Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Anton Johnson, M.D.

Nuclear Medicine Physician in Springfield, IL · enumerated 2006.

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

National Provider Identifier

1215040209

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Registry record

Entity type Individual (Type 1)

Name Dr. Anton Johnson

Credential M.D.

Sex Male

Practice address 800 E Carpenter St, Department of Radiology, Springfield, IL, 62702

Phone (217) 544-6464

Fax (217) 525-5671

Enumeration date Aug 16, 2006

Last updated in NPPES Jan 3, 2024

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 036-095564 (IL) Secondary

207U00000X Nuclear Medicine Physician Allopathic & Osteopathic Physicians · License 036095564 (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
300076409	Other	IL	RR MEDICARE
300073513	Other	IL	RR MEDICARE
36095564	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.

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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 Anton Johnson?

Anton Johnson is registered in NPPES with the primary taxonomy of Nuclear Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-01-03.