Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Ronald Maxwell Masters, D.C.

Chiropractor in South Haven, MI · enumerated 2011 · practices at Max Masters Dc Pllc.

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

National Provider Identifier

1366748923

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Registry record

Entity type Individual (Type 1)

Name Dr. Ronald Maxwell Masters

Credential D.C.

Sex Male

Practice address 1675 Phoenix St Ste 9, South Haven, MI, 49090

Phone (269) 639-2545

Fax (269) 639-2137

Enumeration date Jan 31, 2011

Last updated in NPPES Sep 16, 2015

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License 2301009746 (MI) Primary

111N00000X Chiropractor Chiropractic Providers · License 038012165 (IL) Secondary

DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential

Other identifiers

Identifier	Type	State	Issuer
0044472879	Medicaid	MI	-
950A310570	Other	MI	BCBSM
G06732	Other	MI	BCN

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.

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Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Ronald Masters?

Ronald Masters is registered in NPPES with the primary taxonomy of Chiropractor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Max Masters Dc Pllc Chiropractor · South Haven, MI NPI 1255700639

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-09-16.