Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marten J. Sikorski, DPM

Podiatrist in Springfield, IL · enumerated 2006.

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

National Provider Identifier

1811081177

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Registry record

Entity type Individual (Type 1)

Name Marten J. Sikorski

Credential DPM

Sex Male

Practice address 800 N. 1st Street, Springfield, IL, 62702

Phone (217) 528-7541

Enumeration date Oct 3, 2006

Last updated in NPPES May 20, 2020

Taxonomy & licenses

213E00000X Podiatrist Podiatric Medicine & Surgery Service Providers · License 016-004991 (IL) Primary

DPM · Doctor of Podiatric Medicine: A physician specializing in medical and surgical care of the foot and ankle. About the DPM credential

Other identifiers

Identifier	Type	State	Issuer
016004991	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

Where does Marten Sikorski practice?

The practice location on file with NPPES is in Springfield, IL. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Marten Sikorski?

The National Provider Identifier (NPI) for Marten Sikorski is 1811081177, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-05-20.