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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MR. TRISTAN ALEXANDER QUAN LMHC
NPI 1639692387
Counselor - Mental Health in Bellingham, WA

Active since July 24, 2017PECOS EnrolledAccepts Medicare Assignment
PO BOX 28487, BELLINGHAM, WA 98228(360) 671-7663(360) 933-9739 Get Directions Write a Review

NPPES record last updated: October 7, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 7, 2026, Jul 21, 2022, Jul 24, 2017 (3 updates tracked since 2017).

About Mr. Tristan Alexander Quan Lmhc NPPES

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

MR. TRISTAN ALEXANDER QUAN LMHC (NPI 1639692387) is an individual mental health provider in Bellingham, Washington, licensed in Washington (MHC.LH.61549998) and active in the NPI registry since July 2017. He is enrolled in Medicare PECOS and is a graduate of Other (2022).

NPPES Registry Identity

NPI1639692387
Entity TypeIndividualMale
Primary Taxonomy101YM0800X
Provider Legal NameMR. TRISTAN ALEXANDER QUANCredential: LMHC
Location AddressPO BOX 28487Bellingham, WA 98228-0487
Mailing AddressPo Box 28487Bellingham, WA 98228-0487 · (360) 671-7663 · Fax (360) 933-9739
Phone(360) 671-7663
Fax(360) 933-9739
Sole ProprietorNo
Medical School CMSOtherGraduated 2022
Enumeration DateJuly 24, 2017
Last NPPES UpdateOctober 7, 20263 updates tracked since enumeration
NPPES CertifiedOctober 7, 2026
✔ NPI 1639692387 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 · MHC.LH.61549998
PO BOX 28487, Bellingham, WA 98228
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health.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

Mr. Tristan Alexander Quan 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 ID8426580937
PECOS Enrollment IDI20241022000616
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 Tristan Quan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Lydia Place A Nonprofit Corporation
0.5 mi
Community/Behavioral Health
1430 NORTH GARDEN STREET
Bellingham, WA 98226
  • Reassigned Medicare billing, Washington enrollment
  • 4 clinicians in this Medicare group
NPI 1508342759 (360) 671-7663

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

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 Tristan Quan's NPI number?

The NPI number for Tristan Quan is 1639692387. It was assigned to this individual provider in the NPPES registry on July 24, 2017.

Where is Tristan Quan located?

Tristan Quan practices at PO Box 28487, Bellingham, WA 98228. The listed phone number is (360) 671-7663.

What is Tristan Quan's specialty?

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

Is Tristan Quan enrolled in Medicare?

Yes. Tristan Quan 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 Tristan Quan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Tristan Quan reassigns Medicare benefits to Lydia Place A Nonprofit Corporation (Bellingham, 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 Tristan Quan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Tristan Quan accept?

Health plans from Ambetter Health list Tristan Quan 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 Tristan Quan was last updated on October 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 days 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.