NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Ralph Joseph Dumouchel, D.C

Chiropractor in Concord, CA · enumerated 2006 · practices at Ralph Dumouchel, Dc A Chiropractic Corp.

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

National Provider Identifier

1558443234

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Ralph Joseph Dumouchel
Credential D.C
Sex Male
Practice address 5167 Clayton Rd, Suite C, Concord, CA, 94521
Phone (925) 798-6300
Fax (925) 798-6301
Enumeration date Oct 20, 2006
Last updated in NPPES Dec 21, 2011

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License DC12658 (CA) Primary
111NX0100X Occupational Health Chiropractor Chiropractic Providers · License DC12658 (CA) Secondary
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

What is the NPI number for Ralph Dumouchel?
The National Provider Identifier (NPI) for Ralph Dumouchel is 1558443234, a Type 1 (individual) record in the CMS NPPES registry.
Where does Ralph Dumouchel practice?
The practice location on file with NPPES is in Concord, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-12-21.