Individual provider Active NPI

Tatia T Williams, PSYD

  • Psychologist
  • Powell, OH
National Provider Identifier
1639616196
Registry record updated Aug 5, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
PsychologistTaxonomy code 103T00000X
License
P.7538 Issued in OH
Practice address
7171 Sawmill Pkwy Ste 2B
Powell, OH 43065-7828
Phone
(614) 293-4969
Fax
(614) 293-6111
NPI assigned
Jan 23, 2017
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 5, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Professional Counselor 101YP2500X E.1100254-SUPV OH
Psychologist 103T00000X P.7538 OH Primary

Addresses

Primary practice location

7171 Sawmill Pkwy Ste 2B
Powell, OH 43065-7828

Mailing address

700 Ackerman Rd Ste 2120
Columbus, OH 43202-1559
Phone (614) 293-4969

Other practice location 1

68 W Church St Ste 318
Newark, OH 43055-5050
Phone (740) 417-9265

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in OH
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: No
  • Power mobility devices: No
  • Hospice: No
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20170315002082 OH Practitioner - Clinical Psychologist 6305121203 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Clinical Psychologist
Education
Other, 2016
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Mid-Ohio Psychological Services, IncGroup PAC ID 3577585819, 12 clinicians

Practice addresses (Care Compare)

106 Starret St
Suite 100
Lancaster, OH 43130-3993
Phone (740) 687-0042

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
E.1100254-SUPVOHMDProfessional Counselor

Practice roles

OrganizationSpecialtyStatusNew patients
Mid-Ohio Psychological Services Inc Psychologist CurrentSince Feb 15, 2017 Accepting new patients
Mid-Ohio Psychological Services Inc Psychologist CurrentSince Oct 5, 2021 Accepting new patients

Locations

106 Stover Dr
#A
Delaware, OH 43015

624 E Main St
Lancaster, OH 43130
Phone (740) 475-0488

106 Starret St
Ste 100
Lancaster, OH 43130
Phone (740) 687-0042

Organizations & group practices 2

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.

NPI Registry JSON

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

{
    "created_epoch": "1485129600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1785888000000",
    "number": "1639616196",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "700 ACKERMAN RD STE 2120",
            "city": "COLUMBUS",
            "state": "OH",
            "postal_code": "432021559",
            "telephone_number": "614-293-4969",
            "fax_number": "614-293-6111"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "7171 SAWMILL PKWY STE 2B",
            "city": "POWELL",
            "state": "OH",
            "postal_code": "430657828",
            "telephone_number": "614-293-4969",
            "fax_number": "614-293-6111"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "68 W Church St Ste 318",
            "address_purpose": "LOCATION",
            "city": "Newark",
            "state": "OH",
            "postal_code": "430555050",
            "country_code": "US",
            "telephone_number": "740-417-9265",
            "fax_number": "740-417-9268",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "WILLIAMS",
        "first_name": "TATIA",
        "middle_name": "T",
        "name_prefix": "Dr.",
        "credential": "PSYD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2017-01-23",
        "last_updated": "2026-08-05",
        "certification_date": "2026-08-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "101YP2500X",
            "taxonomy_group": "",
            "desc": "Counselor, Professional",
            "state": "OH",
            "license": "E.1100254-SUPV",
            "primary": false
        },
        {
            "code": "103T00000X",
            "taxonomy_group": "",
            "desc": "Psychologist",
            "state": "OH",
            "license": "P.7538",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Powell, OH

Sources for this page

Verify at the official NPI Registry.