MOLLY MULLEN ARNP
NPI 1861794604
Nurse Practitioner - Gerontology in Seattle, WA

Active since November 30, 2010PECOS EnrolledAccepts Medicare Assignment
325 9TH AVE, SEATTLE, WA 98104(206) 520-5000 Get Directions Write a Review

NPPES record last updated: February 3, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Feb 3, 2026, Apr 26, 2021 (2 updates tracked since 2021).

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

NPI1861794604
Entity TypeIndividualFemale
Primary Taxonomy363LG0600X
Provider Legal NameMOLLY MULLENCredential: ARNP
Location Address325 9TH AVESeattle, WA 98104-2420
Mailing AddressPo Box 50095Seattle, WA 98145-5095 · (206) 520-5700
Sole ProprietorNo
Medical School CMSOtherGraduated 2010
Enumeration DateNovember 30, 2010
Last NPPES UpdateFebruary 3, 20262 updates tracked since enumeration
NPPES CertifiedFebruary 3, 2026
NPI 1861794604 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyNurse Practitioner · GerontologyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LG0600X
License Licensed in WA · AP60190847
Also ListedNurse PractitionerTaxonomy 363L00000X · License RN60095260 (WA)
325 9TH AVE, Seattle, WA 98104

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

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.

PECOS PAC ID1759551765
PECOS Enrollment IDI20110831000192
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

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, WA
1/5 CMS rating
OwnershipGovernment - Local
CMS Certification Number500064
Location325 9th AvenueSeattle, WA 98104 · King County
Emergency services

Physician 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.

New Patient
$97.43 typical visit price
range $63.67 – $189.37
Typical copayment $24.35 (range $15.91 – $47.34)
Most-billed visit code 99203
Established Patient
$111.00 typical visit price
range $21.12 – $155.00
Typical copayment $27.75 (range $5.28 – $38.75)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

Nurse Practitioner (Acute Care)
325 9TH AVE
SEATTLE, WA 98104
Physical Therapist
325 9TH AVE, BOX 359920
SEATTLE, WA 98104
Pharmacist
325 9TH AVE, MAILSTOP 359912
SEATTLE, WA 98104
Social Worker (Clinical)
325 9TH AVE, BOX 359760
SEATTLE, WA 98104
Physician Assistant (Medical)
325 9TH AVE
SEATTLE, WA 98104
Physical Therapist
325 9TH AVE
SEATTLE, WA 98104
Internal Medicine (Infectious Disease)
325 9TH AVE
SEATTLE, WA 98104
Occupational Therapist
325 9TH AVE
SEATTLE, WA 98104

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.

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 6 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.