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MARTA SLOAN LMHC
NPI 1215570593
Counselor - Mental Health in Seattle, WA

Active since October 19, 2019PECOS EnrolledAccepts Medicare Assignment
1818 E MERCER ST STE 101, SEATTLE, WA 98112(206) 658-5340 Get Directions Write a Review

NPPES record last updated: October 19, 2019. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Marta Sloan Lmhc NPPES

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

MARTA SLOAN LMHC (NPI 1215570593) is an individual mental health provider in Seattle, Washington, licensed in Washington (LH60252773) and active in the NPI registry since October 2019. She is enrolled in Medicare PECOS and is a graduate of Other (2007).

NPPES Registry Identity

NPI1215570593
Entity TypeIndividualFemale
Primary Taxonomy101YM0800X
Provider Legal NameMARTA SLOANCredential: LMHC
Location Address1818 E MERCER ST STE 101Seattle, WA 98112-4689
Mailing Address1818 E Mercer St Ste 101Seattle, WA 98112-4689 · (206) 658-5340
Phone(206) 658-5340
Sole ProprietorYes
Medical School CMSOtherGraduated 2007
Enumeration DateOctober 19, 2019
✔ NPI 1215570593 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 · LH60252773
1818 E MERCER ST STE 101, Seattle, WA 98112
Open in Google Maps ↗

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Providence Health Plan.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Marta Sloan Lmhc is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7416439161
PECOS Enrollment IDI20260303003043
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Marta Sloan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Therapeutic Health Services
1.1 mi
Methadone
1305 SENECA ST
Seattle, WA 98101
  • Reassigned Medicare billing, Washington enrollment
  • 26 clinicians in this Medicare group
NPI 1053400077 (206) 323-0930

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 5

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

ARIANNA RANDOLPH LICSW
Social Worker (Clinical)
1818 E MERCER ST STE 101
SEATTLE, WA 98112
King County (425) 954-5543
SARAH MARIE RINCON LMHCA
Counselor (Mental Health)
1818 E MERCER ST STE 101
SEATTLE, WA 98112
King County (206) 681-6270
JENNIFER WOZNIAK MA
Counselor (Mental Health)
1818 E MERCER ST STE 101
SEATTLE, WA 98112
King County (609) 412-0544
MS. YOO JUNG CHONG MA ED, LMHCA
Counselor (Mental Health)
1818 E MERCER ST STE 101
SEATTLE, WA 98112
King County (206) 681-6270
TODD KLEMPNER
Social Worker (Clinical)
1818 E MERCER ST STE 101
SEATTLE, WA 98112
King County (206) 349-0663

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 Marta Sloan's NPI number?

The NPI number for Marta Sloan is 1215570593. It was assigned to this individual provider in the NPPES registry on October 19, 2019.

Where is Marta Sloan located?

Marta Sloan practices at 1818 E Mercer St Ste 101, Seattle, WA 98112. The listed phone number is (206) 658-5340.

What is Marta Sloan's specialty?

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

Is Marta Sloan enrolled in Medicare?

Yes. Marta Sloan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Marta Sloan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Marta Sloan reassigns Medicare benefits to Therapeutic Health Services (Seattle, WA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Marta Sloan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Marta Sloan accept?

Health plans from Providence Health Plan list Marta Sloan as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Marta Sloan was last updated on October 19, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.