GRACE BAY DO
NPI 1215428420
Obstetrics & Gynecology in Arlington, WA
About Grace Bay Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GRACE BAY DO (NPI 1215428420) is an individual obstetrics & gynecology provider in Arlington, Washington, licensed in Washington (OP61300928) and active in the NPI registry since May 2018. She is enrolled in Medicare PECOS, is affiliated with Skagit Valley Hospital, and is a graduate of Other (2018).
NPPES Registry Identity
Specialties & Licenses
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
Grace Bay Do 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 Reassignment
Medicare enrollment records show Grace Bay reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Arlington, WA 98223
- Reassigned Medicare billing, Washington enrollment
- 463 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.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Skagit Valley Hospital
Acute Care Hospitals · Mount Vernon, WACascade Valley Hospital
Acute Care Hospitals · Arlington, WAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 98223 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 15
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ARLINGTON, WA 98223
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 Grace Bay's NPI number?
The NPI number for Grace Bay is 1215428420. It was assigned to this individual provider in the NPPES registry on May 23, 2018.
Where is Grace Bay located?
Grace Bay practices at 903 Medical Center Dr, Arlington, WA 98223. The listed phone number is (360) 435-0242.
What is Grace Bay's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Grace Bay enrolled in Medicare?
Yes. Grace Bay 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 Grace Bay's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Grace Bay reassigns Medicare benefits to Public Hospital Dist No 1 Skagit (Arlington, 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 Grace Bay's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Grace Bay accept?
Health plans from Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Grace Bay 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.
Is Grace Bay affiliated with any hospitals?
According to CMS data, Grace Bay is affiliated with Skagit Valley Hospital and Cascade Valley Hospital.
When was this NPI record last updated?
The NPPES record for Grace Bay was last updated on August 19, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Grace Bay, DO · NPI 1215428420
Obstetrics & Gynecology physician in Arlington, Washington. Individual provider, active in the CMS NPPES registry since May 23, 2018.
## Identity
- **NPI:** 1215428420 (Entity type: Individual)
- **Enumerated:** May 23, 2018
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** OP61300928 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 903 MEDICAL CENTER DR, Arlington, WA 98223-1697
- **Phone:** (360) 435-0242 · **Fax:** (360) 435-9135
## 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:** Public Hospital Dist No 1 Skagit (NPI 1073554903, Arlington, WA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2018
## Record status
- **NPPES last updated:** August 19, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1215428420) · Data from the CMS NPPES public registry.