LACEY L SIEKAS ARNP
NPI 1760531842
Nurse Practitioner in Seattle, WA

Q: What is Lacey Siekas's NPI number?

The NPI number for Lacey Siekas is 1760531842. It was assigned to this individual provider in the NPPES registry on January 9, 2007.

Q: What is Lacey Siekas's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Q: When was this NPI record last updated?

The NPPES record for Lacey Siekas was last updated on April 11, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.

Active since January 09, 2007PECOS Enrolled

1100 9TH AVE, SEATTLE, WA 98101(206) 223-6600 Get Directions Write a Review

NPPES record last updated: April 11, 2008. Verified against the NPPES registry weekly; last sync: November 01, 2026.

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About Lacey L Siekas Arnp NPPES

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

LACEY L SIEKAS ARNP (NPI 1760531842) is an individual nurse practitioner in Seattle, Washington, licensed in Washington (AP30006526) and active in the NPI registry since January 2007. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1760531842

Entity TypeIndividualFemale

Primary Taxonomy363L00000X

Provider Legal NameLACEY L SIEKASCredential: ARNP

Location Address1100 9TH AVESeattle, WA 98101-2756

Mailing Address1100 Olive Way Msc M4-paSeattle, WA 98101-1873 · (206) 515-5811

Phone(206) 223-6600

Sole ProprietorNo

Enumeration DateJanuary 9, 2007

Last NPPES UpdateApril 11, 2008

✔ NPI 1760531842 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363L00000X

License✔ Licensed in WA · AP30006526

Definition

(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

1100 9TH AVE, Seattle, WA 98101

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Other Identifiers 9

Medicaid9639352WA

OtherP00088317WA · Railroad Mc#

Other7632CAWA · Blue Shield #

Medicare PINAB40229WA

OtherUS7161430WA · Aetna Specialist Pin

Medicare UPINP43143

Medicare PIN8852087WA

Other0039573WA · Labor And Industries #

Medicare PIN8852086WA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Lacey L Siekas Arnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Lacey Siekas reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Signify Health Medical Associates, PLLC

1,672 mi

General Practice

4055 VALLEY VIEW LN STE 700
Dallas, TX 75244

Reassigned Medicare billing, Washington enrollment
317 clinicians in this Medicare group

NPI 1750845863 (972) 715-3800

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 98101 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 20

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

JACLYN ANN SUBKOVIAK OT

Occupational Therapist

1100 9TH AVE
SEATTLE, WA 98101

King County (206) 341-0461

MARCIE G HUME PHARM.D.

Pharmacist

1100 9TH AVE, MS C3-PO
SEATTLE, WA 98101

King County (206) 223-6877

DR. VINAY GUPTA MD

Internal Medicine (Critical Care Medicine)

1100 9TH AVE
SEATTLE, WA 98101

King County (206) 223-6980

MARY JO BUKOVIC CCP

Contractor

1100 9TH AVE
SEATTLE, WA 98101

King County (206) 223-6600

PEGAH SAFAEIAN D.O.

Physical Medicine & Rehabilitation

1100 9TH AVE
SEATTLE, WA 98101

King County (206) 223-6600

MRS. GENEVIEVE HOUDET-COTE SLP

Speech-Language Pathologist

1100 9TH AVE, MS:H4-PMR
SEATTLE, WA 98101

King County (206) 341-0461

ROBERT DALE MCCLURE MD

Surgery

1100 9TH AVE
SEATTLE, WA 98101

King County (206) 223-6600

VIRGINIA MASON MEDICAL CENTER

Internal Medicine (Gastroenterology)

1100 9TH AVE
SEATTLE, WA 98101

King County (206) 223-6600

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 Lacey Siekas's NPI number?

The NPI number for Lacey Siekas is 1760531842. It was assigned to this individual provider in the NPPES registry on January 9, 2007.

Where is Lacey Siekas located?

Lacey Siekas practices at 1100 9th Ave, Seattle, WA 98101. The listed phone number is (206) 223-6600.

What is Lacey Siekas's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Lacey Siekas enrolled in Medicare?

Yes. Lacey Siekas is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Lacey Siekas's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Lacey Siekas reassigns Medicare benefits to Signify Health Medical Associates, PLLC (Dallas, TX). 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 Lacey Siekas's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Lacey Siekas was last updated on April 11, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.