Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Glen D Libby, MD

Pediatric Critical Care Medicine Physician in Kalamazoo, MI · enumerated 2006.

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

National Provider Identifier

1144200742

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Registry record

Entity type Individual (Type 1)

Name Glen D Libby

Credential MD

Sex Male

Practice address 601 John St, Ste 352, Kalamazoo, MI, 49007

Phone (269) 341-8986

Fax (269) 341-6236

Enumeration date Jan 19, 2006

Last updated in NPPES Oct 16, 2014

Taxonomy & licenses

2080P0203X Pediatric Critical Care Medicine Physician Allopathic & Osteopathic Physicians · License 4301050097 (MI) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
1744625	Medicaid	MI	-

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

How do I verify Glen Libby's NPI record?

Cross-check NPI 1144200742 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1144200742 active?

Yes, as of the latest NPPES snapshot, NPI 1144200742 is active (record last updated 2014-10-16).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-10-16.