Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Derek Anthony Alyman Demmans, DC

Chiropractor in Boston, MA · enumerated 2026.

Data current as of Jul 11, 2026 · sourced from CMS NPPES

National Provider Identifier

1811841877

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Derek Anthony Alyman Demmans

Credential DC

Sex Male

Practice address 715 Boylston St Ste 120, Boston, MA, 02116

Phone (617) 209-9715

Enumeration date Feb 25, 2026

Last updated in NPPES Feb 25, 2026

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License CHI5220 (MA) Primary

DC — Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC 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 NPI 1811841877 active?

Yes — as of the latest NPPES snapshot, NPI 1811841877 is active (record last updated 2026-02-25).

How do I verify Derek Demmans's NPI record?

Cross-check NPI 1811841877 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2026-02-25.