Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Randolph Joseph Grierson III, D.O.

Orthopaedic Surgery Physician in Ludington, MI · enumerated 2007.

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

National Provider Identifier

1013041532

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Registry record

Entity type Individual (Type 1)

Name Randolph Joseph Grierson III

Credential D.O.

Sex Male

Practice address 7 Atkinson Dr Ste 200, Ludington, MI, 49431

Phone (231) 843-2664

Fax (231) 845-6873

Enumeration date Mar 15, 2007

Last updated in NPPES Mar 4, 2021

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 5101015592 (MI) 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

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

How do I verify Randolph Grierson's NPI record?

Cross-check NPI 1013041532 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1013041532 active?

Yes, as of the latest NPPES snapshot, NPI 1013041532 is active (record last updated 2021-03-04).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-03-04.