Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. John Michael O'Block, OD

Individual provider Optometrist · NPI 1427200724

Dr. John Michael O'Block, OD is an Optometry in Derry, New Hampshire. Graduated from New England College of Optometry in 2004, 22 years ago. Practices with Spindel Eye Associates PC, a 12-clinician group and accepts Medicare assignment. Licensed in New Hampshire.

Years since qualifying
22
Trained at
New England College of Optometry
Licensed in
NH
In the registry since
2008
What do these letters mean?
OD — Doctor of Optometry
An optometrist: examines eyes, prescribes glasses and contacts, and treats many eye conditions.

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Practice location Address checks out

6 Tsienneto Rd Ste 101
Derry, NH 03038
Phone: (603) 434-4193
Fax: (603) 437-6804
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence 0823 (NH)

Record details

NPI number1427200724
Entity typeIndividual (Type 1)
GenderMale
Credentials OD
Sole proprietorYes
NPI enumeratedOctober 17, 2008
Last updated in NPPESMay 7, 2014
Mailing address6 Tsienneto Rd Ste 101, Derry, NH 03038-1584

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyOPTOMETRY
Medical schoolNEW ENGLAND COLLEGE OF OPTOMETRY
Graduated 2004 (22 years in practice)
Group practice Spindel Eye Associates Pc — 12 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Derry