JOHN F. O'NEILL MD
NPI 1346238516
Ophthalmology in Chevy Chase, MD

Q: What is the provider's specialty?

The provider's specialty is Ophthalmology with taxonomy code 207W00000X.

Active since October 11, 2005

2 WISCONSIN CIR, SUITE 200, CHEVY CHASE, MD 20815(301) 215-7100 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: July 19, 2026.

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About John F. O'neill Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JOHN F. O'NEILL MD (NPI 1346238516) is an individual ophthalmology provider in Chevy Chase, Maryland, licensed in Maryland (D0009712) and active in the NPI registry since October 2005.

NPPES Registry Identity

NPI1346238516

Entity TypeIndividualMale

Primary Taxonomy207W00000X

Provider Legal NameJOHN F. O'NEILLCredential: MD

Location Address2 WISCONSIN CIR, SUITE 200Chevy Chase, MD 20815-7003

Mailing Address2 Wisconsin Cir, Suite 200Chevy Chase, MD 20815-7003 · (301) 215-7100

Phone(301) 215-7100

Sole ProprietorNo

Enumeration DateOctober 11, 2005

Last NPPES UpdateSeptember 11, 2025

✔ NPI 1346238516 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians

Taxonomy Code207W00000X

License✔ Licensed in MD · D0009712

Definition

An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.

Also ListedPediatricsTaxonomy 208000000X · License 2982 (DC)

2 WISCONSIN CIR, Chevy Chase, MD 20815

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