NPPES file of Aug 9, 2026

Ryan K. May, PHD

Clinical Psychologist · Marietta, OH

Ryan K. May, PHD is a clinical psychologist with a practice address in Marietta, Ohio, and NPI 1134126139, issued on Jul 5, 2005. Check the license (Ohio 6164, as entered in NPPES) with the Ohio board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1134126139
Name
Ryan K. May
Credential
PHD
Primary taxonomy
Clinical Psychologist 103TC0700X
License numbers
6164 OH
910 WV
Self-reported in NPPES; status is on the state search
Practice location
215 5TH St, Marietta, OH 45750
Phone
(740) 376-4767
Enumerated
Jul 5, 2005
Record last updated
Aug 18, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20080215000515); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest clinical psychologist records → All 1,581 in Ohio → Look up another NPI →

Also registered at 215 5TH St

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

  1. Braedon AyersPhysician Assistant1770412132
  2. Jeffery Bailes, PA-CPhysician Assistant1720155914
  3. Anna BonitatibusPhysician Assistant1851182901
  4. Vladimir BrizuelaPhysician Assistant1932065554
  5. Madison CecilPhysician Assistant1609705722
  6. Leayan ChehabPhysician Assistant1861295479

Verify Ryan K. May 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 6164    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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One hospital affiliation

  1. Marietta Memorial HospitalMarietta, OH · Acute Care Hospitals3 of 5 stars

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Ryan K. May among 1,581 clinical psychologist records in Ohio

Ryan K. May, PHD is one of 1,581 clinical psychologist records with a practice address in Ohio. 19% 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, 95% newer
  • In a Medicare fileYes · 19% of these records are
  • In the CMS Doctors and Clinicians fileYes · 28% of these records are
  • Graduated2002 · median 2002 among the 445 with a school on file
  • Record last updated2020 · 71% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103TC0700X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Clinical Psychologist providers in Ohio

There are 1,581 clinical psychologist records in Ohio.

All 1,581 in Ohio → Every provider in Marietta → Clinical Psychologist nationwide →

The 8 clinical psychologist records with the nearest ZIP codes

  1. Kevin Schmucker, PH.D.Marietta, OH 457501851441703
  2. Amber Tebay, PHDMarietta, OH 457501417588229
  3. Megan Austin, PH.D.Pomeroy, OH 457691033505847
  4. Chris Clatterbuck, PHDBelpre, OH 457141265498695
  5. John Crum, PHDBelpre, OH 457141598873804
  6. Nicholas AllanAthens, OH 457011821756461
  7. Darcey Allan, PHDAthens, OH 457011306476015
  8. Barry Brady, PSY.D.Athens, OH 457011275186991

Common questions

What is Ryan K. May, PHD's NPI number?

Ryan K. May, PHD's National Provider Identifier (NPI) is 1134126139, issued on Jul 5, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Ryan K. May, PHD located?

The NPPES record lists a practice address at 215 5TH St, Marietta, OH, 45750. Phone: (740) 376-4767. Providers update this record themselves, so call before visiting.

How can I verify Ryan K. May, PHD's license?

NPPES lists Ohio license number 6164, 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. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.