Dr. Mathias A. Masem
M.D. | Orthopedic Surgery | 50+ years Exp
Medicare Enrolled 80 Grand Ave, Suite 600, Oakland
California, 94612-3744
510-763-0884 510-763-1574
Maps & DirectionsDr. Mathias A. Masem is a Oakland, California based orthopedic surgeon with 50 years of experience in Orthopedic Surgery. He completed his graduation from University Of Minnesota Medical School in 1975. He is also affiliated with hospitals like Ucsf Medical Center and Alta Bates Summit Medical Center - Alta Bates Camp. He accepts the Medicare-approved amount. Patients will not be billed for any more than the Medicare deductible and coinsurance. Active license number of Dr. Mathias A. Masem is G34134 for Hand Surgery in California.
Dr. Mathias A. Masem is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means including the patients with musculoskeletal problems which include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. Patients with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system are also concerned.
Complete Profile:
Dr. Mathias A. Masem speciality, credentials, practice address, contact phone number and fax are as below.
Patients can directly walk in or can call on the below given phone number for appointment.
| Specialization: | Orthopedic - Orthopedic Surgery |
| Credentials: | M.D. |
| Experience: | 50+ years |
| Medical School Attended: | University Of Minnesota Medical School |
| Graduation Year: | 1975 |
| Gender: | Male |
| Accepts Medicare Assignment: | Yes |
| Practice Address: | 80 Grand Ave, Suite 600, Oakland,
California, 94612-3744 |
| Phone: | 510-763-0884 |
| Fax: | 510-763-1574 |
Professional Identification Codes:
NPI number stands for National Provider Identifier which is a unique 10-digit identification number issued to health care providers in the United States by the Centers for Medicare and Medicaid Services (CMS).
NPI details are as mentioned below.
| PAC ID: | 8820026438 |
| Enrollment ID: | I20050803000637 |
| NPI Number: | 1508810938 |
| NPI Enumeration Date: | 20 May, 2006 |
| NPI Last Update On: | 18 Dec, 2014 |
Medical Licenses:
Doctors can have one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Dr. Mathias A. Masem are as mentioned below.
| License Number | Specialization | State | Status | |
| G34134 | Hand Surgery | California | Primary | |
| G34134 | Orthopedic Surgery | California | Secondary | |
Hospital Affiliation:
Surgeons are affiliated to many hospitals whom they worked with in the past or are presently working with. One surgeon can be affiliated to four to five hospitals at a time.
| Hospital Name (CCN) | State | Hospital Type |
| Ucsf Medical Center (050454) | San francisco, CA | Acute Care Hospital |
| Alta Bates Summit Medical Center - Alta Bates Camp (050305) | Berkeley, CA | Acute Care Hospital |
| Alameda Hospital (050211) | Alameda, CA | Acute Care Hospital |
| Alta Bates Summit Medical Center(050043) | Oakland, CA | Acute Care Hospital |
Other Medical Identifiers:
Other legacy medical identifiers associated with Dr. Mathias A. Masem such as Medicaid, Medicare PIN, NSC, UPIN etc. are mentioned as below.
| Identifier | Type | State | Issuer |
| 00G341340 | Medicaid | California | |
Business Mailing Address:
Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned address.
| Address: | 80 Grand Ave, Suite 600
Oakland, California |
| Zip: | 94612-3744 |
| Phone Number: | 510-763-0884 |
| Fax Number: | 510-763-1574 |
Patients can reach Dr. Mathias A. Masem at
80 Grand Ave, Suite 600, Oakland, California or can
call to book an appointment on 510-763-0884.
Comments/ Reviews:
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** Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 08 December, 2025.