Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Marc Feder, D.P.M.

Podiatrist in Chicago, IL · enumerated 2005.

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

National Provider Identifier

1881688265

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Registry record

Entity type Individual (Type 1)

Name Dr. Marc Feder

Credential D.P.M.

Sex Male

Practice address 4211 N Cicero Ave, Suite 301, Chicago, IL, 60641

Phone (773) 202-8800

Fax (773) 202-8810

Enumeration date Aug 31, 2005

Last updated in NPPES Jan 25, 2008

Taxonomy & licenses

213E00000X Podiatrist Podiatric Medicine & Surgery Service Providers Primary

DPM · Doctor of Podiatric Medicine: A physician specializing in medical and surgical care of the foot and ankle. About the DPM 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 NPI 1881688265 active?

Yes, as of the latest NPPES snapshot, NPI 1881688265 is active (record last updated 2008-01-25).

How do I verify Marc Feder's NPI record?

Cross-check NPI 1881688265 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-01-25.