Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. John David Seng, OD

Individual provider Optometrist · NPI 1487630943

Dr. John David Seng, OD is an Optometry in Findlay, Ohio. Graduated from Ohio State University - College of Optometry in 1982, 44 years ago. Accepts Medicare assignment. Licensed in Ohio.

Years since qualifying
44
Trained at
Ohio State University - College of Optometry
Licensed in
OH
In the registry since
2005
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

800 N Main St
Findlay, OH 45840-3550
Phone: (419) 424-2002
Fax: (419) 424-5600
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence 3635 T184 (OH)

Record details

NPI number1487630943
Entity typeIndividual (Type 1)
GenderMale
Credentials OD
Sole proprietorNo
NPI enumeratedDecember 16, 2005
Last updated in NPPESJuly 13, 2026
Mailing address800 N Main St, Findlay, OH 45840-3550

Medicare enrollment

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

Medicare specialtyOPTOMETRY
Medical schoolOHIO STATE UNIVERSITY - COLLEGE OF OPTOMETRY
Graduated 1982 (44 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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