NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. John Gemery

Vascular & Interventional Radiology Physician in Lebanon, NH · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1811921836

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. John Gemery
Sex Male
Practice address 1 Medical Center Dr, Department of Radiology, Lebanon, NH, 03756
Fax (603) 650-5455
Enumeration date Jul 10, 2006
Last updated in NPPES Jul 19, 2011

Taxonomy & licenses

2085R0204X Vascular & Interventional Radiology Physician Allopathic & Osteopathic Physicians · License 10387 (NH) Primary

Other identifiers

Identifier Type State Issuer
0RE4934 Medicaid VT -
30011609 Medicaid NH -

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is John Gemery?
John Gemery is registered in NPPES with the primary taxonomy of Vascular & Interventional Radiology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-07-19.