NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. David Rosenfeld, M.D.

Dermatology Physician in Chicago, IL · enumerated 2017 · practices at Rush University Medical Center.

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

National Provider Identifier

1679004832

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Registry record

Entity type Individual (Type 1)
Name Dr. David Rosenfeld
Credential M.D.
Sex Male
Practice address Chicago, IL, 60612
Phone (312) 694-6647
Enumeration date Mar 21, 2017
Last updated in NPPES Jun 11, 2024

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License 01088106A (IN) Secondary
207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License 036165389 (IL) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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.

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Frequently asked questions

How do I verify David Rosenfeld's NPI record?
Cross-check NPI 1679004832 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1679004832 active?
Yes, as of the latest NPPES snapshot, NPI 1679004832 is active (record last updated 2024-06-11).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-06-11.