NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Rex L Farrer, DC

Chiropractor in Sanford, ME · enumerated 2006.

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

National Provider Identifier

1043372717

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Registry record

Entity type Individual (Type 1)
Name Dr. Rex L Farrer
Credential DC
Sex Male
Practice address Sanford, ME, 04073
Phone (207) 490-2553
Fax (207) 490-6526
Enumeration date Dec 15, 2006
Last updated in NPPES Apr 16, 2019

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License CR747 (ME) Primary
DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential

Other identifiers

Identifier Type State Issuer
010892 Other ME BC
M20288 Other ME CIGNA
0503546Y0ME01 Other NH BLUE CROSS OF NEW HAMPSHIRE
119690000 Medicaid ME -

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 Rex Farrer practice?
The practice location on file with NPPES is in Sanford, ME. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Rex Farrer?
The National Provider Identifier (NPI) for Rex Farrer is 1043372717, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-04-16.