NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Lawrence J Horn, MD

Physical Medicine & Rehabilitation Physician in Detroit, MI · enumerated 2006.

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

National Provider Identifier

1942240817

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Lawrence J Horn
Credential MD
Sex Male
Practice address Rehabilitation Institute of Michigan, 261 Mack Blvd, Detroit, MI, 48201
Phone (313) 745-4600
Fax (313) 745-1063
Enumeration date Jun 7, 2006
Last updated in NPPES Feb 22, 2019

Taxonomy & licenses

208100000X Physical Medicine & Rehabilitation Physician Allopathic & Osteopathic Physicians · License MD2018-0791 (NM) Secondary
208100000X Physical Medicine & Rehabilitation Physician Allopathic & Osteopathic Physicians · License 4301085039 (MI) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1942240817 active?
Yes, as of the latest NPPES snapshot, NPI 1942240817 is active (record last updated 2019-02-22).
How do I verify Lawrence Horn's NPI record?
Cross-check NPI 1942240817 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-02-22.