NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Brock William Mattson, D.C.

Chiropractor in Ellsworth, ME · enumerated 2008 · practices at Active Chiropractic and Wellness.

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

National Provider Identifier

1790934537

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Brock William Mattson
Credential D.C.
Sex Male
Practice address 150 Bucksport Rd, Ellsworth, ME, 04605
Fax (207) 667-4679
Enumeration date Sep 17, 2008
Last updated in NPPES Nov 16, 2016

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License 03563 (MD) Secondary
111N00000X Chiropractor Chiropractic Providers · License CR1906 (ME) 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

Where does Brock Mattson practice?
The practice location on file with NPPES is in Ellsworth, ME. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Brock Mattson?
The National Provider Identifier (NPI) for Brock Mattson is 1790934537, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-11-16.