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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Rita Joanne Herzing, M.D.

Internal Medicine Physician in Glen Ellyn, IL · enumerated 2008.

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

National Provider Identifier

1316103559

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Registry record

Entity type Individual (Type 1)
Name Dr. Rita Joanne Herzing
Credential M.D.
Sex Female
Practice address 430 Pennsylvania Ave Ste 310, Glen Ellyn, IL, 60137
Phone (630) 790-1792
Fax (630) 545-7568
Enumeration date Aug 6, 2008
Last updated in NPPES Aug 8, 2023

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 036122493 (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
036122493 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.

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Frequently asked questions

Is NPI 1316103559 active?
Yes, as of the latest NPPES snapshot, NPI 1316103559 is active (record last updated 2023-08-08).
How do I verify Rita Herzing's NPI record?
Cross-check NPI 1316103559 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 2023-08-08.