Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Michael A Sefcik, DC
Chiropractor in Blairstown, NJ · enumerated 2011.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1457645871
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Registry record
Entity type Individual (Type 1)
Name Dr. Michael A Sefcik
Credential DC
Sex Male
Practice address 174 State Route 94, Blairstown, NJ, 07825
Phone (908) 362-9522
Enumeration date Jun 2, 2011
Last updated in NPPES Dec 5, 2017
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
Is NPI 1457645871 active?
Yes, as of the latest NPPES snapshot, NPI 1457645871 is active (record last updated 2017-12-05).
How do I verify Michael Sefcik's NPI record?
Cross-check NPI 1457645871 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all → Edward Kramer Chiropractor · Blairstown, NJ NPI 1285762401 John Harrington Nutrition Chiropractor · Blairstown, NJ NPI 1306976329 Northwest Optometry Group, P.A. Optometrist · Blairstown, NJ NPI 1114191715 Edward Kramer Jr Chiropractor · Blairstown, NJ NPI 1497907950 Lisa Ruffle Optometrist · Blairstown, NJ NPI 1710235478 Mission Chiropractic, LLC Chiropractor · Blairstown, NJ NPI 1245743673
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-12-05.