John Hennessy, MD
John Hennessy, MD is an Endocrinology, Diabetes & Metabolism Physician in Olean, New York. Licensed in New York. Registered with an NPI since 2005.
- Licensed in
- NY
- In the registry since
- 2005
What do these letters mean?
- MD — Doctor of Medicine
- A physician who completed allopathic medical school.
Practice location Address checks out
535 Main StOlean, NY 14760-1513
Phone: (716) 372-0141
Fax: (716) 373-6632
Show map & directions
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Pin is approximate — placed at the ZIP-code centre, not the exact door.
Specialties & licences
| Endocrinology, Diabetes & Metabolism Physician (primary) | Taxonomy 207RE0101X · Licence 179364 (NY) |
|---|
Record details
| NPI number | 1780676676 |
|---|---|
| Entity type | Individual (Type 1) |
| Gender | Male |
| Credentials | MD |
| Sole proprietor | No |
| NPI enumerated | August 17, 2005 |
| Last updated in NPPES | July 13, 2026 |
Other providers in Olean
-
Dr. Neha Bansal, MD
535 Main St, Olean, NY 14760-1500 · (716) 372-0141
-
Priya Mohanty Medical Practice PLLC
2626 W State St Ste # 208, Olean, NY 14760-1858 · (716) 790-8038