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

Alex P Pallas, DO

Diagnostic Radiology Physician in Mchenry, IL · enumerated 2010.

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

National Provider Identifier

1235455262

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Registry record

Entity type Individual (Type 1)
Name Alex P Pallas
Credential DO
Sex Male
Practice address Mchenry, IL, 60050
Phone (815) 334-5566
Fax (815) 759-4008
Enumeration date Apr 15, 2010
Last updated in NPPES Oct 30, 2025

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

Taxonomy & licenses

2085R0204X Vascular & Interventional Radiology Physician Allopathic & Osteopathic Physicians · License 20A14311 (CA) Secondary
2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License S7748 (TX) Secondary
2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License OS020173 (PA) Secondary
2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 036151032 (IL) Primary
2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License OS16401 (FL) Secondary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

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

How do I verify Alex Pallas's NPI record?
Cross-check NPI 1235455262 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1235455262 active?
Yes, as of the latest NPPES snapshot, NPI 1235455262 is active (record last updated 2025-10-30).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-10-30.