Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. William Mark Magill, D.C.

Chiropractor in Morris Plains, NJ · enumerated 2016.

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

National Provider Identifier

1316499163

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Registry record

Entity type Individual (Type 1)

Name Dr. William Mark Magill

Credential D.C.

Sex Male

Practice address Morris Plains, NJ, 07950

Phone (973) 454-6475

Enumeration date Oct 27, 2016

Last updated in NPPES Oct 27, 2016

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License 38MC00737800 (NJ) Primary

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1316499163 active?

Yes, as of the latest NPPES snapshot, NPI 1316499163 is active (record last updated 2016-10-27).

How do I verify William Magill's NPI record?

Cross-check NPI 1316499163 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 2016-10-27.