Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Dr Robert G Marx DDS and Associates LLC

General Practice Dentistry in Gladstone, MO · enumerated 2018 · authorized official Robert Marx, Dentist/Owner.

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

National Provider Identifier

1861991416

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)

Legal business name Dr Robert G Marx DDS and Associates LLC

Practice address 5708 N Broadway St, Gladstone, MO, 64118

Phone (816) 452-2000

Fax (816) 450-2406

Enumeration date Feb 9, 2018

Last updated in NPPES Feb 9, 2018

Taxonomy & classification

1223G0001X General Practice Dentistry Dental Providers · License 012690 (MO) Primary

Authorized official

Name Robert Marx

Title Dentist/Owner

Phone (816) 452-2000

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 is Dr Robert G Marx DDS and Associates LLC located?

The practice location on file with NPPES is in Gladstone, MO.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2018-02-09. Verify at npiregistry.cms.hhs.gov.

Providers at this address

Browse all →

Douglas Arjes General Practice Dentistry · Gladstone, MO NPI 1831273408 Dr Robert G Marx DDS & Associates LLC General Practice Dentistry · Gladstone, MO NPI 1730246166 Emily Marx General Practice Dentistry · Gladstone, MO NPI 1528471778

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-02-09.