Lesli Susan Corthell, M.A., LMHC
Mental Health Counselor · Seattle, WA
Lesli Susan Corthell, M.A., LMHC is a mental health counselor with a practice address in Seattle, Washington, and NPI 1235322892, issued on Aug 27, 2007. Check the license (Washington LH00008740, as entered in NPPES) with the Washington board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Lesli Susan Corthell
- Credential
- M.A., LMHC
- Primary taxonomy
- Mental Health Counselor 101YM0800X
- License number
- LH00008740 WA
Self-reported in NPPES; status is on the state search - Practice location
- 753 N 35TH St, Seattle, WA 98103
- Phone
- (206) 547-5767
- Enumerated
- Aug 27, 2007
- Record last updated
- Aug 27, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest mental health counselor records → All 18,094 in Washington → Look up another NPI →
Also registered at 753 N 35TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Lesli Susan Corthell in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license LH00008740Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Lesli Susan Corthell among 18,094 mental health counselor records in Washington
Lesli Susan Corthell, M.A., LMHC is one of 18,094 mental health counselor records with a practice address in Washington. 4% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2007, is newer than 6% of them.
- NPI issued2007 · 6% of these records are older, 85% newer
- In a Medicare fileNo · 4% of these records are
- In the CMS Doctors and Clinicians fileNo · 7% of these records are
- Record last updated2007 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 101YM0800X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
3,142 mental health counselor records list a practice address in Seattle
They are 3,142 of the 41,956 NPPES records with a practice address in Seattle, and 18,094 mental health counselor records in Washington. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 18,094 in Washington → Every provider in Seattle → Mental Health Counselor nationwide →
The 8 mental health counselor records with the nearest ZIP codes
- Barbara Alexander, MASeattle, WA 981031194864231
- Nancy BroadersSeattle, WA 981031164571113
- Robert Day, LMHCSeattle, WA 981031326191867
- Michael Foster, M.ED.Seattle, WA 981031306849237
- Jacquelyn Gilroy, MA, LMHCSeattle, WA 981031073667515
- William Grimsman, MASeattle, WA 981031467458554
- Joe Guppy, M.A., LMHCSeattle, WA 981031700938156
- Patrick Hart, PSY.D.Seattle, WA 981031588734990
Common questions
What is Lesli Susan Corthell, M.A., LMHC's NPI number?
Lesli Susan Corthell, M.A., LMHC's National Provider Identifier (NPI) is 1235322892, issued on Aug 27, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Lesli Susan Corthell, M.A., LMHC located?
The NPPES record lists a practice address at 753 N 35TH St, Seattle, WA, 98103. Phone: (206) 547-5767. Providers update this record themselves, so call before visiting.
How can I verify Lesli Susan Corthell, M.A., LMHC's license?
NPPES lists Washington license number LH00008740, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.