NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Matthew Lewis Law

Hospitalist Physician in Little Rock, AR · enumerated 2012.

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

National Provider Identifier

1598022535

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Registry record

Entity type Individual (Type 1)
Name Matthew Lewis Law
Sex Male
Practice address Little Rock, AR, 72205
Phone (501) 552-4677
Fax (501) 552-4555
Enumeration date Apr 16, 2012
Last updated in NPPES Dec 9, 2019

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License E-9120 (AR) Secondary
208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License E-9120 (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 NPI 1598022535 active?
Yes, as of the latest NPPES snapshot, NPI 1598022535 is active (record last updated 2019-12-09).
How do I verify Matthew Law's NPI record?
Cross-check NPI 1598022535 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-12-09.