Diane Lynn Tonkyn, A.T.R. AND M.F.T.

Primary specialty

Marriage & Family TherapistTaxonomy code 106H00000X

License

00040 Issued in IA

Practice address

123 N Linn St
Suite 2D
Iowa City, IA 52245-2143

Phone

(319) 337-9461

NPI assigned

Feb 2, 2007

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

State licenses

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

{
    "created_epoch": "1170374400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1749772800000",
    "number": "1083752828",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "711 4TH AVE",
            "city": "IOWA CITY",
            "state": "IA",
            "postal_code": "522454524",
            "telephone_number": "319-339-0575"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "123 N LINN ST",
            "address_2": "SUITE 2D",
            "city": "IOWA CITY",
            "state": "IA",
            "postal_code": "522452143",
            "telephone_number": "319-337-9461"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "TONKYN",
        "first_name": "DIANE",
        "middle_name": "LYNN",
        "name_prefix": "Ms.",
        "credential": "A.T.R. AND M.F.T.",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2007-02-02",
        "last_updated": "2025-06-13",
        "certification_date": "2025-06-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "106H00000X",
            "taxonomy_group": "",
            "desc": "Marriage & Family Therapist",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "106H00000X",
            "taxonomy_group": "",
            "desc": "Marriage & Family Therapist",
            "state": "IA",
            "license": "00040",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• James Dalin Tollestrup, BDS MDS
• Michael H Tomasson, MD
• Lauren Ann Tomlinson
• Guiling Tong
• Michael Tongi
• Marc Toofan, M.D.
• Khamida Toorsunov
• Lynda Kay Topp, L.I.S.W.
• Ryan Philip Torelli
• Kayli Torok, DPT

• Marriage & Family Therapist in Iowa City, IA
• Providers in Iowa City, IA by specialty
• Marriage & Family Therapist in Iowa

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 13, 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.