Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
David C Avallon
Chiropractor in Stamford, CT · enumerated 2017.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1033633722
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Registry record
Entity type Individual (Type 1)
Name David C Avallon
Sex Male
Practice address 1 Atlantic St Ste 201, Stamford, CT, 06901
Phone (203) 355-2225
Fax (203) 355-2235
Enumeration date Aug 3, 2017
Last updated in NPPES Aug 24, 2022
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 2079 | Other | CT | CONNECTICUT |
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
What specialty is David Avallon?
David Avallon 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.
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.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-08-24.