Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Ronald Decausemaker, D.C.

Chiropractor in Fremont, CA · enumerated 2005.

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

National Provider Identifier

1558368027

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Ronald Decausemaker

Credential D.C.

Sex Male

Practice address 5111 Morris Way, Fremont, CA, 94536

Phone (510) 409-7106

Enumeration date Jun 30, 2005

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License 22989 (CA) Primary

111N00000X Chiropractor Chiropractic Providers · License 2844 (OR) Secondary

111N00000X Chiropractor Chiropractic Providers · License 2792 (WA) Secondary

111N00000X Chiropractor Chiropractic Providers · License 5095 (AZ) 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

Where does Ronald Decausemaker practice?

The practice location on file with NPPES is in Fremont, CA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Ronald Decausemaker?

The National Provider Identifier (NPI) for Ronald Decausemaker is 1558368027, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.