William Henry Mertz, PHD
Clinical Child & Adolescent Psychologist · Akron, OH
William Henry Mertz, PHD is a clinical child & adolescent psychologist with a practice address in Akron, Ohio, and NPI 1639242340, issued on Nov 17, 2006. Check the license (Ohio 2380, 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.
- Name
- William Henry Mertz
- Credential
- PHD
- Primary taxonomy
- Clinical Child & Adolescent Psychologist 103TC2200X
- License number
- 2380 OH
Self-reported in NPPES; status is on the state search - Practice location
- 312 Locust St, Akron, OH 44302
- Phone
- (330) 762-0591
- Enumerated
- Nov 17, 2006
- Record last updated
- Sep 11, 2025
- Fax
- (330) 762-2242
- Entity
- Type 1 · individual
8 nearest clinical child & adolescent psychologist records → All 416 in Ohio → Look up another NPI →
Also registered at 312 Locust St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify William Henry Mertz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Ohio board licenses this profession
Search for license 2380Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
William Henry Mertz among 416 clinical child & adolescent psychologist records in Ohio
William Henry Mertz, PHD is one of 416 clinical child & adolescent psychologist records with a practice address in Ohio. 6% 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 under 1% of them.
- NPI issued2006 · under 1% of these records are older, 88% newer
- In a Medicare fileNo · 6% of these records are
- In the CMS Doctors and Clinicians fileNo · 9% of these records are
- Record last updated2025 · 37% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103TC2200X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Clinical Child & Adolescent Psychologist providers in Ohio
There are 416 clinical child & adolescent psychologist records in Ohio. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 416 in Ohio → Every provider in Akron → Clinical Child & Adolescent Psychologist nationwide →
The 8 clinical child & adolescent psychologist records with the nearest ZIP codes
- Elizabeth Bard, PH.D.Akron, OH 443011447373931
- Allison Burke, PHDAkron, OH 443081760840367
- Georgette Constantinou, PH.D.Akron, OH 443081962435602
- Allison Griesmer, PHDAkron, OH 443081467000695
- Tanya Hartman, PHDAkron, OH 443081114120482
- Katrina Hermetet, PHD, NCSPAkron, OH 443081386005999
- Victoria Kellerman, PSY.D.Akron, OH 443081427134840
- Susan Leib, PH.D.Akron, OH 443081700973799
Common questions
What is William Henry Mertz, PHD's NPI number?
William Henry Mertz, PHD's National Provider Identifier (NPI) is 1639242340, issued on Nov 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Henry Mertz, PHD located?
The NPPES record lists a practice address at 312 Locust St, Akron, OH, 44302. Phone: (330) 762-0591. Providers update this record themselves, so call before visiting.
How can I verify William Henry Mertz, PHD's license?
NPPES lists Ohio license number 2380, 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.