MRS. KELLI MONIQUE WILLIAMS PMHNP
NPI 1740903848
Nurse Practitioner - Psychiatric/Mental Health in Tukwila, WA

Active since September 22, 2022PECOS EnrolledAccepts Medicare Assignment
16000 CHRISTENSEN RD STE 200, TUKWILA, WA 98188(702) 589-4871 Get Directions Write a Review

NPPES record last updated: August 27, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 27, 2026, Aug 5, 2026, Jul 29, 2026 and 2 more (5 updates tracked since 2022).

About Mrs. Kelli Monique Williams Pmhnp NPPES

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

MRS. KELLI MONIQUE WILLIAMS PMHNP (NPI 1740903848) is an individual psychiatric/mental health provider in Tukwila, Washington, licensed in Washington (AP70130110) and active in the NPI registry since September 2022. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (2025).

NPPES Registry Identity

NPI1740903848
Entity TypeIndividualFemale
Primary Taxonomy363LP0808X
Provider Legal NameMRS. KELLI MONIQUE WILLIAMSCredential: PMHNP
Location Address16000 CHRISTENSEN RD STE 200Tukwila, WA 98188-2925
Mailing Address9131 Downing StRosenberg, TX 77469-2387 · (281) 677-0283
Sole ProprietorYes
Medical School CMSOtherGraduated 2025
Enumeration DateSeptember 22, 2022
Last NPPES UpdateAugust 27, 20265 updates tracked since enumeration
NPPES CertifiedAugust 27, 2026
✔ NPI 1740903848 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
Licenses✔ Licensed in WA · AP70130110✔ Licensed in OR · 10061799
Also ListedRegistered NurseTaxonomy 163W00000X · License 1232958 (TX)
16000 CHRISTENSEN RD STE 200, Tukwila, WA 98188

Secondary Practice Locations 2

Location 16003 SE 136th AvePortland, OR 97236-4567 · Phone (702) 589-4872 · Fax (702) 589-4872
Location 29131 Downing StRosenberg, TX 77469-2387 · Phone (281) 677-0283

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

Mrs. Kelli Monique Williams Pmhnp 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 ID9436622545
PECOS Enrollment IDI20260622000777
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 Reassignments

2

Medicare enrollment records show Kelli Williams reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Mental Health
16000 CHRISTENSEN RD STE 200
Tukwila, WA 98188
  • Reassigned Medicare billing, Washington enrollment
  • 43 clinicians in this Medicare group
Psychiatry
6003 SE 136TH AVE
Portland, OR 97236
  • Reassigned Medicare billing, Oregon enrollment
  • 14 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 98188 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$97.43 typical visit price
range $63.67 – $189.37
Typical copayment $24.35 (range $15.91 – $47.34)
Most-billed visit code 99203
Established Patient
$111.00 typical visit price
range $21.12 – $155.00
Typical copayment $27.75 (range $5.28 – $38.75)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 9

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

Nurse Practitioner (Psychiatric/Mental Health)
16000 CHRISTENSEN RD STE 200
TUKWILA, WA 98188
Counselor (Mental Health)
16000 CHRISTENSEN RD STE 200
TUKWILA, WA 98188
Peer Specialist
16000 CHRISTENSEN RD STE 200
TUKWILA, WA 98188
Peer Specialist
16000 CHRISTENSEN RD STE 200
TUKWILA, WA 98188
Nurse Practitioner
16000 CHRISTENSEN RD STE 200
TUKWILA, WA 98188
Peer Specialist
16000 CHRISTENSEN RD STE 200
TUKWILA, WA 98188
Nurse Practitioner (Psychiatric/Mental Health)
16000 CHRISTENSEN RD STE 200
TUKWILA, WA 98188
Peer Specialist
16000 CHRISTENSEN RD STE 200
TUKWILA, WA 98188

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 Kelli Williams's NPI number?

The NPI number for Kelli Williams is 1740903848. It was assigned to this individual provider in the NPPES registry on September 22, 2022.

Where is Kelli Williams located?

Kelli Williams practices at 16000 Christensen Rd Ste 200, Tukwila, WA 98188. The listed phone number is (702) 589-4871.

What is Kelli Williams's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Is Kelli Williams enrolled in Medicare?

Yes. Kelli Williams 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 Kelli Williams's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Kelli Williams reassigns Medicare benefits to 2 organizations: Harbor Youth And Family Counseling (Tukwila, WA) and Oregon Behavioral Health Solutions, LLC (Portland, OR). 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 Kelli Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Kelli Williams accept?

Health plans from Ambetter Health, BridgeSpan Health Company and Regence BlueCross BlueShield of Oregon list Kelli Williams 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 Kelli Williams was last updated on August 27, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.