Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

John M Lewis, MD

Glaucoma Specialist (Ophthalmology) Physician in Mesa, AZ · enumerated 2006.

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

National Provider Identifier

1851364814

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Registry record

Entity type Individual (Type 1)

Name John M Lewis

Credential MD

Sex Male

Practice address 4760 E Falcon Dr Ste 101, Mesa, AZ, 85215

Phone (480) 985-7400

Fax (480) 396-6362

Enumeration date Feb 9, 2006

Last updated in NPPES Apr 30, 2019

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 17163 (AZ) Secondary

207WX0009X Glaucoma Specialist (Ophthalmology) Physician Allopathic & Osteopathic Physicians · License 17163 (AZ) 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

How do I verify John Lewis's NPI record?

Cross-check NPI 1851364814 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1851364814 active?

Yes, as of the latest NPPES snapshot, NPI 1851364814 is active (record last updated 2019-04-30).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-04-30.