Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. John Stephen Lange, DDS
Dentist in Sparta, MI · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1437190469
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Registry record
Entity type Individual (Type 1)
Name Dr. John Stephen Lange
Credential DDS
Sex Male
Practice address 62 N Union, Sparta, MI, 49345
Phone (616) 887-7355
Fax (616) 887-2005
Enumeration date Jun 9, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees.
About the DDS credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 4046509 | 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.
Frequently asked questions
Is NPI 1437190469 active?
Yes, as of the latest NPPES snapshot, NPI 1437190469 is active (record last updated 2007-07-08).
How do I verify John Lange's NPI record?
Cross-check NPI 1437190469 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.