Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Judith P. Knox, M.D.

Dermatology Physician in Springfield, IL · enumerated 2006.

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

National Provider Identifier

1467550772

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Registry record

Entity type Individual (Type 1)

Name Judith P. Knox

Credential M.D.

Sex Female

Practice address 1025 S 6th St, Springfield, IL, 62703

Phone (217) 528-7541

Enumeration date Sep 20, 2006

Last updated in NPPES May 21, 2020

Taxonomy & licenses

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License 036-086319 (IL) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
036086319	Medicaid	IL	-

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

How do I verify Judith Knox's NPI record?

Cross-check NPI 1467550772 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1467550772 active?

Yes, as of the latest NPPES snapshot, NPI 1467550772 is active (record last updated 2020-05-21).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-05-21.