Marta Sloan, LMHC
Mental Health Counselor · Seattle, WA
Marta Sloan, LMHC is a mental health counselor with a practice address in Seattle, Washington, and NPI 1215570593, issued on Oct 19, 2019. Check the license (Washington LH60252773, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Marta Sloan
- Credential
- LMHC
- Primary taxonomy
- Mental Health Counselor 101YM0800X
- License number
- LH60252773 WA
Self-reported in NPPES; status is on the state search - Practice location
- 1818 E Mercer St Ste 101, Seattle, WA 98112
- Phone
- (206) 658-5340
- Enumerated
- Oct 19, 2019
- Record last updated
- Oct 19, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20260303003043); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest mental health counselor records → All 18,094 in Washington → Look up another NPI →
Also registered at 1818 E Mercer St Ste 101
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Todd KlempnerClinical Social Worker1780212134
- Arianna Randolph, LICSWClinical Social Worker1083239610
- Sarah Rincon, LMHCAMental Health Counselor1083249163
- Jennifer Wozniak, MAMental Health Counselor1245546944
Verify Marta Sloan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license LH60252773Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Therapeutic Health ServicesSeattle, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marta Sloan among 18,094 mental health counselor records in Washington
Marta Sloan, 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. Its NPI, issued in 2019, is newer than 59% of them.
- NPI issued2019 · 59% of these records are older, 35% newer
- In a Medicare fileYes · 4% of these records are
- In the CMS Doctors and Clinicians fileYes · 7% of these records are
- Graduated2007 · median 2014 among the 1,240 with a school on file
- Record last updated2019 · 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.
All 18,094 in Washington → Every provider in Seattle → Mental Health Counselor nationwide →
The 8 mental health counselor records with the nearest ZIP codes
- Aja Cruz, MSW, AAC, LICSWSeattle, WA 981121972650968
- Norman Duff, NA, AACSeattle, WA 981121225195167
- Mary Dunbar, LMHC, CMHSSeattle, WA 981121417010455
- Steven Gary, M.A.Seattle, WA 981121467473678
- Lilith Halpe, M.A., LMHC, ATR-BCSeattle, WA 981121184776585
- Carol Heard, MASeattle, WA 981121073583092
- Julie HendricksonSeattle, WA 981121154423150
- Jeanne Jones, PHD, LMHCSeattle, WA 981121811058712
Common questions
What is Marta Sloan, LMHC's NPI number?
Marta Sloan, LMHC's National Provider Identifier (NPI) is 1215570593, issued on Oct 19, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Marta Sloan, LMHC located?
The NPPES record lists a practice address at 1818 E Mercer St Ste 101, Seattle, WA, 98112. Phone: (206) 658-5340. Providers update this record themselves, so call before visiting.
How can I verify Marta Sloan, LMHC's license?
NPPES lists Washington license number LH60252773, 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. Medicare files from data.cms.gov. 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.