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. Thomas Callan, MD is board certified in Internal Medicine, Hematology, and Medical Oncology.
Education & Awards
Dr. Callan graduated from Georgetown University, Washington.
Dr. Callan has 3 hospital affiliations:
- Grossmont Hospital
- Sharp Coronado Hospital and Healthcare Center
- Alvarado Hospital
Accepted Insurance Plans
Dr. Callan accepts these health insurances in at least one office:
- United Healthcare - 16 plans
- Anthem Blue Cross - 8 plans