DR. John Leff, MD is an endocrinology and diabetes and metabolism internal medicine in Brooklyn, NY. The provider is an internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems. DR. John Leff, MD NPI is 1689693327. The provider is registered as an individual entity type.
The NPPES NPI record indicates the provider is a male.
The provider's business location address is:
LUTHERAN MEDICAL CENTER
150 55TH ST
BROOKLYN, NY
ZIP 11220
Phone: (718) 630-7369
Fax: (718) 630-6286
The enumeration date for this NPI number is 7/19/2006 and was last updated on 1/17/2012.