Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
John A Sellar, DO
Chiropractor in Concord, NH · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1063565323
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Registry record
Entity type Individual (Type 1)
Name John A Sellar
Credential DO
Sex Male
Practice address 35 West Street, Concord, NH, 03301
Phone (603) 224-3883
Fax (603) 224-3883
Enumeration date Jan 19, 2007
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
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
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 0500928Y0NH01 | Other | - | ANTHEM |
| 2987P | Other | - | CIGNA |
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.
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 Sellar?
John Sellar is registered in NPPES with the primary taxonomy of Chiropractor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.