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. Frederick Lewis:
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Specialties & Research
Dr. Frederick Lewis, MD is board certified in Internal Medicine and Endocrinology and Metabolism.
- He has special expertise in 10 areas:
- Adrenal Gland Diseases
- Diabetes Mellitus
- Metabolic Bone Diseases
- Parathyroid Diseases
- Pituitary Diseases
- Thyroid Diseases
Education & Awards
Dr. Lewis graduated from Albany Medical College.
Dr. Lewis has 6 hospital affiliations:
- Lenox Hill Hospital
- Beth Israel Medical Center Petrie Division
Accepted Insurance Plans
Dr. Lewis accepts these health insurances in at least one office:
- Aetna - 3 plans
- United Healthcare - 18 plans
- Empire Blue Cross Blue Shield - 3 plans
- Unicare - 2 plans
- MetroPlus Health Plan - 1 plan
- Evercare - 1 plan
- Oxford Health Plans - 3 plans
- Cigna - 12 plans
- Healthfirst - 3 plans