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MARGIE NIELSEN DNP, FNP-BC
NPI 1124557715
Nurse Practitioner - Family in Beaverton, OR

Active since June 07, 2017PECOS EnrolledAccepts Medicare Assignment
15950 SW MILLIKAN WAY, BEAVERTON, OR 97003(503) 646-0161(503) 643-7459 Get Directions Write a Review

NPPES record last updated: August 19, 2024. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Aug 19, 2024, Feb 4, 2021, Aug 10, 2020 and 2 more (5 updates tracked since 2017).

About Margie Nielsen Dnp, Fnp-bc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARGIE NIELSEN DNP, FNP-BC (NPI 1124557715) is an individual family provider in Beaverton, Oregon, licensed in Oregon (202100467NP-PP) and active in the NPI registry since June 2017. She is enrolled in Medicare PECOS, is affiliated with Providence St Vincent Medical Center, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1124557715
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameMARGIE NIELSENCredential: DNP, FNP-BC
Location Address15950 SW MILLIKAN WAYBeaverton, OR 97003-5170
Mailing Address800 Sw 13th AvePortland, OR 97205-1999 · (503) 221-0161
Phone(503) 646-0161
Fax(503) 643-7459
Sole ProprietorNo
Medical School CMSOtherGraduated 2017
Enumeration DateJune 7, 2017
Last NPPES UpdateAugust 19, 20245 updates tracked since enumeration
NPPES CertifiedAugust 19, 2024
✔ NPI 1124557715 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in OR · 202100467NP-PP
Also ListedNurse Practitioner · PediatricsTaxonomy 363LP0200X · License 201707942 (OR), AP60889600 (WA)
15950 SW MILLIKAN WAY, Beaverton, OR 97003
Open in Google Maps ↗

Other Names 1

Former Name (1)Margie Louise Eccleston

Secondary Practice Locations 2

Location 19370 SW Greenburg Rd Ste 200Tigard, OR 97223-5421 · Phone (877) 448-3627
Location 22850 SE Powell Valley RdGresham, OR 97080-1494 · Phone (503) 666-5050

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include BridgeSpan Health Company, Moda Health Plan, Inc., PacificSource Health Plans and more.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

Margie Nielsen Dnp, Fnp-bc 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 ID6608132766
PECOS Enrollment IDI20171107001132
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.

Medicare Billing Reassignments

3

Medicare enrollment records show Margie Nielsen reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Portland Clinic
4.3 mi
Ambulatory Surgical
9100 SW OLESON ROAD
Tigard, OR 97223
  • Reassigned Medicare billing, Oregon enrollment
  • 105 clinicians in this Medicare group
NPI 1508040486 (503) 445-9066
Dispatchhealth-Oregon PC
5.5 mi
Emergency Medicine
8060 SW PFAFFLE ST STE 102
Portland, OR 97223
  • Reassigned Medicare billing, Oregon enrollment
  • 36 clinicians in this Medicare group
NPI 1649822990 (503) 714-8987
Legacy Clinics LLC
7.5 mi
Clinic/Center
1130 NW 22ND AVE STE 220
Portland, OR 97210
  • Reassigned Medicare billing, Oregon enrollment
  • 1,248 clinicians in this Medicare group
NPI 1902827272 (503) 413-2901

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 9

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.

Insertion of needle into vein for collection of blood sample 36415
This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.
46 services40 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
43 services41 patients
Blood test, lipids (cholesterol and triglycerides) 80061
A lipid panel is a blood test that measures fats and fatty substances, such as cholesterol and triglycerides. These substances are used by your body as a source of energy. High levels can lead to health issues, including heart disease.
28 services27 patients
Blood test, comprehensive group of blood chemicals 80053
A comprehensive group of blood chemicals test, also known as a comprehensive metabolic panel, is a blood test that measures your sugar level, electrolyte and fluid balance, kidney function, and liver function. This helps to check your body's overall health.
26 services26 patients
Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 85025
A Complete Blood Cell Count is a common test that measures various components of the blood, including red cells (carry oxygen), white cells (fight infection), and platelets (help blood clot). An automated test ensures accuracy. The differential count provides detailed information about white cell types.
20 services19 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
20 services20 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Providence St Vincent Medical Center

Acute Care Hospitals · Portland, OR
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number380004
Location9205 SW Barnes RoadPortland, OR 97225 · Washington County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 97003 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
$90.51 typical visit price
range $58.99 – $176.88
Typical copayment $22.62 (range $14.74 – $44.22)
Most-billed visit code 99203
Established Patient
$103.51 typical visit price
range $19.32 – $144.79
Typical copayment $25.87 (range $4.83 – $36.19)
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 11

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

LAUREN F BURKE PA
Physician Assistant
15950 SW MILLIKAN WAY
BEAVERTON, OR 97003
Washington County (503) 643-7459
HELENA PANG
Internal Medicine
15950 SW MILLIKAN WAY
BEAVERTON, OR 97003
Washington County (503) 646-0161
LAKEN WANZENRIED LCSW
Social Worker (Clinical)
15950 SW MILLIKAN WAY
BEAVERTON, OR 97003
Washington County (503) 646-0161
MR. MATTHEW MICHAEL KLINEWSKI FNP
Nurse Practitioner (Family)
15950 SW MILLIKAN WAY
BEAVERTON, OR 97003
Washington County (503) 646-0161
RANDOLPH JAMES PITTS MD
Family Medicine
15950 SW MILLIKAN WAY
BEAVERTON, OR 97003
Washington County (503) 646-0161
ASHLYN STORAKER LCSW
Social Worker (Clinical)
15950 SW MILLIKAN WAY
BEAVERTON, OR 97003
Washington County (503) 646-0161
TRISHA HASKINS FNP
Nurse Practitioner (Family)
15950 SW MILLIKAN WAY
BEAVERTON, OR 97003
Washington County (503) 646-0161
BETH ELAINE JENNINGS PT
Physical Therapist
15950 SW MILLIKAN WAY
BEAVERTON, OR 97003
Washington County (503) 646-0161

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 Margie Nielsen's NPI number?

The NPI number for Margie Nielsen is 1124557715. It was assigned to this individual provider in the NPPES registry on June 7, 2017. The provider is also known as Margie Louise Eccleston.

Where is Margie Nielsen located?

Margie Nielsen practices at 15950 SW Millikan Way, Beaverton, OR 97003. The listed phone number is (503) 646-0161.

What is Margie Nielsen's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Margie Nielsen enrolled in Medicare?

Yes. Margie Nielsen 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 Margie Nielsen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Margie Nielsen reassigns Medicare benefits to 3 organizations: Portland Clinic (Tigard, OR), Dispatchhealth-Oregon PC (Portland, OR) and Legacy Clinics LLC (Portland, OR). 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 Margie Nielsen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Margie Nielsen accept?

Health plans from BridgeSpan Health Company, Moda Health Plan, Inc., PacificSource Health Plans, Providence Health Plan and Regence BlueCross BlueShield of Oregon list Margie Nielsen 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 Margie Nielsen affiliated with any hospitals?

According to CMS data, Margie Nielsen is affiliated with Providence St Vincent Medical Center.

When was this NPI record last updated?

The NPPES record for Margie Nielsen was last updated on August 19, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years 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.