MARGARET FAY SIEGFRIED ARNP
NPI 1164752655
Nurse Practitioner - Acute Care in Seattle, WA

Active since January 05, 2010PECOS EnrolledAccepts Medicare Assignment
93.09/100
CMS Quality Rating
1101 MADISON ST, STE 200, SEATTLE, WA 98104(206) 386-3660(206) 386-3644 Get Directions Write a Review

NPPES record last updated: January 5, 2010. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Margaret Fay Siegfried Arnp NPPES

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

MARGARET FAY SIEGFRIED ARNP (NPI 1164752655) is an individual acute care provider in Seattle, Washington, licensed in Washington (AP60106317) and active in the NPI registry since January 2010. She is enrolled in Medicare PECOS, is affiliated with University Of Washington Medical Ctr, and is a graduate of Other (2009).

NPPES Registry Identity

NPI1164752655
Entity TypeIndividualFemale
Primary Taxonomy363LA2100X
Provider Legal NameMARGARET FAY SIEGFRIEDCredential: ARNP
Location Address1101 MADISON ST, STE 200Seattle, WA 98104-1306
Mailing Address1101 Madison St, Ste 200Seattle, WA 98104-1306 · (206) 386-3660 · Fax (206) 386-3644
Fax(206) 386-3644
Sole ProprietorNo
Medical School CMSOtherGraduated 2009
Enumeration DateJanuary 5, 2010
NPI 1164752655 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyNurse Practitioner · Acute CarePhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LA2100X
License Licensed in WA · AP60106317
1101 MADISON ST, Seattle, WA 98104

Other Names 1

Former Name (1)Margaret Fay Stewart-gordon

Accepted Insurance

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

Margaret Fay Siegfried 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 ID3577698273
PECOS Enrollment IDI20100319000655
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.

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.

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
164 services127 patients

Hospital Affiliations CMS Care Compare

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

University Of Washington Medical Ctr

Acute Care Hospitals · Seattle, WA
3/5 CMS rating
OwnershipGovernment - State
CMS Certification Number500008
Location1959 NE Pacific St Box 356151Seattle, WA 98195 · King County
Emergency services Birthing friendly

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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

93.09/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality73.95
Promoting Interoperability100
Improvement Activities40

Referred Medical Equipment & Supplies CMS DME claims 6

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Tacrolimus, extended release, (envarsus xr), oral, 0.25 mg J7503
Treatment-Chemotherapy · category RH002N
3 suppliers16 claims2,748 services$1.19 avg. paid by Medicare
Tacrolimus, immediate release, oral, 1 mg J7507
Treatment-Treatment - Miscellaneous · category RX029N
8 suppliers46 claims3,420 services$0.30 avg. paid by Medicare
Prednisone, immediate release or delayed release, oral, 1 mg J7512
Treatment-Treatment - Miscellaneous · category RX029N
3 suppliers20 claims3,075 services$0.01 avg. paid by Medicare
Mycophenolic acid, oral, 180 mg J7518
Treatment-Treatment - Miscellaneous · category RX029N
6 suppliers27 claims2,698 services$1.06 avg. paid by Medicare
Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for the first prescription in a 30-day period Q0511
Treatment-Chemotherapy · category RH012N
8 suppliers25 claims25 services$17.47 avg. paid by Medicare
Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for a subsequent prescription in a 30-day period Q0512
Treatment-Chemotherapy · category RH012N
9 suppliers78 claims80 services$12.05 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

Obstetrics & Gynecology
1101 MADISON ST, #1150
SEATTLE, WA 98104
Ophthalmology
1101 MADISON ST, STE. 600
SEATTLE, WA 98104
Pediatrics (Pediatric Cardiology)
1101 MADISON ST, STE 800
SEATTLE, WA 98104
Midwife
1101 MADISON ST, SUITE 950
SEATTLE, WA 98104
Internal Medicine (Rheumatology)
1101 MADISON ST, SUITE 301
SEATTLE, WA 98104
Surgery
1101 MADISON ST
SEATTLE, WA 98104
Physical Medicine & Rehabilitation (Pain Medicine)
1101 MADISON ST, SUITE 200
SEATTLE, WA 98104
Clinic/Center (Ambulatory Surgical)
1101 MADISON ST, SUITE 1280
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 Margaret Siegfried's NPI number?

The NPI number for Margaret Siegfried is 1164752655. It was assigned to this individual provider in the NPPES registry on January 5, 2010. The provider is also known as Margaret Fay Stewart-Gordon.

Where is Margaret Siegfried located?

Margaret Siegfried practices at 1101 Madison St Ste 200, Seattle, WA 98104. The listed phone number is (206) 386-3660.

What is Margaret Siegfried's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.

Is Margaret Siegfried enrolled in Medicare?

Yes. Margaret Siegfried 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.

What insurance does Margaret Siegfried accept?

Health plans from PacificSource Health Plans, Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Margaret Siegfried 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 Margaret Siegfried affiliated with any hospitals?

According to CMS data, Margaret Siegfried is affiliated with University Of Washington Medical Ctr.

When was this NPI record last updated?

The NPPES record for Margaret Siegfried was last updated on January 5, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.