NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

John Douglas Idoine III, D.O.

Orthopaedic Surgery Physician in Dover, OH · enumerated 2008 · practices at Orthounited, Inc..

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

National Provider Identifier

1437324605

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name John Douglas Idoine III
Credential D.O.
Sex Male
Practice address 340 Oxford St Ste 102, Dover, OH, 44622
Fax (330) 492-5454
Enumeration date Apr 28, 2008
Last updated in NPPES Jun 21, 2026

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 34.010236 (OH) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

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

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.
What specialty is John Idoine?
John Idoine is registered in NPPES with the primary taxonomy of Orthopaedic Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-06-21.