John Hennessy, MD
NPI 1780676676 belongs to John Hennessy, MD, an endocrinology, diabetes & metabolism physician with a practice location in Olean, NY. The NPI was issued on August 17, 2005, and the record was last updated in NPPES on July 13, 2026.
Taxonomies and licenses
| Taxonomy | Code | License |
|---|---|---|
| Endocrinology, Diabetes & Metabolism Physician Primary | 207RE0101X | 179364 (NY) |
Practice location
Local context
Active NPPES records list 3 providers with endocrinology, diabetes & metabolism physician as the primary taxonomy within 25 miles of this practice location's ZIP code.
The same primary taxonomy is listed by 1,177 in New York and 13,065 nationwide.
These are counts from NPPES records, not a ranking or recommendation. Distances are measured between ZIP code centers, not street addresses.
Record history
- Name on record
- John Hennessy
- Status
- Active
- NPI issued
- Last updated in NPPES
Is this your record? Updates are made through NPPES, the official National Plan and Provider Enumeration System.
NPPES data as of · Source: CMS NPPES
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