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

Jude R Duval, M.D.

Maternal & Fetal Medicine Physician in Elgin, IL · enumerated 2006.

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

National Provider Identifier

1235171877

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Registry record

Entity type Individual (Type 1)

Name Jude R Duval

Credential M.D.

Sex Male

Practice address Elgin, IL, 60123

Phone (224) 783-8975

Fax (630) 762-9681

Enumeration date Jun 11, 2006

Last updated in NPPES Jan 30, 2025

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

Taxonomy & licenses

207VM0101X Maternal & Fetal Medicine Physician Allopathic & Osteopathic Physicians · License 036091034 (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
1821256355	Other	IL	NPI FOR MATERNAL FETAL CONSULTANTS, SC
04532078	Other	IL	BLUECROSS BLUESHIELD
036091034	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 1235171877 active?

Yes, as of the latest NPPES snapshot, NPI 1235171877 is active (record last updated 2025-01-30).

How do I verify Jude Duval's NPI record?

Cross-check NPI 1235171877 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-01-30.