William Henry Mertz, PHD

Primary specialty

Clinical Child & Adolescent PsychologistTaxonomy code 103TC2200X

License

2380 Issued in OH

Practice address

312 Locust St
Akron, OH 44302-1801

Phone

(330) 762-0591

Fax

(330) 762-2242

NPI assigned

Nov 17, 2006

Sex

Male

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 3

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

Credentials

Doctor of Philosophy

State licenses

Practice roles

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Child Guidance & Family Solutions

  • Addiction (Substance Use Disorder) Counselor
  • Akron, OH
  • NPI 1821127952
  NPD (past)
• Child Guidance & Family Solutions

  • Adolescent and Children Mental Health Clinic/Center
  • Akron, OH
  • NPI 1922105147
  NPD (past)

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1163721600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1639242340",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "87 N CANTON RD",
            "city": "AKRON",
            "state": "OH",
            "postal_code": "443053838",
            "telephone_number": "330-794-4254",
            "fax_number": "330-794-4262"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "312 LOCUST ST",
            "city": "AKRON",
            "state": "OH",
            "postal_code": "443021801",
            "telephone_number": "330-762-0591",
            "fax_number": "330-762-2242"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MERTZ",
        "first_name": "WILLIAM",
        "middle_name": "HENRY",
        "name_prefix": "Dr.",
        "credential": "PHD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-11-17",
        "last_updated": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "103T00000X",
            "taxonomy_group": "",
            "desc": "Psychologist",
            "state": "OH",
            "license": "2380",
            "primary": false
        },
        {
            "code": "103TC0700X",
            "taxonomy_group": "",
            "desc": "Psychologist, Clinical",
            "state": "OH",
            "license": "2380",
            "primary": false
        },
        {
            "code": "103TC2200X",
            "taxonomy_group": "",
            "desc": "Psychologist, Clinical Child & Adolescent",
            "state": "OH",
            "license": "2380",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Merriman Valley Home Health Services
• Lakita Merriner
• Lisa Cecilia Merritt
• Requetta Merritt, BSN,RN
• Shelby Ann Mertz, DO
• Kylene Mesaros, APRN, ACCNS-AG
• Sarah Anne Messam, BCBA
• Jennifer A. Messenger, C.N.P.
• Deanna Messer
• Sallie Messerly, BSN, RN-BC

• Clinical Child & Adolescent Psychologist in Akron, OH
• Providers in Akron, OH by specialty
• Clinical Child & Adolescent Psychologist in Ohio

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.