Registry data as of Aug 27, 2026

John Grone, O.D.

Optometrist · Delphos, OH

John Grone, O.D. is an optometrist with a practice address in Delphos, Ohio, and NPI 1750421822, issued on Feb 7, 2007. Check the license (Ohio 3030OH, as entered in NPPES) with the Ohio board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, loaded Aug 27, 2026 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1750421822
Name
John Grone
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License number
3030OH OH
Self-reported in NPPES; status is on the state search
Practice location
134 East Third St, Delphos, OH 45833
Phone
(419) 692-0010
Enumerated
Feb 7, 2007
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify John Grone in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Ohio board licenses this profession
    Search for license 3030OH
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Find the Ohio license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

2 optometrist records list a Delphos practice address

They are 2 of the 116 NPPES records with a Delphos practice address, and 2,379 optometrist records in Ohio. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other optometrist records in Ohio

  1. Saif AbdulameerBlue Ash, OH1063368496
  2. Nicole Abrashoff, O.D.Chillicothe, OH1588772933
  3. Thomas Abruzzi, O.D.Warren, OH1588669790
  4. Laird Ackerson, O.D.Hilliard, OH1609880624
  5. Kaitlin Ackinclose, ODCincinnati, OH1669231262
  6. Cheryl Adams, O.D.Cincinnati, OH1356361570
  7. Stephany Aeling, ODChillicothe, OH1689508269
  8. Cindy Ahern, ODSpringfield, OH1710040704
  9. Betsy Ahlquist, O.D.Canfield, OH1578540092
  10. Jeffrey Ahrns, O.D.Sidney, OH1659334704

Common questions

What is John Grone, O.D.'s NPI number?

John Grone, O.D.'s National Provider Identifier (NPI) is 1750421822, issued on Feb 7, 2007. An NPI identifies a provider in billing; it is not a license.

Where is John Grone, O.D. located?

The NPPES record lists a practice address at 134 East Third St, Delphos, OH, 45833. Phone: (419) 692-0010. Providers update this record themselves, so call before visiting.

How can I verify John Grone, O.D.'s license?

NPPES lists Ohio license number 3030OH, as entered by the provider. Search the Ohio board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.