Margaret Bickley Coston, APRN
Nurse Practitioner · Seattle, WA
Margaret Bickley Coston, APRN is a nurse practitioner with a practice address in Seattle, Washington, and NPI 1033686571, issued on Nov 1, 2018. Check the license (Washington AP61036667, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Margaret Bickley Coston
- Credential
- APRN
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- AP61036667 WA
Self-reported in NPPES; status is on the state search - Practice location
- 825 Eastlake Ave E, Seattle, WA 98109
- Phone
- (206) 520-5000
- Enumerated
- Nov 1, 2018
- Record last updated
- Aug 21, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20200826003110); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 825 Eastlake Ave E
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Margaret Bickley Coston in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license AP61036667Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
77% fewer Medicare Part D claims than the average nurse practitioner in 2024
251 Medicare Part D claims for 86 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.
Most prescribed
- Letrozole55 claims
- Anastrozole34 claims
- Gabapentin23 claims
- Tamoxifen Citrate14 claims
- Ibrance12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 93.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- The Association OF University PhysiciansSeattle, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
569 nurse practitioner records list a practice address in Seattle
They are 569 of the 41,956 NPPES records with a practice address in Seattle, and 2,308 nurse practitioner records in Washington.
All 569 in Seattle → All 2,308 in Washington → Every provider in Seattle →
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Common questions
What is Margaret Bickley Coston, APRN's NPI number?
Margaret Bickley Coston, APRN's National Provider Identifier (NPI) is 1033686571, issued on Nov 1, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Margaret Bickley Coston, APRN located?
The NPPES record lists a practice address at 825 Eastlake Ave E, Seattle, WA, 98109. Phone: (206) 520-5000. Providers update this record themselves, so call before visiting.
How can I verify Margaret Bickley Coston, APRN's license?
NPPES lists Washington license number AP61036667, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does Margaret Bickley Coston, APRN prescribe under Medicare Part D?
In 2024, Margaret Bickley Coston, APRN had 251 Medicare Part D claims for 86 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.
What is Margaret Bickley Coston, APRN's MIPS final score?
The 2023 MIPS final score is 93.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.