Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alan H. Klein, M.D.

Orthopaedic Surgery Physician in Chesterfield, MI · enumerated 2005.

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

National Provider Identifier

1609877463

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Registry record

Entity type Individual (Type 1)

Name Alan H. Klein

Credential M.D.

Sex Male

Practice address 30795 23 Mile Rd, Chesterfield, MI, 48047

Phone (586) 228-6200

Fax (586) 228-6201

Enumeration date Aug 2, 2005

Last updated in NPPES Mar 17, 2025

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License MD042946L (PA) Secondary

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 4301500979 (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 1609877463 active?

Yes, as of the latest NPPES snapshot, NPI 1609877463 is active (record last updated 2025-03-17).

How do I verify Alan Klein's NPI record?

Cross-check NPI 1609877463 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 2025-03-17.