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).
Learn more about Dr. Derek Johnson:
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Specialties & Research
Dr. Derek Johnson, MD is board certified in Surgery.
- He has special expertise in 8 areas:
- Breast Cancer
- Capsule Endoscopy
- Colon Cancer
- Galbladder Removal (Cholecystectomy)
- Skin Cancer
- Varicose Veins
Education & Awards
Dr. Johnson graduated from University of Guadalajara, Mexico, San Antonio.
Dr. Johnson has 9 hospital affiliations:
- Theda Clark Medical Center
- Appleton Medical Center
Accepted Insurance Plans
Dr. Johnson accepts these health insurances in at least one office:
- Aetna - 1 plan
- United Healthcare - 20 plans
- Medica Health Plans - 3 plans
- Anthem - 2 plans
- Humana - 2 plans
- Great-West Healthcare - 1 plan
- Cigna - 3 plans
- Arise Health Plan - 1 plan