MOLLY MULLEN ARNP
NPI 1861794604
Nurse Practitioner - Gerontology in Seattle, WA
About Molly Mullen Arnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MOLLY MULLEN ARNP (NPI 1861794604) is an individual gerontology provider in Seattle, Washington, licensed in Washington (AP60190847) and active in the NPI registry since November 2010. She is enrolled in Medicare PECOS, is affiliated with Harborview Medical Center, and is a graduate of Other (2010).
NPPES Registry Identity
Specialties & Licenses 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 and accepts Medicare assignment
Molly Mullen 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 Molly Mullen 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
Seattle, WA 98109
- Reassigned Medicare billing, Washington enrollment
- 2,678 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Harborview Medical Center
Acute Care Hospitals · Seattle, WAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 98104 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 Molly Mullen's NPI number?
The NPI number for Molly Mullen is 1861794604. It was assigned to this individual provider in the NPPES registry on November 30, 2010.
Where is Molly Mullen located?
Molly Mullen practices at 325 9th Ave, Seattle, WA 98104. The listed phone number is (206) 520-5000.
What is Molly Mullen's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Gerontology, with taxonomy code 363LG0600X.
Is Molly Mullen enrolled in Medicare?
Yes. Molly Mullen 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 Molly Mullen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Molly Mullen reassigns Medicare benefits to 2 organizations: The Association Of University Physicians (Seattle, WA) and Kaiser Foundation Health Plan Of Washington (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 Molly Mullen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Molly Mullen accept?
Health plans from Premera Blue Cross Blue Shield of Alaska list Molly Mullen 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 Molly Mullen affiliated with any hospitals?
According to CMS data, Molly Mullen is affiliated with Harborview Medical Center.
When was this NPI record last updated?
The NPPES record for Molly Mullen was last updated on February 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Molly Mullen, ARNP · NPI 1861794604
Gerontology physician in Seattle, Washington. Individual provider, active in the CMS NPPES registry since November 30, 2010.
## Identity
- **NPI:** 1861794604 (Entity type: Individual)
- **Enumerated:** November 30, 2010
- **Primary specialty:** Nurse Practitioner - Gerontology · taxonomy 363LG0600X
- **State license:** AP60190847 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 325 9TH AVE, Seattle, WA 98104-2420
- **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); Kaiser Foundation Health Plan Of Washington (NPI 1396810701, Seattle, WA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2010
## Record status
- **NPPES last updated:** February 3, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1861794604) · Data from the CMS NPPES public registry.