SYLVIE G DJOUMESSI PMHNP-BC
NPI 1477321644
Nurse Practitioner - Psychiatric/Mental Health in Seattle, WA
About Sylvie G Djoumessi Pmhnp-bc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SYLVIE G DJOUMESSI PMHNP-BC (NPI 1477321644) is an individual psychiatric/mental health provider in Seattle, Washington, licensed in Washington (AP61519135) and active in the NPI registry since December 2023. She is enrolled in Medicare PECOS, maintains a secondary practice location in Austin, and is a graduate of Other (2023).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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
Sylvie G Djoumessi Pmhnp-bc 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.
Medicare Billing Reassignments
3Medicare enrollment records show Sylvie Djoumessi reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Mountlake Terrace, WA 98043
- Reassigned Medicare billing, Washington enrollment
- 777 clinicians in this Medicare group
Bellingham, WA 98226
- Reassigned Medicare billing, Washington enrollment
- 10 clinicians in this Medicare group
Miami, FL 33130
- Reassigned Medicare billing, Texas and Washington enrollments
- 1,573 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 98119 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SEATTLE, WA 98119
SEATTLE, WA 98119
SEATTLE, WA 98119
SEATTLE, WA 98119
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 Sylvie Djoumessi's NPI number?
The NPI number for Sylvie Djoumessi is 1477321644. It was assigned to this individual provider in the NPPES registry on December 18, 2023.
Where is Sylvie Djoumessi located?
Sylvie Djoumessi practices at 101 Elliott Ave W Ste 500, Seattle, WA 98119. The listed phone number is (425) 678-6463.
What is Sylvie Djoumessi's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.
Is Sylvie Djoumessi enrolled in Medicare?
Yes. Sylvie Djoumessi 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 organizations bill Medicare for Sylvie Djoumessi's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sylvie Djoumessi reassigns Medicare benefits to 3 organizations: Mindful Therapy Group PC (Mountlake Terrace, WA), Lifeline Connections (Bellingham, WA) and Grow Healthcare Group PA (Miami, FL). Each 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 Sylvie Djoumessi's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Sylvie Djoumessi accept?
Health plans from Blue Cross and Blue Shield of Texas, BridgeSpan Health Company, Oscar Insurance Company, Regence BlueCross BlueShield of Oregon and UnitedHealthcare list Sylvie Djoumessi 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 Sylvie Djoumessi was last updated on April 28, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.
# Sylvie G Djoumessi, PMHNP-BC · NPI 1477321644
Psychiatric/Mental Health physician in Seattle, Washington. Individual provider, active in the CMS NPPES registry since December 18, 2023.
## Identity
- **NPI:** 1477321644 (Entity type: Individual)
- **Enumerated:** December 18, 2023
- **Primary specialty:** Nurse Practitioner - Psychiatric/Mental Health · taxonomy 363LP0808X
- **State license:** AP61519135 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 101 ELLIOTT AVE W STE 500, Seattle, WA 98119-4292
- **Phone:** (425) 678-6463
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Mindful Therapy Group PC (NPI 1316238678, Mountlake Terrace, WA); Lifeline Connections (NPI 1144703836, Bellingham, WA); Grow Healthcare Group PA (NPI 1245845932, Miami, FL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2023
## Record status
- **NPPES last updated:** April 28, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1477321644) · Data from the CMS NPPES public registry.