DR. WILLIAM HENRY MERTZ PHD
NPI 1639242340
Psychologist - Clinical Child & Adolescent in Akron, OH

Q: What is William Mertz's NPI number?

The NPI number for William Mertz is 1639242340. It was assigned to this individual provider in the NPPES registry on November 17, 2006.

Q: What is William Mertz's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical Child & Adolescent, with taxonomy code 103TC2200X.

Q: When was this NPI record last updated?

The NPPES record for William Mertz was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since November 17, 2006

312 LOCUST ST, AKRON, OH 44302(330) 762-0591(330) 762-2242 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Dr. William Henry Mertz Phd NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. WILLIAM HENRY MERTZ PHD (NPI 1639242340) is an individual clinical child & adolescent provider in Akron, Ohio, licensed in Ohio (2380) and active in the NPI registry since November 2006.

NPPES Registry Identity

NPI1639242340

Entity TypeIndividualMale

Primary Taxonomy103TC2200X

Provider Legal NameDR. WILLIAM HENRY MERTZCredential: PHD

Location Address312 LOCUST STAkron, OH 44302-1801

Mailing Address87 N Canton RdAkron, OH 44305-3838 · (330) 794-4254 · Fax (330) 794-4262

Phone(330) 762-0591

Fax(330) 762-2242

Sole ProprietorNo

Enumeration DateNovember 17, 2006

Last NPPES UpdateSeptember 11, 2025

✔ NPI 1639242340 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyPsychologist · Clinical Child & AdolescentBehavioral Health & Social Service Providers

Taxonomy Code103TC2200X

License✔ Licensed in OH · 2380

Definition

A psychologist who develops and applies scientific knowledge to the delivery of psychological services to infants, toddlers, children and adolescents within their social context. Of particular importance to the specialty of clinical child psychology is an understanding of the basic psychological needs of children and adolescents, and how the family and other social contexts influence the socio-emotional adjustment, cognitive development, behavioral adaptation and health status of children and adolescents.

Also ListedPsychologistTaxonomy 103T00000X · License 2380 (OH)

Also ListedPsychologist · ClinicalTaxonomy 103TC0700X · License 2380 (OH)

312 LOCUST ST, Akron, OH 44302

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include CareSource.Insurance ›

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MR. BRIAN CHRISTOPHER PERUSEK BSW, LSW

Social Worker

312 LOCUST ST
AKRON, OH 44302

Summit County (330) 762-0591

REGINA MARIE MATYI BA PSYCHOLOGY

Case Manager/Care Coordinator

312 LOCUST ST
AKRON, OH 44302

Summit County (330) 762-0591

CAROL ANN DOWNS LISW

Social Worker (Clinical)

312 LOCUST ST
AKRON, OH 44302

Summit County (330) 762-0591

MRS. JENNIFER LYNN KNOBLOCH C.T

Counselor

312 LOCUST ST
AKRON, OH 44302

Summit County (330) 762-0591

MS. LISA J. ZINN

Social Worker (Clinical)

312 LOCUST ST
AKRON, OH 44302

Summit County (330) 762-0591

NIKKI TREVENE WOODLEY BA PSYCHOLOGY

Case Manager/Care Coordinator

312 LOCUST ST
AKRON, OH 44302

Summit County (330) 762-0591

LUISA MARIELLA ITURRIAGA MSED

Case Manager/Care Coordinator

312 LOCUST ST
AKRON, OH 44302

Summit County (330) 762-0591

MS. ANGELA RAYE SIPOS M.A. ED., PC

Counselor (Mental Health)

312 LOCUST ST
AKRON, OH 44302

Summit County (330) 762-0591

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Mertz's NPI number?

The NPI number for William Mertz is 1639242340. It was assigned to this individual provider in the NPPES registry on November 17, 2006.

Where is William Mertz located?

William Mertz practices at 312 Locust St, Akron, OH 44302. The listed phone number is (330) 762-0591.

What is William Mertz's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical Child & Adolescent, with taxonomy code 103TC2200X.

What insurance does William Mertz accept?

Health plans from CareSource list William Mertz as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for William Mertz was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.