NPI Portal NPI Lookup & Verification

William C Eby, M.D.

William C Eby is a Anatomic Pathology & Clinical Pathology Physician provider (Pathology) practicing in Peoria, IL, registered in the NPPES registry with NPI 1326092263 since 2006. The credential MD stands for Doctor of Medicine.

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NPI 1326092263
Entity type Individual (Type 1)
Name William C Eby
Credential M.D.
Sex Male
Practice address 221 NE GLEN OAK AVE, Peoria, IL, 61636
Phone 3096724918
Enumeration date 2006-05-22
Last updated in NPPES 2007-07-12

Taxonomy & licenses

Taxonomy code Specialty Primary License State
207ZP0102X Anatomic Pathology & Clinical Pathology Physician Primary IL

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
0360508421 Medicaid IL
Copy-ready billing details
Provider: William Eby, M.D.
NPI: 1326092263
Taxonomy: 207ZP0102X (Anatomic Pathology & Clinical Pathology Physician)
Address: 221 NE GLEN OAK AVE, Peoria, IL, 61636

Other providers at this practice address

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1851384135 John Howerton Individual Pharmacotherapy Pharmacist Peoria, IL
1811983489 Roby Lal Individual Radiation Oncology Physician Peoria, IL
1225027220 Christopher Mccarthy Individual Anesthesiology Physician Peoria, IL
1073594057 Heartland Home Health Care Organization Pharmacy Peoria, IL
1023094190 Waqas Ali Individual Internal Medicine Physician Peoria, IL
1043298334 Matthew Carpenter Individual Radiation Oncology Physician Peoria, IL
1508830969 Ryan Finkenbine Individual Psychiatry Physician Peoria, IL
1871560623 Minna O'Leary Individual Psychiatry Physician Peoria, IL

Verify this record

Cross-check NPI 1326092263 against the authoritative CMS record: view William C Eby on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is William Eby?
William Eby is registered in NPPES with the primary taxonomy of Anatomic Pathology & Clinical Pathology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-12.