Accepting patients
Who is Dr. Masem, Orthopedic Hand Surgeon in Oakland, CA?
Dr. Mathias Masem, MD is an Orthopedic Hand Surgeon, who primarily practices in Oakland, CA with 2 additional practice locations. He is board certified. Dr. Masem graduated from Macalester College and the University of Minnesota Medical School and completed his residency at Moffitt Hosp Univ Of Ca, Orthopedic Surgery; Moffitt Hosp Univ Of Ca, General Surgery. He is a member of the International Association of HealthCare Professionals. Dr. Masem is fluent in English, German, and Spanish, and is currently seeing new patients. Dr. Masem’s practice accepts Cigna, Medicaid, Medicare, UnitedHealthcare, Aetna and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Masem’s office at (510) 763-0884.
What are Areas of Expertise for Dr. Masem?
Dr. Mathias Masem, MD is a highly-rated, board-certified Orthopedic Hand Surgeon known for expertly diagnosing, treating, and managing a wide array of related conditions or procedures. Utilizing the latest medical advancements and evidence-based practices, Dr. Masem empowers patients to confidently navigate their health journey, specializing in Microsurgery, Sports Injuries, Upper Extremity Surgery, or comprehensive wellness support. Serving the Oakland/CA community, Dr. Masem is dedicated to enhancing lives through expert, patient-centered care.
Where did Dr. Masem go to medical school and complete their residency?
Fellowship: UCSF Medical Center, Hand Surgery | UCSF Medical Center, Orthopaedic Surgery | University of Bern, Boston MA, Hand and Mircrosurgery, Massachusetts General Hospital, Harvard Medical School, Orthopedic Clinic of the Inselspital - University | Ucsf Med Center | Ucsf Med Center
Residency: Moffitt Hosp Univ Of Ca, Orthopedic Surgery; Moffitt Hosp Univ Of Ca, General Surgery | University of California, San Francisco | Ucsf Med Center | University of California
Medical School: University of Mn Med Sch-Minneapolis, Minneapolis Mn | Macalester College and the University of Minnesota Medical School
Is Dr. Masem board certified as an Orthopedic Hand Surgeon?
Yes, Dr. Mathias Masem, MD is board certified by the American Board of Orthopaedic Surgery
What languages does Dr. Masem speak?
Dr. Masem and their clinical team can communicate with patients in the following languages:
English
German
Spanish
What conditions does Dr. Masem treat?
As an Orthopedic Hand Surgeon, Dr. Masem diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Masem. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly.
Also known as:
- Osteoarthritis of both thumb joints
- Primary Osteoarthritis in Right Thumb Base
- Osteoarthritis of the left thumb joint
- Osteoarthritis of the right hand
- Osteoarthritis
- Degenerative joint disease
- Wear-and-tear arthritis
- Arthrosis
- Joint degeneration
- Right Thumb Arthritis
- Primary Right First CMC Joint Arthritis
- Right Hand Thumb Base Osteoarthritis
ICD-10 Codes:
- M180: Bilateral primary osteoarthritis of first carpometacarpal joints
- M1811: Unilateral primary osteoarthritis of first carpometacarpal joint, right hand
- M1812: Unilateral primary osteoarthritis of first carpometacarpal joint, left hand
- M19041: Primary osteoarthritis, right hand
Also known as:
- Carpal Tunnel Syndrome
- Right Carpal Tunnel Syndrome
- Left Carpal Tunnel Syndrome
- Median Nerve Compression
- Wrist Nerve Entrapment
- Right Wrist Nerve Compression
- Right Hand Numbness
- Right CTS
- Left Wrist Nerve Compression
- Left Hand Numbness
- Left CTS
ICD-10 Codes:
- G5603: Carpal tunnel syndrome, bilateral upper limbs
- G5601: Carpal tunnel syndrome, right upper limb
- G5602: Carpal tunnel syndrome, left upper limb
Also known as:
- Dupuytren's Contracture
- Tendon and Ligament Disorder
- Connective Tissue Disorder
- Finger Injuries and Disorder
- Dupuytren contracture
- Joint Disorder
- Palmar fibromatosis
- Viking disease
- Hand contracture
- Enthesopathy
- Tendon inflammation
- Ligament pain
ICD-10 Codes:
- M720: Palmar fascial fibromatosis [Dupuytren]
- M778: Other enthesopathies, not elsewhere classified
Also known as:
- Shoulder Lesion
- Shoulder Injuries and Disorder
- Shoulder Injury
- Shoulder Problem
- Shoulder Damage
ICD-10 Codes:
- M7581: Other shoulder lesions, right shoulder
- M7582: Other shoulder lesions, left shoulder
Also known as:
- Right Ulnar Nerve Damage
- Bilateral Ulnar Nerve Damage
- Peripheral Nerve Disorder
- Right Ulnar Neuropathy
- Right Elbow Nerve Pain
- Right Funny Bone Injury
- Ulnar Neuropathy in Both Arms
- Both Elbow Nerve Pain
- Bilateral Funny Bone Injury
ICD-10 Codes:
- G5621: Lesion of ulnar nerve, right upper limb
- G5623: Lesion of ulnar nerve, bilateral upper limbs
Also known as:
- Tendon and Joint Lining Inflammation
- Joint Disorder
- Tendinitis
- Tenosynovitis
- Synovitis
- Inflamed Tendons
ICD-10 Codes:
- M659: Synovitis and tenosynovitis, unspecified
Also known as:
- Trigger Right Middle Finger
- Trigger Right Ring Finger
- Finger Injuries and Disorder
- Tendinitis
- Stenosing Tenosynovitis of Right Middle Finger
- Right Middle Finger Tendonitis
- Snapping Right Middle Finger
- Stenosing Tenosynovitis of Right Ring Finger
- Right Ring Finger Tendonitis
- Snapping Right Ring Finger
ICD-10 Codes:
- M65331: Trigger finger, right middle finger
- M65341: Trigger finger, right ring finger
Also known as:
- De Quervain's Tenosynovitis
- Hand Injuries and Disorder
- Tendinitis
- De Quervain's Disease', 'Washerwoman's Sprain
- Radial Styloid Tenosynovitis
ICD-10 Codes:
- M654: Radial styloid tenosynovitis [de Quervain]
Also known as:
- Other Pre-Procedure Examination
- Various pre-op checks
- Miscellaneous pre-surgery exams
- Other pre-treatment assessments
ICD-10 Codes:
- Z01818: Encounter for other preprocedural examination
Also known as:
- Right Wrist Pain
- Pain
- Wrist Injuries and Disorder
- Aching right wrist
- Sore right wrist
- Right wrist discomfort
ICD-10 Codes:
- M25531: Pain in right wrist
Also known as:
- Lateral Epicondylitis
- Elbow Injuries and Disorder
- Tennis Elbow
- Lateral Epicondylalgia
- Elbow Tendinitis
ICD-10 Codes:
- M7711: Lateral epicondylitis, right elbow
What procedures does Dr. Masem perform?
As an Orthopedic Hand Surgeon, Dr. Masem performs a variety of medical procedures. This procedure information is derived from anonymized insurance claims and highlights the medical procedures most commonly performed by Dr. Masem. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly.
Also known as:
- Carpal Tunnel Release Surgery (Endoscopic)
- Trigger Finger Release Surgery
- Wrist Ganglion Cyst Removal
- Palm Tissue Removal (Fasciectomy)
- Dupuytren's Contracture Surgery (Single Finger)
- Endoscopy
- Endoscopic Carpal Tunnel Surgery
- Wrist Endoscopy for Carpal Tunnel
- Transverse Carpal Ligament Release
- Tendon Sheath Incision
- Trigger Finger Tenolysis
- Finger Tendon Release
- Hand Tendon Surgery
- Ganglion Excision
- Wrist Cyst Surgery
- Dorsal/Volar Ganglion Removal
- Palmar Fasciectomy', 'Dupuytren's Contracture Surgery
- Hand Fascia Removal
- Palm Tissue Release
- Partial Palmar Fasciectomy', 'Finger Contracture Release Surgery', 'Dupuytren's Release (Finger)
CPT Codes:
- 29848: Endoscopy, wrist, surgical, with release of transverse carpal ligament
- 26055: Tendon sheath incision (eg, for trigger finger)
- 25111: Excision of ganglion, wrist (dorsal or volar); primary
- 26121: Fasciectomy, palm only, with or without Z-plasty, other local tissue rearrangement, or skin grafting (includes obtaining graft)
- 26123: Fasciectomy, partial palmar with release of single digit including proximal interphalangeal joint, with or without Z-plasty, other local tissue rearrangement, or skin grafting (includes obtaining graft);
Also known as:
- Short Arm Splint Application
- Long Arm Splint Application
- Forearm to hand splint
- Static arm splint
- Wrist and forearm splint
- Arm immobilization splint
- Shoulder to Hand Splint
- Arm Immobilization Splint
- Forearm and Upper Arm Splint
CPT Codes:
- 29125: Application of short arm splint (forearm to hand); static
- 29105: Application of long arm splint (shoulder to hand)
Also known as:
- Wrist Arthroscopy
- Endoscopy
- Wrist Scope Surgery
- Keyhole Wrist Surgery
- Wrist Joint Repair
- Triangular Fibrocartilage Repair
CPT Codes:
- 29846: Arthroscopy, wrist, surgical; excision and/or repair of triangular fibrocartilage and/or joint debridement
Also known as:
- Wrist Synovectomy (Arthroscopic)
- Endoscopy
- Wrist Joint Lining Removal
- Keyhole Wrist Surgery for Synovium
CPT Codes:
- 29845: Arthroscopy, wrist, surgical; synovectomy, complete
Also known as:
- Short Arm Cast Application
- External Fixation System Placement (Uniplane)
- Elbow to Finger Cast
- Forearm Cast
- Arm Immobilization Cast
- Uniplane External Fixator
- Bone External Fixation
- External Frame for Bone Healing
CPT Codes:
- 29075: Application, cast; elbow to finger (short arm)
- 20690: Application of a uniplane (pins or wires in 1 plane), unilateral, external fixation system
Also known as:
- Wrist or Hand Joint Replacement (Interposition)
- Intercarpal Arthroplasty
- Carpometacarpal Joint Replacement
- Tendon Interposition Arthroplasty
CPT Codes:
- 25447: Arthroplasty, Intercarpal Or Carpometacarpal Joints; Interposition (Eg, Tendon)
Also known as:
- Diagnostic Wrist Arthroscopy
- Endoscopy
- Wrist Scope (Diagnostic)
- Wrist Joint Exploration
- Synovial Biopsy Wrist
- Keyhole Wrist Examination
CPT Codes:
- 29840: Arthroscopy, wrist, diagnostic, with or without synovial biopsy (separate procedure)
Also known as:
- Finger Splint Application
- Static Finger Splint
- Finger Immobilization
- Finger Brace
CPT Codes:
- 29130: Application of finger splint; static
Also known as:
- Finger or Palm Tendon Sheath Removal
- Flexor Tenosynovectomy
- Tendon Sheath Excision (Hand)
- Radical Synovectomy of Tendon
CPT Codes:
- 26145: Synovectomy, tendon sheath, radical (tenosynovectomy), flexor tendon, palm and/or finger, each tendon
Also known as:
- Removal of Deep Surgical Implant
- Hardware Removal Surgery
- Buried Implant Extraction
- Orthopedic Implant Removal
CPT Codes:
- 20680: Removal of implant; deep (eg, buried wire, pin, screw, metal band, nail, rod or plate)
Also known as:
- Long Arm Cast Application
- Shoulder to hand cast
- Full arm cast
- Arm fracture cast
CPT Codes:
- 29065: Application, cast; shoulder to hand (long arm)
Also known as:
- Hand or Finger Cyst Removal
- Ganglion cyst removal hand
- Tendon sheath lesion excision
- Mucous cyst removal finger
CPT Codes:
- 26160: Excision of lesion of tendon sheath or joint capsule (eg, cyst, mucous cyst, or ganglion), hand or finger
Also known as:
- Tendon Release Surgery for Hand or Finger
- Extensor tenolysis
- Tendon freeing surgery
- Hand tendon surgery
CPT Codes:
- 26445: Tenolysis, extensor tendon, hand OR finger, each tendon
Also known as:
- Small Joint or Bursa Injection with Ultrasound
- Ultrasound-Guided Joint Aspiration
- Finger Joint Injection
- Toe Joint Injection
- Bursa Injection with Ultrasound
CPT Codes:
- 20604: Arthrocentesis, aspiration and/or injection, small joint or bursa (eg, fingers, toes); with ultrasound guidance, with permanent recording and reporting
Also known as:
- Joint or Bursa Injection/Aspiration
- Arthrocentesis
- Joint Fluid Removal
- Bursa Injection
CPT Codes:
- 20605: Arthrocentesis, aspiration and/or injection, intermediate joint or bursa (eg, temporomandibular, acromioclavicular, wrist, elbow or ankle, olecranon bursa); without ultrasound guidance
Also known as:
- Extensive Shoulder Arthroscopy Debridement
- Endoscopy
- Shoulder Scope Cleaning
- Arthroscopic Shoulder Debridement
- Shoulder Joint Cleanup Surgery
CPT Codes:
- 29823: Arthroscopy, shoulder, surgical; debridement, extensive, 3 or more discrete structures (eg, humeral bone, humeral articular cartilage, glenoid bone, glenoid articular cartilage, biceps tendon, biceps anchor complex, labrum, articular capsule, articular side of the rotator cuff, bursal side of the rotator cuff, subacromial bursa, foreign body[ies])
Also known as:
- Wrist or Forearm Tendon Sheath Removal (Flexor Side)
- Flexor Tenosynovectomy
- Wrist Synovial Excision
- Forearm Tendon Sheath Excision
CPT Codes:
- 25115: Radical excision of bursa, synovia of wrist, or forearm tendon sheaths (eg, tenosynovitis, fungus, Tbc, or other granulomas, rheumatoid arthritis); flexors
Also known as:
- Peripheral Nerve Block
- Nerve injection
- Pain relief injection
- Steroid injection for nerve pain
CPT Codes:
- 64450: Injection(s), anesthetic agent(s) and/or steroid; other peripheral nerve or branch
Also known as:
- Ulnar Nerve Release or Repositioning at Elbow
- Ulnar Nerve Transposition
- Cubital Tunnel Release
- Elbow Nerve Surgery
- Neuroplasty Ulnar Nerve
CPT Codes:
- 64718: Neuroplasty and/or transposition; ulnar nerve at elbow
Also known as:
- Carpal Tunnel Release Surgery
- Median Nerve Neuroplasty
- Carpal Tunnel Decompression
- Median Nerve Transposition
CPT Codes:
- 64721: Neuroplasty and/or transposition; median nerve at carpal tunnel
Does Dr. Masem accept my insurance?
Dr. Masem accepts most major insurance plans. Important: Please call our office at (510) 763-0884 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Masem accept in Oakland, CA?
Dr. Masem in Oakland, CA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
All Other Third Party
BCBS Unspecified
Blue Shield of California
Crown Cork and Seal Company
CVS Health (formerly Aetna)
Elevance Health Inc. (formerly Anthem)
Medicare
State of Tennessee
Sutter Health
UnitedHealthcare
View All Insurances
Where is Dr. Masem's office located?
Dr. Mathias Masem's Primary Practice
80 Grand Ave Ste 600
Oakland, CA 94612
(510) 763-0884
Recognitions
Memberships & Associations
International Association of HealthCare Professionals
Member
Awards
San Francisco Super Doctors
What is Dr. Masem's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Masem's National Provider Identifier (NPI) number is 1508810938.
What common questions do patients ask about Dr. Masem?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Masem
What is Dr. Mathias Masem's specialty?
Dr. Masem is a Orthopedic Hand Surgeon near Oakland, CA. An orthopaedic surgeon specializing in the upper extremity focuses on the investigation, preservation, and restoration of all structures affecting the form and function of the hand and wrist. This specialist employs medical, surgical, and rehabilitative techniques to treat various conditions and injuries related to the upper extremity. Contact Dr. Masem to book an appointment today.
Is this Dr. Mathias Masem affiliated with a ranked Castle Connolly Top Hospital?
No, Masem is not affiliated with a Castle Connolly Top Hospital, but is affiliated with the following hospitals: Alta Bates Summit Medical Center - Alta Bates Campus. Castle Connolly Top Hospitals are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals
Where can I learn more about Orthopedic Hand Surgeon?
Explore Orthopedic Hand Surgeon with insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.
Is Mathias Masem accepting new patients in Oakland, CA?
Yes, Dr. Mathias Masem is accepting new patients at this time.
Does Dr. Mathias Masem offer online booking?
Please contact Dr. Masem's office at (510) 763-0884 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Mathias Masem?
Please contact Dr. Masem's office at (510) 763-0884 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Mathias Masem have?
Dr. Mathias Masem is certified by the American Board of Orthopaedic Surgery.
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