DR. JOHN C DUFF (O.D.) – Optometrist, NPI 1629033394

DR. JOHN C DUFF (O.D.) is a healthcare provider. based in Brattleboro, Vermont. specializing in Optometrist. They hold the professional credentials O.D.. They hold a License No. 030000175 (VT). The NPI Number for DR. JOHN C DUFF (O.D.) is 1629033394

Main info

Male
Sole Proprietor
48 Years Of Experience
Accepts Medicare Assignment
Name
DR. JOHN C DUFF (O.D.)
NPI
1629033394
Phone
(802) 254-6611
Address
399 CANAL ST
Enumeration Date
18 April 2006
Last Update Date
27 March 2014

Doctor Profile

Medical School Name
PENNSYLVANIA COLLEGE OF OPTOMETRY
Secondary Phone
8028854190
Graduation Year
1978 (48 years ago)
PAC ID
5597887661
Professional Enrollment ID
I20101214000139
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience54
Completeness75
Years active:20State licenses:1Digital endpointsOther names

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Provider Addresses for DR. JOHN C DUFF (O.D.)

  • 399, Canal Street, Brattleboro Downtown Historic District, Fairview Village, Brattleboro, Windham County, Vermont, 05304, United States

    BRATTLEBORO, VT 053016619

    Phone: (802) 254-6611

    Fax: (802) 258-4655

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

No Medicare enrollment or revalidation data available for this provider in our database.

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Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 05301)

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Reviews

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Frequently asked questions

What is the 10-digit NPI for DR. JOHN C DUFF (O.D.)?
DR. JOHN C DUFF (O.D.) — NPI 1629033394 — is the standard way to identify this listing.
Is DR. JOHN C DUFF (O.D.) still practicing?
DR. JOHN C DUFF (O.D.) is currently listed as active in the public NPI registry.
What taxonomy line describes DR. JOHN C DUFF (O.D.)?
For research purposes, treat DR. JOHN C DUFF (O.D.) as Optometrist in this dataset. Clinical services aligned with this taxonomy classification.
Does DR. JOHN C DUFF (O.D.) list a practice location?
Patients near Brattleboro, Vermont may find DR. JOHN C DUFF (O.D.) in results; validate coverage separately.
How many locations tie to this NPI?
2 practice locations appear in the available data.

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