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MS. DIANE LYNN TONKYN A.T.R. AND M.F.T.
NPI 1083752828
Marriage & Family Therapist in Iowa City, IA

Active since February 02, 2007
123 N LINN ST, SUITE 2D, IOWA CITY, IA 52245(319) 337-9461 Get Directions Write a Review

NPPES record last updated: June 13, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Ms. Diane Lynn Tonkyn A.t.r. And M.f.t. NPPES

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

MS. DIANE LYNN TONKYN A.T.R. AND M.F.T. (NPI 1083752828) is an individual marriage & family therapist in Iowa City, Iowa, licensed in Iowa (00040) and active in the NPI registry since February 2007.

NPPES Registry Identity

NPI1083752828
Entity TypeIndividualFemale
Primary Taxonomy106H00000X
Provider Legal NameMS. DIANE LYNN TONKYNCredential: A.T.R. AND M.F.T.
Location Address123 N LINN ST, SUITE 2DIowa City, IA 52245-2143
Mailing Address711 4th AveIowa City, IA 52245-4524 · (319) 339-0575
Phone(319) 337-9461
Sole ProprietorYes
Enumeration DateFebruary 2, 2007
Last NPPES UpdateJune 13, 2025
NPPES CertifiedJune 13, 2025
✔ NPI 1083752828 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyMarriage & Family TherapistBehavioral Health & Social Service Providers
Taxonomy Code106H00000X
License✔ Licensed in IA · 00040
Definition
A marriage and family therapist is a person with a master's degree in marriage and family therapy, or a master's or doctoral degree in a related mental health field with substantially equivalent coursework in marriage and family therapy, who receives supervised clinical experience, or a person who meets the state requirements to practice as a marriage and family therapist. A marriage and family therapist treats mental and emotional disorders within the context of marriage and family systems. A marriage and family therapist provides mental health and counseling services to individuals, couples, families, and groups.
123 N LINN ST, Iowa City, IA 52245
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Other Providers at the Same Location NPPES 10

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

PATRICIA MOLLIE HAYEK L.I.S.W.
Social Worker (Clinical)
123 N LINN ST, SUITE 2A
IOWA CITY, IA 52245
Johnson County (319) 337-3357
DR. VIRGINIA LEE STAMLER PH.D.
Psychologist (Clinical)
123 N LINN ST, SUITE 2C
IOWA CITY, IA 52245
Johnson County (319) 354-7394
DR. M KAY COLANGELO PH.D.
Counselor (Professional)
123 N LINN ST, SUITE 2-D
IOWA CITY, IA 52245
Johnson County (319) 337-9461
MRS. AMANDA AUSTA GOODRICH M.A., LMHC
Counselor (Mental Health)
123 N LINN ST, SUITE 2A
IOWA CITY, IA 52245
Johnson County (319) 337-3357
INTEGRATED COMMUNITY THERAPISTS, LLC
Counselor (Mental Health)
123 N LINN ST, SUITE 2A
IOWA CITY, IA 52245
Johnson County (319) 337-3357
DR. CHERYL HETHERINGTON PHD.
Psychologist
123 N LINN ST, SUITE 2D
IOWA CITY, IA 52245
Johnson County (319) 337-9461
GISOLFI, HAYEK, RUYLE & SCHUT, L.L.P.
Social Worker (Clinical)
123 N LINN ST, SUITE 2A
IOWA CITY, IA 52245
Johnson County (319) 337-3357
MARTHA J. SCHUT L.I.S.W.
Social Worker (Clinical)
123 N LINN ST, SUITE 2A
IOWA CITY, IA 52245
Johnson County (319) 337-3357

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 Diane Tonkyn's NPI number?

The NPI number for Diane Tonkyn is 1083752828. It was assigned to this individual provider in the NPPES registry on February 2, 2007.

Where is Diane Tonkyn located?

Diane Tonkyn practices at 123 N Linn St Suite 2D, Iowa City, IA 52245. The listed phone number is (319) 337-9461.

What is Diane Tonkyn's specialty?

The primary specialty registered for this NPI is Marriage & Family Therapist with taxonomy code 106H00000X.

When was this NPI record last updated?

The NPPES record for Diane Tonkyn was last updated on June 13, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.