MEGAN OLIVIA GILSON ARNP
NPI 1811535750
Nurse Practitioner in Seattle, WA
About Megan Olivia Gilson Arnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MEGAN OLIVIA GILSON ARNP (NPI 1811535750) is an individual nurse practitioner in Seattle, Washington, licensed in Washington (AP61048347) and active in the NPI registry since December 2019. She is enrolled in Medicare PECOS, is affiliated with Musc Medical Center, and maintains a secondary practice location in Seattle.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
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
Megan Olivia Gilson Arnp 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 Reassignments
2Medicare enrollment records show Megan Gilson reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Seattle, WA 98104
- Reassigned Medicare billing, Washington enrollment
- 4,364 clinicians in this Medicare group
Charleston, SC 29414
- Reassigned Medicare billing, South Carolina enrollment
- Medicare enrollment name: University Medical Associates Of The Medical University Of South Carol
- 2,594 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.
Musc Medical Center
Acute Care Hospitals · Charleston, SCOverlake Hospital Medical Center
Acute Care Hospitals · Bellevue, WAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 98109 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.
SEATTLE, WA 98109
SEATTLE, WA 98109
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 Megan Gilson's NPI number?
The NPI number for Megan Gilson is 1811535750. It was assigned to this individual provider in the NPPES registry on December 11, 2019.
Where is Megan Gilson located?
Megan Gilson practices at 825 Eastlake Ave E, Seattle, WA 98109. The listed phone number is (206) 520-5000.
What is Megan Gilson's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Megan Gilson enrolled in Medicare?
Yes. Megan Gilson 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 Megan Gilson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Megan Gilson reassigns Medicare benefits to 2 organizations: The Association Of University Physicians (Seattle, WA) and University Medical Associates (Charleston, SC). 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 Megan Gilson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Megan Gilson accept?
Health plans from First Choice Next and Premera Blue Cross Blue Shield of Alaska list Megan Gilson 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 Megan Gilson affiliated with any hospitals?
According to CMS data, Megan Gilson is affiliated with Musc Medical Center and Overlake Hospital Medical Center.
When was this NPI record last updated?
The NPPES record for Megan Gilson was last updated on July 14, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.
# Megan Olivia Gilson, ARNP · NPI 1811535750
Nurse Practitioner physician in Seattle, Washington. Individual provider, active in the CMS NPPES registry since December 11, 2019.
## Identity
- **NPI:** 1811535750 (Entity type: Individual)
- **Enumerated:** December 11, 2019
- **Primary specialty:** Nurse Practitioner · taxonomy 363L00000X
- **State license:** AP61048347 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 825 EASTLAKE AVE E, Seattle, WA 98109-4405
- **Phone:** (206) 520-5000
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): The Association Of University Physicians (NPI 1023041159, Seattle, WA); University Medical Associates (NPI 1760413835, Charleston, SC) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2013
## Record status
- **NPPES last updated:** July 14, 2025
---
Source: [NPI Profile](https://npiprofile.com/npi/1811535750) · Data from the CMS NPPES public registry.