DR. MARIEL LIANE BALBOA DO
NPI 1326676248
Family Medicine in Mill Creek, WA
About Dr. Mariel Liane Balboa Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARIEL LIANE BALBOA DO (NPI 1326676248) is an individual family medicine provider in Mill Creek, Washington, licensed in Washington (OP61416306) and active in the NPI registry since March 2020. She is enrolled in Medicare PECOS, is affiliated with Providence Regional Medical Center Everett, and maintains a secondary practice location in Seattle.
NPPES Registry Identity
Specialties & Licenses
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
Dr. Mariel Liane Balboa 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 Reassignments
2Medicare enrollment records show Mariel Balboa reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Everett, WA 98201
- Reassigned Medicare billing, Washington enrollment
- 1,285 clinicians in this Medicare group
Seattle, WA 98122
- Reassigned Medicare billing, Washington enrollment
- 911 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 16
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Providence Regional Medical Center Everett
Acute Care Hospitals · Everett, WAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 98012 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 3
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 Mariel Balboa's NPI number?
The NPI number for Mariel Balboa is 1326676248. It was assigned to this individual provider in the NPPES registry on March 27, 2020.
Where is Mariel Balboa located?
Mariel Balboa practices at 15418 Main St Ste 200, Mill Creek, WA 98012. The listed phone number is (425) 225-8000.
What is Mariel Balboa's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Mariel Balboa enrolled in Medicare?
Yes. Mariel Balboa 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 Mariel Balboa's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mariel Balboa reassigns Medicare benefits to 2 organizations: Optum Care Washington PLLC (Everett, WA) and The Polyclinic PLLC (Seattle, WA). 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 Mariel Balboa's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mariel Balboa accept?
Health plans from Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Mariel Balboa 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 Mariel Balboa affiliated with any hospitals?
According to CMS data, Mariel Balboa is affiliated with Providence Regional Medical Center Everett.
When was this NPI record last updated?
The NPPES record for Mariel Balboa was last updated on May 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Dr. Mariel Liane Balboa, DO · NPI 1326676248
Family Medicine physician in Mill Creek, Washington. Individual provider, active in the CMS NPPES registry since March 27, 2020.
## Identity
- **NPI:** 1326676248 (Entity type: Individual)
- **Enumerated:** March 27, 2020
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** OP61416306 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 15418 MAIN ST STE 200, Mill Creek, WA 98012-9030
- **Phone:** (425) 225-8000 · **Fax:** (142) 522-5802
## 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): Optum Care Washington PLLC (NPI 1831186766, Everett, WA); The Polyclinic PLLC (NPI 1174594634, Seattle, WA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2020
## Record status
- **NPPES last updated:** May 8, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1326676248) · Data from the CMS NPPES public registry.