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Obstetrics/Gynecology

Grace Bay, DO

Works at hospitals in Arlington, WA · Mount Vernon, WA · Washington

Summary

Grace Bay, DO (Obstetrics/Gynecology) is listed by Medicare at 2 hospitals in Arlington, WA and Mount Vernon, WA. NPI 1215428420. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Grace Bay, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Obstetrics/GynecologyPrimary specialty
YesAccepts Medicare assignment
8Years since medical school (graduated 2018)
FemaleGender (as listed)
Public Hospital Dist No 1 SkagitGroup practice

Quick answers

Which hospitals does Grace Bay work at?
Medicare's official clinician data lists Grace Bay at 2 hospitals: Cascade Valley Hospital and Skagit Valley Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Grace Bay see patients?
Medicare's clinician data lists 2 practice locations, including Mount Vernon, WA and Arlington, WA. Call before your visit to confirm the address.
What is Grace Bay's specialty?
Medicare lists Obstetrics/Gynecology as the primary specialty.
Does Grace Bay accept Medicare assignment?
Yes. Medicare's clinician data says Grace Bay accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Grace Bay?
(360) 428-2500, as listed in official Medicare / NPI Registry data.
What is Grace Bay's NPI number?
1215428420. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Grace Bay works

Medicare's Facility Affiliation Data lists Grace Bay at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Grace Bay is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Grace Bay as a member of this group (CMS data updated 2026-10-02).

  • Public Hospital Dist No 1 Skagit323 clinicians in the group

Specialties

Find other Obstetrics/Gynecology doctors in Washington →

Other OB-GYNs in Mount Vernon

Clinicians with the same Medicare primary specialty in Mount Vernon, WA — not a recommendation.

All OB-GYNs in Mount Vernon →

Clinician information

CredentialDO
Graduation year2018
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1215428420
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians