NANCI JAYNE MARQUESS MD
NPI 1730258500
Pediatrics in Bellevue, WA
About Nanci Jayne Marquess Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NANCI JAYNE MARQUESS MD (NPI 1730258500) is an individual pediatrics provider in Bellevue, Washington, licensed in Washington (MD00027591) and active in the NPI registry since November 2006. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Nanci Jayne Marquess Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Nanci Marquess reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Seattle, WA 98104
- Reassigned Medicare billing, Washington enrollment
- 94 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 98007 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.
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 Nanci Marquess's NPI number?
The NPI number for Nanci Marquess is 1730258500. It was assigned to this individual provider in the NPPES registry on November 7, 2006.
Where is Nanci Marquess located?
Nanci Marquess practices at 14350 SE Eastgate Way, Bellevue, WA 98007. The listed phone number is (206) 296-9770.
What is Nanci Marquess's specialty?
The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.
Is Nanci Marquess enrolled in Medicare?
Yes. Nanci Marquess is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Nanci Marquess's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nanci Marquess reassigns Medicare benefits to King County Finance (Seattle, 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 Nanci Marquess's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Nanci Marquess accept?
Health plans from Ambetter Health list Nanci Marquess 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 Nanci Marquess was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.
# Nanci Jayne Marquess, MD · NPI 1730258500
Pediatrics physician in Bellevue, Washington. Individual provider, active in the CMS NPPES registry since November 7, 2006.
## Identity
- **NPI:** 1730258500 (Entity type: Individual)
- **Enumerated:** November 7, 2006
- **Primary specialty:** Pediatrics · taxonomy 208000000X
- **State license:** MD00027591 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 14350 SE EASTGATE WAY, Bellevue, WA 98007-6458
- **Phone:** (206) 296-9770
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** King County Finance (NPI 1306903604, Seattle, WA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 8, 2007
- **Other identifiers:** Medicare UPIN B29824 (WA); Medicaid 8148264 (WA)
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Source: [NPI Profile](https://npiprofile.com/npi/1730258500) · Data from the CMS NPPES public registry.