NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Simon Macdonald, M.D.

Student in an Organized Health Care Education/Training Program in Chicago, IL · enumerated 2023.

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

National Provider Identifier

1386334985

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Registry record

Entity type Individual (Type 1)
Name Mr. Simon Macdonald
Credential M.D.
Sex Male
Practice address 225 E. Chicago Avenue, Chicago, IL, 60611
Phone (312) 227-4000
Enumeration date May 9, 2023
Last updated in NPPES Nov 14, 2023

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care · License 125.081144 (IL) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1386334985 active?
Yes, as of the latest NPPES snapshot, NPI 1386334985 is active (record last updated 2023-11-14).
How do I verify Simon Macdonald's NPI record?
Cross-check NPI 1386334985 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 2023-11-14.