NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

J. Michael Gruenwald, MD FACS

Orthopaedic Trauma Physician in Little Rock, AR · enumerated 2006 · practices at Divine Mercy Health Center.

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

National Provider Identifier

1275623761

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Registry record

Entity type Individual (Type 1)
Name J. Michael Gruenwald
Credential MD FACS
Sex Male
Practice address 6221 Colonel Glenn Rd Ste B, Little Rock, AR, 72204
Phone (501) 441-5558
Enumeration date Oct 13, 2006
Last updated in NPPES Nov 18, 2025

Taxonomy & licenses

207XX0801X Orthopaedic Trauma Physician Allopathic & Osteopathic Physicians · License C-8343 (AR) Primary

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 J. Gruenwald?
J. Gruenwald is registered in NPPES with the primary taxonomy of Orthopaedic Trauma Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-11-18.