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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William Charles Erdel, M.D.

Gastroenterology Physician in Indianapolis, IN · enumerated 2005.

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

National Provider Identifier

1790781037

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Registry record

Entity type Individual (Type 1)
Name Dr. William Charles Erdel
Credential M.D.
Sex Male
Practice address 8902 N Meridian St, Ste 225, Indianapolis, IN, 46260
Phone (317) 872-1161
Fax (317) 875-3286
Enumeration date Jun 22, 2005
Last updated in NPPES Sep 26, 2012

Taxonomy & licenses

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License 01025340 (IN) 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
10781696 Other IN CAQH
20001060A Medicaid IN -

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 1790781037 active?
Yes, as of the latest NPPES snapshot, NPI 1790781037 is active (record last updated 2012-09-26).
How do I verify William Erdel's NPI record?
Cross-check NPI 1790781037 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 2012-09-26.