NPPES file of Aug 9, 2026

John Louis Mayo, D.D.S.

General Practice Dentistry · Youngstown, OH

John Louis Mayo, D.D.S. is a general practice dentistry with a practice address in Youngstown, Ohio, and NPI 1609969617, issued on Oct 2, 2006. Check the license (Ohio 15478, 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, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1609969617
Name
John Louis Mayo
Credential
D.D.S.
Primary taxonomy
General Practice Dentistry 1223G0001X
License number
15478 OH
Self-reported in NPPES; status is on the state search
Practice location
750 Boardman Poland RD, Youngstown, OH 44512
Phone
(330) 758-7501
Enumerated
Oct 2, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(330) 758-0890
Medicaid ID
0398289 OH
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 Louis Mayo 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 15478
    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.

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John Louis Mayo among 3,986 general practice dentistry records in Ohio

John Louis Mayo, D.D.S. is one of 3,986 general practice dentistry records with a practice address in Ohio. 63% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 4% of them.

  • NPI issued2006 · 4% of these records are older, 61% newer
  • In a Medicare fileNo · 63% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2007 · 74% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223G0001X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

48 general practice dentistry records list a practice address in Youngstown

They are 48 of the 4,790 NPPES records with a practice address in Youngstown, and 3,986 general practice dentistry records in Ohio. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 general practice dentistry records with the nearest ZIP codes

  1. Kingsley Baldwin IIIBoardman, OH 445121205908183
  2. Albert Dechellis, D.D.S.Boardman, OH 445121487770855
  3. Robert Durick, D.D.S.Youngstown, OH 445121659344299
  4. James Gentile, D.D.S.Boardman, OH 445121225001241
  5. Frank Guerrier, DDSYoungstown, OH 445121437100708
  6. Lawrence Liguore, DDSBoardman, OH 445121477597607
  7. Richard Lucarell, DDSYoungstown, OH 445121770536393
  8. Joseph Mika, DDS,LLCBoardman, OH 445121982685855

Common questions

What is John Louis Mayo, D.D.S.'s NPI number?

John Louis Mayo, D.D.S.'s National Provider Identifier (NPI) is 1609969617, issued on Oct 2, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John Louis Mayo, D.D.S. located?

The NPPES record lists a practice address at 750 Boardman Poland RD, Youngstown, OH, 44512. Phone: (330) 758-7501. Providers update this record themselves, so call before visiting.

How can I verify John Louis Mayo, D.D.S.'s license?

NPPES lists Ohio license number 15478, 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), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.