Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Gregory William Logan, D.C.
Chiropractor in Ann Arbor, MI · enumerated 2017.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1740721646
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Dr. Gregory William Logan
Credential D.C.
Sex Male
Practice address 6276 Jackson Rd Ste K, Ann Arbor, MI, 48103
Phone (734) 660-5869
Enumeration date Mar 13, 2017
Last updated in NPPES Feb 21, 2025
Taxonomy & licenses
DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders.
About the DC 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.
Frequently asked questions
How do I verify Gregory Logan's NPI record?
Cross-check NPI 1740721646 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1740721646 active?
Yes, as of the latest NPPES snapshot, NPI 1740721646 is active (record last updated 2025-02-21).
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-02-21.