Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

David Bentrem, MD

Surgical Oncology Physician in Chicago, IL · enumerated 2005.

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

National Provider Identifier

1821072919

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Registry record

Entity type Individual (Type 1)

Name David Bentrem

Credential MD

Sex Male

Practice address 675 N Saint Clair St, Suite 100, Chicago, IL, 60611

Phone (312) 695-1130

Fax (312) 695-1144

Enumeration date Dec 1, 2005

Last updated in NPPES Jun 22, 2009

Taxonomy & licenses

2086X0206X Surgical Oncology Physician Allopathic & Osteopathic Physicians · License 036099284 (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
036099284	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

Is NPI 1821072919 active?

Yes — as of the latest NPPES snapshot, NPI 1821072919 is active (record last updated 2009-06-22).

How do I verify David Bentrem's NPI record?

Cross-check NPI 1821072919 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 2009-06-22.