursitisDr. Masem isExperienced. Learn about Bursitis.
- Contracture DeformityDr. Masem isExperienced. Learn about Contracture Deformity.
- Distal Median Nerve DysfunctionDr. Masem isExperienced. Learn about Distal Median Nerve Dysfunction.
- Infantile Digital FibromatosisDr. Masem isExperienced. Learn about Infantile Digital Fibromatosis.
- OsteonecrosisDr. Masem isExperienced. Learn about Osteonecrosis.
- Radial Nerve DysfunctionDr. Masem isExperienced. Learn about Radial Nerve Dysfunction.

