Registry data as of Aug 27, 2026

John Showalter, PHD

Clinical Psychologist · Columbus, OH

John Showalter, PHD is a clinical psychologist with a practice address in Columbus, Ohio, and NPI 1720077027, issued on Oct 19, 2005. Check the license 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
1720077027
Name
John Showalter
Credential
PHD
Primary taxonomy
Clinical Psychologist 103TC0700X
Practice location
1971 W 5TH Ave, Columbus, OH 43212
Phone
(614) 748-8628
Enumerated
Oct 19, 2005
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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Also registered at 1971 W 5TH Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Herbert Hausman, PHDClinical Psychologist1659360741
  2. Peggy Lewis, LISWSocial Worker1942336573
  3. John Reece, PSY DClinical Psychologist1972584928
  4. Jayne Speicher-Bocija, PHDClinical Psychologist1023317815
  5. Jennifer Stone, LISWClinical Social Worker1790083319
  6. Barb Tewart-Darwin, LISWSocial Worker1346282860

Verify John Showalter in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Ohio board licenses this professionCheck 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.

Clinical Psychologist providers in Ohio

There are 1,488 clinical psychologist records in Ohio. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 1,488 in Ohio → Every provider in Columbus →

Other clinical psychologist records in Ohio

  1. Laura Abood, PH.D.Cleveland, OH1326050972
  2. Kathy Acus-Souders, PSY.D.Fairborn, OH1174523070
  3. Alyssa Adams, PSY.D.Columbus, OH1659223881
  4. Robert Adams, PSY.D.Rocky River, OH1306124177
  5. Amanda Adams-Mock, PSY.D.Gallipolis, OH1205060829
  6. Meagan Adley, PSY.D.Cleveland, OH1134664865
  7. William Adrion, PSY.D.Columbus, OH1063564607
  8. Samina Ahmed Jauregui, PSYDCleveland, OH1104256916
  9. William Ajayi, PH.DGarfield Heights, OH1649672148
  10. T. Akamatsu, PH.DKent, OH1356554695

Common questions

What is John Showalter, PHD's NPI number?

John Showalter, PHD's National Provider Identifier (NPI) is 1720077027, issued on Oct 19, 2005. An NPI identifies a provider in billing; it is not a license.

Where is John Showalter, PHD located?

The NPPES record lists a practice address at 1971 W 5TH Ave, Columbus, OH, 43212. Phone: (614) 748-8628. Providers update this record themselves, so call before visiting.

How can I verify John Showalter, PHD's license?

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.

Compiled from official public sources by the editorial process.

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.