Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Justin Matthew Knox, PA

Physician Assistant in Anderson, IN · enumerated 2020.

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

National Provider Identifier

1649886557

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Registry record

Entity type Individual (Type 1)

Name Justin Matthew Knox

Credential PA

Sex Male

Practice address 141 W 22nd St, Anderson, IN, 46016

Phone (765) 641-7100

Enumeration date Sep 17, 2020

Last updated in NPPES Mar 3, 2026

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 50.006619 (OH) Secondary

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 10004559A (IN) Primary

PA · Physician Assistant: A licensed clinician who practices medicine in collaboration with physicians, trained in a graduate PA program. About the PA 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 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.

What specialty is Justin Knox?

Justin Knox is registered in NPPES with the primary taxonomy of Physician Assistant. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

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Donald Perez Ophthalmology Physician · Anderson, IN NPI 1912904954 Trent Rees Physician Assistant · Anderson, IN NPI 1316913726 Anderson Urologic Associates, P.C. Urology Physician · Anderson, IN NPI 1194791509 Chad Lamb Family Medicine Physician · Anderson, IN NPI 1225066392 Saint John Health System Family Medicine Physician · Anderson, IN NPI 1396773461 Charles Purdy Family Medicine Physician · Anderson, IN NPI 1932134046 Sharon Binkerd Clinical Social Worker · Anderson, IN NPI 1902823081 Gary Vaughn Psychologist · Anderson, IN NPI 1578583670

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-03-03.