Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Aaron Lyon, MD

Q: What is the NPI number for Aaron Lyon?

The National Provider Identifier (NPI) for Aaron Lyon is 1700680378, a Type 1 (individual) record in the CMS NPPES registry.

Diagnostic Radiology Physician in Grand Rapids, MI · enumerated 2025.

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

National Provider Identifier

1700680378

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Aaron Lyon

Credential MD

Sex Male

Practice address 100 Michigan St Ne Ste A601, Grand Rapids, MI, 49503

Phone (616) 391-6243

Fax (616) 391-8611

Enumeration date Apr 2, 2025

Last updated in NPPES May 10, 2026

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 5315256797 (MI) 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

What is the NPI number for Aaron Lyon?

The National Provider Identifier (NPI) for Aaron Lyon is 1700680378, a Type 1 (individual) record in the CMS NPPES registry.

Where does Aaron Lyon practice?

The practice location on file with NPPES is in Grand Rapids, MI. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-05-10.