Mary Oestreich, ARNP
Nurse Practitioner · Everett, WA
Mary Oestreich, ARNP is a nurse practitioner with a practice address in Everett, Washington, and NPI 1073165593, issued on Jul 15, 2019. Check the license (Washington AP60969818, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mary Oestreich
- Credential
- ARNP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License numbers
- AP60969818 WA
RN60361509 WA
Self-reported in NPPES; status is on the state search - Practice location
- 3927 Rucker Ave, Everett, WA 98201
- Phone
- (425) 339-5421
- Enumerated
- Jul 15, 2019
- Record last updated
- Apr 22, 2026
- Fax
- (425) 317-3975
- Medicaid ID
- 2149186 WA
- Medicare enrollment
- Enrolled (PECOS I20200225001527); accepts Medicare assignment
- Medical or professional school
- University Of Washington School Of Medicine, 2019
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 3927 Rucker Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Paul Abson, MDOtolaryngology Physician1336121029
- Alvin AbuegPhysician Assistant1396132015
- Peter Ackerman, MDAnesthesiology Physician1659344414
- Jeffery Adams, MDOtolaryngology Physician1104891175
- Hamed Al-Ghanim, MDFamily Medicine Physician1124039938
- Wendi Alexander, ARNPNurse Practitioner1689757874
Verify Mary Oestreich in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license AP60969818Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
61% fewer Medicare Part D claims than the average nurse practitioner in 2024
435 Medicare Part D claims for 180 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.
Most prescribed
- Omeprazole186 claims
- Pantoprazole Sodium85 claims
- Cholestyramine33 claims
- Lansoprazole19 claims
- Famotidine18 claims
- Amitriptyline Hcl13 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.
Bills Medicare through one group practice
- Optum Care Washington PLLCEverett, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
118 nurse practitioner records list a practice address in Everett
They are 118 of the 7,246 NPPES records with a practice address in Everett, and 2,308 nurse practitioner records in Washington.
All 118 in Everett → All 2,308 in Washington → Every provider in Everett →
Other nurse practitioner records in Washington
- Arthuro AbbidoChelan Falls, WA1396412888
- Saada AbdelaSeattle, WA1881474716
- Glenda Abercrombie, ARNP, FNP-CYakima, WA1114001369
- Hemlal Acharya, ARNP PHMNP-BC, MSAuburn, WA1659146231
- Marja Adair, ARNPRichland, WA1659818318
- Nancy Adam, A.R.N.P.Poulsbo, WA1790835684
- James Adams, NPSpokane, WA1245828227
- Jessica Adams, ARNPBattle Ground, WA1316332463
- Pramoj Adhikari, DNP, RN, FNP - ( C).Everett, WA1396315446
- Girma AdmasuSpokane Valley, WA1568023547
Common questions
What is Mary Oestreich, ARNP's NPI number?
Mary Oestreich, ARNP's National Provider Identifier (NPI) is 1073165593, issued on Jul 15, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Mary Oestreich, ARNP located?
The NPPES record lists a practice address at 3927 Rucker Ave, Everett, WA, 98201. Phone: (425) 339-5421. Providers update this record themselves, so call before visiting.
How can I verify Mary Oestreich, ARNP's license?
NPPES lists Washington license number AP60969818, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does Mary Oestreich, ARNP prescribe under Medicare Part D?
In 2024, Mary Oestreich, ARNP had 435 Medicare Part D claims for 180 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.
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.