Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. John Anthony Matlock, D.C.
Chiropractor in Phillipsburg, NJ · enumerated 2010.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1033436290
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Registry record
Entity type Individual (Type 1)
Name Dr. John Anthony Matlock
Credential D.C.
Sex Male
Practice address 291 Pickford Avenue, Phillipsburg, NJ, 08865
Phone (908) 859-0300
Fax (908) 859-0315
Enumeration date Apr 28, 2010
Last updated in NPPES Dec 9, 2015
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
What specialty is John Matlock?
John Matlock is registered in NPPES with the primary taxonomy of Chiropractor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-12-09.