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. Hillis Warren:
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Specialties & Research
Dr. Hillis Warren, MD is board certified in Ophthalmology.
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Education & Awards
Dr. Warren graduated from University of California at Davis.More Education & Awards
Dr. Warren has 4 hospital affiliations:
- Sutter General Hospital
- Mercy General Hospital
Accepted Insurance Plans
Dr. Warren accepts these health insurances in at least one office:
- United Healthcare - 24 plans
- Great-West Healthcare - 2 plans
- Unicare - 12 plans
- Health Plan of San Joaquin - 4 plans
- Anthem Blue Cross - 11 plans
- Humana - 6 plans
- Cigna - 5 plans
- USA H & W Network - 1 plan
More Accepted Insurance
Similar doctors nearby
- Additional Information
- Where does Dr. Hillis L. Warren practice?
Dr. Hillis Warren practices Ophthalmology near Sacramento, CA.
See Sacramento Ophthalmologists.