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David Carter Redfern, MD

Allergy & Immunology Physician in Waterloo, IA · enumerated 2006.

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

National Provider Identifier

1750334751

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Registry record

Entity type Individual (Type 1)
Name David Carter Redfern
Credential MD
Sex Male
Practice address 1753 W Ridgeway Ave, Ste 106, Waterloo, IA, 50701
Phone (319) 833-5982
Fax (319) 833-5983
Enumeration date May 18, 2006
Last updated in NPPES Oct 9, 2007

Taxonomy & licenses

207K00000X Allergy & Immunology Physician Allopathic & Osteopathic Physicians · License 30869 (IA) 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
42141730749 Other IA JOHN DEERE HEALTH CARE
52489 Other IA WELLMARK INS PLAN
0132373 Medicaid IA -

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 NPI 1750334751 active?
Yes, as of the latest NPPES snapshot, NPI 1750334751 is active (record last updated 2007-10-09).
How do I verify David Redfern's NPI record?
Cross-check NPI 1750334751 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 2007-10-09.