MARIAM OPINCAR MERRIN MA, LPCC, LMHC, SUDP
NPI 1295137412
Counselor - Mental Health in Edmonds, WA

Active since September 18, 2014PECOS EnrolledAccepts Medicare Assignment
144 RAILROAD AVE, EDMONDS, WA 98020(206) 486-0242 Get Directions Write a Review

NPPES record last updated: February 9, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Mariam Opincar Merrin Ma, Lpcc, Lmhc, Sudp NPPES

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

MARIAM OPINCAR MERRIN MA, LPCC, LMHC, SUDP (NPI 1295137412) is an individual mental health provider in Edmonds, Washington, licensed in Washington (LH 60675467) and active in the NPI registry since September 2014. She is enrolled in Medicare PECOS and is a graduate of Other (2001).

NPPES Registry Identity

NPI1295137412
Entity TypeIndividualFemale
Primary Taxonomy101YM0800X
Provider Legal NameMARIAM OPINCAR MERRINCredential: MA, LPCC, LMHC, SUDP
Location Address144 RAILROAD AVEEdmonds, WA 98020-7207
Mailing Address5500 Harbour Pointe Blvd Apt E203Mukilteo, WA 98275-5176 · (206) 486-0242
Sole ProprietorYes
Medical School CMSOtherGraduated 2001
Enumeration DateSeptember 18, 2014
Last NPPES UpdateFebruary 9, 2026
NPPES CertifiedFebruary 9, 2026
✔ NPI 1295137412 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers
Taxonomy Code101YM0800X
License✔ Licensed in WA · LH 60675467
Also ListedCounselor · Addiction (Substance Use Disorder)Taxonomy 101YA0400X · License CO 60516023 (WA)
144 RAILROAD AVE, Edmonds, WA 98020

Accepted 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

Mariam Opincar Merrin Ma, Lpcc, Lmhc, Sudp 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 ID6103350426
PECOS Enrollment IDI20241108003283
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 Mariam Merrin reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Marriage & Family Therapist
1622 4TH ST
Santa Rosa, CA 95404
  • Reassigned Medicare billing, California enrollment
  • 5 clinicians in this Medicare group

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 6

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

Mechanotherapist
144 RAILROAD AVE, SUITE 213
EDMONDS, WA 98020
Counselor (Mental Health)
144 RAILROAD AVE, SUITE 218
EDMONDS, WA 98020
Counselor (Mental Health)
144 RAILROAD AVE, SUITE 202
EDMONDS, WA 98020
Clinic/Center (Mental Health (Including Community Mental Health Center))
144 RAILROAD AVE, 202
EDMONDS, WA 98020
Community/Behavioral Health
144 RAILROAD AVE
EDMONDS, WA 98020
Massage Therapist
144 RAILROAD AVE
EDMONDS, WA 98020

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 Mariam Merrin's NPI number?

The NPI number for Mariam Merrin is 1295137412. It was assigned to this individual provider in the NPPES registry on September 18, 2014.

Where is Mariam Merrin located?

Mariam Merrin practices at 144 Railroad Ave, Edmonds, WA 98020. The listed phone number is (206) 486-0242.

What is Mariam Merrin's specialty?

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

Is Mariam Merrin enrolled in Medicare?

Yes. Mariam Merrin 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 Mariam Merrin's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mariam Merrin reassigns Medicare benefits to Kendall Individual Family And Marriage Therapists Inc (Santa Rosa, CA). 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 Mariam Merrin's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mariam Merrin accept?

Health plans from Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Mariam Merrin 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 Mariam Merrin was last updated on February 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months 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.