John David Seng, OD
Optometrist · Findlay, OH
John David Seng, OD is an optometrist with a practice address in Findlay, Ohio, and NPI 1487630943, issued on Dec 16, 2005. Check the license (Ohio 3635 T184, as entered in NPPES) with the Ohio board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John David Seng
- Credential
- OD
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 3635 T184 OH
Self-reported in NPPES; status is on the state search - Practice location
- 800 N Main St, Findlay, OH 45840
- Phone
- (419) 424-2002
- Enumerated
- Dec 16, 2005
- Record last updated
- Jul 13, 2026
- Fax
- (419) 424-5600
- Medicaid ID
- 0518541 OH
- Medicare enrollment
- Enrolled (PECOS I20101028000283); accepts Medicare assignment
- Medical or professional school
- Ohio State University - College Of Optometry, 1982
- Entity
- Type 1 · individual
8 nearest optometrist records → All 2,443 in Ohio → Look up another NPI →
Verify John David Seng in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Ohio board licenses this profession
Search for license 3635 T184Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
21% more Medicare Part D claims than the average optometrist in 2024
335 Medicare Part D claims for 88 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 25% of claims.
Most prescribed
- Latanoprost186 claims
- Neomycin-Polymyxin-Dexameth40 claims
- Timolol Maleate33 claims
- Brimonidine Tartrate15 claims
- Lumigan11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
John David Seng among 2,443 optometrist records in Ohio
John David Seng, OD is one of 2,443 optometrist records with a practice address in Ohio. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 89% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1982 · median 2006 among the 1,466 with a school on file
- Record last updated2026 · 70% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Optometrist providers in Ohio
There are 2,443 optometrist records in Ohio.
All 2,443 in Ohio → Every provider in Findlay → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Donald Alexander, ODFindlay, OH 458401952329955
- Jeffrey Dailey, O.D.Findlay, OH 458401346351186
- Kurt Ebersole, ODFindlay, OH 458401790785210
- Rose HayesFindlay, OH 458401245913193
- Richard Herr, O.D.Findlay, OH 458401467531020
- Michelle Kleman, O.D.Findlay, OH 458401659997005
- Laura Paulus, O.D.Findlay, OH 458401801069976
- Timothy Reineck, O.D.Findlay, OH 458401679565022
Common questions
What is John David Seng, OD's NPI number?
John David Seng, OD's National Provider Identifier (NPI) is 1487630943, issued on Dec 16, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John David Seng, OD located?
The NPPES record lists a practice address at 800 N Main St, Findlay, OH, 45840. Phone: (419) 424-2002. Providers update this record themselves, so call before visiting.
How can I verify John David Seng, OD's license?
NPPES lists Ohio license number 3635 T184, as entered by the provider. Search the Ohio board that licenses this profession; the NPPES record confirms identity only.
How much does John David Seng, OD prescribe under Medicare Part D?
In 2024, John David Seng, OD had 335 Medicare Part D claims for 88 beneficiaries; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.