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

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: August 09, 2026.

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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Other Providers at the Same Location NPPES 17

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

LYDIA MARY PEABODY LMSW
Social Worker
2 WISCONSIN CIR
BETHESDA, MD 20815
Montgomery County (301) 664-2799
ANNA ALLSHOUSE
Counselor (Mental Health)
2 WISCONSIN CIR
CHEVY CHASE, MD 20815
Montgomery County (202) 656-3681
DR. FAITH M SPROUL PH.D.
Psychologist
2 WISCONSIN CIR
CHEVY CHASE, MD 20815
Montgomery County (202) 810-2198
DR. HYLTON RICHARD MAYER M. D.
Ophthalmology
2 WISCONSIN CIR, SUITE 230
CHEVY CHASE, MD 20815
Montgomery County (301) 215-7100
GENESIS HEALTH & EDUCATION
Early Intervention Provider Agency
2 WISCONSIN CIR, SUITE 700
CHEVY CHASE, MD 20815
Montgomery County (703) 349-0034
DR. STEPHEN PETER HERSH M.D.
Specialist
2 WISCONSIN CIR, SUITE 650
CHEVY CHASE, MD 20815
Montgomery County (301) 654-3638
DR. EDWARD W BERNTON M.D.
Internal Medicine
2 WISCONSIN CIR, SUITE 700
CHEVY CHASE, MD 20815
Montgomery County (240) 920-8571
DR. DEEPIKA SHAH MD, MPH
Ophthalmology
2 WISCONSIN CIR, SUITE 230
CHEVY CHASE, MD 20815
Montgomery County (301) 215-7100

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is John O'neill's NPI number?

The NPI number for John O'neill is 1346238516. It was assigned to this individual provider in the NPPES registry on October 11, 2005.

Where is John O'neill located?

John O'neill practices at 2 Wisconsin Cir Suite 200, Chevy Chase, MD 20815. The listed phone number is (301) 215-7100.

What is John O'neill's specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

When was this NPI record last updated?

The NPPES record for John O'neill was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.