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WILLIAM CORNWELL III
NPI 1164730842
Counselor - Mental Health in Seattle, WA

Active since September 16, 2010
1812 E MADISON ST, SEATTLE, WA 98122(425) 610-9403 Get Directions Write a Review

NPPES record last updated: September 16, 2010. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About William Cornwell Iii NPPES

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

WILLIAM CORNWELL III (NPI 1164730842) is an individual mental health provider in Seattle, Washington and active in the NPI registry since September 2010.

NPPES Registry Identity

NPI1164730842
Entity TypeIndividualMale
Primary Taxonomy101YM0800X
Provider Legal NameWILLIAM CORNWELL III
Location Address1812 E MADISON STSeattle, WA 98122-2843
Mailing Address433 31st Ave E, Upper LevelSeattle, WA 98112-4826 · (334) 294-9245
Phone(425) 610-9403
Sole ProprietorYes
Enumeration DateSeptember 16, 2010
✔ NPI 1164730842 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers
Taxonomy Code101YM0800X
1812 E MADISON ST, Seattle, WA 98122
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Other Providers at the Same Location NPPES 12

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

ELLIOT IRENE SWEET LMFT
Marriage & Family Therapist
1812 E MADISON ST, STE 30
SEATTLE, WA 98122
King County (206) 745-2621
MR. RALPH A. FRAGALE MA, LMHC
Counselor (Mental Health)
1812 E MADISON ST, SUITE 101
SEATTLE, WA 98122
King County (206) 683-0707
LYNN ELWOOD LMHC
Counselor (Mental Health)
1812 E MADISON ST, SUITE 203
SEATTLE, WA 98122
King County (206) 856-5896
MS. ELISEHA ENNEE KELLY LMP
Specialist
1812 E MADISON ST
SEATTLE, WA 98122
King County (206) 850-6428
DEBORAH BETH COHEN M.A.
Counselor (Mental Health)
1812 E MADISON ST, #106
SEATTLE, WA 98122
King County (206) 322-5070
RALPH A. FRAGALE MA LMHC
Counselor (Mental Health)
1812 E MADISON ST, SUITE 106
SEATTLE, WA 98122
King County (206) 683-0707
MS. KIM T BUEHLMAN LMHC
Counselor (Mental Health)
1812 E MADISON ST, SUITE #206
SEATTLE, WA 98122
King County (206) 325-9551
ELANA ROSENCRANTZ PSYD
Psychologist
1812 E MADISON ST, SUITE 102
SEATTLE, WA 98122
King County (206) 313-6795

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 William Cornwell's NPI number?

The NPI number for William Cornwell is 1164730842. It was assigned to this individual provider in the NPPES registry on September 16, 2010.

Where is William Cornwell located?

William Cornwell practices at 1812 E Madison St, Seattle, WA 98122. The listed phone number is (425) 610-9403.

What is William Cornwell'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 William Cornwell was last updated on September 16, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 years 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.