Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mark J Lieffring, D.C.
Chiropractor in Cloquet, MN · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1245325703
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Registry record
Entity type Individual (Type 1)
Name Mark J Lieffring
Credential D.C.
Sex Male
Practice address 1219 14th St, Suite C, Cloquet, MN, 55720
Phone (218) 878-0895
Fax (218) 485-8941
Enumeration date Oct 3, 2006
Last updated in NPPES Nov 15, 2011
Taxonomy & licenses
DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders.
About the DC credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 055527400 | Medicaid | MN | - |
| 61950LI | Other | MN | BCBS ID |
| 230492 | Other | MN | ACN ID |
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 1245325703 active?
Yes, as of the latest NPPES snapshot, NPI 1245325703 is active (record last updated 2011-11-15).
How do I verify Mark Lieffring's NPI record?
Cross-check NPI 1245325703 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 2011-11-15.