A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).
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Specialties & Research
Dr. John Williams, MD is board certified in Orthopaedic Surgery.
- He has special expertise in 4 areas:
- Hip Osteoarthritis
- Knee Osteoarthritis
- Osteoarthritis (Hand and Wrist)
Education & Awards
Dr. Williams graduated from Brown University, Providence.
Dr. Williams has 13 hospital affiliations:
- Seton Medical Center
- St. David's Hospital
Accepted Insurance Plans
Dr. Williams accepts these health insurances in at least one office:
- United Healthcare - 2 plans
- Great-West Healthcare - 2 plans
- Blue Cross Blue Shield of Texas - 1 plan
- Humana - 4 plans
- Unicare - 2 plans
- Medicare - 1 plan