John Maszczak, O.D.
Optometrist · Columbus, OH
John Maszczak, O.D. is an optometrist with a practice address in Columbus, Ohio, and NPI 1659304947, issued on Jul 9, 2006. Check the license (Ohio 5562, as entered in NPPES) with the Ohio board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John Maszczak
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 5562 OH
Self-reported in NPPES; status is on the state search - Practice location
- 1421 Grandview Ave, Columbus, OH 43212
- Phone
- (614) 488-2020
- Enumerated
- Jul 9, 2006
- Entity
- Type 1 · individual
Also registered at 1421 Grandview Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Douglas Bloss, O.D.Optometrist1962538140
- Maryellen Luebbers, O.D.Optometrist1396799391
Verify John Maszczak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Ohio board licenses this profession
Search for license 5562Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
88% fewer Medicare Part D claims than the average optometrist in 2024
34 Medicare Part D claims for 18 beneficiaries, against an average of 279 among the 32,314 providers of this specialty who prescribed in Part D.
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.
One hospital or facility affiliation
- Ohio State UniversityColumbus, OH
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Optometrist providers in Ohio
There are 2,379 optometrist records in Ohio.
Other optometrist records in Ohio
- Saif AbdulameerBlue Ash, OH1063368496
- Nicole Abrashoff, O.D.Chillicothe, OH1588772933
- Thomas Abruzzi, O.D.Warren, OH1588669790
- Laird Ackerson, O.D.Hilliard, OH1609880624
- Kaitlin Ackinclose, ODCincinnati, OH1669231262
- Cheryl Adams, O.D.Cincinnati, OH1356361570
- Stephany Aeling, ODChillicothe, OH1689508269
- Cindy Ahern, ODSpringfield, OH1710040704
- Betsy Ahlquist, O.D.Canfield, OH1578540092
- Jeffrey Ahrns, O.D.Sidney, OH1659334704
Common questions
What is John Maszczak, O.D.'s NPI number?
John Maszczak, O.D.'s National Provider Identifier (NPI) is 1659304947, issued on Jul 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Maszczak, O.D. located?
The NPPES record lists a practice address at 1421 Grandview Ave, Columbus, OH, 43212. Phone: (614) 488-2020. Providers update this record themselves, so call before visiting.
How can I verify John Maszczak, O.D.'s license?
NPPES lists Ohio license number 5562, as entered by the provider. Search the Ohio board that licenses this profession; the NPPES record confirms identity only.
How much does John Maszczak, O.D. prescribe under Medicare Part D?
In 2024, John Maszczak, O.D. had 34 Medicare Part D claims for 18 beneficiaries; the average among optometrist prescribers was 279. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
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.