JOHN LEFF MD – NPI #1689693327
Internal Medicine
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.
JOHN LEFF is a physician located in BROOKLYN, NY. NPPES has assigned the NPI number 1689693327 to JOHN LEFF on July 19, 2006. It is a Type-1 NPI, indicating this NPI number is associated with an individual. The primary taxonomy selected by this provider is 207RE0101X from the Health Care Provider Taxonomy code set, which is classified as Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism
The NPI profile was previously updated about 14 years ago on Jan 17, 2012. Use the NPI data found here to bill health insurance companies, identify providers enrolled in Medicare and Medicaid services or other HIPAA compliant transactions. See the complete NPI profile for JOHN LEFF below.
NPI Profile for
JOHN LEFF
(about 20 years ago)
150 55TH ST
BROOKLYN, NY 11220 Phone: (718) 630-7369 Fax: (718) 630-6286
STATION 14
BROOKLYN, NY 11220-2508 Phone: (718) 630-7369 Fax: (718) 630-6286
A taxonomy code is a code that describes the health care service provider's type, classification, and the area of specialization. The primary specialty for this provider is indicated as (Primary) below.
| Taxonomy Classification / Specialization | State | License |
|---|---|---|
| 207RE0101X - Internal Medicine / Endocrinology, Diabetes & Metabolism (Primary) |
NY | 143472 |
The taxonomy codes are selected by the provider at the time of NPI registration. Selection of a taxonomy code does not replace any credentialing or validation process that the provider requesting the code should complete.