Optometrist
Dr. JOHN O'BLOCK O.D.
Identity confirmed via CMS NPPES · September 30, 2026 · A directory match is not a coverage approval.
Is this your practice? This listing was imported from public provider identity data (CMS NPPES) and has not yet been claimed. Claim this listing to confirm the practice details. Plan acceptance stays unpublished until the practice reports it.
Public record
NPI 1427200724 · enumerated 2008-10-17 · record updated 2014-05-07. Source: CMS NPPES. A listing is not a TRICARE network approval.
NPPES recordGoogle Maps Apple Maps OpenStreetMap
Addresses and phones
- Mailing address 6 TSIENNETO RD STE 101, DERRY, NH, 03038-1584 (603) 434-4193 Fax (603) 437-6804 Google Maps Apple Maps OpenStreetMap
- Practice location 6 TSIENNETO ROAD SUITE 101, DERRY, NH, 03038 (603) 434-4193 Fax (603) 437-6804 Google Maps Apple Maps OpenStreetMap
Specialties
- Optometrist 152W00000X · Primary · License 0823 NH
In this directory
Locations and evidence
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Practice location
DERRY, NH, 03038
Accepting new patientsNot reportedCMS NPPES · September 30, 2026
Plan acceptance
- No published plan acceptance yet. Confirm directly with the practice, or claim this listing if it's yours.