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Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

JENNIFER DIEHL MC, LMHCA, NCC
NPI 1366354854
Counselor - Mental Health in Seattle, WA

Active since September 19, 2026
4715 42ND AVE SW APT 320, SEATTLE, WA 98116(253) 881-9854(235) 409-2622 Get Directions Write a Review

NPPES record added: October 7, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 7, 2026, Sep 19, 2026 (2 updates tracked since 2026).

About Jennifer Diehl Mc, Lmhca, Ncc NPPES

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

JENNIFER DIEHL MC, LMHCA, NCC (NPI 1366354854) is an individual mental health provider in Seattle, Washington, licensed in Washington (MHCA.MC.70048643) and active in the NPI registry since September 2026.

NPPES Registry Identity

NPI1366354854
Entity TypeIndividualFemale
Primary Taxonomy101YM0800X
Provider Legal NameJENNIFER DIEHLCredential: MC, LMHCA, NCC
Location Address4715 42ND AVE SW APT 320Seattle, WA 98116-4620
Mailing Address7059 Prism St SeLacey, WA 98513-5160 · (360) 861-3144
Phone(253) 881-9854
Fax(235) 409-2622
Sole ProprietorYes
Enumeration DateSeptember 19, 2026
Last NPPES UpdateOctober 7, 20262 updates tracked since enumeration
NPPES CertifiedOctober 7, 2026
✔ NPI 1366354854 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers
Taxonomy Code101YM0800X
License✔ Licensed in WA · MHCA.MC.70048643
4715 42ND AVE SW APT 320, Seattle, WA 98116
Open in Google Maps ↗

Other Providers at the Same Location NPPES 6

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

KAMEYCE JAVELL RIVERS-LEADER
Social Worker
4715 42ND AVE SW APT 320
SEATTLE, WA 98116
King County (253) 881-9854
THE DANIEL CLINIC, LLC
Counselor
4715 42ND AVE SW APT 320
SEATTLE, WA 98116
King County (253) 881-9854
JARRED LATHROP-WEBER LMFTA
Marriage & Family Therapist
4715 42ND AVE SW APT 320
SEATTLE, WA 98116
King County (253) 906-8738
CRYSTAL MATHIESON
Social Worker
4715 42ND AVE SW APT 320
SEATTLE, WA 98116
King County (253) 881-9854
KEVIN STUART FOSTER
Counselor
4715 42ND AVE SW APT 320
SEATTLE, WA 98116
King County (352) 723-7539
SHERI LOVE EARNSHAW LMHC
Counselor (Mental Health)
4715 42ND AVE SW APT 320
SEATTLE, WA 98116
King County (253) 881-9854

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 Jennifer Diehl's NPI number?

The NPI number for Jennifer Diehl is 1366354854. It was assigned to this individual provider in the NPPES registry on September 19, 2026.

Where is Jennifer Diehl located?

Jennifer Diehl practices at 4715 42nd Ave SW Apt 320, Seattle, WA 98116. The listed phone number is (253) 881-9854.

What is Jennifer Diehl's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

When was this NPI record last updated?

The NPPES record for Jennifer Diehl was last updated on October 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 days 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.