Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. James B Marx, DO

Family Medicine Physician in Independence, MO · enumerated 2006 · practices at Centerwell Senior Primary Care Mo PC.

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

National Provider Identifier

1306817986

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. James B Marx

Credential DO

Sex Male

Practice address 300 N Osage St Ste 200, Independence, MO, 64050

Phone (816) 623-6503

Enumeration date Jan 31, 2006

Last updated in NPPES Apr 4, 2025

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 102085 (MO) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
247741713	Medicaid	MO	-
080081027	Other	-	RAILROAD MEDICARE
21001033	Other	-	BCBS OF KC INDIVIDUAL #

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 specialty is James Marx?

James Marx is registered in NPPES with the primary taxonomy of Family Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

Other providers at this practice address

Browse all →

Centerwell Senior Primary Care Mo PC Internal Medicine Physician · Independence, MO NPI 1629785613

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-04-04.